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                                                                    EXHIBIT 10.6

                                  ORBCOMM INC.
            SECOND AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT

          This Second Amended and Restated Registration Rights Agreement (this
"Agreement") is dated as of December 30, 2005, amends the ORBCOMM Inc. Amended
and Restated Registration Rights Agreement dated as of November 18, 2005 which
amended the ORBCOMM Inc. Registration Rights Agreement, dated as of February 17,
2004, as amended (together with the original Amended and Restated Registration
Rights Agreement, the "Existing Agreement"), by and among ORBCOMM Inc., a
Delaware corporation (the "Company"), and the parties signatories thereto.

                                    RECITALS

          WHEREAS, the Company has authorized the issuance of Series B Preferred
Stock and the necessary parties to the Existing Agreement desire to amend the
Existing Agreement and have agreed to amend the Existing Agreement;

          Accordingly, the parties agree as follows:

          SECTION 1. Definitions; Rules of Interpretation. (a) When used in this
Agreement:

          "Affiliate" means, when used with respect to a specified Person, a
limited or general partner of such Person or another Person that directly, or
indirectly through one or more intermediaries, controls or is controlled by or
is under common control with the Person specified, where "control" means
possession, directly or indirectly, of power to direct or cause the direction of
management or policies of the specified Person (whether through ownership of
securities or partnership or other ownership interests, by contract or
otherwise).

          "Common Stock" means the common stock of the Company, $0.001 par value
per share, and any security into which such Common Stock is converted.

          "Common Stock Equivalents" means all Common Stock outstanding,
together with all shares of Common Stock issuable upon conversion of the
Preferred Stock or exercise of any stock option, warrant, convertible note or
other security or right of any kind convertible into or exchangeable for Common
Stock.

          "Common Stock Holders" means the holders of the Common Stock listed on
Schedule I hereto with respect to shares of Common Stock held by such Holders as
of the date hereof, and shall also include the beneficiaries of the Liquidating
Trust of ORBCOMM Global L.P. (the "Trust"), formerly a Delaware limited
partnership, and the members of ORBCOMM Holdings LLC, a Delaware limited
liability company, upon distribution of the Common Stock by the Trust to its
beneficiaries or by ORBCOMM Holdings LLC to its members.

          "Demanding Holders" means the holders of Registrable Securities
representing (a) at least two thirds (2/3rds) of the Registrable Securities
outstanding as of the date of a demand in the case of the Company's initial
public offering or (b)(i) at least 35% of the Registrable

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Securities outstanding as of the date of a demand or (ii) the Majority of Series
B Preferred Stock in all other cases; provided that Holders with Section 144
Rights shall not be counted in determining the foregoing percentages (but shall
have the right to have their Registrable Securities included in any Demand
Registration).

          "Exchange Act" means the Securities Exchange Act of 1934, as amended,
and the rules and regulations thereunder.

          "Form S-3" means such form under the Securities Act as in effect on
the date hereof or any successor registration form under the Securities Act
subsequently adopted by the SEC.

          "Governmental Authority" means any government, court, administrative
agency or commission or other governmental agency, authority or instrumentality,
domestic or foreign, of competent jurisdiction.

          "Holder" or "Holders" shall mean holders of the Company's securities
party to this Agreement.

          "Holder with Section 144 Rights" means any Holder whose entire
holdings of Registrable Securities are then eligible for resale without
registration and without being limited by any volume or time limitations under
Rule 144 under the Securities Act within any 90 day period, as such rule may be
amended from time to time, or any similar rule or regulation hereafter adopted
by the SEC.

          "Majority Of Series B Preferred Stock" shall have the meaning ascribed
to it in the Company's Third Amended and Restated Certificate of Incorporation,
dated December 30, 2005.

          "New Securities" means any authorized but unissued shares, and any
treasury shares, of capital stock of the Company and all rights, options or
warrants to purchase capital stock, and securities of any type whatsoever that
are, or may become, convertible into capital stock; provided, however, that the
term "New Securities" does not include: (i) equity securities or convertible
debt securities issued pursuant to the acquisition of another corporation or
entity by the Company by merger, purchase of all or substantially all of the
assets or other reorganization or any joint ventures or strategic partnerships
approved by the Board of Directors of the Company, (ii) equity securities or
convertible debt securities issued to vendors or financial institutions as
consideration for or in connection with any contracts or credit facilities
entered into by the Company and approved by the Board of Directors of the
Company, (iii) equity securities or convertible debt securities issued pursuant
to a public offering of the Company's Common Stock registered under the
Securities Act, (iv) equity securities issued in connection with any stock
split, stock dividend or reclassification of Common Stock, Series A Stock or
Series B Stock distributable on a pro rata basis to all holders of such class of
capital stock, (v) equity securities issued or sold pursuant to any employee
stock option plan, directors arrangement or employment or consulting agreement
approved by the Board of Directors of the Company, (vi) the issuance of Series B
Stock (whether at an initial closing or any additional closing) pursuant to the
Purchase Agreement, (vii) the issuance of the Company's Common Stock upon
conversion of the Series A Stock or Series B Stock, (viii) the issuance of
Series A

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Stock pursuant to the Satcom Contribution Agreement or the Sistron Contribution
Agreement, and the issuance of the Company's Common Stock upon conversion
thereof, or (ix) any other issuance, together with any related issuances,
involving not more than one percent (1%) of the Stock then outstanding to any
Person not then an Affiliate of the Company if approved by the Board of
Directors of the Company.

          "PCG Entities" means collectively PCG Satellite Investments, LLC,
CALPERS PCG Corporate Partners, LLC and any Affiliate(s) of any of the
foregoing.

          "Person" means any individual, firm, corporation, partnership, limited
liability company, trust, joint venture, Governmental Authority or other entity,
and shall include any successor (by merger or otherwise) of such entity.

          "Public Sale" means any sale of Registrable Securities to the public
pursuant to a public offering registered under the Securities Act or to the
public through a broker or market-maker pursuant to the provisions of Rule 144
(or any successor rule) adopted under the Securities Act.

          "Purchase Agreement" means the Convertible Note and Stock Purchase
Agreement dated as of December 30, 2005 between, among others, the Company and
PCG Satellite Investments, LLC and MH Investors Satellite LLC.

          "register," "registered" and "registration" refers to a registration
effected by preparing and filing a registration statement or similar document in
compliance with the Securities Act, and the declaration or ordering of
effectiveness of such registration statement or document.

          "Registrable Securities" means (i) any Common Stock, (ii) any Common
Stock issued upon the conversion of the Series A Stock or Series B Stock, (iii)
any Common Stock issued upon conversion of the Warrants and (iv) any Common
Stock issued in connection with any stock dividend with respect to the Series A
Stock or Series B Stock, in each case, held at any time by the Holders; provided
that Registrable Securities shall not include Common Stock or other securities
that have been sold in a Public Sale or held by a Holder whose entire holdings
of Registrable Securities are then eligible for resale without registration and
without regard to volume or time limitations under Rule 144 under the Securities
Act, as such rule may be amended from time to time, or any similar rule or
regulation hereafter adopted by the SEC. For purposes of this Agreement, the
number of Registrable Securities outstanding from time to time shall be
determined on an as-converted to Common Stock basis.

          "SEC" means the Securities and Exchange Commission.

          "Series A Stock" means the Series A Convertible Redeemable Preferred
Stock of the Company.

          "Series A Holders" means the holders of the Series A Stock listed on
Schedule I hereto with respect to the Series A Stock or Common Stock issued upon
conversion of the Series A Stock held by such Holder.

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          "Series B Holders" means the holders of the Series B Stock listed on
Schedule I hereto with respect to the Series B Stock or Common Stock issued upon
conversion of the Series B Stock held by such Holder.

          "Series B Stock" means the Series B Convertible Redeemable Preferred
Stock of the Company.

          "Securities Act" means the Securities Act of 1933, as amended, and the
rules and regulations thereunder.

          "Stock" means, collectively, the Common Stock, the Series A Stock and
the Series B Stock.

          "Warrants" means the warrants to purchase Common Stock of the Company
owned by a Holder as of the date hereof.

          (b) Headings and Rules of Interpretation. Descriptive headings are for
convenience only and shall not control or affect the meaning or construction of
any provision of this Agreement. Except as otherwise expressly provided in this
Agreement, the following rules of interpretation apply to this Agreement: (i)
the singular includes the plural and the plural includes the singular; (ii) "or"
and "any" are not exclusive and "include" and "including" are not limiting;
(iii) a reference to any agreement or other contract includes permitted
supplements and amendments; (iv) a reference to a law includes any amendment or
modification to such law and any rules or regulations issued thereunder; (v) a
reference to a Person includes its permitted successors and assigns; and (vi) a
reference in this Agreement to an Article, Section, Annex, Exhibit or Schedule
is to the Article, Section, Annex, Exhibit or Schedule of this Agreement.

          SECTION 2. Demand Registrations. (a) Exercise of Rights. At any time
after the first to occur of eighteen months from the date of this Agreement or
six months after an initial public offering of the Company's Common Stock, upon
the written demand of the Demanding Holders, or after the fifth anniversary of
this Agreement, upon the written demand of the Majority of Series B Preferred
Stock, the Company shall use its best efforts to effect, as expeditiously as
possible, the registration (a "Demand Registration") under the Securities Act of
(i) all Registrable Securities held by such Demanding Holders which are
requested to be registered in the initial written demand and (ii) any additional
Registrable Securities requested to be registered by any Holders who elect to
include Registrable Securities in such Demand Registration in a written notice
or notices given within five business days of the date the Demand Registration
Notice (as defined below) is given by the Company (together with the Registrable
Securities described in clause (i), the "Included Securities"). Promptly (but in
no event later than five business days) after the receipt by the Company of any
written demand pursuant to clause (i) of the immediately preceding sentence, the
Company will give written notice of such demand to all the Holders (the "Demand
Registration Notice"). The Company shall (x) cause to be filed as soon as
practicable and in no event later than one hundred twenty (120) days after
delivery to the Company of the Demand Registration Notice, a registration
statement covering such Registrable Securities, which the Company has been so
requested to register by the Demanding Holders, (y) effect the registration
under the Securities Act of the Included Securities as expeditiously as

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possible and use its best efforts to have such registration become and remain
effective as provided in Section 4 hereof, and (z) refrain from filing any other
registration statement, other than pursuant to a registration statement on Form
S-4 or S-8 (or similar or successor forms) with respect to any other securities
of the Company until such date which is sixty (60) days following effectiveness
of the registration statement filed in response to the Demand Registration
Notice. Notwithstanding the foregoing, the Company shall have the right to delay
any Demand Registration for a single period of not more than 90 days after the
date of any request to register the Registrable Securities pursuant to the
Demand Registration, if, at the time of such request, the Company is preparing,
or within thirty days thereafter engages an underwriter, and commences in good
faith to prepare, a Registration Statement for a public offering (other than a
registration relating solely to employee benefit plans) which is in fact filed
and becomes effective within 90 days after the date the Demanding Holders
provided the written registration request, or is engaged in any material
acquisition or divestiture or other business transaction with a third party
which the Board of Directors of the Company reasonably determines in good faith
would be adversely affected by the Demand Registration to the material detriment
of the Company. The Company shall not exercise the delay right provided in the
immediately preceding sentence more than twice in any 12-month period. The
Company shall select the underwriters for a Demand Registration that is to be an
underwritten offering, and the managing underwriter shall be one or more
reputable nationally recognized investment banks reasonably acceptable to the
Demanding Holders. Each Holder of Included Securities shall be permitted to
withdraw all or any part of the Included Securities of such holder from any
Demand Registration at any time prior to the effective date of such Demand
Registration; provided, that such Demand Registration shall count as a Demand
Registration unless the Holders of the Included Securities pay all expenses
referred to in Section 9(a) in connection with the withdrawn registration;
provided, further, that if at the time of such withdrawal, the Holders of the
Included Securities have learned of a material adverse change in the conditions,
business or prospects of the Company from that known to the Holders at the time
of their request and have withdrawn the request with reasonable promptness
following disclosure by the Company of such material adverse change, then the
Holders shall not be required to pay any of such expenses and shall retain their
rights pursuant to this Section 2(a).

          (b) Limitations. Notwithstanding Section 2(a), the Company shall be
required to effect no more than two Demand Registrations; provided, that the
Holders shall be entitled to additional Demand Registrations if such additional
Demand Registrations would be eligible for registration on Form S-3 after the
Company qualifies for Form S-3 (any Demand Registration eligible for
registration on Form S-3 shall not be counted toward the two Demand Registration
limit set forth in this sentence); and provided, further, that the Company shall
not be required to effect more than one such Demand Registrations on Form S-3 in
any twelve month period and that the Company shall not be required to effect any
such Demand Registration on Form S-3 if any such Demand Registration on Form S-3
shall result in an offering price to the public of less than $20 million.
Notwithstanding the foregoing, a Demand Registration shall not be counted toward
the two Demand Registration limit set forth in the first sentence of this
Section 2(b) if, as a result of an exercise of the underwriter's cut-back
provisions, less than 50% of the total number of Included Securities that the
Series A Holders and Series B Holders have collectively requested to be included
in a Demand Registration are so included. Notwithstanding the foregoing,
Sagamore Hill Hub Fund Ltd. and its affiliates (collectively, "Sagamore") and
the PCG Entities

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shall have an independent right to additional Demand Registrations that would be
eligible for registration on Form S-3 after the Company qualifies for Form S-3;
provided, that the Company shall not be required to effect more than one such
Demand Registration requested by Sagamore or the PCG Entities, as the case may
be, on Form S-3 in any twelve month period and that Sagamore or the PCG
Entities, as the case may be, will pay the expenses of such registration if such
registration shall result in an aggregate offering price to the public of less
than $1 million. Any registration requested by Sagamore or the PCG Entities
pursuant to the immediately preceding sentence shall not have the effect of
limiting the number of or timing of any Demand Registration requested pursuant
to the first sentence of this Section 2(b).

          (c) Additional Requirements. Any registration initiated pursuant to
Section 2(a) shall not count as a Demand Registration (i) unless and until a
registration statement with respect to all Registrable Securities to be sold in
connection therewith shall have become effective and remained effective for a
period of 180 days, or, if a shorter time until all of the Included Securities
not withdrawn by the Holders from the registration shall have been sold (unless
all Included Securities are withdrawn by the Holders thereof prior to the
effectiveness and the Company has performed its obligations under this Agreement
in all material respects, in which case such registration will count as a Demand
Registration unless the Holders of the Included Securities pay all expenses
referred to in Section 9(a) in connection with the withdrawn registration,
subject to the last clause of Section 2(a)), (ii) if after it has become
effective such registration is interfered with by any stop order, injunction or
other order or requirement of the SEC or any other Governmental Authority for
any reason not attributable to the holders of Included Securities, such that no
sales are possible thereunder for a period of ten consecutive days or more, or
(iii) if the conditions to closing specified in the underwriting agreement, if
any, entered into in connection with such registration are not satisfied or
waived, other than by reason of a failure on the part of the holders of Included
Securities.

          (d) Cutbacks. If the managing underwriters of any Demand Registration
advise the Company in writing that in their good faith judgment the number of
securities to be included in the Demand Registration exceeds the number that can
be sold in the offering in light of marketing factors or because the sale of a
greater number would adversely affect the price of the Registrable Securities to
be sold in such Demand Registration, then the total number of securities the
underwriters advise can be included in such Demand Registration shall be
allocated (i) first, to each Holder of Included Securities who is a Series B
Holder in proportion to such holder's ownership of the total number of Included
Securities held by Series B Holders (in their capacity as Series B Holders);
(ii) second, to each Holder of Included Securities who is a Series A Holder in
proportion to such holder's ownership of the total number of Included Securities
held by Series A Holders (in their capacity as Series A Holders); (iii) third to
each Holder of Included Securities who is a Common Stock Holder in proportion to
such holder's ownership of the total number of Included Securities held by
Common Stock Holders (in their capacity as Common Stock Holders); and (iv)
fourth, among any securities of the Company the Company proposes to issue and
sell for its own account or register for sale by any Person (other than a holder
of Included Securities) in such Demand Registration in accordance with any
contractual provisions binding on the Company and/or the holders of such
securities or, if no contractual provisions apply, as the Company may determine.

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          (e) Termination. This Section 2 shall terminate with respect to the
Stock or other securities that have been sold in a Public Sale

          SECTION 3. Piggyback Registrations. (a) Exercise of Rights. At any
time should the Company propose to register any of its securities under the
Securities Act for sale for its own account (other than in connection with a
Demand Registration, or the registration of securities issuable pursuant to an
employee stock option, stock purchase or similar plan), the Company shall give
the Holders notice of such proposed registration (a "Piggyback Registration") at
least 30 days prior to the filing of a registration statement in connection
therewith. At the written request of any Holder delivered to the Company within
15 days after the receipt of the notice from the Company, which request shall
state the number of Registrable Securities that such Holder wishes to sell or
distribute publicly in the Piggyback Registration, the Company shall effect the
registration under the Securities Act of the Registrable Securities requested to
be included in the Piggyback Registration (the "Piggyback Securities") as
expeditiously as possible and use its best efforts to have such registration
become and remain effective as provided in Section 4 hereof. Each Holder of
Piggyback Securities shall be permitted to withdraw all or any part of the
Piggyback Securities of such holder from any Piggyback Registration at any time
prior to the effective date of such Piggyback Registration; provided, in the
case of an underwritten offering, that such holder is permitted to do so by the
managing underwriters or pursuant to any agreement with such managing
underwriters.

          (b) Additional Requirements. No Holder shall be entitled to include
any securities in any underwritten Piggyback Registration unless such Holder
shall have agreed in writing to sell such securities on the same terms and
conditions as shall apply to the securities (other than Piggyback Securities) to
be included in such Piggyback Registration. If a Piggyback Registration is to
cover, in whole or in part, any underwritten distribution, then the Company
shall use its best efforts to cause all Piggyback Securities to be included in
the underwriting on the same terms and conditions as the securities (other than
Piggyback Securities) being sold through the underwriters.

          (c) Cutbacks. If the managing underwriters of any Piggyback
Registration advise the Company in writing that in their good faith judgment the
number of securities to be included in the Piggyback Registration exceeds the
number that can be sold in the offering in light of marketing factors or because
the sale of a greater number would adversely affect the price of the Registrable
Securities to be sold in such Piggyback Registration, then the total number of
securities the underwriters advise can be included in such Piggyback
Registration shall be allocated (i) first, to the securities of the Company the
Company proposes to issue and sell for its own account; (ii) second, to each
holder of Piggyback Securities who is a Series B Holder in proportion to such
Holder's ownership of the total number of Piggyback Securities held by Series B
Holders (in their capacity as Series B Holders) ; (iii) third to each holder of
Piggyback Securities who is a Series A Holder in proportion to such Holder's
ownership of the total number of Piggyback Securities held by Series A Holders
(in their capacity as Series A Holders); (iv) fourth to each holder of Piggyback
Securities who is a Common Stock Holder in proportion to such holder's ownership
of the total number of Piggyback Securities held by Common Stock Holders (in
their capacity as Common Stock Holders); and (v) fifth, among any securities of
the Company the Company proposes to register for sale by any Person (other than
a holder of

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Piggyback Securities) in such Piggyback Registration in accordance with any
contractual provisions binding on the Company and/or the holders of such
securities or, if no contractual provisions apply, as the Company may determine.
Notwithstanding the foregoing, unless such Piggyback Registration is the initial
public offering of the Company's Common Stock, the number of Piggyback
Securities permitted to be included in such Piggyback Registration shall be at
least 50% of the number of shares of Common Stock included in such registration.

          SECTION 4. Registration Covenants of the Company. If any Registrable
Securities of any Holder are to be registered pursuant to Section 2 or Section
3, the Company covenants and agrees that it shall use its best efforts to effect
the registration and cooperate in the sale of the Registrable Securities to be
registered and shall as expeditiously as possible:

          (a) (i) prepare and file with the SEC a registration statement with
respect to the Registrable Securities (including all amendments and supplements
thereto, a "Registration Statement") and (ii) use its best efforts to cause the
Registration Statement to become effective;

          (b) prior to the filing described above in paragraph (a), furnish to
each Holder participating in such offering copies of the Registration Statement
and any amendments or supplements thereto and any prospectus forming a part
thereof, which documents shall be subject to the review of counsel representing
the Holders;

          (c) notify each such Holder, promptly after receiving notice thereof,
of the time when the Registration Statement becomes effective or when any
amendment or supplement or any prospectus forming a part of the Registration
Statement has been filed;

          (d) notify each Holder participating in such offering promptly of any
request by the SEC for the amending or supplementing of the Registration
Statement or prospectus or for additional information;

          (e) (i) advise each Holder participating in such offering after the
Company shall receive notice or otherwise obtain knowledge of the issuance of
any order by the SEC suspending the effectiveness of the Registration Statement
or any amendment thereto or of the initiation or threatening of any proceeding
for that purpose and (ii) promptly use its reasonable best efforts to prevent
the issuance of any stop order or to obtain its withdrawal promptly if a stop
order should be issued;

          (f) (i) prepare and file with the SEC such amendments and supplements
to the Registration Statement and the prospectus forming a part thereof as may
be necessary to keep the Registration Statement effective for a period of time
necessary to permit each Holder participating in such offering to dispose of all
its Registrable Securities and (ii) comply with the provisions of the Securities
Act with respect to the disposition of all Registrable Securities covered by the
Registration Statement during such period in accordance with the intended
methods of disposition by each such Holder set forth in the Registration
Statement;

          (g) furnish to each Holder participating in such offering such number
of copies of the Registration Statement, each amendment and supplement thereto,
the prospectus included in the Registration Statement (including such
preliminary prospectus) and such other documents

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such Holder may reasonably request in order to facilitate the disposition of the
Registrable Securities owned by such Holder;

          (h) use its best efforts to register or qualify such Registrable
Securities under such other securities or blue sky laws of such jurisdictions as
determined by the underwriters after consultation with the Company and the
Holders participating in the offering and do any and all other acts and things
which may be reasonably necessary or advisable to enable each Holder to
consummate the disposition in such jurisdictions of the Registrable Securities
(provided, that the Company shall not be required to (i) qualify generally to do
business in any jurisdiction in which it would not otherwise be required to
qualify but for this paragraph (h), (ii) subject itself to taxation in any such
jurisdiction or (iii) consent to general service of process in any such
jurisdiction);

          (i) notify each Holder of any Registrable Securities covered by such
Registration Statement, at any time when a prospectus relating thereto is
required to be delivered under the Securities Act, promptly upon the Company's
becoming aware that the prospectus included in such Registration Statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing, and within 10 days of such notice, file a supplement to such
prospectus with the SEC (unless the Company is exercising the Black Out Right as
set forth below, in which case such filing shall take place within 50 days of
such notice);

          (j) If the Board of Directors of the Company in its reasonable
judgment believes it may possess material non-public information the disclosure
of which in its reasonable judgment would have a material adverse effect on the
Company and its subsidiaries taken as a whole, then no later than 50 days after
first receipt of a Holder's request (a "Black Out Right"), the Company shall
prepare and furnish to such Holders a reasonable number of copies of an amended
or supplemental prospectus as may be necessary so that, as thereafter delivered
to the sellers of such Registrable Securities, such prospectus shall not include
an untrue statement of a material fact or omit to state a material fact required
to be stated therein or necessary to make the statements therein not misleading
in the light of the circumstances then existing; provided, however, that the
Company, during any 12-month period, may not impose more than two Black Out
Rights and the period of such Black Out Rights shall not exceed 50 days in the
aggregate;

          (k) if the Registrable Securities are not then listed on a securities
exchange and if the NASD is reasonably likely to permit the reporting of the
Registrable Securities on the Nasdaq National Market (the "NNM"), use its best
efforts, consistent with the then current corporate structure of the Company, to
facilitate the reporting of transactions in the Registrable Securities on the
NNM;

          (l) provide a transfer agent and registrar, which may be a single
entity, for all the Registrable Securities and a CUSIP number for all such
Registrable Securities, in each case not later than the effective date of the
Registration Statement;

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          (m) enter into such customary agreements (including an underwriting
agreement in customary form) and take all such other action, if any, as the
Holders participating in such offering or the underwriters shall reasonably
request in order to expedite or facilitate the disposition of the Registrable
Securities pursuant to this Agreement;

          (n) (i) make available for inspection by the Holders participating in
such offering, any underwriter participating in any distribution pursuant to the
Registration Statement and any attorney, accountant or other agent retained by
such Holders or any such underwriter all relevant financial and other records,
pertinent corporate documents and properties of the Company and (ii) cause the
Company's officers, directors and employees to supply all relevant information
reasonably requested by such Holders or any such underwriter, attorney,
accountant or agent in connection with the Registration Statement;

          (o) furnish to each Holder participating in the offering a signed
counterpart, addressed to the Holders (or to the underwriters, in the case of
any underwritten offering), of (i) an opinion of counsel for the Company, dated
the effective date of the registration statement, and (ii) a "comfort" letter
signed by the independent public accountants who have certified the Company's
financial statements included in the Registration Statement, covering
substantially the same matters with respect to the Registration Statement (and
the prospectus included therein) and (in the case of the "comfort" letter), as
are customarily covered (at the time of such registration) in opinions of
issuer's counsel and in "comfort" letters, respectively, delivered to the
underwriters in underwritten public offerings of securities;

          (p) cause senior representatives of the Company to participate in any
"road show" or "road shows" reasonably requested by any underwriter of an
underwritten or "best efforts" offering of any Registrable Securities;

          (q) notify each Holder of any Registrable Securities covered by such
Registration Statement, at any time when a prospectus relating thereto is
required to be delivered under the Securities Act, promptly upon the Company's
becoming aware that the prospectus included in such Registration Statement, as
then in effect, includes an untrue statement of a material fact or omits to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading in the light of the circumstances then
existing, and at the request of any such Holder, prepare and furnish to such
Holder a reasonable number of copies of an amended or supplemental prospectus as
may be necessary so that, as thereafter delivered to the sellers of such
Registrable Securities, such prospectus shall not include an untrue statement of
a material fact or omit to state a material fact required to be stated therein
or necessary to make the statements therein not misleading in the light of the
circumstances then existing; and

          (r) use its best efforts to comply with all applicable rules and
regulations of the SEC.

          SECTION 5. Cooperation by the Holders. (a) Lock-Up Agreements. Each
Holder, if and for the period of time the managing underwriters so request in
connection with any underwritten registration of Registrable Securities, will
not, to the extent requested by such underwriters during the time period
specified, effect any Public Sale or other distribution of any

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equity securities of the Company without the prior written consent of such
underwriters; provided, however, that (i) such market stand-off time period
shall not extend beyond 180 days following the date of the final prospectus and
30 days prior to the date of the final prospectus, (ii) any such market
stand-off or lock-up agreements contains reasonable and customary exceptions,
(iii) each officer and director of the Company and each holder of at least 1% of
the outstanding Common Stock (on a fully-diluted basis) shall enter into similar
lock-up agreements or otherwise be bound by similar provisions, (iv) such
restrictions shall not apply to equity securities purchased in the initial
public offering of the Company's Common Stock or in the open market following
such offering, and (v) any Holder may transfer any such shares to any of its
Affiliates, provided such Affiliates agree to comparable restrictions on
transfer of such shares. As a condition to the obligation of the Holders under
this Section 5(a), the Company agrees to use reasonable best efforts to cause
the "stand off" obligation of the Holders under this Section 5(a), and any
agreement entered into by the Holders as a result of their obligations under
this Section 5(a), to allow for periodic early releases of portions of the
securities subject to such Holders' "stand off" obligations, which may be
conditioned upon the trading price of the Common Stock and shall in any event be
subject to approval of the managing underwriters; provided however, that such
Holders individually own less than 0.50% of the Common Stock Equivalents (and
not to exceed 5.0% of the Common Stock Equivalents in the aggregate) and that
such Holders are not executive officers of the Company (unless, in each case,
the Majority of the Series B Preferred Stock agree otherwise).

          (b) Cooperation. Each prospective seller of Registrable Securities
will furnish to the Company in writing such information as the Company may
reasonably require and which is customary in such transactions from such seller,
and otherwise reasonably cooperate with the Company in connection with any
registration statement with respect to such Registrable Securities. The failure
of any prospective seller of Registrable Securities to furnish any information
or documents in accordance with any provision contained in this Agreement shall
not affect the obligations of the Company under this Agreement to any remaining
sellers who furnish such information and documents unless in the reasonable
opinion of counsel to the Company or the underwriters such failure impairs or
may impair the viability of the offering or the legality of the registration
statement or the underlying offering.

          (c) Suspension by Company. Holders of Registrable Securities included
in any registration statement will not (until further notice) effect sales of
Registrable Securities included in any registration statement after receipt of
written notice from the Company to suspend sales to permit the Company to
correct or update such registration statement or prospectus (which obligation to
correct or update the Company will satisfy promptly); but the obligations of the
Company with respect to maintaining any registration statement current and
effective shall be extended by a period of days equal to the period such
suspension is in effect.

          SECTION 6. Additional Covenants of the Company. (a) Rule 144
Information. After the Company becomes subject to the reporting requirements of
Section 13 or 15(d) of the Exchange Act, but only for so long as the Company is
so subject, the Company shall take all actions necessary to enable the Holders
to sell the Registrable Securities without registration under the Securities Act
within the limitations of the exemption provided by Rule 144 under the
Securities Act, as such Rule may be amended from time to time, or any similar
rule or regulation

                                       11

<PAGE>

hereafter adopted by the SEC, including filing on a timely basis all reports
required to be filed by the Exchange Act. Upon the request of any Holder, the
Company shall deliver to such Holder a written statement as to whether it has
complied with such requirements.

          (b) Restrictions on Public Sale by the Company. The Company agrees,
unless it obtains the consent of the managing underwriter(s) of any offering of
Registrable Securities pursuant to this Agreement, not to effect any Public Sale
or distribution of its equity securities, or any securities convertible into or
exchangeable or exercisable for such equity securities, during the period
commencing on the 30th day prior to, and ending on the 180th day following, the
effective date of any underwritten Demand Registration or Piggyback
Registration, except in connection with any such underwritten registration, or
pursuant to any registration statements on Form S-8 or the then equivalent form.

          (c) Limitations on Subsequent Registration Rights. The Company shall
not, without the prior written consent of the Majority Of Series B Preferred
Stock, enter into any agreement (other than this Agreement) with any holder or
prospective holder of any securities of the Company which grants such holder or
prospective holder rights to include securities of the Company in any
registration statement, unless (i) such right to include securities in a
registration initiated by the Company or by Demanding Holders are not more
favorable than the rights granted to Common Stock Holders under Section 2 and 3
hereof, and (ii) no rights are granted to initiate a registration, other than a
registration pursuant to a registration statement on Form S-3 in which Holders
are entitled to include Registrable Securities on a pro rata basis with such
holders based on the number of shares of Common Stock (on an as-converted basis)
owned by such holders.

          SECTION 7. Preemptive Rights. (a) The Company hereby grants to each
Holder the right to purchase its Pro Rata Share of New Securities which the
Company may, from time to time, propose to sell and issue. A Holder's Pro Rata
Share, for purposes of this purchase right, shall mean the total number of New
Securities to be issued times a fraction the numerator of which is the number of
Common Stock Equivalents owned by such Holder immediately prior to the issuance
of New Securities and the denominator of which is the total number Common Stock
Equivalents outstanding immediately prior to the issuance of New Securities. The
rights preemptive rights granted to each Holder pursuant to this Section 7 shall
terminate upon the consummation of a public offering of the Company's Common
Stock registered under th Securities Act.

          (b) In the event the Company proposes to undertake an issuance of New
Securities, it shall give each Holder written notice of its intention (each a
"Notice of Sale"), describing the type of New Securities, the maximum number of
New Securities to be issued, and the price and the general terms upon which the
Company proposes to issue the same. Each Holder shall have twenty (20) days
after such Notice of Sale is mailed or delivered to agree to purchase such
Holder's pro rata share of such New Securities for the price and upon the terms
specified in the notice by giving written notice to the Company and stating
therein the quantity of New Securities to be purchased.

                                       12

<PAGE>

          (c) The preemptive rights set forth in this Section 7 may be waived,
before or after a Notice of Sale is delivered, (i) (A) as to the Common Stock,
by vote or written consent of holders of a majority of the Common Stock having
preemptive rights under this Agreement, voting as a separate class, (B) as to
the Series B Stock, by vote or written consent of holders of at least two-thirds
of the Series B Preferred Stock having preemptive rights under this Agreement,
voting as a separate class; and (C) as to the Series A Stock, by vote or written
consent of the holders of a majority of the Series A Stock having preemptive
rights under this Agreement, voting as a separate class, or (ii) by affirmative
vote of the board of directors of the Company in which a majority of the
directors designated by each of the holders of Common Stock and Series A Stock,
and all of the directors designated by the Series B Stockholders, agree.

          (d) Notwithstanding the foregoing, the provisions of this Section 7
shall only be exercisable by Holders who are accredited investors (as such term
is defined under the Securities Act).

          (e) In the event the Holders fail to exercise fully the purchase right
within such twenty (20)-day period, the Company shall have one hundred twenty
(120) days thereafter to sell or enter into an agreement (pursuant to which the
sale of New Securities covered thereby shall be closed, if at all, within one
hundred twenty (120) days from the date of such agreement) to sell the New
Securities respecting which the Holders' purchase right set forth in this
Section 7 was not exercised, at a price and upon terms no more favorable to the
purchasers thereof than specified in the Notice of Sale. In the event the
Company has not sold within such 120-day period or entered into an agreement to
sell the New Securities in accordance with the foregoing within one hundred
twenty (120) days from the date of such agreement, the Company shall not
thereafter issue or sell any New Securities, without first again offering such
securities to the qualifying Holders in the manner provided in this Section 7.

          (f) The issuance of the New Securities to the Holders pursuant to this
Section 7 above shall be made at the registered office of the Company upon the
latter of (i) the closing of the sale any New Securities to new investors in the
Company pursuant to Section 7(e) hereof or (ii) a mutually satisfactory date not
later than thirty (30) days after the expiration of the applicable acceptance
period provided for in Section 7(b) hereof. Delivery of a certificate for the
New Securities shall be made against payment of the subscription price therefor.

          SECTION 8. Indemnification. (a) Indemnification by the Company. To the
fullest extent permitted by law, in the event of any registration of any
Registrable Securities pursuant to the provisions of this Agreement, the Company
shall indemnify, defend and hold harmless each selling Holder, each other Person
who participates as an underwriter in the offering or sale of such Registrable
Securities, each other Person, if any, who controls such Holder or any such
underwriter within meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act and their respective directors, officers, agents, partners,
employees, stockholders, members and representatives (collectively,
"Indemnitees") from and against any losses, claims, damages or liabilities,
joint or several, to which such Indemnitee may become subject under the
Securities Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions or proceedings, whether commenced or threatened, in
respect thereof) arise out of or are based upon (i) any untrue statement or
alleged untrue statement of any material fact

                                       13

<PAGE>

contained in any registration statement under which the Registrable Securities
were registered under the Securities Act, any preliminary prospectus, final
prospectus or summary prospectus contained therein, or any amendment or
supplement thereto, or (ii) any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein in light of the circumstances in which they were made not misleading,
and the Company shall reimburse each such Indemnitee for any legal or any other
expenses reasonably incurred by it in connection with investigating or defending
any such loss, claim, liability, action or proceeding; provided, that the
Company shall not be liable in any such case to any Indemnitee to the extent
that any such loss, claim, damage, liability (or action or proceeding in respect
thereof) or expense arises out of or is based upon an untrue statement or
alleged untrue statement or omission or alleged omission made in such
registration statement, preliminary prospectus, final prospectus, summary
prospectus, amendment or supplement in reliance upon and in conformity with
written information about such Indemnitee furnished to the Company in a writing
duly provided by or on behalf of such Indemnitee specifically stating that it is
for use in the preparation thereof; and provided further, that the Company shall
not be liable to any Person who participates as an underwriter in the offering
or sale of Registrable Securities or any other Person, if any, who controls such
underwriter within the meaning of the Securities Act, in any such case to the
extent that any such loss, claim, damage, liability (or action or proceeding in
respect thereon) or expense arises out of such Person's failure to send or give
a copy of the final prospectus, as the same may be then supplemented or amended,
to the Person asserting a claim based upon an untrue statement or alleged untrue
statement or omission or alleged omission at or prior to the written
confirmation of the sale of Registrable Securities to such Person if such
statement or, omission was corrected in such final prospectus. Such indemnity
shall remain in full force and effect regardless of any investigation made by or
on behalf of any Indemnitee and shall survive the transfer of the Registrable
Securities of each Indemnitee.

          (b) Indemnification by Holders. The Company may require, as a
condition to including any Registrable Securities in any registration statement
filed pursuant to this Agreement, that the Company shall have received an
undertaking reasonably satisfactory to it from each Holder offering Registrable
Securities under such registration statement, severally and not jointly, to
indemnify and hold harmless (in the same manner and to the same extent as set
forth in Section 8(a)) the Company, each director of the Company, each officer
of the Company signing such registration statement and each other Person, if
any, who controls the Company within the meaning of Section 15 of the Securities
Act with respect to (i) any untrue statement or alleged untrue statement in or
(ii) omission or alleged omission from such registration statement, any
preliminary prospectus, final prospectus or summary prospectus contained therein
or any amendment or supplement thereto, if such untrue statement or alleged
untrue statement or omission or alleged omission was made in reliance upon and
in conformity with written information about such Holder as a stockholder of the
Company furnished to the Company in a writing duly executed by such Holder
specifically stating that it is for use in the preparation of such registration
statement, preliminary prospectus, final prospectus, summary prospectus,
amendment or supplement. Such indemnity shall remain in full force and effect,
regardless of any investigation made by or on behalf of the Company or any such
director, officer or controlling Person and shall survive the transfer by the
seller of the securities of the Company being registered. Notwithstanding the
foregoing, each Holder's liability under this Section 8(b)

                                       14

<PAGE>

with respect to any particular registration shall be limited to an amount equal
to the net proceeds received by such Holder from the Registrable Securities sold
by such Holder in such registration.

          (c) Contribution. If the indemnification provided for in Section 8(a)
or Section 8(b) above is unavailable to an indemnified party in respect of any
losses, claims, damages or liabilities referred to therein, then the
indemnifying party, in lieu of indemnifying such indemnified party thereunder,
shall contribute to the amount paid or payable by such indemnified party as a
result of such losses, claims, damages or liabilities, in such proportion as is
appropriate to reflect the relative fault of the indemnifying party on the one
hand and of the indemnified parties on the other in connection with the
statements or omissions or violations which resulted in such losses, claims,
damages or liabilities, as well as any other relevant equitable considerations.
The relative fault of the indemnifying party and of the indemnified parties
shall be determined by reference to, among other things, whether the untrue or
alleged untrue statement of a material fact or the omission to state a material
fact relates to information supplied by the indemnifying party or by the
indemnified parties, and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.

          The Company and the Holders agree that it would not be just and
equitable if contribution pursuant to this Section 8(c) were determined by pro
rata allocation or by any other method of allocation which does not take into
account the equitable considerations referred to in the immediately preceding
paragraph. The amount paid or payable by an indemnified party as a result of the
losses, claims, damages and liabilities or actions in respect thereof referred
to in the immediately preceding paragraph shall be deemed to include, subject to
the limitations set forth above, any legal or other expenses reasonably incurred
by such indemnified party in connection with investigating or defending any such
action or claim. No person guilty of fraudulent misrepresentations (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation. The obligation of any Holder obliged to make contribution
pursuant to this Section 8(c) shall be several and not joint, and no such Holder
shall be obliged to make contribution in excess of an amount equal to the net
proceeds received by such Holder from the Registrable Securities sold by such
Holder in such registration.

          (d) Indemnification Procedures. Promptly after receipt by an
indemnified party of notice of the commencement of any action or proceeding
involving a claim referred to in Section 8(a) or 8(b), such indemnified party
will, if a claim in respect thereof is to be made against an indemnifying party,
give notice to the latter of the commencement of such action; provided, that the
failure of any indemnified party to give notice as provided herein shall not
relieve the indemnifying party of its obligations under Section 8(a) or 8(b),
except to the extent that the indemnifying party is actually and materially
prejudiced by such failure to give notice. In case any such action is brought
against any indemnified party, unless in the opinion of such indemnified party's
counsel a conflict of interest between such indemnified and indemnifying parties
or other indemnified party may exist or the indemnified party may have defenses
not available to the indemnifying party or any other indemnified party in
respect of such claim, the indemnifying party shall be entitled to participate
in and to assume the defense thereof, with counsel reasonably satisfactory to
such indemnified party, and after notice from the

                                       15

<PAGE>

indemnifying party to such indemnified party of its election so to assume the
defense thereof, the indemnifying party shall not be liable to such indemnified
party for any legal or other expenses subsequently incurred by the indemnified
party in connection with the defense thereof other than reasonable costs of
investigation. No indemnifying party shall be liable for any settlement of any
action or proceeding affected without its written consent. No indemnifying party
shall, without the consent of the indemnified party, consent to entry of any
judgment or enter into any settlement which does not include as an unconditional
term thereof the giving by the claimant or plaintiff to such indemnified party
of a release from all liability in respect to such claim or litigation or which
involves relief other than the payment of money damages.

          (e) Payments. The indemnification required by this Section 8 shall be
made by periodic payments of the amount thereof during the course of
investigation or defense, as and when bills are received or expense, loss,
damage or liability is incurred.

          SECTION 9. Miscellaneous. (a) Expenses. Subject to the last sentence
of Section 2(a), the Company shall pay all expenses of the Holders in connection
with any Demand Registration or Piggyback Registration, including without
limitation all registration, filing and NASD fees, all fees and expenses of
complying with securities or blue sky laws, all word processing, duplicating and
printing expenses, all messenger and delivery expenses, all fees and
disbursements of one counsel for the Holders and the Company and of its
independent public accountants (including the expenses of comfort letters
required by or incident to such performance and compliance) and any fees and
disbursements of underwriters customarily paid by issuers or sellers of
securities, but excluding any underwriting discounts and commissions, if any,
relating to the Registrable Securities being sold by a Holder, which shall be
paid by such Holder.

          (b) Effective Date. This Agreement shall only come into effect upon
the Intial Closing (as defined in the Purchase Agreement).

          (c) Specific Performance. The parties acknowledge that the Holders'
damages at law would be an inadequate remedy for the breach or non-performance
of any provision of this Agreement by the Company, and agree in the event of
such breach that the aggrieved party may obtain temporary and permanent
injunctive relief restraining the Company from such breach or compelling
specific performance of such provision, and, to the extent permissible under
applicable statutes and rules of procedure, a temporary injunction may be
granted immediately upon the commencement of any such suit without proof of
actual harm. Nothing contained in this Agreement shall be construed as
prohibiting any party from pursuing other remedies available at law or equity
for such breach or non-performance.

          (d) Notices. Notices and other communications provided for herein
shall be in writing and shall be delivered by hand or overnight courier service
or sent by facsimile as follows:

               if to the Holders:

               To the address set forth on the relevant counterpart signature
page hereto

                                       16

<PAGE>

               if to the Company:

               ORBCOMM Inc.
               2115 Linwood Avenue, Suite 100
               Fort Lee, NJ 07924
               Attention: Chief Executive Officer and General Counsel
               Facsimile: 703-433-6400

               with a copy to:

               Chadbourne & Parke LLP
               30 Rockefeller Plaza
               New York, NY  10112
               Attention: Alejandro R. San Miguel
               Facsimile: (212) 541-5369

or to such other address as any party hereto shall have communicated to the
other parties hereto by notice in accordance with this provision. All notices
and other communications given to any party in accordance with the provisions of
this Agreement shall be deemed to have been given on the date of receipt if
delivered by hand or overnight courier service or sent by facsimile in each case
delivered or sent (properly addressed) to such party as provided in this Section
9(c) or in accordance with the latest unrevised direction from such party given
in accordance with this Section 9(c).

          (e) Assignment. This Agreement and the rights, interests and
obligations hereunder shall not be assignable or transferable except in
connection with a transfer of a corresponding interest in the Stock or as
otherwise agreed to in writing between the parties.

          (f) No Third-Party Beneficiaries. This Agreement is for the sole
benefit of the parties hereto and their respective successors and permitted
assigns and nothing herein expressed or implied shall give or be construed to
give to any Person, other than the parties hereto and such successors and
assigns, any legal or equitable rights hereunder, except to the extent otherwise
provided in Article 7.

          (g) Waivers and Amendments. No failure or delay of the Holders or the
Company in exercising any power or right hereunder shall operate as a waiver
thereof, nor shall any single or partial exercise of any such right or power, or
any abandonment or discontinuance of steps to enforce such a right or power,
preclude any other or further exercise thereof or the exercise of any other
right or power. The rights and remedies of the Holders and the Company hereunder
are cumulative and are not exclusive of any rights or remedies which the Holders
or the Company would otherwise have. No waiver of any provision of this
Agreement or consent to any departure by the Company therefrom shall in any
event be effective unless the same shall be effected in accordance with this
Section 9(g), and then such waiver or consent shall be effective only in the
specific instance and for the purpose for which given. No notice or demand on
the Company in any case shall entitle the Company to any other or further notice
or demand in similar or other circumstances. Neither this Agreement nor any
provision hereof may be waived,

                                       17

<PAGE>

amended or modified except pursuant to an agreement or agreements in writing
entered into by the Company and the holders of a majority of the Series A Stock
held by the Series A Holders, the Majority Of Series B Preferred Stock and the
holders of a majority of the Common Stock held by the Common Stock Holders;
provided that the demand rightS granted to Sagamore and PCG under Section 2(b)
hereof may not be amended or waived without the prior written consent of
Sagamore or PCG, as appropriate; and provided further, that the thresholds
required to waive the preemptive rights set forth in Section 7 may only be
amended with the consent of the holders necessary to waive preemptive rights
pursuant to Section 7(c).

          (h) Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof; provided that the
Company and SES are parties to a letter agreement that grants certain additional
preemptive rights to SES. Any previous agreement among the parties with respect
to the subject matter hereof is superseded by this Agreement.

          (i) WAIVER OF JURY TRIAL. EACH PARTY HERETO HEREBY WAIVES, TO THE
FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY
JURY IN RESPECT OF ANY SUIT, ACTION OR PROCEEDING DIRECTLY OR INDIRECTLY ARISING
OUT OF, UNDER OR IN CONNECTION WITH THIS AGREEMENT.

          (j) Severability. In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstance, is held
invalid, illegal or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions hereof shall not be in any way impaired, unless the
provisions held invalid, illegal or unenforceable shall substantially impair the
benefits of the remaining provisions hereof.

          (k) Counterparts. This Agreement may be executed in one or more
counterparts, each of which shall constitute an original but all of which when
taken together shall constitute but one agreement, and shall become effective
when one or more such counterparts have been signed by each of the parties and
delivered to the other party.

          (l) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED
IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE APPLICABLE TO AGREEMENTS
MADE AND TO BE PERFORMED ENTIRELY WITHIN SUCH STATE, WITHOUT REGARD TO THE
CONFLICTS OF LAW PRINCIPLES OF SUCH STATE.

          (m) CONSENT TO JURISDICTION. THE COMPANY HEREBY IRREVOCABLY AND
UNCONDITIONALLY SUBMITS, FOR ITSELF AND ITS PROPERTY, TO THE EXCLUSIVE
JURISDICTION OF THE STATE COURTS OF NEW YORK STATE SITTING IN THE COUNTY OF NEW
YORK OR ANY FEDERAL COURT OF THE UNITED STATES OF AMERICA SITTING IN THE
SOUTHERN DISTRICT OF NEW YORK IN CONNECTION WITH ANY SUIT, ACTION OR PROCEEDING
DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN

                                       18

<PAGE>

CONNECTION WITH THIS AGREEMENT. THE COMPANY MAY NOT MOVE TO (I) TRANSFER ANY
SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH COURT TO ANOTHER COURT, (II)
CONSOLIDATE ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH COURT WITH A
SUIT, ACTION OR PROCEEDING IN ANOTHER JURISDICTION OR (III) DISMISS ANY SUCH
SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH COURT FOR THE PURPOSE OF BRINGING THE
SAME IN ANOTHER JURISDICTION. THE COMPANY AGREES THAT A FINAL JUDGMENT IN ANY
SUCH SUIT, ACTION OR PROCEEDING SHALL BE CONCLUSIVE AND MAY BE ENFORCED IN ANY
OTHER JURISDICTION BY SUIT ON THE JUDGMENT OR IN ANY OTHER MANNER PROVIDED BY
LAW. THE COMPANY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES, TO THE FULLEST
EXTENT IT MAY LEGALLY AND EFFECTIVELY DO SO, ANY OBJECTION WHICH IT MAY NOW OR
HEREAFTER HAVE TO THE LAYING OF VENUE OF ANY SUIT, ACTION OR PROCEEDING ARISING
OUT OF OR RELATING TO THIS AGREEMENT IN ANY NEW YORK COURT SITTING IN THE COUNTY
OF NEW YORK OR ANY FEDERAL COURT SITTING IN THE SOUTHERN DISTRICT OF NEW YORK.
THE COMPANY HEREBY CONSENTS TO THE SERVICE OF PROCESS IN ANY SUCH SUIT, ACTION
OR PROCEEDING BY NOTICE IN THE MANNER SPECIFIED IN SECTION 9(L).

                            [signature pages follow]

                                       19

<PAGE>

               IN WITNESS WHEREOF, the parties have duly executed this Second
Amended and Restated Registration Rights Agreement as of the day and year first
above written.

                                        ORBCOMM INC.

                                        By: /s/ Jerome B. Eisenberg
                                            ------------------------------------
                                        Name: Jerome B. Eisenberg
                                        Title: Chief Executive Officer

     (Signature page to the Second Amended and Restated Registration Rights
                                   Agreement)

               (Additional Counterpart Signature Pages to Follow)

                                       20

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             NORTHWOOD CAPITAL PARTNERS LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Henry T. Wilson
           -----------------------------
Name: Henry T. Wilson
Title: Managing Director

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             NORTHWOOD VENTURES LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Henry T. Wilson
           -----------------------------
Name: Henry T. Wilson
Title: Managing Director

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             SK PARTNERS
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Peter Schiff
           -----------------------------
Name:
Title: Gen Partner
       ---------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             Don Franco
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Don Franco
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             ORBCOMM Asset Holding Ltd
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Don Franco
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             Jerome B. Eisenberg
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Jerome B. Eisenberg
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             346 Hillcrest F & F Partners LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Jerome B. Eisenberg
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             Richard K. Webel Trust
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Peter G. Schiff
           -----------------------------
Name: P.G. Schiff
Title: Trustee
<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             Orbcomm Deutschland AG
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Marco Fuchs
           --------------------------
Name:
      -------------------------------
Title:
       ------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             OHB Technology AG
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Marco Fuchs
           --------------------------
Name:
      -------------------------------
Title:
       ------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             H. STEININGER
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ H. Steininger
           --------------------------
Name:
      -------------------------------
Title:
       ------------------------------

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             Ridgewood Satellite LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Leslie W. Golden
           --------------------------
Name: Leslie W. Golden
Title: Managing Director

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             MH INVESTORS ORBCOMM LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ Ronald Gerwig
           --------------------------
Name: RONALD GERWIG
Title: ASST TREASURER

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             PC SATELLITE INVESTMENTS, LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

BY: CALPERS/PCG CORPORATE PARTNERS LLC
    A DELAWARE LIMITED LIABILITY COMPANY

ITS: MANAGING MEMBER

BY: PCG CORPORATE PARTNERS INVESTMENTS LLC
ITS: MANAGER

BY: PACIFIC CORPORATE GROUP HOLDINGS, LLC
ITS: MANAGING MEMBER

Signed by: /s/ Tim Kelleher
           --------------------------
Name: TIM KELLEHER
Title: MANAGING DIRECTOR

<PAGE>

THIS IS A COUNTERPART SIGNATURE PAGE TO THE SECOND AMENDED AND RESTATED
REGISTRATION RIGHTS AGREEMENT, DATED AS OF DECEMBER 30, 2005, AMENDING THE
AMENDED AND RESTATED REGISTRATION RIGHTS AGREEMENT OF ORBCOMM INC., DATED AS OF
NOVEMBER 18, 2005, AS AMENDED, BETWEEN ORBCOMM INC. AND CERTAIN OF THE HOLDERS
OF ITS CAPITAL STOCK.

Name of Investor:             SES Participations.
                              (please print)

Notice Address of Investor:
   (please complete)

Facsimile:

Signed by: /s/ R. Bednarek
           --------------------------
Name:
      -------------------------------
Title:
       ------------------------------
<PAGE>

                                   SCHEDULE I

LIST OF SERIES B HOLDERS

                                    INVESTOR

                               OHB Technology A.G.
                             Ridgewood Satellite LLC
                             Northwood Ventures LLC
                         Northwood Capital Partners LLC
                                  Denis Nayden
                                 Hyung-Jin Song
                             Hoboken Partners 1 LLC
                                  Mark Sullivan
                           Estrin New Ventures II LLC
                             Nakoma Investments LLC
                                   Bert Cohen
                                  Bukfenc Inc.
                               Mary Higgins Clark
                              William Vanden Heuvel
                                Michael Friedman
                                Steven G. Chrust
                                Henning Melchers
                                  Albert Nickel
                               Hans E.W. Hoffmann
                                Edmund B. Greene
                                 Philip Lodewick
                                Elizabeth Steele
                                   SK Partners
                              E. Bulkeley Griswold
                                  William Jaffe
                              Andre-Michael Schultz
                                Steven Chrust IRA
                                Shippan Fund LLC
                                  Mike Sullivan
                                Christopher Lust
                                    Jerry Kay
                              Murray Slimowitz IRA
                     Liza Chrust, Chrust 2001 Business Trust
                     Eve Chrust, Chrust 2001 Business Trust
                             Richard K. Webel Trust
                                   Arthur Bahr
                            E. Bulkeley Griswold IRA
                                 Robert Loud IRA
                             Marble Arch Group Ltd.
                        346 Hillcrest F & F Partners LLC
                              Orbcomm Venture, LLC
                         John D. Curtis Revocable Trust

<PAGE>

                          Dwaine L. and Cynthia Willet
                       Investment Partners of Orlando LLP
                           MH Investors Satellite LLC
                         PCG Satellite Investments, LLC

                                       23

<PAGE>

LIST OF SERIES A HOLDERS

                                    INVESTOR

                                 Arthur S. Bahr
                                   Bukfenc Inc
                                 Steve G. Chrust
                               Mary Higgins Clark
                               Patrick A. Clifford
                                   Bert Cohen
                                  John Connelly
                            Crystal Lake Partners LP
                             RBC Dain Rauscher Cust.
                            E. Bulkeley Griswold IRA
                                 1101-7400-6804
                            E. Anderson Griswold IRA
                                 1101-7400-6796
                                Cynthia Eisenberg
                               Jerome B. Eisenberg
                                 Marc Eisenberg
                                 Emmett Hume IRA
                             Estrin New Ventures LLC
                     Eve Chrust, 2001 Chrust Business Trust
                                   Don Franco
                              John and Mary Franco
                                  Joel Friedman
                                Michael Friedman
                             Mark and Joan Goldstein
                                Marilyn H. Gordon
                   Ronald Gordon and Marilyn H. Gordon, JTWROS
                                Edmund B. Greene
                              E. Bulkeley Griswold
                                   James Higby
                             Hoboken Partners 1 LLC
                               Hans E. W. Hoffmann
                                  Cara L. Hume
                                  David D. Hume
                                   Emmett Hume
                                  William Jaffe
                                Douglas K. Jones
                                    Jerry Kay
                                  John Levinson
                     Liza Chrust, 2001 Chrust Business Trust
                                Paul Masters IRA
                                 Philip Lodewick
                                Christopher Lust
                                Henning Melchers

                                       24

<PAGE>

                          Miller & Wrubel Asset Company
                            Murray Slimowitz IRA R/O
                             Nakoma Investments, LLC
                                  Denis Nayden
                                Albert G. Nickel
                         Northwood Capital Partners LLC
                             Northwood Ventures LLC
                               Oakwood Capital LLC
                               OHB Technology A.G.
                                 A. Alex Porter
                             Richard K. Webel Trust
                             Ridgewood Satellite LLC
                               Jeffrey C. Riecker
                                 Robert Loud IRA
                           Sagamore Hill Hub Fund Ltd.
                              Andre-Michael Schultz
                                 Robert Schultz
                          SES Global Participations SA
                                Shippan Fund LLC
                                   SK Partners
                                 Hyung-Jin Song
                              Walter H. Sonnenfeldt
                                Elizabeth Steele
                                 Hans Steininger
                              Steven G. Chrust IRA
                               Daniel J. Sullivan
                                  Mark Sullivan
                                Michael Sullivan
                            William J. Vanden Heuvel
                                  Henry Wilson

LIST OF COMMON STOCK HOLDERS

                                    INVESTOR

Jerome B. Eisenberg
Don Franco
John Franco & Mary Franco, Tenants in Common
Liquidating Trust of ORBCOMM Global L.P.
Beneficiaries of the Liquidating Trust of ORBCOMM Global L.P. (1)
OHB Technology A.G.
Harald D. Berghoefer
James Eagan
Gruenwald Equity Partners GmbH
Hans E. W. Hoffmann
Korea Orbcomm Ltd.
Henning Melchers

                                       25

<PAGE>

Miller & Wrubel Asset Company
Northwood Capital Partners LLC
Northwood Ventures LLC
Orbcomm Asia Limited
ORBCOMM Asset Holdings Limited
ORBCOMM Deutschland AG
Kenneth Rind
Andre-Michael Schultz
Hyung-Jin Song
Walter H. Sonnenfeldt
Hans Steininger
Transport International Pool, Inc.

(1)  Upon distribution of the Common Stock by the Liquidating Trust of ORBCOMM
     Global L.P. to its beneficiaries, such beneficiaries will be deemed to have
     been "named" on Schedule I, such that such beneficiaries will constitute
     Holders for purposes of this Agreement.

                                       26<PAGE>

                                                                    EXHIBIT 10.7

================================================================================

                  CONVERTIBLE NOTE AND STOCK PURCHASE AGREEMENT

                                  By and Among

                                  ORBCOMM Inc.,

                                  ORBCOMM LLC,

                         PCG Satellite Investments, LLC

                                       and

                            MH Investors Orbcomm LLC

                    and, for purposes of Section 13.16 only,

                       CALPERS/PCG Corporate Partners, LLC

                    and, for purposes of Section 13.17 only,

                           MH Private Equity Fund LLC

                          Dated as of December 30, 2005

================================================================================

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE I DEFINITIONS....................................................     1

ARTICLE II SALE AND TRANSFER OF NOTES AND SHARES.........................    10
   2.01  Sale and Purchase of Convertible Notes and Shares...............    10
   2.02  Convertible Note Closing, Initial Share Closing and
         Subsequent Closing..............................................    11

ARTICLE III REPRESENTATIONS AND WARRANTIES...............................    12
   3.01  Organization and Good Standing..................................    12
   3.02  Capitalization; Title to Shares and Structure...................    13
   3.03  Subsidiaries and other Investments..............................    15
   3.04  Due Authorization; Enforceability...............................    16
   3.05  No Violation....................................................    16
   3.06  Financial Statements............................................    16
   3.07  Absence of Certain Changes......................................    17
   3.08  Litigation......................................................    18
   3.09  Compliance with Laws; Permits...................................    18
   3.10  Environmental Matters...........................................    19
   3.11  Taxes...........................................................    19
   3.12  Employee Benefit and Labor Matters..............................    20
   3.13  Real Property Owned or Leased; Title to Assets..................    21
   3.14  Sufficiency and Condition of Assets.............................    21
   3.15  Material Contracts..............................................    22
   3.16  Insurance.......................................................    25
   3.17  Intellectual Property...........................................    25
   3.18  Customers.......................................................    26
   3.19  Disclosure......................................................    26
   3.20  Transactions With Affiliates....................................    26
   3.21  Brokers or Finders..............................................    26
   3.22  Registration Rights.............................................    27
   3.23  Employee Matters................................................    27
   3.24  Side Letters....................................................    27
   3.25  FCC/Regulatory Matters..........................................    27
   3.26  ITAR Matters....................................................    29
   3.27  Minute Books....................................................    29

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF THE INVESTORS...............    30
   4.01  Organization and Good Standing..................................    30
   4.02  Due Authorization; Enforceability...............................    30
   4.03  No Violation....................................................    30
   4.04  Investment Intent...............................................    31
   4.05  Brokers or Finders..............................................    31
   4.06  Liability to Co-Investors.......................................    31
</TABLE>

                                        i

<PAGE>

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
ARTICLE V COVENANTS OF THE COMPANY.......................................    32
   5.01  Consents and Approvals..........................................    32
   5.02  Notice of Certain Events........................................    32
   5.03  Use of Proceeds.................................................    32
   5.04  FCC Matters.....................................................    32
   5.05  Further Assurances..............................................    32
   5.06  Conduct.........................................................    33
   5.07  Delivery of Audited 2006 Financial Statements...................    33
   5.08  Chief Operating Officer.........................................    33
   5.09  Directors and Officers Insurance................................    33

ARTICLE VI COVENANTS OF INVESTORS........................................    33
   6.01  Cooperation by the Investors....................................    33

ARTICLE VII COVENANTS OF THE PARTIES.....................................    33
   7.01  Reasonable Efforts..............................................    33
   7.02  Further Assurances..............................................    34
   7.03  Representation and Warranties...................................    34
   7.04  Public Announcements............................................    35
   7.05  Confidentiality.................................................    35
   7.06  Supplements to Disclosure Schedule..............................    36
   7.07  Application of Series A Dividends...............................    36

ARTICLE VIII CONDITIONS TO THE OBLIGATIONS OF COMPANY....................    37
   8.01  Representation, Warranties and Covenants........................    37
   8.02  Governmental Consents...........................................    37
   8.03  No Injunction...................................................    37
   8.04  Other Agreements................................................    37
   8.05  No Qualified Public Offering or Qualified Sale..................    38
   8.06  Change of Control...............................................    38

ARTICLE IX CONDITIONS TO THE OBLIGATIONS OF INVESTORS WITH RESPECT TO
   THE INITIAL CLOSING...................................................    38
   9.01  Representations, Warranties and Covenants.......................    38
   9.02  Consents........................................................    38
   9.03  No Litigation...................................................    39
   9.04  No Prohibition..................................................    39
   9.05  No Material Adverse Change......................................    39
   9.06  Legal Opinion...................................................    39
   9.07  Management Rights Letter........................................    39
   9.08  Board Composition...............................................    39
   9.09  Director's Indemnification Agreement............................    39
   9.10  Amendment of By-Laws............................................    40
</TABLE>

                                       ii

<PAGE>

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
   9.11  Effectiveness and Amendment of Initial Tranche Series B
         Preferred Stock Documents.......................................    40
   9.12  Stockholder Approval and Effectiveness of Amendments to
         Transaction Documents...........................................    40
   9.13  Convertible Noteholder Approval.................................    40
   9.14  Satcom Acquisition..............................................    40
   9.15  Stock Option Plan...............................................    40

ARTICLE X CONDITIONS TO THE OBLIGATIONS OF THE INVESTORS WITH RESPECT TO
   THE SUBSEQUENT CLOSING................................................    41
   10.01 Representations, Warranties and Covenants.......................    41
   10.02 Consents........................................................    41
   10.03 No Litigation...................................................    42
   10.04 No Prohibition..................................................    42
   10.05 No Material Adverse Change......................................    42
   10.06 No Qualified Public Offering or Qualified Sale..................    42
   10.07 Legal Opinion...................................................    42
   10.08 Insolvency Event................................................    42
   10.09 Change of Control...............................................    42
   10.10 Subscribers.....................................................    42
   10.11 Net Revenue.....................................................    42
   10.12 2006 Financial Statements.......................................    42

ARTICLE XI INTENTIONALLY DELETED.........................................    43

ARTICLE XII SURVIVAL AND INDEMNIFICATION.................................    43
   12.01 Survival and Indemnification....................................    43
   12.02 Limitations on Liability........................................    44

ARTICLE XIII MISCELLANEOUS PROVISIONS....................................    45
   13.01 Fees and Expenses...............................................    45
   13.02 Notices.........................................................    45
   13.03 Jurisdiction; Service of Process................................    46
   13.04 Governing Law...................................................    47
   13.05 Waiver..........................................................    47
   13.06 Entire Agreement and Modification...............................    47
   13.07 Amendment and Waiver............................................    47
   13.08 Assignments, Successors, and No Third-Party Beneficiaries.......    47
   13.09 Severability....................................................    48
   13.10 Captions; Currency..............................................    48
   13.11 Exhibits and Schedules..........................................    48
   13.12 Specific Performance............................................    48
   13.13 Interpretation..................................................    49
   13.14 Time of Essence.................................................    49
   13.15 Counterparts....................................................    49
</TABLE>

                                       iii

<PAGE>

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
   13.16 Limited CALPERS/PCG Guaranty....................................    49
   13.17 Limited MH Guaranty.............................................    50
</TABLE>

                                       iv
<PAGE>

                  CONVERTIBLE NOTE AND STOCK PURCHASE AGREEMENT

          This Agreement is made and entered into as of December 30, 2005, by
and among ORBCOMM Inc., a Delaware corporation (the "Company"), ORBCOMM LLC, a
Delaware limited liability company, ("ORBCOMM LLC"), PCG Satellite Investments,
LLC ("PCG") and MH Investors Orbcomm LLC ("MH") and, solely for purposes of
Section 13.16 and Section 13.17, respectively, CALPERS/PCG Corporate Partners,
LLC ("CALPERS/PCG") and MH Private Equity Fund LLC ("MH PEF"). Each of PCG and
MH is referred to herein individually as an "Investor" and collectively as the
"Investors".

                                    RECITALS

          A. The Company is a satellite-based telecommunications company that
provides narrowband, two-way monitoring, tracking and messaging services (the
"Business");

          B. The Investors desire to purchase from the Company, and the Company
desires to sell to the Investors, Convertible Notes which are convertible into
the Company's Series B Preferred Stock and shares of Series B Preferred Stock,
subject to the terms and conditions of this Agreement; and

          C. In consideration of the mutual representations, warranties,
covenants and agreements, and upon the terms and subject to the conditions
hereinafter set forth, the parties hereto agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

          For purposes of this Agreement, the following terms have the meanings
specified or referred to in this Article I:

          "Action" - any legal, administrative, arbitral, mediation or other
alternative dispute resolution procedure or other action, proceeding, claim,
inquiry or investigation before any court, arbitrator or other Governmental
Entity.

          "Affiliate" - with respect to a specified Person: (i) any Person that
directly, or indirectly through one or more intermediaries, controls, or is
controlled by, or is under common control with, the Person specified or any
Affiliate of such Person, including, without limitation, any partner, officer,
director, executor, trustee, member or employee of such Person and any venture
capital or private equity fund now or hereafter existing which is controlled by
or under common control with one or more general partners or shares the same
management company with such Person. For purposes of this definition, "control"
of a Person will mean the possession, directly or indirectly, of the power to
direct or cause the direction of its management or policies, whether through the
ownership of voting securities, by contract or otherwise.

          "Agreement" - this Agreement, as the same may be amended, modified or
supplemented from time to time in accordance with its terms.

<PAGE>

Convertible Note and Stock Purchase Agreement

          "Books and Records" - with respect to a specified person, the books of
account and other financial and corporate records and files (including records
and files stored on computer disks or tapes or any other storage medium) of such
person, including minute books, stock record books, books of account, corporate
seals, written contracts and other documents, instruments and papers.

          "Business" - shall have the meanings given in the Recitals.

          "Business Day" - any day other than a Saturday, Sunday or other day on
which commercial banks located in New York City are authorized or required to be
closed.

          "Capitalization Table" - means the pro forma capitalization table of
the Company, after giving effect to (i) the Initial Closing and (ii) the
Subsequent Closing, set forth in Part 3.02(j) of the Disclosure Schedule.

          "CERCLA" - the Comprehensive Environmental Response, Compensation and
Liability Act of 1980, as amended.

          "Change-of-Control" means (i) sale, transfer or other disposition of
all or substantially all of the assets and properties of the Company to, or the
proposed entry into any merger or consolidation agreement with, any third party,
whether in a single transaction or series of related transactions, which results
in the holders of the outstanding voting power of the Company immediately prior
to such transaction or series of transactions owning less than a majority of the
outstanding voting securities in the continuing or surviving company or entity
following such transaction or transactions or (ii) a sale, transfer or exchange
of all of the Company's outstanding capital stock to a third party, whether in a
single transaction or series of related transactions, for cash or, in the case
of a stock-for-stock transaction, which results in the holders of the
outstanding voting power of the Company immediately prior to such transaction or
series of transactions owning less than a majority of the outstanding voting
securities for the election of directors in the continuing or surviving company
or entity following such transaction or transactions.

          "Claim" - a written notice, asserting a breach of representation or
warranty, covenant, agreement or other obligation contained in this Agreement or
in any Transaction Document.

          "Code" - the Internal Revenue Code of 1986, as amended.

          "Common Stock" - common shares, par value $0.001 per share, of the
Company.

          "Common Stock Voting Agreement" - means the Second Amended and
Restated Common Stock Voting Agreement entered into among the holders of the
Common Stock, in the form attached as Exhibit E.

          "Communications Licenses" - means the licenses referenced on Part
3.09(b) of the Disclosure Schedule.

          "Communications Regulation" as defined in Section 7.01(b) of the
Agreement.

                                       2

<PAGE>

Convertible Note and Stock Purchase Agreement

          "Company" - as defined in the preamble of this Agreement.

          "Company's Intellectual Property" - as defined in Section 3.17(a) of
the Agreement.

          "Company Threshold" - as defined in Section 12.02(c) of this
Agreement.

          "Confidential Information" - means information of any kind in written,
documentary or other tangible form disclosed by one party to this Agreement to
any other party to this Agreement clearly identified (whether with a stamp,
legend or other marking or orally) as confidential at the time of the
disclosure, including, but not limited to, (i) information of a financial,
business, planning, marketing or technical nature, (ii) models, tools, hardware
and software, and (iii) any documents, reports, memoranda, notes, files or
analyses prepared by or on behalf of the receiving party that contain, summarize
or are based upon any of the foregoing; provided, however, that "Confidential
Information" shall not include information that: (i) is publicly available prior
to the date of this Agreement; (ii) becomes publicly available after the date of
this Agreement through no wrongful act of the receiving party; (iii) is
furnished to others by the disclosing party without similar restrictions on
their right to use or disclose; (iv) is rightfully known by the receiving party
without any confidentiality restrictions at the time of receipt of such
information from the disclosing party or becomes rightfully known to the
receiving party without confidentiality restrictions from a source other than
the disclosing party; or (v) is independently developed by the receiving party
by persons who did not have access, directly or indirectly, to the Confidential
Information.

          "Confidentiality Agreements" - those certain agreements between the
Company and an Investor, if any, regarding the provision of Confidential
Information to each such Investor.

          "Consents" - all consents, waivers, approvals, allowances,
authorizations, declarations, filings, recordings, registrations, validations or
exemptions and notifications.

          "Convertible Note Closing" - as defined in Section 2.02(a) of this
Agreement.

          "Convertible Noteholders" means the holders of the Convertible Notes.

          "Convertible Notes" means the 10% Convertible Promissory Notes of the
Company due February 16, 2010 in the form of Exhibit I hereto issued to the
purchasers identified on Schedule II hereto in the principal amounts set forth
on Schedule II hereto.

          "Damages" - all losses, Liabilities, claims, damages, deficiencies,
obligations, fines, payments (including incidental and consequential damages),
expenses (including costs of investigation and defense and reasonable attorneys'
fees and expenses), actions, causes of action, assessments, judgments or amounts
paid in settlement, whether or not involving a third party claim.

          "Disclosure Schedule" - the Disclosure Schedule delivered by the
Company to the Investors concurrently with the execution and delivery of this
Agreement, as supplemented or amended as provided herein.

                                       3

<PAGE>

Convertible Note and Stock Purchase Agreement

          "Encumbrance" - any charge, claim, "adverse claim" (as defined in
Section 8-102(a)(1) of the New York Uniform Commercial Code), community property
interest, condition, equitable interest, easement, encumbrance, option, lien,
pledge, hypothecation, assignment, deposit arrangement, security interest
(preference, priority or other security agreement or preferential arrangement of
any kind), mortgage, deed of trust, retention of title agreement, right of first
refusal, right of first offer, preemptive right, or other restriction or
granting or any rights of any kind (including any restriction on, or right
granted with respect to, the use, voting, transfer, receipt of income or
exercise of any other attribute of ownership).

          "Environmental Laws" - any and all applicable Laws and Permits issued,
promulgated or entered into by any Governmental Entity relating to the
environment, the protection or preservation of human health or safety, including
the health and safety of employees, the preservation or reclamation of natural
resources, or the management, Release or threatened Release of Hazardous
Materials.

          "ERISA" - the Employee Retirement Income Security Act of 1974, as
amended.

          "Facilities" - any buildings, plants or structures, owned, operated or
leased by the Company and its Subsidiaries or located on any Real Property.

          "FCC" - means the United States Federal Communications Commission.

          "Financial Statements" - as defined in Section 3.06(a) of this
Agreement.

          "Foreign Licenses" - as defined in Section 3.25(c) of this Agreement.

          "GAAP" - generally accepted accounting principles of the United States
as in effect from time to time.

          "Governmental Entity" - any: (i) federal, state, local, foreign or
international government; (ii) court, arbitral or other tribunal or governmental
or quasi-governmental authority of any nature (including any governmental
agency, political subdivisions, instrumentalities, branch, department, official,
or entity); or (iii) body exercising, or entitled to exercise, any
administrative, executive, judicial, legislative, police, regulatory, or taxing
authority or power of any nature pertaining to government.

          "Guaranteed MH Obligations" as defined in Section 13.17 of the
Agreement.

          "Guaranteed PCG Obligations" as defined in Section 13.16 of the
Agreement.

          "Hazardous Materials" - those hazardous materials, substances or
wastes that are regulated by, or form the basis of liability under, any
Environmental Law, including PCBs, pollutants, explosive or regulated
radioactive materials or substances, hazardous wastes or chemicals, petroleum
(including crude oil or any fraction thereof) or petroleum distillates, asbestos
or asbestos containing materials, materials listed in 49 C.F.R. Section 172.101
and materials defined as hazardous substances pursuant to Section 101(14) of
CERCLA.

          "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of
1976.

                                       4

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Convertible Note and Stock Purchase Agreement

          "Indemnified Party" - as defined in Section 12.01(b) of the Agreement.

          "Initial Closing" - as defined in Section 2.02(a) of this Agreement.

          "Initial Closing Date" - as defined in Section 2.02(a) of this
Agreement.

          "Initial Share Closing" as defined in Section 2.02(b) of this
Agreement.

          "Initial Tranche Series B Preferred Stock" as defined in Section
2.01(a) of this Agreement.

          "Insolvency Event" means (i) the Company or any Material Subsidiary of
the Company shall commence a voluntary case or other proceeding seeking
liquidation, reorganization or other relief with respect to itself or its debts
under any bankruptcy, insolvency or other similar law now or hereafter in effect
or seeking the appointment of a trustee, receiver, liquidator, custodian or
other similar official of it or any substantial part of its property, or shall
consent to any such relief or to the appointment of or taking possession by any
such official in an involuntary case or other proceeding commenced against it,
or shall make a general assignment for the benefit of creditors, or shall fail
generally to pay its debts as they become due, or shall take any corporate
action to authorize any of the foregoing; or (ii) an involuntary case or other
proceeding shall be commenced against the Company or any Material Subsidiary of
the Company (which shall not have been dismissed) seeking liquidation,
reorganization or other relief with respect to it or its debts under any
bankruptcy, insolvency or other similar law now or hereafter in effect or
seeking the appointment of a trustee, receiver, liquidator, custodian or other
similar official of it or any substantial part of its property; or (iii) an
order for relief shall be entered against the Company or any Material Subsidiary
of the Company under the federal bankruptcy laws as now or hereafter in effect.

          "Insurance Policies" - as defined in Section 3.16 of this Agreement.

          "Intellectual Property" - all United States and foreign (a) patents,
patent applications, patent disclosures and inventions and discoveries which may
be patentable and improvements thereto, (b) registered and unregistered
trademarks, service marks, logos, trade names and corporate names and
registrations and applications for registration thereof, including all marks
registered in the United States Patent and Trademark Office, (c) copyrights in
both published and unpublished works and registrations and applications for
registration thereof, (d) computer software, data and documentation, (e) trade
secrets and confidential business information (including ideas, formulas,
compositions, inventions (whether patentable or unpatentable and whether or not
reduced to practice), know-how, manufacturing and production processes and
techniques, research and development information, drawings, specifications,
designs, plans, proposals, technical data, copyrightable works, financial,
marketing and business data, pricing and cost information, business and
marketing plans and customer and supplier lists and information) (collectively,
"Trade Secrets") and (f) copies and tangible embodiments thereof (in whatever
form or medium).

          "Investors" - as defined in the preamble of this Agreement.

                                       5

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Convertible Note and Stock Purchase Agreement

          "IRS" - the United States Internal Revenue Service or any other
successor agency, and, to the extent relevant, the United States Department of
the Treasury.

          "ITAR" means International Traffic in Arms Regulation, 22 C.F.R.
Sections 120-130.

          "Latest Audited Balance Sheet" - means the audited consolidated
balance sheet of the Company as of December 31, 2004 as set forth on Part 3.06
of the Disclosure Schedule (after giving effect to the adjustments set forth on
Part 3.06(b) of the Disclosure Schedule).

          "Latest Balance Sheet" - means the unaudited consolidated balance
sheet of the Company as of November 30, 2005 as set forth on Part 3.06 of the
Disclosure Schedule. For purposes of the representations and warranties made on
and as of the Subsequent Closing Date, Latest Balance Sheet shall mean the
consolidated balance sheet of the Company as of December 31, 2006 audited by an
independent accounting firm of recognized national standing (or, if the Majority
Holders elect to waive the condition that the Latest Balance Sheet be audited by
an independent accounting firm of recognized national standing prior to the
Subsequent Closing, the unaudited balance sheet as of December 31, 2006)
provided in the updated Disclosure Schedule delivered pursuant to Section 7.06
on the Subsequent Closing Date.

          "Laws" - means all laws, principles of common law, statutes,
constitutions, treaties, rules, regulations, ordinances, codes, rulings, Orders
and determinations of all Governmental Entities.

          "Leased Property" - as defined in Section 3.13(a) of this Agreement.

          "Leases" - all leases, subleases, rights to occupy or use and other
arrangements with respect to Real Property, including, in each case, all
amendments, modifications and supplements thereto and waivers and consents
thereunder.

          "Liability" - all debts, liabilities and obligations whether known or
unknown, asserted or unasserted, fixed, absolute or contingent, matured or
unmatured, accrued or unaccrued, liquidated or unliquidated, due or to become
due, whenever or however arising (including, whether arising out of any contract
or tort based on negligence, strict liability or otherwise).

          "Majority Holders" - means the Investors (or their assignees) holding
a majority of shares of Series B Preferred Stock (or Common Stock or other
securities issued upon conversion or exchange thereof) issued pursuant to this
Agreement (including shares of Series B Preferred Stock issued upon conversion
of Convertible Notes purchased hereunder).

          "Material Adverse Change" means a material adverse change, or any
development(s) that would, with the passage of time, reasonably be expected to
result in a material adverse change (in each case, individually or in the
aggregate with all such changes or developments), in the condition, financial or
otherwise, business, assets, results of operations or prospects of the Company
and its Subsidiaries, taken as a whole. Any determination as to whether any
change or development is a Material Adverse Change shall only be made after
taking into account all insurance coverages and indemnifications (to the extent
the Company has received payment with respect thereto to which the Company is
entitled and taking into account

                                       6

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Convertible Note and Stock Purchase Agreement

the likelihood and timing of any payments (if any) to be received under such
insurance coverages and/or indemnifications and the creditworthiness of the
insurer and/or indemnitor).

          "Material Adverse Effect" - When used in connection with the Company
or its Subsidiaries, any change or effect that, individually or in the aggregate
with any such other changes or effects, is materially adverse to the condition,
financial or otherwise, business, assets, results of operations or prospects of
the Company and its Subsidiaries taken as a whole which, individually or in the
aggregate, results in a diminution in the value of the Series B Preferred Stock
issued to the Investors on the Initial Closing Date in excess of five hundred
thousand dollars ($500,000) (assuming, for this purpose that all outstanding
shares of Series B Preferred Stock and Series A Preferred Stock were converted
to Common Stock). Any determination as to whether any change or effect has a
Material Adverse Effect shall only be made after taking into account all
insurance coverages and indemnifications (to the extent the Company has received
payment with respect thereto to which the Company is entitled and taking into
account the likelihood and timing of any payments (if any) to be received under
such insurance coverages and/or indemnifications and the creditworthiness of the
insurer and/or indemnitor).

          "Material Contract" - as defined in Section 3.15 of this Agreement.

          "Material Subsidiary" - means ORBCOMM LLC, ORBCOMM License Corp.,
Stellar Communications Ltd. and any other Subsidiary of the Company that would
constitute a "significant subsidiary" as defined in Rule 1-02(w) of Regulation
S-X of the promulgated under the Securities Act (excluding Satcom and ORBCOMM
Europe).

          "Options" - all options to purchase Common Stock.

          "ORBCOMM Europe" - ORBCOMM Europe, LLC, a Delaware limited liability
company, and its Subsidiaries.

          "ORBCOMM LLC" - ORBCOMM LLC, a Delaware limited liability company.

          "Order" - any award, decision, stipulation, injunction, judgment,
order, ruling, subpoena, writ, decree or verdict entered, issued, made or
rendered by any Governmental Entity.

          "Owned Property" - as defined in Section 3.13 of this Agreement.

          "PCG Entities" - means collectively PCG Satellite Investments, LLC,
CALPERS PCG Corporate Partners, LLC and any Affiliate(s) of either of the
foregoing.

          "Permit" - all licenses, permits, certificates, Consents or other
authorizations, issued, granted, given or otherwise made available by or under
the authority of any Governmental Entity or pursuant to any Law.

          "Permitted Encumbrances" - means (i) in respect of real property,
Encumbrances consisting of zoning or planning restrictions, easements,
covenants, Permits or other restrictions or limitations on the use of real
property or irregularities in title thereto which do not materially detract from
the value of, or impair the use of, such real property as currently operated,
(ii) Encumbrances for Taxes, assessments or governmental charges or levies on
property not yet due

                                       7

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Convertible Note and Stock Purchase Agreement

and payable or which are being contested in good faith and for which appropriate
reserves are maintained, (iii) Encumbrances of landlords, carriers,
warehousemen, mechanics and other Encumbrances imposed by law and incurred in
the ordinary course of business, (iv) for personal property, Encumbrances for
purchase money obligations incurred in the ordinary course of business
consistent with past practice, (v) Encumbrances set forth on any section of Part
3.14 of the Disclosure Schedule and (vi) other Encumbrances (other than
mortgages, deeds of trust, title retention agreements or similar security
interests) which, individually or in the aggregate, would not reasonably be
expected to have a Material Adverse Effect.

          "Person" - any individual, sole proprietorship, firm, corporation
(including any non-profit corporation and public benefit corporation), general
or limited partnership, limited liability partnership, joint venture, limited
liability company, estate, trust, association, organization, labor union,
institution, entity or Governmental Entity, including any successor (by merger
or otherwise) of such entity.

          "Preferred Stock Voting Agreement" - means the Second Amended and
Restated Preferred Stock Voting Agreement to be entered into among the holders
of the Series A Preferred Stock and the Series B Preferred Stock, in the form
attached hereto as Exhibit D.

          "Purchase Price" - as defined in Section 2.01(b) of this Agreement.

          "Qualified Public Offering" - shall have the meaning set forth in the
Restated Certificate.

          "Qualified Sale" - shall have the meaning set forth in the Restated
Certificate.

          "Real Property" - as defined in Section 3.13 of this Agreement.

          "Registration Rights Agreement" - the Second Amended and Restated
Registrations Rights Agreement to be entered into between the Company, certain
stockholders of the Company and the Investors in the form attached hereto as
Exhibit B.

          "Release" - defined in Section 101(22) of CERCLA.

          "Representative" - with respect to a particular Person, any director,
officer, employee, agent, consultant, advisor, or other representative of such
Person, including legal counsel, accountants, and financial advisors.

          "Restated Certificate" - the Third Amended and Restated Certificate of
Incorporation of the Company in the form attached hereto as Exhibit A.

          "Satcom" - Satcom International Group Plc, an English public limited
company, and its Subsidiaries.

          "Satellite and Ground Earth Station Assets" - as defined in Section
3.14(a) of the Agreement.

          "Securities Act" - the Securities Act of 1933, as amended.

                                       8

<PAGE>

Convertible Note and Stock Purchase Agreement

          "Securities Exchange Act" - the Securities Exchange Act of 1934, as
amended.

          "Series A Preferred Stock" - means the Series A Convertible Redeemable
Preferred Stock, par value $0.001 per share of the Company.

          "Series B Preferred Stock" - means the Series B Convertible Redeemable
Preferred Stock, par value $0.001 per share, of the Company.

          "Settlement" - as defined in Section 7.01(c) of the Agreement.

          "Stockholders Agreement" - means the Second Amended and Restated
Stockholders Agreement to be entered into among the Company, the Investors and
other stockholders of the Company in the form attached hereto on Exhibit C.

          "Shares" - means shares of the Company's Series B Preferred Stock.

          "Subsequent Closing" - as defined in Section 2.02(c).

          "Subsequent Closing Date" - as defined in Section 2.02(c).

          "Subsequent Closing Termination Date" shall mean (i) March 12, 2007 if
the Company has delivered the 2006 Audited Financial Statements to Investors on
or prior to February 15, 2007 or if the Majority Holders otherwise waive the
condition in Section 10.12 prior to March 12, 2007, (ii) the date that is 15
days after delivery by the Company of the 2006 Audited Financial Statements to
Investors if such 2006 Audited Financial Statements are delivered to Investors
after February 15, 2007 and the Majority Holders do not waive the condition in
Section 10.12 or (iii) any date after March 12, 2007 designated by the Majority
Holders prior to the date that is contemplated by clause (ii) if the Majority
Holders waive the condition in Section 10.12 after March 12, 2007; provided,
however, that the Majority Holders may, in their sole discretion, designate any
date on or after April 30, 2007 as the Subsequent Closing Termination Date
irrespective of whether the condition in Section 10.12 is waived (it being
understood that if the Majority Holders designate a date pursuant to this
proviso and the Company delivers the 2006 Audited Financial Statements prior to
such date, the Subsequent Closing Termination Date shall be the earlier of (a)
the date so designated and (b) 15 days after delivery of the 2006 Audited
Financial Statements).

          "Subsidiary" - any corporation, limited liability company,
partnership, association or other business entity of which (i) if a corporation,
a majority of the total voting power of shares of stock entitled (without regard
to the occurrence of any contingency) to vote in the election of directors,
managers or trustees thereof is at the time owned or controlled, directly or
indirectly, by that Person or one or more of the other Subsidiaries of that
Person or a combination thereof, or (ii) if a limited liability company,
partnership, association or other business entity, a majority of the partnership
or other similar ownership interest thereof is at the time owned or controlled,
directly or indirectly, by any Person or one or more Subsidiaries of the Person
or a combination thereof; for purposes hereof, a Person or Persons shall be
deemed to have a majority ownership interest in a limited liability company,
partnership, association, or other business entity if such Person or Persons
shall be allocated a majority of limited liability company, partnership,
association or other business entity gains or losses or shall be or control

                                       9

<PAGE>

Convertible Note and Stock Purchase Agreement

any managing member or general partner of such limited liability company,
partnership, association or other business entity. For purposes of this
Agreement (other than Section 3.06) Satcom International Group plc and Orbcomm
Europe LLC shall be deemed to be Subsidiaries of the Company, but only with
respect to matters, conditions, events or circumstances occurring or arising
after October 7, 2005.

          "Taxes" - all taxes, charges, duties, fees, levies or other
assessments, including, without limitation, income, excise, property, sales,
use, gross receipts, recording, insurance, value added, profits, license,
withholding, payroll, employment, net worth, capital gains, transfer, stamp,
social security, environmental, occupation and franchise taxes, imposed by any
Governmental Entity, and including any interest, penalties and additions
attributable thereto.

          "Third Party Licenses" as defined in Section 3.25(a) of this
Agreement.

          "Threshold" - as defined in Section 12.02(b) of this Agreement.

          "to the knowledge" - means the actual knowledge of the executive
officers of a Person after reasonable inquiry.

          "Transaction" or "Transactions" - means the transactions contemplated
by this Agreement and the Transaction Documents, including, without limitation,
the transactions contemplated by Section 2.01(a), (b) and (c).

          "Transaction Documents" - means this Agreement, the Restated
Certificate, the Stockholders Agreement, Registration Rights Agreement, the
Preferred Stock Voting Agreement, the Common Stock Voting Agreement, the
Convertible Notes and any certificate, schedule, agreement or other document
required to be delivered pursuant to this Agreement.

          "Warrant" - means the warrants of the Company issued to the purchasers
in connection with the issuance of the Convertible Notes.

                                   ARTICLE II

                      SALE AND TRANSFER OF NOTES AND SHARES

               2.01 Sale and Purchase of Convertible Notes and Shares.

               (a) On the basis of the representations, warranties, covenants
     and agreements and subject to the satisfaction or waiver of the conditions
     set forth in Articles VIII and IX of this Agreement, at the Convertible
     Note Closing, the Company will sell to the Investors, and the Investors
     will purchase from the Company, the Convertible Notes and Warrants in the
     form set forth as Exhibit I and Exhibit I-A hereto in the principal amounts
     set forth opposite such Investors name on Schedule I hereto. The principal
     amount of the Notes purchased shall be paid at the Convertible Note Closing
     in cash. The Convertible Notes purchased on the Initial Closing Date by the
     Investors shall automatically convert into 136,476 shares of Initial
     Tranche Series B Preferred Stock immediately following the Convertible Note
     Closing pursuant to the terms of Section 6(c) of each Convertible Note. The
     Series B Preferred Stock issued pursuant to the automatic conversion of the
     Convertible

                                       10

<PAGE>

Convertible Note and Stock Purchase Agreement

     Notes as described in this Section 2.01(a) shall be the "Initial Tranche
     Series B Preferred Stock."

               (b) On the basis of the representations, warranties, covenants
     and agreements and subject to the satisfaction or waiver of the conditions
     set forth in Articles VIII and IX of this Agreement, at the Initial Share
     Closing, the Company will sell to the Investors, and the Investors will
     purchase from the Company, the number of Shares set forth opposite such
     Investor's name on Schedule I hereto under the heading "Initial Closing" at
     a price of $4.03 per Share (the "Purchase Price"). The Purchase Price shall
     be paid at the Initial Closing in cash.

               (c) On the basis of the representations, warranties, covenants
     and agreements and subject to the satisfaction or waiver of the conditions
     set forth in Articles VIII and X of this Agreement and subject to the last
     sentence of Section 2.02(c), unless otherwise agreed to by the Company and
     the Majority Holders, at the Subsequent Closing, the Company will sell to
     the Investors, and the Investors will purchase from the Company, the number
     of Shares set forth opposite such Investor's name on Schedule I under the
     heading "Subsequent Closing" at the Purchase Price.

               (d) The obligations of Investors to purchase Shares and
     Convertible Notes allocated to them on Schedule I hereto are several and
     not joint.

               2.02 Convertible Note Closing, Initial Share Closing and
     Subsequent Closing.

               (a) Convertible Note Closing. The closing of the transactions
     contemplated by Section 2.01(a) of this Agreement and the Transaction
     Documents (the "Convertible Note Closing") will take place at the offices
     of Chadbourne & Parke LLP, 30 Rockefeller Plaza, New York City, at 10:00
     a.m. Eastern time, on December 30, 2005 subject to the satisfaction or
     waiver of all the conditions set forth in Articles VIII and IX hereof or
     such other date, place or time agreed to by the Company and the Majority
     Holders (such date of the Convertible Note Closing being hereinafter
     referred to as the "Initial Closing Date"). The Company shall deliver to
     each Investor a Convertible Note, a certificate representing Warrants and a
     certificate representing such shares as the Convertible Notes purchased by
     such Investor convert in to, against payment of the purchase price therefor
     by wire transfer of immediately available funds to such bank and account
     specified by the Company, cancellation of indebtedness (including by way of
     crediting the Transaction Expenses described in Section 13.01 against
     payment of the purchase price), or any combination thereof.

               (b) Initial Share Closing. The closing of the transactions
     contemplated by Section 2.01(b) of this Agreement and the Transaction
     Documents (the "Initial Share Closing" and together with the Convertible
     Note Closing, the "Initial Closing") will take place on the Initial Closing
     Date immediately following the Convertible Note Closing. The Company shall
     deliver to each Investor a certificate representing the Shares purchased by
     such Investor against payment of the purchase price therefor by wire
     transfer of immediately available funds to such bank and account specified
     by the Company, cancellation of indebtedness, or any combination thereof.

                                       11

<PAGE>

Convertible Note and Stock Purchase Agreement

               (c) Subsequent Closing. Subject in all respects to the last
     sentence of this paragraph, the subsequent closing (the "Subsequent
     Closing") of the transactions contemplated by this Agreement and the
     Transaction Documents will take place at the offices of Chadbourne & Parke
     LLP, 30 Rockefeller Plaza, New York City, at 10:00 a.m. Eastern time, on
     March 1, 2007 (or on a date designated by the Majority Holders (upon no
     less than two (2) business days written notice to the Company) that is on
     or prior to the Subsequent Closing Termination Date if the Audited 2006
     Financial Statements have not been delivered to Investors prior to February
     15, 2007), subject to the satisfaction or waiver of all conditions set
     forth in Articles VIII and X hereof, or such other date, place or time
     agreed to by the Company and the Majority Holders (such date of the Closing
     being hereinafter referred to as the "Subsequent Closing Date"). The
     Company shall deliver to each Investor a certificate representing the
     Shares such Investor is purchasing at the Subsequent Closing, against
     payment of the purchase price therefor by wire transfer of immediately
     available funds to such bank and account specified by the Company,
     cancellation of indebtedness, or any combination thereof. Notwithstanding
     any of the foregoing, the obligation of the Investors to purchase Shares
     and the Company's obligation to sell Shares under Section 2.01(c) hereof
     shall terminate in full (i) upon consummation of a Qualified Sale or
     Qualified Public Offering or (ii) on the Subsequent Closing Termination
     Date (unless the Company and the Majority Holders agree otherwise) if the
     Subsequent Closing has not occurred on or by such date (provided that the
     Company's obligation to sell such Shares shall not terminate if the
     Subsequent Closing has not occurred as a result of a breach by the Company
     of its obligations under this Agreement and an Investor's obligation to
     purchase such Shares shall not terminate if the Subsequent Closing has not
     occurred as a result of a breach by such Investor of its obligations under
     this Agreement).

                                  ARTICLE III

                         REPRESENTATIONS AND WARRANTIES

               The Company and ORBCOMM LLC hereby jointly and severally
     represent and warrant to each of the Investors on each of the date hereof,
     the Initial Closing Date and if the Subsequent Closing occurs, the
     Subsequent Closing Date as follows:

               3.01 Organization and Good Standing. The Company is a
     corporation, duly incorporated, validly existing and in good standing under
     the laws of its jurisdiction of incorporation, and has full power and
     authority to conduct its business in the manner in which it is presently
     being conducted, except where the failure to be so organized, existing and
     in good standing or to have such power or authority would not have a
     Material Adverse Effect. The Company is duly qualified or licensed to do
     business and in good standing in each jurisdiction in which the property
     owned, leased or operated by it or the nature of the business conducted by
     it makes such qualification or licensing necessary except in such
     jurisdictions where the failure to be so qualified, licensed and in good
     standing, individually or in the aggregate, would not, individually or in
     the aggregate, be reasonably expected to have a Material Adverse Effect.
     ORBCOMM LLC is a limited liability company, duly formed, validly existing
     and in good standing under the laws of its jurisdiction of formation, and
     has full power and authority to conduct its business in the manner in which
     it is presently being conducted, except where the failure to be so
     organized, existing and in good standing or to have such power or authority

                                       12

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Convertible Note and Stock Purchase Agreement

would not, individually or in the aggregate, be reasonably expected to have a
Material Adverse Effect. ORBCOMM LLC is duly qualified or licensed to do
business and in good standing in each jurisdiction in which the property owned,
leased or operated by it or the nature of the business conducted by it makes
such qualification or licensing necessary except in such jurisdictions where the
failure to be so qualified, licensed and in good standing, individually or in
the aggregate, would not, individually or in the aggregate, be reasonably
expected to have a Material Adverse Effect. Part 3.01 of the Disclosure Schedule
lists each jurisdiction in which the Company or ORBCOMM LLC is qualified to do
business. True and complete copies of the Certificate of Incorporation and
Bylaws, as amended to date, of the Company and the Certificate of Formation and
Limited Liability Company Operating Agreement, as amended to date, of ORBCOMM
LLC have previously been delivered or made available to the Investors.

               3.02 Capitalization; Title to Shares and Structure.

               (a) As of the execution of this Agreement, the authorized capital
     stock of the Company consists of seventy five million (75,000,000) shares
     of Common Stock and fifteen million (15,000,000) shares of Series A
     Preferred Stock. Immediately prior to the Initial Closing, eight million
     five hundred thirty five thousand twenty six (8,535,026) shares of Common
     Stock and fourteen million fifty three thousand six hundred eleven
     (14,053,611) shares of Series A Preferred Stock were issued and outstanding
     all of which were validly issued, fully paid and non-assessable.
     Immediately prior to the Convertible Notes Closing, Convertible Notes with
     a principal balance of twenty four million four hundred sixty nine thousand
     dollars ($24,469,000) were outstanding, which are convertible into six
     million seventy one thousand six hundred twenty two (6,071,687) shares
     (after eliminating fractional shares) of Initial Tranche Series B Preferred
     Stock. Schedule II hereto sets forth a true and accurate list of all of the
     Convertible Noteholders and the principal balance of the Convertible Notes
     held by each Convertible Noteholder as of the date of this Agreement and
     prior to the Convertible Note Closing.

               (b) Effective as of the Convertible Note Closing and prior to the
     Initial Share Closing, the authorized capital stock of the Company shall
     consist of 75,000,000 shares of Common Stock, 15,000,000 shares of Series A
     Preferred Stock and 13,000,000 shares of Initial Tranche Series B Preferred
     Stock. Effective as of the Convertible Note Closing and prior to the
     Initial Share Closing 8,535,026 shares of Common Stock, 14,053,611 shares
     of Series A Preferred Stock and 6,208,163 shares of Initial Tranche Series
     B Preferred Stock shall be issued and outstanding, and no Convertible Notes
     or Warrants shall be outstanding except for the subscription of Marble Arch
     Group Ltd. to purchase $250,000 of Convertible Notes, which shall be
     automatically converted into 62,034 shares of Series B Preferred Stock upon
     payment of the subscription.

               (c) Effective as of the Initial Share Closing, the authorized
     capital stock of the Company shall consist of 105,000,000 shares of Common
     Stock, 15,000,000 shares of Series A Preferred Stock and 30,000,000 shares
     of Series B Preferred Stock. Effective as of the Initial Share Closing (i)
     8,535,026 shares of Common Stock, 14,053,611 shares of Series A Preferred
     Stock and 17,629,999 shares of Series B Preferred Stock shall be issued and
     outstanding and an additional 62,034 shares of Series B Preferred Stock
     shall be reserved for issuance to Marble Arch Group Ltd. upon the payment
     of the subscription price therefor, (ii)

                                       13

<PAGE>

Convertible Note and Stock Purchase Agreement

     10,297,767 shares of Series B Preferred Stock will be reserved for issuance
     to the Investors upon the Subsequent Closing; (iii) 45,000,000 shares of
     Common Stock will be reserved for issuance upon conversion of the Series A
     Preferred Stock and the Series B Preferred Stock; (iv) 7,351,905 shares of
     Common Stock will be reserved for issuance under the Company's Stock Option
     Plan, (v) 478,393 shares of Series A Preferred Stock shall be reserved for
     issuance upon the exercise of warrants to purchase Series A Preferred Stock
     and 2,876,993 shares of Common Stock shall be reserved for issuance upon
     exercise of warrants to purchase Common Stock.

               (d) The authorized capital of ORBCOMM LLC consists of 8,486,901
     common membership interest units all of which are owned by the Company.

               (e) Part 3.02(e) of the Disclosure Schedule contains a true and
     complete list of the holders of the securities of the Company as of the
     date of this Agreement, indicating each holder's name, the type and amount
     of securities held, the exercise or conversion price, if any, and the
     redemption or repurchase price, if other than the nominal amount.

               (f) Except for (i) issuances of Shares pursuant to this Agreement
     and (ii) as otherwise disclosed on Part 3.02(e) of the Disclosure Schedule,
     there are no outstanding options, warrants, rights (including conversion or
     preemptive rights and rights of first refusal), or agreements of any kind
     for the purchase or acquisition from the Company of any of its securities.
     The Company is not a party or subject to any agreement or understanding,
     and, except as set forth in the Transaction Documents or as otherwise
     disclosed on Part 3.02(f) of the Disclosure Schedule, to the best of the
     Company's knowledge, there is no agreement or understanding between any
     persons that affects or relates to the voting or giving of written consents
     with respect to any security or the voting by a director of the Company.
     The Company is not subject to any obligation (i) to repurchase, redeem or
     otherwise acquire any shares of capital stock or securities convertible
     into capital stock of the Company, or (ii) to vote or to dispose of any
     shares of capital stock of the Company or other equity securities except
     for the sale of Shares pursuant to this Agreement or as set forth in the
     Transaction Documents.

               (g) There are no options, warrants, convertible notes,
     convertible securities or other rights to acquire interests of ORBCOMM LLC
     outstanding.

               (h) All issued and outstanding shares of Common Stock, Series A
     Preferred Stock, Series B Preferred Stock and Convertible Notes of the
     Company have been as of the date of this Agreement or will be as of the
     Initial Share Closing and the Subsequent Closing, duly authorized and
     validly issued, fully paid and nonassessable, and issued in accordance with
     the registration or qualification provisions of the Securities Act and any
     relevant state securities laws or pursuant to valid exemptions therefrom.
     The Shares being purchased by the Investors hereunder, and the Shares
     issuable to the Investors pursuant to the conversion of the Convertible
     Notes purchased by the Investors hereunder, when issued or sold, and
     delivered in accordance with the terms of this Agreement for the
     consideration expressed herein, will be duly authorized, validly issued,
     fully paid and nonassessable (assuming payment of the purchase price
     thereof), and will be free of restrictions on transfer

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Convertible Note and Stock Purchase Agreement

     other than restrictions on transfer expressly stated in the Transaction
     Documents and under applicable state and federal securities laws. The
     Common Stock issuable upon conversion of the Shares will be as of the
     Initial Closing and the Subsequent Closing duly and validly reserved for
     issuance and, upon issuance in accordance with the terms of the Restated
     Certificate and upon payment therefor as provided in this Agreement, will
     be duly authorized, validly issued, fully paid and nonassessable and will
     be free of restrictions on transfer other than restrictions on transfer
     expressly stated in the Transaction Documents and under applicable state
     and federal securities laws.

               (i) Assuming each Investor's representations set forth in Section
     4.04 of this Agreement is true and correct, the offer, sale and issuance of
     the Convertible Notes and Shares as contemplated by this Agreement are
     exempt from the registration requirements of the Securities Act and the
     qualification requirements of all applicable state securities laws, and
     neither the Company nor any authorized agent acting on its behalf will take
     any action hereafter that would cause the loss of any such exemption.

               (j) The capitalization of the Company, (i) after giving effect to
     the Initial Closing and (ii) after giving effect to the Subsequent Closing,
     is set forth in the capitalization table set forth in Part 3.02(j) of the
     Disclosure Schedule (the "Capitalization Table"). Except as set forth in
     the Capitalization Table, Part 3.02(e) of the Disclosure Schedule or in the
     Transaction Documents, there are no outstanding securities of the Company
     or rights to acquire securities of the Company, including without
     limitation any options, warrants, rights (including conversion or
     preemptive rights and rights of first refusal), or agreements of any kind
     for the purchase or acquisition from the Company of any of its securities.

               (k) The Convertible Notes purchased on the Initial Closing Date
     by the Investors shall automatically convert into 136,476 shares of Initial
     Tranche Series B Preferred Stock immediately upon purchase pursuant to
     Section 6(c) of each Convertible Note. The other Convertible Notes issued
     by the Company prior to the Initial Closing Date shall automatically
     convert into 6,071,687 shares of Initial Tranche Series B Stock pursuant to
     Section 6(c) of each Convertible Note on the Initial Closing Date. The
     Warrants shall automatically be terminated and cancelled upon the
     Convertible Note Closing pursuant to Section 10(b) thereof. The exercise
     price of each Series A Preferred Stock Warrant and each Common Stock
     Warrant as set forth in the column marked "Strike Price" on Part 3.02(e) of
     the Disclosure Schedule is the currently effective exercise price for such
     security and has not been amended, modified, adjusted (including any
     adjustment pursuant to anti-dilution provisions) or otherwise changed.

               3.03 Subsidiaries and other Investments. Part 3.03 of the
Disclosure Schedule contains a true and complete list of each Subsidiary of the
Company and sets forth for each: (i) its name and jurisdiction of incorporation
or organization; (ii) its authorized capital stock or share capital; (iii) the
number of issued and outstanding shares of capital stock or share capital; and
(iv) the holder or holders of record of such shares. All of the issued and
outstanding membership interests of ORBCOMM LLC are owned of record and
beneficially by the Company, free and clear of all Encumbrances. Except as set
forth on Part 3.03 of the Disclosure Schedule, all of the issued and outstanding
shares of capital stock of each Subsidiary of ORBCOMM LLC are owned of record
and beneficially by ORBCOMM LLC, free and clear of

                                       15

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Convertible Note and Stock Purchase Agreement

all Encumbrances. Except as set forth on Part 3.03 of the Disclosure Schedule,
all of such shares are duly authorized, validly issued, fully paid and
non-assessable and were not issued in violation of, and are not subject to, any
preemptive rights. Except as disclosed in Part 3.03 of the Disclosure Schedule,
neither the Company nor any Subsidiary of the Company owns beneficially or
otherwise, directly or indirectly, any capital stock or other securities or
other ownership interest of any Person. Neither the Company nor any Subsidiary
of the Company has any obligation to provide any funds to or invest additional
capital in any Person in which the Company or any Subsidiary of the Company
holds capital stock.

               3.04 Due Authorization; Enforceability. The Company has all
requisite power and authority (corporate or otherwise) to execute, deliver and
perform this Agreement and each of the Transaction Documents to which it is a
party and to consummate the Transactions. The execution, delivery and
performance of this Agreement and the Transaction Documents and the consummation
of the Transactions by the Company have been duly authorized by all necessary or
appropriate action (corporate or otherwise) and no other proceedings (corporate
or otherwise) are necessary to authorize this Agreement or the Transaction
Documents or to consummate the Transaction. This Agreement and those Transaction
Documents executed or delivered on or prior to the date of this Agreement
constitute, and prior to the Initial Closing the remaining Transaction Documents
required to be executed after the date of this Agreement will constitute when
executed, the valid and legally binding obligations of the Company (to the
extent each is a party) (assuming that this Agreement and the Transaction
Documents constitute the valid and binding obligations of the Investors)
enforceable against the Company, in accordance with their terms, except as
enforceability may be limited by applicable (i) bankruptcy, insolvency,
reorganization, moratorium and similar laws of general applicability relating to
or affecting creditors' rights and (ii) Laws relating to the availability of
specific performance, injunctive relief or other equitable remedies.

               3.05 No Violation. Except for filings, Consents and Permits as
are set forth in Part 3.05 of the Disclosure Schedule or that have been obtained
prior to the Initial Closing, neither the execution, delivery or performance of
this Agreement by the Company, nor the consummation by the Company of the
Transactions, will, with or without the giving of notice or lapse of time or
both: (a) violate, conflict with or result in any breach of any provision of the
Certificate of Incorporation or By-laws or similar organizational documents of
the Company or any of its Subsidiaries; (b) require any Permit of any
Governmental Entity or violate, conflict with or constitute a default under any
of the terms or requirements of any Permit that is held by the Company or any of
its Subsidiaries; or (c) result in a violation or breach of, or constitute a
default (or give rise to any rights of termination, amendment, cancellation or
acceleration) under, any of the terms, conditions or provisions of any contract
or instrument to which the Company or any of its Subsidiaries is a party or any
of their respective assets is subject; (d) violate, conflict with or result in
any breach of any Law applicable to (i) the Company or any of its Subsidiaries;
or (e) create any Encumbrance on any assets of the Company or any of its
Subsidiaries, except, in the case of clauses (b), (c), (d) and (e) above, as
would not have a Material Adverse Effect.

               3.06 Financial Statements.

               (a) The Company will have delivered to the Investors prior to the
     date of this Agreement true and correct copies of (i) an audited
     consolidated balance sheet of

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Convertible Note and Stock Purchase Agreement

     ORBCOMM LLC and its Subsidiaries as of December 31, in each of the years
     2002 and 2003, together with consolidated statements of income, and changes
     in shareholders' equity, and cash flow for the years then ended, including,
     in each case, the notes thereto and the reports of independent certified
     public accountants, (ii) an audited consolidated balance sheet of the
     Company and its Subsidiaries as of December 31, 2004, together with
     consolidated statements of income, and changes in shareholders' equity and
     cash flow for the year then ended, including, in each case, the notes
     thereto and the reports of independent certified public accountants and
     (iii) an unaudited consolidated balance sheet of the Company and its
     Subsidiaries as of March 31, June 30, September 30 and November 30, 2005
     (other than, in the case of November 30, 2005, Satcom), together with
     consolidated statements of income and changes in shareholders' equity and
     cash flow, including notes thereto, if any for each such quarterly period
     (collectively, the "Financial Statements").

               (b) The Financial Statements were prepared from and in accordance
     with the Books and Records of the Company and its Subsidiaries and/or
     ORBCOMM LLC and its Subsidiaries, as the case may be, in accordance with
     GAAP consistently applied (except as indicated in the notes thereto) and
     fairly present the financial condition, results of operations, changes in
     shareholder's equity and cash flow of the Company and its Subsidiaries
     and/or ORBCOMM LLC and its Subsidiaries, as the case may be, in all
     material respects as of and for the periods indicated or as of the
     respective dates set forth therein, subject, in the case of interim
     financial statements, to normal and recurring year-end adjustments and, if
     applicable, the absence of notes thereto and, except in the case of all of
     the year ended audited Financial Statements, for the adjustments set forth
     in Part 3.06(b) of the Disclosure Schedule (together with the corresponding
     adjustments to the notes thereto) and, in the case of the interim financial
     statements, for such adjustments as may be necessary to apply adjustments
     of a substantially similar nature as are set forth in Part 3.06(b) of the
     Disclosure Schedule with respect to the year end audited Financial
     Statements to such interim financial statements and for the absence of
     consolidating Satcom International Group plc as of November 30, 2005. For
     purposes of delivery of this representation on the Subsequent Closing Date,
     "Financial Statements" shall be deemed to refer to (i) the audited
     consolidated balance sheet of the Company and its Subsidiaries as of
     December 31, 2006 and as of December 31, 2005, together with audited
     consolidated statements of income, and changes in shareholders' equity and
     cash flow for the years then ended, including, in each case, the notes
     thereto and the reports of independent certified public accountants and
     (ii) the unaudited consolidated balance sheet of the Company and its
     Subsidiaries dated as of March 31, June 30, September 30, and December 31,
     2006 together with consolidated statements of income and changes in
     shareholders' equity and cash flow, including notes thereto, if any for
     each such quarterly period.

               (c) As of the date of this Agreement and the Subsequent Closing
     Date, as applicable, the Company and its Subsidiaries do not have any
     Liabilities of a nature required by GAAP to be reflected on a balance sheet
     or described in the footnotes thereto that were not adequately reflected or
     reserved for in the Latest Balance Sheet, except (i) as set forth in the
     Disclosure Schedule, (ii) for current liabilities incurred in the ordinary
     course of business consistent with past practice since the date of the
     Latest Balance Sheet or (iii) which, individually or in the aggregate,
     would not reasonably be expected to have a Material Adverse Effect.

                                       17
<PAGE>

Convertible Note and Stock Purchase Agreement

               (d) The Company has delivered to the Investors true and correct
     copies of the statutory financial statements of Satcom for the year ended
     December 31, 2004 filed with the applicable Governmental Entity in the
     United Kingdom in the ordinary course of business.

               (e) On November 30, 2005, there were 111,362 billable subscriber
     communicators provisioned on the ORBCOMM system.

               3.07 Absence of Certain Changes. Except as set forth in Part 3.07
of the Disclosure Schedule or as expressly permitted by this Agreement or the
Transaction Documents, since the date of the Latest Balance Sheet, the Company
and its Subsidiaries have been operated only in the ordinary course of business
and the Company and its Subsidiaries have not suffered any Material Adverse
Effect, and no condition or event, change or development has occurred which,
individually or in the aggregate, would reasonably be expected to have a
Material Adverse Effect. As of the date of this Agreement and the Subsequent
Closing Date, as applicable, except (i) as set forth in the Disclosure Schedule,
(ii) as reflected or reserved against on the Latest Balance Sheet or (iii) for
current liabilities incurred in the ordinary course of business consistent with
past practice since the date of the Latest Balance Sheet, the Company has no
Liabilities that individually or in the aggregate, would reasonably be expected
to have a Material Adverse Effect.

               3.08 Litigation. None of the Company or any of its Subsidiaries
are subject to any Order that prevents any of them from entering into this
Agreement or consummating the Transactions, or that materially restricts the
right or ability of the Company or any of its Subsidiaries to carry on their
business as now conducted or proposed to be conducted. Except as set forth in
Part 3.08 of the Disclosure Schedule, none of the Company or any of its
Subsidiaries, or any officer or director of any such entities is a party to or
engaged in any Action, nor is there any Action, suit, proceeding, or
investigation pending or, to the knowledge of the Company or any of its
Subsidiaries, threatened against the Company or any of its Subsidiaries, or any
officer or director of any such entities, which (i) questions the validity of
this Agreement or any of the Transaction Documents, (ii) questions the right of
the Company or any officer or director of any such entities to enter into such
agreements, (iii) questions or restricts the ability of the Company, any
Subsidiary, or any officer or director of any such entities to consummate the
Transactions, or (iv) would reasonably be expected to result, either
individually or in the aggregate, in a Material Adverse Effect or in any
material impairment of the right or ability of the Company or any of its
Subsidiaries, taken as a whole, to carry on their business as now conducted or
proposed to be conducted. Except as set forth in Part 3.08 of the Disclosure
Schedule, none of the Company, any Subsidiary of the Company, or any officer or
director of any such entities is a party to, named in or subject to, and none of
their assets are bound by, any order, writ, injunction, judgment, or decree of
any court, government, agency, or instrumentality. Except as set forth in Part
3.08 of the Disclosure Schedule, there is no action, suit, proceeding or
investigation initiated by the Company or any Subsidiary of the Company or any
officer or director of any such entities currently pending or that the Company
or any of its Subsidiaries currently intends to initiate.

               3.09 Compliance with Laws; Permits.

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<PAGE>

Convertible Note and Stock Purchase Agreement

               (a) Except as set forth in Part 3.09(a) of the Disclosure
     Schedule, each of the Company and its Subsidiaries is, and has been, in
     compliance in all material respects with all Laws and Orders applicable to
     them or to the conduct or operation of the Business or the ownership or use
     of any of their respective assets, except for such violations or
     non-compliance as would not individually or in the aggregate, reasonably be
     expected to have a Material Adverse Effect. Except as set forth on Part
     3.09(a) of the Disclosure Schedule, no investigation or review by any
     Governmental Entity with respect to the Company or any of its Subsidiaries
     is pending or, to the knowledge of the Company or any of its Subsidiaries,
     threatened, nor has any Governmental Entity indicated an intention to
     conduct any such investigation or review.

               (b) The Company and each of its Subsidiaries has or will have as
     of the Initial Closing and the Subsequent Closing, as applicable, all
     Permits which are required in order to conduct the Business as presently
     conducted and as it will be conducted immediately following the closing and
     to own and operate their respective properties and assets, except for such
     Permits which if not obtained or held, would not, individually or in the
     aggregate, reasonably be expected to have a Material Adverse Effect. Part
     3.09(b) of the Disclosure Schedule contains a complete and accurate list of
     material Permits held by the Company and its Subsidiaries. The Company and
     each of its Subsidiaries is in compliance with each such Permit, except
     where the failure to comply would not, individually or in the aggregate,
     reasonably be expected to have a Material Adverse Effect.

               (c) The Company is not required to register any class of its
     securities under or pursuant to the Securities Exchange Act.

               3.10 Environmental Matters. The Company and each of its
Subsidiaries are, in compliance with, and are not in violation of or liable
under, any Environmental Law, including in connection with the acquisition,
storage, handling, transportation, processing, use, disposal or recycling of any
goods or materials, whether as raw materials, work-in-process, finished goods or
otherwise, except as would not reasonably be expected to have a Material Adverse
Effect.

               3.11 Taxes.

               (a) Except as set forth on Part 3.11(a) of the Disclosure
     Schedule, all federal, state, local and foreign tax returns required to be
     filed by or on behalf of the Company and its Subsidiaries or any
     consolidated, combined, affiliated or unitary group of which the Company
     and its Subsidiaries are or have ever been a member (including without
     limitation any information returns or other statements relating to Taxes)
     have been timely filed or requests for extensions have been timely filed
     and any such extensions have been granted and have not expired. Except as
     set forth on Part 3.11(a) of the Disclosure Schedule, all Taxes with
     respect to taxable periods covered by such tax returns and all other
     material Taxes for which the Company and its Subsidiaries otherwise liable
     that are due have been paid in full (and if applicable properly withheld),
     and adequate reserves have been established in accordance with GAAP with
     respect to all unpaid Taxes that are not yet due and payable.

                                       19

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Convertible Note and Stock Purchase Agreement

               (b) Except as set forth on Part 3.11(b) of the Disclosure
     Schedule, all Taxes with respect to any completed and settled audit,
     examination or deficiency litigation with any taxing authority for which
     the Company and its Subsidiaries are or might otherwise be liable have been
     paid in full or adequate reserves have been established in accordance with
     GAAP. Except as set forth on Part 3.11(b) of the Disclosure Schedule, there
     is no audit, examination, deficiency or refund Action pending or, to the
     knowledge of the Company or any of its Subsidiaries, threatened with
     respect to any Taxes and no taxing authority has given written notice of
     the commencement of any audit, examination or deficiency litigation with
     respect to any Taxes.

               (c) Except as set forth on Part 3.11(c) of the Disclosure
     Schedule, no Encumbrances for Taxes exist with respect to any of the assets
     of the Company or its Subsidiaries, except for item (ii) of the definition
     of Permitted Encumbrances.

               (d) There is no tax sharing agreement or other agreement, order
     or obligation, written or verbal, binding upon the Company or any of its
     Subsidiaries relating to the payment of federal or state income,
     withholding or other taxes, including taxes of a foreign jurisdiction.

               3.12 Employee Benefit and Labor Matters.

               (a) Neither the Company nor any of its Subsidiaries is a party to
     any contract regarding collective bargaining or other contract with any
     labor union or association representing any employee employed by the
     Company or any of its Subsidiaries or otherwise engaged in the Business,
     nor does any labor union or collective bargaining agent represent any
     employee employed by the Company or any of its Subsidiaries or otherwise
     engaged in the Business. No contract regarding collective bargaining has
     been requested by, or is under discussion between management of the Company
     or its Subsidiaries (or any management group or association of which the
     Company or its Subsidiaries is a member or otherwise a participant) and,
     any group of employees employed by the Company or its Subsidiaries or
     otherwise engaged in the Business, nor are there any representation
     proceedings or petitions seeking a representation proceeding presently
     pending against the Company or its Subsidiaries with the National Labor
     Relations Board or any other labor relations tribunal, nor are there any
     other current activities known to the Company or any of its Subsidiaries to
     organize any employees of the Company or its Subsidiaries into a collective
     bargaining unit. Except as set forth on Part 3.12(a) of the Disclosure
     Schedule, there is no unfair labor practice charge or complaint pending or,
     to the knowledge of the Company or its Subsidiaries, threatened. Except as
     set forth on Part 3.12(a) of the Disclosure Schedule, since April 23, 2001,
     there has been no labor strike, slow-down, work stoppage, arbitration,
     grievances or other work-related dispute involving the Company or any of
     its Subsidiaries or otherwise related to the Business, and no such dispute
     is now pending or, to the knowledge of the Company or any of its
     Subsidiaries, threatened against the Company or any of its Subsidiaries.

               (b) Part 3.12(b) of the Disclosure Schedule sets forth a true,
     accurate and complete list of each pension, retirement, savings, profit
     sharing, deferred compensation, medical, vision, dental and other health
     plan, disability, accident and life insurance plan,

                                       20

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Convertible Note and Stock Purchase Agreement

     bonus, stock option, stock purchase, incentive and special compensation and
     other plan and each other employee benefit plan, program, and contract
     (whether written or oral) which is related to the Business and to which the
     Company or any of its Subsidiaries or any of their respective Affiliates
     contributes or is required to contribute, or which the Company or any of
     its Subsidiaries, or any of their respective Affiliates, sponsors,
     maintains or administers or which is otherwise applicable to employees or
     categories of employees of the Company or any of its Subsidiaries
     (hereinafter referred to collectively as the "Plans"). Except as set forth
     on Part 3.12(b) of the Disclosure Schedule, to the knowledge of the Company
     or any of its Subsidiaries, the Plans have been in compliance in all
     material respects with the requirements of ERISA and the Code.

               (c) Except as set forth on Part 3.12(c) of the Disclosure
     Schedule, none of the Plans is subject to Title IV of ERISA or Section 412
     of the Code.

               (d) None of the Company, any of its Subsidiaries or any of their
     Affiliates has ever sponsored, maintained, participated or contributed to
     or incurred any liability under any "multiemployer plan" (as defined in
     Section 4001(a)(3) of ERISA or a "multiple employer plan" as defined in
     Section 4.13(c) of the Code).

               (e) Except as required under Section 4980B of the Code, none of
     the Company or any of its Subsidiaries or any of their respective
     Affiliates has any obligation to provide post-retirement health benefits to
     employees of the Company or any of its Subsidiaries.

               (f) Part 3.12(f) of the Disclosure Schedule sets forth a true,
     accurate and complete list of each employment, consulting, termination,
     retention and severance contract. All such contracts are valid and
     enforceable, and no employee is in default in any material respect under
     any thereof. Except as set forth on Part 3.12(f) of the Disclosure
     Schedule, neither the execution, delivery or performance of this Agreement
     or the Transaction Documents nor the consummation of the Transactions will
     result in any obligation of the Company or any of its Subsidiaries to pay
     any employees of severance pay, or termination, retention or other
     benefits.

               3.13 Real Property Owned or Leased; Title to Assets.

               (a) Part 3.13(a) of the Disclosure Schedule contains a complete
     and accurate list of all real property owned by the Company and its
     Subsidiaries (the "Owned Property") and all real property leased,
     subleased, occupied or used by the Company and its Subsidiaries (the
     "Leased Property" and collectively with the Owned Property the "Real
     Property"), indicating in each case, the ownership, street address and use
     of each such property. The Company has previously delivered or made
     available to the Investors, true and complete copies of all deeds for the
     Owned Property.

               (b) Except as set forth in Part 3.13(b) of the Disclosure
     Schedule, and to the knowledge of the Company and its Subsidiaries, the
     Company and its Subsidiaries have good and marketable title to all of the
     Owned Property, free and clear of all Encumbrances, and are not subject to
     any rights of way, building use restrictions, exceptions, variances,
     reservations or limitations of any nature, except (i) liens for Taxes not
     yet due or payable,

                                       21

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Convertible Note and Stock Purchase Agreement

     (ii) inchoate mechanic and materialmen liens for construction in progress,
     and (iii) inchoate workmen's, repairmen's, warehousemen's and carrier's
     liens arising in the ordinary course of business and minor imperfections of
     title which do not, individually or in the aggregate, materially detract
     from the value or impair the use, occupancy, value or marketability of such
     Owned Property or impair the operations of the Company and its
     Subsidiaries.

               3.14 Sufficiency and Condition of Assets.

               (a) The properties, assets and rights owned or leased by the
     Company and its Subsidiaries constitute all properties (whether real or
     personal or tangible or intangible), assets and rights necessary for the
     Company and its Subsidiaries to conduct the Business after the Closing as
     it is presently being conducted and as it will be conducted on the Closing
     Date.

               (b) The Company and its Subsidiaries have good and marketable
     title to, or a valid leasehold interest in, all of their respective
     personal property, free and clear of all Encumbrances, other than Permitted
     Encumbrances except as set forth in Part 3.14(b) of the Disclosure
     Schedule. The Facilities owned or leased by the Company and its
     Subsidiaries are in good operating condition and repair and free from any
     material defects, reasonable wear and tear excepted, and are suitable for
     the uses for which they are being used and are performing the functions for
     which they were intended.

               (c) Part 3.14(c) of the Disclosure Schedule contains a list of
     the Company's material tangible assets.

               (d) Part 3.14(d) of the Disclosure Schedule contains a list of
     (i) the location of each ground earth station (consisting of land,
     building, fixtures, improvements and telemetry, tracking and control
     equipment) and (ii) the number of satellites owned or leased by the Company
     or any Subsidiary (collectively referred to as the "Satellite and Ground
     Earth Station Assets"). Except as set forth in Part 3.14 of the Disclosure
     Schedule, the improvements to the Satellite and Ground Earth Station Assets
     and all material components used in connection therewith are in good
     operating condition and repair, reasonable wear and tear excepted, and are
     suitable for their intended purposes taking into account the satellite
     constellation as a whole and its ability to provide coverage and service to
     the Company, its customers and its business.

               3.15 Material Contracts.

               (a) Part 3.15(a) of the Disclosure Schedule identifies all of the
     following written agreements, contracts, obligations or commitments to
     which the Company or any of its Subsidiaries is a party or by which any of
     their respective properties or assets is bound or affected:

               (i) all agreements for the employment or retention of any
          officer, employee or consultant which is not terminable by, the
          Company or any of its Subsidiaries on less than 60 days' notice
          without penalty or which provides for severance or other termination
          payment to any such officer, employee or consultant if terminated
          (except as imposed by Law);

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Convertible Note and Stock Purchase Agreement

               (ii) all lease agreements pursuant to which the Company or any of
          its Subsidiaries is the lessee of, or holds or uses, or is the lessor
          of, or makes available for use, (A) any Real Property or (B) any
          machinery, equipment, vehicle or other tangible personal property,
          which has an aggregate annual future liability or receivable, as the
          case may be, in excess of $25,000 and is not terminable by the Company
          or any of its Subsidiaries by less than 60 days' notice without
          penalty;

               (iii) all agreements for the purchase by the Company or any of
          its Subsidiaries of inventory, materials, equipment, supplies or
          services (including any obligation to "take or pay" for such purchases
          or sales) which call for an aggregate consideration of more than
          $250,000 during the twelve month period ended December 31, 2005, or
          more than $500,000 over the remaining term of such contract or group
          of related contracts;

               (iv) all value added reseller agreements entered into by the
          Company or any of its Subsidiaries;

               (v) all service license agreements and country representative
          agreements entered into by the Company or any of its Subsidiaries;

               (vi) all agreements (other than those provided for in clause (iv)
          and (v) above) for the sale by the Company or any of its Subsidiaries
          or services or pursuant to which the Company or any of its
          Subsidiaries grants to any other Person a right or license to market
          or sell the services of the Company or any Subsidiary;

               (vii) all agreements relating in whole or in part to Intellectual
          Property (including any option, license or other contract under which
          the Company or any of its Subsidiaries is licensee or licensor of any
          such Intellectual Property and contracts with current or former
          employees, consultants or contractors regarding the appropriation or
          nondisclosure of any Intellectual Property) other than commercial
          software and hardware license agreements entered into in the ordinary
          course of business;

               (viii) all agreements evidencing indebtedness for borrowed money
          in an amount in excess of $50,000 and all agreements constituting
          guarantee or indemnities of obligations of third parties;

               (ix) all agreements providing for or containing any mortgage,
          pledge, security agreement, deed of trust, financing lease or similar
          instrument granting an Encumbrance upon any Real Property or personal
          property owned or used by the Company or any of its Subsidiaries;

               (x) all agreements evidencing any loans made to any Persons or to
          any officer, director or employee;

                                       23

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Convertible Note and Stock Purchase Agreement

               (xi) all stockholder agreements, joint venture agreements, joint
          marketing agreements, research and development agreements, and any
          other similar contracts;

               (xii) all agreements between or among the Company or any of its
          Subsidiaries, on the one hand and any of their Affiliates, on the
          other hand;

               (xiii) all agreements containing confidentiality or
          non-disclosure obligations to or from the Company or any of its
          Subsidiaries other than those entered into in the ordinary course of
          business;

               (xiv) all agreements for the purchase or sale (through the
          acquisition of shares, assets or by merger, reorganization, or
          otherwise) of any business, corporation, partnership, joint venture,
          association or other business organization or any division, material
          assets, operating unit or product line thereof;

               (xv) all agreements which limit or purport to limit the ability
          of the Company or any of its Subsidiaries to compete in any line of
          business or with any Person or in any geographic area;

               (xvi) all agreements with any Governmental Entity;

               (xvii) all agreements containing any restrictions with respect to
          payment of dividends or any other distributions in respect of the
          capital stock of the Company or any of its Subsidiaries;

               (xviii) all agreements providing for a power of attorney to or
          from any Person;

               (xix) all open purchase orders in excess of ten thousand dollars
          ($10,000) for modems as of and since the Latest Balance Sheet; and

               (xx) all agreements which are otherwise material and is not
          described in any of the categories specified in this Section.

          Each item set forth or required to be set forth on Part 3.15(a) of the
Disclosure Schedule is referred to herein as a "Material Contract."

               (b) Each Material Contract is in full force and effect and is
     legal, valid, binding and enforceable in accordance with its terms, except
     as enforceability may be limited by (i) applicable bankruptcy, insolvency,
     reorganization, moratorium and similar laws of general application relating
     to or affecting creditors' rights and (ii) laws relating to the
     availability of specific performance, injunctive relief or other equitable
     remedies. Neither the Company nor any of its Subsidiaries is in breach or
     default of or, to the knowledge of the Company, alleged to be in breach or
     default under any Material Contract except for such breaches and defaults
     that, individually or in the aggregate would not reasonably be expected to
     have a Material Adverse Effect. Except as set forth in Part 3.15(b) of the
     Disclosure Schedule, to the knowledge of the Company and its Subsidiaries,
     the other parties thereto

                                       24

<PAGE>

Convertible Note and Stock Purchase Agreement

     have complied in all material respects with the obligations required to be
     performed by them thereunder. Except as set forth in Part 3.15(b) of the
     Disclosure Schedule, to the knowledge of the Company and its Subsidiaries,
     no event has occurred or circumstance exists that (with or without lapse of
     time or the giving of notice) may contravene, conflict with or result in a
     violation or breach of or give the Company or any of its Subsidiaries or
     any other Person the right to declare a default or exercise any remedy
     under or to accelerate the maturity of or to cancel, terminate or modify,
     any Material Contract, except for such as, individually or in the
     aggregate, would not reasonably be expected to have a Material Adverse
     Effect. The Company and its Subsidiaries has previously delivered or made
     available to the Investors, true and complete copies of all Material
     Contracts.

               (c) The Company is not a party to any written agreement, contract
     obligation or commitment except for this Agreement, the Transaction
     Documents, the Material Contracts and such other agreements, contracts,
     obligations or commitments which are not material to the business
     operations or prospects of the Company.

               3.16 Insurance. Part 3.16 of the Disclosure Schedule contains a
true and complete list of all policies to which the Company and its Subsidiaries
are a party or which provides insurance coverage to or for the benefit of or
with respect to the Company and its Subsidiaries or any director or employee of
the Company and its Subsidiaries (the "Insurance Policies"). The Company has
previously delivered to the Investor, true and complete copies of all Insurance
Policies.

               3.17 Intellectual Property.

               (a) Part 3.17(a) of the Disclosure Schedule contains a true and
     complete list of all material registrations and applications for
     Intellectual Property owned by the Company or its Subsidiaries. In each
     case, the registration number, date of issuance or registration, and the
     title of such property is set forth in Part 3.17(a) of the Disclosure
     Schedule. The property referenced in Part 3.17(a) of the Disclosure
     Schedule, together with all designs, methods, inventions and know-how
     related thereto, and all trademarks, tradenames, service marks and
     copyrights owned by the Company or its Subsidiaries which have not been
     registered, is referred to as the "Company's Intellectual Property." Part
     3.17(a) of the Disclosure Schedule lists all material licenses held by the
     Company or its Subsidiaries authorizing the use by the Company or its
     Subsidiaries of computer software, patents, trademarks, servicemarks,
     tradenames, copyrights, trade secrets or other items of intellectual
     property used or useful to the Company's business (other than commercially
     available over-the-counter "shrinkwrap" or "clickwrap" software). Part
     3.17(a) of the Disclosure Schedule lists any material licenses, purchase
     options, or other interests held by any Person in the Company's
     Intellectual Property. There are no outstanding material options or
     agreements of any kind held or entered into by the Company or any of its
     Subsidiaries (other than the licenses listed in Part 3.17(a) of the
     Disclosure Schedule) with respect to the patents, trademarks, service
     marks, trade names, copyrights, trade secrets, licenses, information,
     proprietary rights and processes of any other person or entity.

               (b) Except as set forth in Part 3.17(b) of the Disclosure
     Schedule, all of the Intellectual Property listed on Part 3.17(a) of the
     Disclosure Schedule is currently in

                                       25

<PAGE>

Convertible Note and Stock Purchase Agreement

     compliance with Law in all material respects (including payment of filing,
     examination, and maintenance fees and proofs of working or use), and is not
     subject to any maintenance fees or Taxes or actions falling due within
     ninety days after the Initial Closing Date or the Subsequent Closing Date,
     as applicable.

               (c) Except as set forth in Part 3.17(c) of the Disclosure
     Schedule, no Intellectual Property owned by the Company or any of its
     Subsidiaries or in which the Company or any of its Subsidiaries has any
     rights has been or is now involved in any interference, reissue,
     reexamination, or opposition proceeding.

               (d) Except as set forth in Part 3.17(d) of the Disclosure
     Schedule, to the knowledge of Company and its Subsidiaries, no Intellectual
     Property owned by the Company or any of its Subsidiaries is being infringed
     by any third party. Except as set forth in Part 3.17(d) of the Disclosure
     Schedule, none of the Company or any of its Subsidiaries has received
     written notice that any products manufactured and sold, or any process or
     know-how used, by the Company and its Subsidiaries infringes any
     Intellectual Property rights or other proprietary right of any other
     Person.

               (e) The Company and its Subsidiaries have taken reasonable
     security measures to protect the secrecy, confidentiality, and value of its
     Intellectual Property.

               3.18 Customers. Part 3.18 of the Disclosure Schedule sets forth a
list of the twenty most significant customers in terms of revenues to the
Company and its Subsidiaries during the twelve month period ended September 30,
2005, showing the approximate total revenues of the Company and its Subsidiaries
from each customer during the period then ended. Except to the extent set forth
in Part 3.18 of the Disclosure Schedule, none of the Company or any of its
Subsidiaries have received any notice or have any reason to believe that any
significant customer of the Company or its Subsidiaries has ceased, or will
cease, to use the products, equipment, goods or services of the Company or its
Subsidiaries, or has substantially reduced or will substantially reduce, the use
of such products, equipment, goods or services at any time. No purchase order
listed on Part 3.15(a) of the Disclosure Schedule has been cancelled or reduced,
and the Company and its Subsidiaries, to the knowledge of the Company, have not
been notified of any reason that any purchaser will not fully perform and pay
the purchase price pursuant thereto.

               3.19 Disclosure.

               (a) No representation or warranty of the Company in this
     Agreement and no statement contained in any Transaction Document contains
     any untrue statement of a material fact or omits to state a material fact
     necessary to make the statements made herein or therein, in light of the
     circumstances under which they were made, not misleading.

               (b) No notice given pursuant to Section 5.02 will contain any
     untrue statement of a material fact or omit to state a material fact
     necessary to make the statements made therein, in light of the
     circumstances under which they were made, not misleading.

               3.20 Transactions With Affiliates. Except as set forth on Part
3.20 of the Disclosure Schedule or as set forth in the notes to the Financial
Statements, there are no

                                       26

<PAGE>

Convertible Note and Stock Purchase Agreement

contracts, agreements or commitments between (a) the Company or (b) any of its
Subsidiaries, on the one hand, and any other respective Affiliates, on the other
hand. Except as set forth on Part 3.20 of the Disclosure Schedule or as set
forth in the Notes to the Financial Statements, since January 1, 2004, all
transactions and business dealings between the Company and its Subsidiaries, on
the one hand, and any of their Affiliates, on the other hand, have been on an
arms-length basis and on substantially prevailing market terms. For purposes of
this Section 3.20, the term "Affiliates" shall be deemed to include (but not be
limited to) any company in which any member, former member, executive officer or
director of the Company or any Subsidiary of the Company holds a five percent
(5%) or greater equity interest, individually or in combination with other
executive officers or directors of the Company.

               3.21 Brokers or Finders. Except for UBS Securities LLC, L&L
Capital Partners LLC and Certified Advisory Corp., neither the Company nor any
of its Subsidiaries nor any of its or their respective Representatives has
incurred any Liability payable by the Company or any of its Subsidiaries for
brokerage or finders' fees or agents' commissions or other similar payment in
connection with the negotiation, preparation, delivery or execution of this
Agreement or the consummation of the Transactions, nor is there any basis, to
the knowledge of the Company, for any such fee, commission or similar payment to
be claimed by any Person.

               3.22 Registration Rights. Except as provided in the Registration
Rights Agreement, the Company is not under any obligation to and has not granted
any rights to register under the Securities Act any of its presently outstanding
securities or any of its securities that may subsequently be issued.

               3.23 Employee Matters. As of the date hereof, the Company employs
79 full-time employees and zero part-time employees and engages seven
consultants or independent contractors. Part 3.23 of the Disclosure Schedule
sets forth a detailed description of all compensation, including salary, bonus,
and deferred compensation paid or payable for each officer, employee, consultant
and independent contractor of the Company who received compensation in excess of
$200,000 for the fiscal year ended December 31, 2004 or is anticipated to
receive compensation in excess of $200,000 for the fiscal year ending December
31, 2005.

               3.24 Side Letters. Except as set forth on Part 3.24 of the
Disclosure Schedule and other than the Transaction Documents, neither the
Company, any of its Subsidiaries or any of their Affiliates has any written
understandings, arrangements, or agreements with any stockholder of the Company.

               3.25 FCC/Regulatory Matters.

               (a) The Company and its Subsidiaries have all licenses, permits,
     certificates, franchises, consents, waivers, registrations or other
     regulatory authorizations from each Governmental Entity that regulates
     telecommunications in each applicable jurisdiction, including without
     limitation, (i) the appropriate foreign Governmental Entities (together
     with any renewals, extensions, or modifications thereof and any additions
     thereto made as of the Closing Date, the "Foreign Licenses"); and (ii) the
     FCC (together with any renewals, extensions or modifications thereof and
     any additions thereto made as of the Closing Date, the "FCC Licenses") in
     each case that are required for the conduct of the

                                       27

<PAGE>

Convertible Note and Stock Purchase Agreement

     business of the Company and its Subsidiaries as presently conducted, except
     for Communications Licenses which if not obtained or held, would not,
     individually or in the aggregate, reasonably be expected to have a Material
     Adverse Effect. Authorizations held by the Company's or any of its
     Subsidiaries' Regional Licensees, Country Representatives, Subscriber
     Communicator Manufacturers, U.S. Value Added Resellers, or International
     Value Added Resellers are referred to as "Third Party Licenses." The FCC
     Licenses, Foreign Licenses and Third Party Licenses are hereafter
     collectively referred to as the "Communications Licenses." All of the
     Communications Licenses held by the Company and any Subsidiary are set
     forth in Schedule Part 3.09(b).

               (b) Each of the FCC Licenses and Foreign Licenses, and, to the
     knowledge of the Company, the Third Party Licenses, was duly issued, is
     valid and in full force and effect, has not been suspended, canceled,
     revoked or modified in any materially adverse manner and is not subject to
     conditions or requirements that are not generally imposed on such
     authorizations.

               (c) Each holder of an FCC License and Foreign License and, to the
     knowledge of the Company, a Third Party License, has operated in compliance
     with all terms thereof; and each holder of a Communications License is in
     compliance with, and the conduct of its business has been and is in
     compliance with, the Communications Act and any applicable non-U.S.
     regulations, and each such holder has filed all registrations and reports
     and paid all required fees, including any renewal applications, required by
     the Communications Act, any non-U.S. laws or regulations, except for such
     noncompliance which would not, individually or in the aggregate, reasonably
     be expected to have a Material Adverse Effect.

               (d) There is no pending or, to the knowledge of the Company,
     threatened action by or before the FCC or any foreign Governmental Entity
     to revoke, cancel, suspend, modify or refuse to renew any of the FCC
     Licenses or Foreign Licenses, or, to the knowledge of the Company (without
     any obligation to make a present inquiry or investigation), any of the
     Third Party Licenses, and there is not now issued, outstanding or, to the
     knowledge of the Company, threatened, any notice by the FCC or any foreign
     Governmental Entity of any violation or complaint, or any application,
     complaint, or proceeding (other than applications, proceedings, or
     complaints that generally affect the Company's industry as a whole)
     relating to the business or operations of the Company or any Subsidiary or,
     to the knowledge of the Company, the business or operations of any holder
     of a Third Party License.

               (e) No event has occurred which permits the revocation or
     termination of any material FCC License or Foreign License or the
     imposition of any restriction thereon, or that would prevent any FCC
     License or Foreign License from being renewed on a routine basis or in the
     ordinary course.

               (f) The execution, delivery and performance of this Agreement and
     the other Transaction Documents, the consummation of the transactions
     contemplated thereby, and the issuance and delivery of the Convertible
     Notes and the Shares at the Initial Closing and the Subsequent Closing do
     not require any registration, filing, application or notice by the Company
     to the FCC or any foreign Governmental Entity, or any transfer, consent,

                                       28

<PAGE>

Convertible Note and Stock Purchase Agreement

     approval, audit, qualification, waiver or other action of any kind by the
     FCC or any foreign Governmental Entity, except that in the subsequent
     applications filed with the FCC it may be necessary to disclose any
     shareholders owning of record or voting ten (10) percent or more of the
     voting stock of the Company.

               (g) The issuance and sale of the Convertible Notes and the Shares
     on the date hereof by the Company and the compliance by the Company with
     all of the provisions of this Agreement and the consummation of the
     transactions contemplated thereby, do not and will not result in any
     violation of the provisions of (a) the Communications Act or (b) any order
     or decree of the FCC.

               (h) Part 3.25(h) of the Disclosure Schedule contains a summary of
     the status of frequency registration at the International
     Telecommunications Union, including the frequency bands covered and any
     system that may claim priority for any frequency bands in use by the
     Company or any Subsidiary. To the knowledge of the Company, no person or
     entity has asserted that it has rights to operate a spacecraft in a manner
     that would result in interference with respect to any satellite operated by
     the Company or any Subsidiary or any satellite for which the Company or any
     Subsidiary has applied for a Communications License. To the knowledge of
     the Company, there are no asserted disputes with any third party
     (including, but not limited to, the FCC or any foreign Governmental Entity)
     with respect to the Company or any Subsidiary's continued ability to
     utilize any satellite in the manner that such satellite has been used in
     connection with the business of the Company and any Subsidiary to date.

               3.26 ITAR Matters.

               (a) ORBCOMM LLC's ITAR Registration, identified in Part 3.26 if
     the Disclosure Schedule, is presently in full force and effect in
     accordance with 22 C.F.R. Section 122, with the next renewal submission due
     on or before June 30, 2006;

               (b) The Company is the holder of 4 approved and active ITAR
     export authorizations, one approved but inactive ITAR export authorization
     and have now pending 2 additional export authorization requests, as
     identified in Part 3.26 of the Disclosure Schedules;

               (c) The ORBCOMM LLC ITAR Registration and the ORBCOMM LLC ITAR
     authorization and pending ITAR submissions listed in Part 3.26(a) of the
     Disclosure Schedule constitute the only licenses, permits, and
     authorizations presently required under ITAR to facilitate ORBCOMM's
     conduct of business, as such business has been conducted to date, other
     than such licenses, permits and authorizations which if not obtained or
     held, would not, individually or in the aggregate, reasonably be expected
     to have a Material Adverse Effect;

               (d) There is no proceeding, complaint or investigation against
     the Company or any of its Subsidiaries with respect to the Company's or any
     of its Subsidiary's ITAR compliance, pending or overtly threatened in
     writing by or before the Department of State Office of Defense Trade
     Controls, other than proceedings affecting the satellite industry

                                       29

<PAGE>

Convertible Note and Stock Purchase Agreement

     generally, which, if determined adversely to the Company or any of its
     Subsidiaries could reasonably be expected to have a Material Adverse
     Effect; and

               (e) The execution, delivery and performance this Agreement and
     the other Transaction Documents, the consummation of the transactions
     contemplated thereby, and the issuance and delivery of the Convertible
     Notes and the Shares at the Initial Closing and the Subsequent Closing does
     not violate any applicable provision of ITAR.

               3.27 Minute Books. The minute books of the Company made available
to the Investors or their Representatives contain true and complete copies of
(i) minutes of all formal meetings of directors and stockholders since January
1, 2004 (and reflect all resolutions adopted at such meetings referred to in
such minutes accurately in all material respects) and (ii) all resolutions of
stockholders or directors adopted by written consent.

Except as expressly set forth herein or in the other Transaction Documents, the
Company and ORBCOMM LLC makes no representation or warranty, express or implied,
at equity, common law, by statute or otherwise.

                                   ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF THE INVESTORS

               Each Investor hereby severally, and not jointly, represents and
warrants to the Company as follows:

               4.01 Organization and Good Standing. Such Investor is a
corporation or entity, duly incorporated or formed, validly existing and in good
standing under the laws of its jurisdiction of incorporation or formation and
has all requisite power and authority (corporate or otherwise) to conduct its
business in the manner in which it is presently being conducted, except where
the failure to be so organized, existing, and in good standing or to have such
power or authority would not prevent the consummation of the Transactions by
such Investor.

               4.02 Due Authorization; Enforceability. Such Investor has all
requisite power and authority (corporate or otherwise) to execute, deliver and
perform, this Agreement and the Transaction Documents to which it is a party and
to consummate the Transactions. The execution, delivery and performance of this
Agreement and the Transaction Documents to which it is a party and the
consummation of the Transactions by such Investor has been duly authorized by
all necessary or appropriate action and no other proceedings are necessary to
authorize this Agreement or the Transaction Documents to which it is a party or
to consummate the Transactions. This Agreement and those Transaction Documents
to which it is a party executed or delivered on or prior to the date of this
Agreement constitute, and prior to the Initial Closing, the remaining
Transaction Documents to which it is a party required to be executed after the
date of this Agreement will constitute when executed, the valid and legally
binding obligations of the Investor (assuming that this Agreement and the
Transaction Documents to which it is a party constitute the valid and binding
obligations of the Investor), enforceable against such Investor in accordance
with their terms except as enforceability may be limited by applicable (i)
bankruptcy, insolvency, reorganization, moratorium and similar laws of general
applicability relating to or

                                       30

<PAGE>

Convertible Note and Stock Purchase Agreement

affecting creditors' rights and (ii) Laws relating to the availability of
specific performance, injunctive relief or other equitable remedies.

               4.03 No Violation. Except for filings, Consents and Permits as
are set forth in Part 4.03 of the Disclosure Schedule, neither the execution,
delivery or performance of this Agreement by the Investor nor the consummation
of the Transactions will, with or without the giving of notice or lapse of time
or both (i) violate, conflict with or result in any breach of any provision of
the Certificate of Incorporation or By-laws or similar organizational documents
of such Investor; (ii) require any Permit or Consent of any Governmental Entity
to which the Investor is subject (except where the failure to obtain such
Permits or Consents would not prevent the consummation of the Transactions);
(iii) result in a violation or breach of, or constitute a default (or give rise
to any right of termination, amendment, cancellation or acceleration) under any
contract of such Investor or to any other obligation of such Investor; (iv)
violate, conflict with or result in any breach of any Order or Law applicable to
such Investor, except, in the cases of subparagraphs (iii) and (iv) for such
violations, breaches and defaults which do not, individually or in the
aggregate, prevent the consummation of the Transactions by such Investor.

               4.04 Investment Intent.

               (a) Such Investor is acquiring the Convertible Notes and Shares
     solely for its own account for investment, and not with a view to
     distribution, resale, subdivision or fractionalization thereof in violation
     of applicable securities laws, and such Investor has no present plans to
     enter into any contract, undertaking, agreement or arrangement for the
     distribution, resale, subdivision or fractionalization of the Convertible
     Notes and Shares.

               (b) Such Investor understands that the Convertible Notes and
     Shares are being offered and sold pursuant to an exemption from
     registration provided by Section 4(2) of the Securities Act and the
     provisions of Rule 506 of Regulation D thereunder. Such Investor (i) is an
     "accredited investor" as that term is defined in Rule 501(a) of Regulation
     D under the Securities Act; (ii) has the financial ability to bear the
     economic risk of such Investor's investment in the Company (including the
     complete loss of its investment); (iii) has adequate means of providing for
     its current needs and contingencies and has no need for liquidity with
     respect to its investment in the Company and (iv) has not taken any action
     which would be encountered with or prevent compliance with the requirements
     of Rule 506 under Regulation D.

               (c) To the knowledge of such Investor, the Company has made
     available to such Investor and/or its attorney and/or its accountant and/or
     its representative all agreements, documents, books, records and reports
     that it or they have requested relating to an investment in the Company.
     Such Investor and/or its attorney and/or its accountant and/or its
     representative all have had an opportunity to ask questions of and receive
     answers from the Company, or a person or persons acting on its behalf,
     concerning the terms and conditions of this investment. The foregoing,
     however, does not limit or modify the representations or warranties of the
     Company expressly set forth in Section 3 of this Agreement (as modified by
     the Disclosure Schedule) or the right of the Investors to rely thereon.

                                       31

<PAGE>

Convertible Note and Stock Purchase Agreement

               4.05 Brokers or Finders. Neither such Investors nor any of its
Representatives have incurred any Liability for brokerage or finders' fees or
agents' commissions or other similar payment in connection with the negotiation,
preparation, delivery or execution of this Agreement or the consummation of the
Transaction, nor is there any basis, to the knowledge of such Investor, for any
such fee, commission or similar payment to be claimed by any Person.

               4.06 Liability to Co-Investors. Such Investor acknowledges that
it is not relying upon any other Investor in making its investment or decision
to invest in the Company. Such Investor has had the opportunity to request and
obtain from the Company all the information such Investor considers necessary or
appropriate for deciding whether to purchase the Shares. No Investor, nor the
respective controlling persons, officers, directors, partners, agents or
employees of any such Investor, shall be liable to any other Investor in
connection with the information shared among Investors in connection with the
transactions described herein.

                                   ARTICLE V

                            COVENANTS OF THE COMPANY

               5.01 Consents and Approvals. Promptly after the date of this
Agreement, the Company will, and will cause its Subsidiaries to, (a) make all
filings required by Law to be made by it or them in connection with the
Transactions, (b) cooperate with the Investors with respect to all filings that
the Investors elect to make or are required by Law or this Agreement to make in
connection with the Transactions and (c) use commercially reasonable efforts to
obtain all Consents, Permits and Orders of all Persons required to be obtained
in connection with the execution, delivery and performance of this Agreement and
the consummation of the Transactions, including all Consents set forth on Parts
3.05, 3.15 and 4.03 of the Disclosure Schedule.

               5.02 Notice of Certain Events. From the date of this Agreement
until the Subsequent Closing Date (or termination of the Company's obligation to
consummate the Subsequent Closing), the Company will promptly notify the
Investors in writing of (i) any notice or other communication from any Person
alleging that the Consent of such Person is or may be required in connection
with the execution, delivery or performance of this Agreement or any Transaction
Document or the consummation of the Transactions; (ii) any notice or other
communication from any Governmental Entity in connection with the Transactions;
(iii) any Actions or investigations commenced or, to the knowledge of the
Company, threatened against, relating to or involving or otherwise affecting the
Company or its Subsidiaries which could reasonably be likely to have a Material
Adverse Effect; (iv) any Order or notification relating to any material
violation or claimed violation of Law involving or otherwise affecting the
Company or any of its Subsidiaries; and (v) any failure of the Company or any of
its Subsidiaries to comply with or satisfy any covenant, condition or agreement
to be complied with or satisfied by it hereunder.

               5.03 Use of Proceeds. The proceeds from the sale of the Shares
hereunder shall be used (i) to pay costs associated with launching new
satellites, and expanding and upgrading ground infrastructure, (ii) to pay all
the accrued and unpaid dividends on the Company's Series A Preferred Stock
through and including the Initial Closing Date, (iii) to

                                       32

<PAGE>

Convertible Note and Stock Purchase Agreement

purchase from Sagamore Hill Hub Fund, Ltd., and its affiliates ("Sagamore"), up
to all of the shares of the Company's Series A Preferred Stock held by Sagamore
as of the Initial Closing Date at a price per share not to exceed $2.84 per
share plus accrued dividends thereon, and (iv) for working capital and other
general corporate purposes of the Company and its Subsidiaries. Part 5.03 of the
Disclosure Schedule sets forth the expected use of the proceeds with respect to
the uses in clause (i) above from the sale of the Convertible Notes and Shares
hereunder.

               5.04 FCC Matters. As soon as practicable, and in any event within
thirty (30) Business Days after the date hereof, the Company shall make, or
shall cause its Subsidiaries to make, a filing with or application to the FCC to
ensure that the FCC's records reflect the 10% or greater shareholders of the
Company and clarification of the entities controlling the Company and any
Subsidiary.

               5.05 Further Assurances. From and after the date of this
Agreement until the Subsequent Closing Date (or termination of the Company's
obligation to consummate the Subsequent Closing), the Company shall, and shall
cause each of its Subsidiaries to, use commercially reasonable efforts to take
promptly or cause to be taken, all actions, and do promptly, or cause to be
done, all actions necessary, proper and advisable to cause the conditions set
forth in Article X hereof to be satisfied; provided, however that the Company
shall not be required to take any action by this Section 5.05 that would prevent
the Company from consummating a Qualified Public Offering or Qualified Sale.

               5.06 Conduct. From and after the date of this Agreement until the
Subsequent Closing Date (or termination of the Company's obligation to
consummate the Subsequent Closing), the Company shall not, and shall cause each
of its Subsidiaries (other than SATCOM or ORBCOMM Europe) not to, issue any
equity securities (other than in a Qualified Public Offering) if the primary
purpose of such issuance is to raise capital for the Company or any of its
Subsidiaries. For the avoidance of doubt, the issuance of equity securities by
the Company (i) pursuant to a employee stock option plan, directors arrangement
or employment or consulting agreement or (ii) to vendors or financial
institutions in connection with contracts or credit facilities, shall not be
deemed to be for the primary purpose of raising capital.

               5.07 Delivery of Audited 2006 Financial Statements. The Company
shall use commercially reasonable efforts to deliver to Investors the Audited
2006 Financial Statements as soon as reasonably practicable after the December
31, 2006.

               5.08 Chief Operating Officer. The Company shall use its
commercially reasonable efforts to hire a Chief Operating Officer as soon as
reasonably practicable following the date of this Agreement.

               5.09 Directors and Officers Insurance. The Company shall use
commercially reasonable efforts to obtain Directors and Officers Insurance
reasonably satisfactory to Investors (with a coverage amount of not less than
$10,000,000) as soon as reasonably practicable following the date of this
Agreement (and in any event within 90 days following the date of this
Agreement).

                                       33

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Convertible Note and Stock Purchase Agreement

                                   ARTICLE VI

                             COVENANTS OF INVESTORS

               6.01 Cooperation by the Investors. From the date of this
Agreement until the Subsequent Closing Date (or termination of the Investor's
obligation to consummate the Subsequent Closing), the Investors will use
commercially reasonable efforts to cooperate with the Company (i) to secure all
Consents and Permits from Persons identified in Part 3.05, 3.09(a) and 4.03 of
the Disclosure Schedule; (ii) to obtain any required FCC approval; and (iii)
with respect to all filings required to be made by the Company pursuant to Law
in connection with the Transactions.

                                  ARTICLE VII

                            COVENANTS OF THE PARTIES

               7.01 Reasonable Efforts.

               (a) Each party will use commercially reasonable efforts to cause
     all conditions precedent to its obligations to consummate the Transactions
     (upon the terms and conditions set forth in Articles VIII, IX and X, as
     applicable, to the Investors and the Company) to be satisfied provided,
     however that the parties shall not be required to take any action by this
     Section 7.01 that would prevent the Company from consummating a Qualified
     Public Offering or Qualified Sale.

               (b) In furtherance and not in limitation of the covenants of the
     parties contained in this Section 7.01, each party agrees to use
     commercially reasonable efforts to address such objections, if any, as may
     be asserted with respect to the transactions contemplated hereby under the
     Communications Act of 1934, as amended, any rule, regulation or policy of
     the FCC, and/or any statute, rule, regulation or policy of any other
     Governmental Entity with respect to the operation of channels of radio
     communication and/or the provision of communications services
     (collectively, "Communications Regulation"). In connection with the
     foregoing, each party agrees to cooperate and use commercially reasonable
     efforts to assist in any defense by any other party hereto of the
     transactions contemplated by this Agreement before any Governmental
     Authority reviewing the transactions contemplated by this Agreement,
     including by promptly providing such information as may be reasonably
     requested by such Governmental Authority or such assistance as may be
     reasonably requested by the other party hereto in such defense.

               (c) If any objections are asserted with respect to the
     transactions contemplated hereby under any Communications Regulation or if
     any suit is instituted by any Governmental Authority or any private party
     challenging any of the transactions contemplated hereby as violative of any
     Communications Regulation, the parties shall use commercially reasonable
     efforts to resolve any such objections or challenge as such Governmental
     Authority or private party may have to such transactions under such law so
     as to permit consummation of the transactions contemplated by this
     Agreement. In furtherance of the parties' obligations under this Section
     7.01, the Investors and the Company shall be required to (and, to the
     extent required by any Governmental Entity, shall cause any

                                       34

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Convertible Note and Stock Purchase Agreement

     Subsidiary to), propose, negotiate, commit to and enter into one or more
     settlements, undertakings, conditions, consent decrees, stipulations and
     other agreements with or to one or more Governmental Entity (each, a
     "Settlement") in connection with the transactions contemplated by this
     Agreement (including obtaining the requisite consent of such Governmental
     Entity); provided, however, that none of the parties nor any of their
     affiliates shall be required to take (or direct the taking of) any of the
     foregoing actions or any other action contemplated by this Section 7.01
     that would reasonably be expected to have a Material Adverse Effect.

               7.02 Further Assurances. From time to time after the Initial
Closing and the Subsequent Closing, the Company and the Investors will, at the
other's reasonable request, and at the requesting party's expense, execute and
deliver such instruments of transfer, conveyance, assignment and assumption, in
addition to those delivered at the Initial Closing and the Subsequent Closing,
and take such other action as any of them may reasonably request in order to
evidence the consummation of the Transactions.

               7.03 Representation and Warranties. None of the Company or any of
the Investors will take or omit to take any action, the effect of which could
reasonably be expected to cause any of its representations and warranties made
herein to be inaccurate on the Initial Closing Date or the Subsequent Closing
Date, as the case may be.

               7.04 Public Announcements. No press release or announcement
concerning the Transactions will be issued by any party without the prior
consent of the other parties, except as such release or announcement may be
required by Law, in which case the party required to make the release or
announcement will, to the extent practicable, allow the other party reasonable
time to comment on such release or announcement in advance of such issuance.

               7.05 Confidentiality.

               (a) If the Transactions are not consummated, the parties will
     remain obligated under the Confidentiality Agreements.

               (b) The Confidentiality Agreements will be deemed terminated at
     and as of the Initial Closing, and the Company and each of the Investors
     agree that, from and after the Initial Closing, to protect all of the
     disclosing party's Confidential Information as confidential and proprietary
     information and, except with the prior written consent of the disclosing
     party or as otherwise specifically provided herein, shall not disclose,
     copy or distribute such Confidential Information to any other Person;
     provided that the Investors may disclose information on a confidential
     basis to their Representatives and Affiliates.

               (c) It shall not be deemed a breach of this Agreement if the
     receiving party produces the Confidential Information under order of a
     court of competent jurisdiction or a valid administrative, arbitral or
     congressional subpoena, provided that the receiving party promptly notifies
     the disclosing party of such event so that the disclosing party may seek an
     appropriate protective order.

               (d) The receiving party shall not make any use of the disclosing
     party's Confidential Information for its own benefit or for the benefit of
     any other Person.

                                       35
<PAGE>

Convertible Note and Stock Purchase Agreement

               (e) The receiving party shall not disclose all or any part of the
     disclosing party's Confidential Information to any Representative of the
     receiving party except on a need-to-know basis. The receiving party agrees
     to inform any of its Representatives who receive the disclosing party's
     Confidential Information of the confidential and proprietary nature thereof
     and of such Representative's obligations with respect to the maintenance of
     such Confidential Information in conformance with the terms of this
     Agreement.

               (f) The receiving party shall use the same degree of care to
     protect the confidentiality of the Confidential Information disclosed to it
     as it uses to protect its own Confidential Information, but in all events
     shall use at least a reasonable degree of care. Each party represents that
     such degree of care provides adequate protection for its own proprietary
     information.

               (g) The receiving party shall immediately advise the disclosing
     party in writing of any misappropriation or misuse by any person of the
     disclosing party's Confidential Information of which the receiving party is
     aware.

               (h) All Confidential Information that is furnished by or on
     behalf of the disclosing party, including, without limitation, any copies
     of such materials, shall be promptly returned by the receiving party to the
     disclosing party upon written request by the disclosing party for any
     reason. Any documents or materials prepared by or on behalf of the
     receiving party (including, without limitation, reports, memoranda, notes,
     files or analyses, whether in written or electronic form) which contain
     Confidential Information, including all copies, shall promptly be destroyed
     by the receiving party upon written request by the disclosing party for any
     reason. Such destruction shall be certified by an officer of the receiving
     party.

               7.06 Supplements to Disclosure Schedule. The Company may, from
time to time after the Initial Closing Date and prior to the Subsequent Closing
Date, by written notice to the Investors, supplement or amend the Disclosure
Schedule (or the Agreement solely to add an appropriate reference to the
Disclosure Schedule) solely for the purposes of the representations and
warranties made by the Company and/or ORBCOMM LLC on and as of the Subsequent
Closing (a) disclose or correct any matter, condition, event or circumstance
occurring or arising after the date of this Agreement necessary or appropriate
to make any representation or warranty of the Company or ORBCOMM LLC in this
Agreement true and correct or (b) disclose or correct any matter, condition,
event or circumstance occurring or arising prior to the date of this Agreement
necessary or appropriate to make any representation or warranty of the Company
in this Agreement that is qualified "to the knowledge" of the Company true and
correct (but only to the extent the Company and/or ORBCOMM LLC did not have
knowledge thereof on the date of this Agreement and only to the extent the
matter, condition, event or circumstances described in such disclosure would not
have a Material Adverse Effect). With respect to any matter disclosed on such
supplements or amendments that is, in each case, necessary or appropriate to
make any representation or warranty true and correct, for all purposes of this
Agreement (including Articles III, X and XII) the Disclosure Schedule shall be
deemed to have been supplemented and amended to include such matters disclosed
on such supplements or amendments for purposes of the Subsequent Closing only,
and any claims with respect to such matters as they relate to the Subsequent
Closing shall be deemed to be waived by the

                                       36

<PAGE>

Convertible Note and Stock Purchase Agreement

indemnified parties and the indemnified parties shall not be entitled to make
any claims with respect thereto. For the avoidance of doubt, such supplements or
amendments shall in no way reduce the liability of the Company and/or ORBCOMM
LLC for representations and warranties made on the date of this Agreement or the
Initial Closing Date.

               7.07 Application of Series A Dividends. Each party agrees and
acknowledges that SES Global Participations SA and Ridgewood Satellite LLC may
use proceeds from the payment of the accrued dividends on the Series A Preferred
Stock to purchase an amount not to exceed 446,650 shares and 334,988 shares of
Series B Preferred Stock, respectively, at a purchase price of $4.03 per share,
so long as such purchase is consummated within 5 days of the payment of such
accrued dividends by the Company (which payment of accrued dividends shall occur
no later than January 6, 2006). So long as all the conditions set forth in this
Section 7.07 are satisfied, this Section 7.07 shall evidence the consent and
approval of the Investors under the provisions of 6(a)(iv) of the Restated
Certificate with respect to the issuance of Series B Preferred Stock described
in the prior sentence.

                                  ARTICLE VIII

                    CONDITIONS TO THE OBLIGATIONS OF COMPANY

          The Company's obligations under this Agreement and the Transaction
Documents to each Investor are subject to the satisfaction, at or prior to the
Initial Closing and the Subsequent Closing, as the case may be, of each of the
following conditions (any of which may be waived by the Company, in writing, in
whole or in part):

               8.01 Representation, Warranties and Covenants. The
representations and warranties made by such Investor in this Agreement and the
Transaction Documents (x) that are qualified as to materiality will be true and
correct in all respects and (y) that are not qualified as to materiality will be
true and correct in material respects, in each case as of the date of this
Agreement and on the Initial Closing Date or the Subsequent Closing Date, as the
case may be, with the same effect as if made on and as of each such date
(provided, however, that such representations which are made as of a specific
date shall be so true and correct as of such date).

               (a) Such Investor will have performed in all material respects
     each of its covenants and agreements required to be performed by it
     pursuant to this Agreement and the Transaction Documents on or prior to the
     Initial Closing or the Subsequent Closing Date, as the case may be.

               (b) The Company will have received a certificate from such
     Investor, executed by an officer of such Investor, dated as of the Initial
     Closing Date or the Subsequent Closing Date as the case may be, reasonably
     satisfactory to the Company and its counsel, certifying that the conditions
     set forth in this Section 8.01 have been fulfilled in all material
     respects.

               8.02 Governmental Consents. All Consents and Permits of all
Persons required to be obtained prior to the Initial Closing and the Subsequent
Closing, as the case may be, in connection with the execution, delivery and
performance of this Agreement and the Transaction Documents shall have been
obtained in form and substance reasonably satisfactory

                                       37

<PAGE>

Convertible Note and Stock Purchase Agreement

to the Company and its counsel and will be in full force and effect, including
the applicable Consent and Permits, if any, set forth on Part 3.05 and 4.03 of
the Disclosure Schedule and any approval required under the HSR Act or by the
FCC.

               (a) No order from any Governmental entity, or part thereof,
     challenges or seeks to prohibit or limit the ownership or operation of all
     or any portion of the Business or assets of the Company or ORBCOMM LLC or
     the Shares.

               8.03 No Injunction. There will not be in effect any Law or Order
issued by any court of competent jurisdiction or other Governmental Entity that
restrains or prohibits the consummation of the Transactions; provided, however,
that if such Order is in effect the Company will use commercially reasonable
efforts to have any such Order vacated or reversed.

               8.04 Other Agreements. Such Investor shall have delivered to the
Company the Second Amended and Restated Preferred Stock Voting Agreement, dated
December 30, 2005 in the form attached as Exhibit D and the Second Amended and
Restated Registration Rights Agreement, dated December 30, 2005 in the form
attached as Exhibit B, in each case duly executed by such Investor, on or prior
to the Initial Closing.

               8.05 No Qualified Public Offering or Qualified Sale. Since the
date of this Agreement, there shall not have occurred a Qualified Public
Offering or Qualified Sale.

               8.06 Change of Control. With respect to the Subsequent Closing
only, since the Initial Closing Date, there shall not have occurred a Change of
Control.

                                   ARTICLE IX

         CONDITIONS TO THE OBLIGATIONS OF INVESTORS WITH RESPECT TO THE
                                 INITIAL CLOSING

          Each Investor's obligations under this Agreement and the Transaction
Documents are subject to the satisfaction at or prior to each of the Convertible
Note Closing and the Initial Share Closing, of each of the following conditions.

               9.01 Representations, Warranties and Covenants.

               (a) The representations and warranties made by the Company and
     ORBCOMM LLC in this Agreement and the Transaction Documents (x) that are
     qualified as to materiality will be true and correct in all respects and
     (y) that are not qualified as to materiality will be true and correct in
     all material respects, in each case as of the date of this Agreement and on
     the Initial Closing Date, with the same effect as if made on and as of each
     such date (provided, however, that such representations which are made as
     of a specific date shall be so true and correct as of such date).

               (b) Each of the Company and ORBCOMM LLC will have performed in
     all material respects each of the covenants and agreements required to be
     performed by it pursuant to this Agreement and the Transaction Documents on
     or prior to the Initial Closing.

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<PAGE>

Convertible Note and Stock Purchase Agreement

               (c) The Investors will have received the following certificates:

                    (i) a certificate executed by an officer of the Company,
          dated as of the Initial Closing Date, reasonably satisfactory to the
          Investors and their counsel, certifying that the conditions set forth
          in this Article IX have been fulfilled;

                    (ii) a certificate of the Secretary of the Company
          certifying copies of the Certificate of Incorporation and Bylaws of
          the Company, and certifying a copy of all corporate resolutions
          required in connection with the transactions contemplated in this
          Agreement and the Transaction Documents; and

                    (iii) a certificate of Good Standing from the Delaware
          Secretary of State for the Company and ORBCOMM LLC.

               9.02 Consents.

               (a) Consents and Permits of all Persons required to be obtained
     prior to the Initial Closing in connection with the execution, delivery and
     performance of this Agreement and the Transaction Documents by the Company
     and its Subsidiaries shall have been obtained in form and substance
     reasonably satisfactory to the Investors and their counsel and will be in
     full force and effect, including the applicable Consents and Permits set
     forth on Part 3.05 of the Disclosure Schedule and any approvals required
     under the HSR Act or by the FCC.

               (b) No Order from any Governmental Entity, or part thereof,
     challenges or seeks to prohibit or limit the ownership or operation of all
     or any portion of the Business or assets of the Company or its Subsidiaries
     or the Convertible Notes or Shares.

               9.03 No Litigation. Since the date of this Agreement, no new
Action will have been threatened, instituted or pending which (a) challenges or
seeks to restrain or prohibit the consummation of the transactions contemplated
by the Transaction Documents or the performance of the Agreement or the
Transaction Documents, (b) challenges or seeks to prohibit or limit the
ownership or operation of all or any portion of the Company, the Business or
assets of the Company or any of its Subsidiaries or the Convertibles Notes or
Shares or compels or seeks to compel the Investors or their Affiliates to
dispose of or hold separate all or any portion of the Business or assets of the
Company or any of its Subsidiaries, or (c) has had, or could reasonably be
expected to have, a Material Adverse Effect on the Company or its Subsidiaries.

               9.04 No Prohibition. On or after the date of this Agreement,
there will not exist or have been enacted, entered, enforced, promulgated or
deemed applicable to the Transaction, any Law, Order or any other action taken
by any court or other Governmental Entity that has resulted, or could reasonably
be expected to result, directly or indirectly, in any of the consequences
referred to in Section 9.03.

               9.05 No Material Adverse Change. Since the date of this
Agreement, there shall not have occurred a Material Adverse Change.

                                       39

<PAGE>

Convertible Note and Stock Purchase Agreement

               9.06 Legal Opinion. The Investors shall have received opinions of
Chadbourne & Parke LLP, special counsel to the Company, as to corporate matters
and from Wilkinson, Barker & Knauer, LLP as to certain regulatory matters, in
the forms attached hereto as Exhibit K and Exhibit L, respectively.

               9.07 Management Rights Letter. The Company and ORBCOMM LLC shall
have entered into a Management Rights Letter in the form of Exhibit F attached
hereto with each of the Investors.

               9.08 Board Composition. As of the Initial Closing, the Company's
Board of Directors shall be comprised of: Jerome B. Eisenberg, Don Franco, Marco
Fuchs, Peter Schiff, Leslie Golden, Robert Gold, Robert Bednarek, Tim Kelleher
and Matthew Lesesky.

               9.09 Director's Indemnification Agreement. The Company shall have
entered into Indemnification Agreements in the form of Exhibit G attached hereto
with each member of the Company's Board of Directors.

               9.10 Amendment of By-Laws. The By-Laws of the Company shall have
been amended to the satisfaction of the Investors.

               9.11 Effectiveness and Amendment of Initial Tranche Series B
Preferred Stock Documents. The transaction documents to be entered into in
connection with the First Tranche Series B Preferred Stock including the Amended
and Restated Stockholders Agreement, dated November 18, 2005, (ii) the Amended
and Restated Registration Rights Agreement, dated November 18, 2005, (iii) the
Amended and Restated Preferred Stock Voting Agreement, dated November 18, 2005,
(iv) the Amended and Restated Common Stock Voting Agreement, dated November 18,
2005, and (v) the Second Amended and Restated Certificate of Incorporation,
shall each have become effective.

               9.12 Stockholder Approval and Effectiveness of Amendments to
Transaction Documents. The Investors shall have been provided with evidence to
their satisfaction that appropriate majorities of the Company's stockholders
shall have authorized and approved the Company's (i) the Second Amended and
Restated Stockholders Agreement, dated December 30, 2005 in the form attached
hereto as Exhibit C, (ii) the Second Amended and Restated Registration Rights
Agreement, dated December 30 , 2005 in the form attached hereto as Exhibit B,
(iii) the Second Amended and Restated Preferred Stock Voting Agreement, dated
December 30, 2005, in the form attached hereto as Exhibit D, and (iv) the Third
Amended and Restated Certificate of in the form attached hereto as Exhibit A,
and that all such Transaction Documents shall be in full force and effect.

               9.13 Convertible Noteholder Approval. The Investors shall have
been provided with evidence to their satisfaction that a majority of the
Convertible Noteholders (determined immediately prior to the Convertible Note
Closing) shall have approved and consented to (i) the Second Amended and
Restated Stockholders Agreement, dated December 30, 2005 in the form attached
hereto as Exhibit C, (ii) the Second Amended and Restated Registration Rights
Agreement, dated December

                                       40

<PAGE>

Convertible Note and Stock Purchase Agreement

30, 2005 in the form attached hereto as Exhibit B, (iii) the Second Amended and
Restated Preferred Stock Voting Agreement, dated December 30, 2005, in the form
attached hereto as Exhibit D, and (iv) the Third Amended and Restated
Certificate of in the form attached hereto as Exhibit A.

               9.14 Satcom Acquisition. The Investors shall have been provided
with evidence to their satisfaction that the transactions contemplated by the
Contribution Agreement, dated February 17, 2004, a copy of which is attached
hereto as Exhibit H, shall have been consummated.

               9.15 Stock Option Plan. The Company shall have adopted the 2006
Stock Option Plan attached hereto as Exhibit J and shall have reserved for
issuance thereunder 4,851,905 shares of Common Stock.

                                    ARTICLE X

       CONDITIONS TO THE OBLIGATIONS OF THE INVESTORS WITH RESPECT TO THE
                               SUBSEQUENT CLOSING

          Each Investor's obligations under this Agreement and the Transaction
Documents are subject to the satisfaction at the Subsequent Closing, of each of
the following conditions.

               10.01 Representations, Warranties and Covenants.

               (a) The representations and warranties made by the Company and
     ORBCOMM LLC in this Agreement and the Transaction Documents (x) that are
     qualified as to materiality will be true and correct in all respects and
     (y) that are not qualified as to materiality will be true and correct in
     all material respects, in each case as of the date of this Agreement and on
     the Subsequent Closing Date, with the same effect as if made on and as of
     each such date (provided, however, that such representations which are made
     as of a specific date shall be so true and correct as of such date).

               (b) The Company and ORBCOMM LLC will each have performed in all
     material respects each of the covenants and agreements required to be
     performed by each of them pursuant to this Agreement and the Transaction
     Documents on or prior to the Subsequent Closing.

               (c) The Investors will have received the following certificates:

                    (i) a certificate executed by an officer of the Company,
          dated as of the Subsequent Closing Date, reasonably satisfactory to
          the Investors and their counsel, certifying that the conditions set
          forth in this Article X have been fulfilled;

                    (ii) a certificate of the Secretary of the Company
          certifying copies of the Certificate of Incorporation and Bylaws of
          the Company, and certifying a copy of all corporate and limited
          liability company resolutions required in connection with the
          transactions contemplated in this Agreement and the Transaction
          Documents; and

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<PAGE>

Convertible Note and Stock Purchase Agreement

                    (iii) a certificate of Good Standing from the Delaware
          Secretary of State for the Company and ORBCOMM LLC.

               10.02 Consents.

               (a) All Consents and Permits of all Persons required to be
     obtained prior to the Subsequent Closing in connection with the execution,
     delivery and performance of this Agreement and the Transaction Documents by
     the Company and its Subsidiaries shall have been obtained in form and
     substance reasonably satisfactory to the Investors and their counsel and
     will be in full force and effect, including the applicable Consents and
     Permits set forth on Part 3.05 of the Disclosure Schedule and any approvals
     required under the HSR Act or by the FCC.

               (b) No Order from any Governmental Entity, or part thereof,
     challenges or seeks to prohibit or limit the ownership or operation of all
     or any portion of the Business or assets of the Company or its Subsidiaries
     or the Shares.

               10.03 No Litigation. Since the date of this Agreement, no new
Action will have been threatened, instituted or pending which (a) challenges or
seeks to restrain or prohibit the consummation of the Transactions or the
performance of the Agreement or the Transaction Documents, (b) challenges or
seeks to prohibit or limit the ownership or operation of all or any portion of
the Company, the Business or assets of the Company or any of its Subsidiaries or
the Shares or compels or seeks to compel the Investors or their Affiliates to
dispose of or hold separate all or any portion of the Business or assets of the
Company or any of its Subsidiaries, or (c) is a Material Adverse Change.

               10.04 No Prohibition. On or after the date of this Agreement,
there will not exist or have been enacted, entered, enforced, promulgated or
deemed applicable to the Transactions, any Law, Order or any other action taken
by any court or other Governmental Entity that has resulted, or could reasonably
be expected to result, directly or indirectly, in any of the consequences
referred to in Section 10.03.

               10.05 No Material Adverse Change. Since the date of this
Agreement, there shall not have occurred any Material Adverse Change (other than
a Material Adverse Change that has been cured or otherwise eliminated such that,
as of the Subsequent Closing Date, the events or circumstances giving rise to
such Material Adverse Change no longer constitute a Material Adverse Change),
including, without limitation, any change(s), matter(s), condition(s), event or
circumstance(s) disclosed by way of amendment, revision or supplement to the
Disclosure Schedule pursuant to Section 7.06 hereof that would constitute,
individually or in the aggregate, a Material Adverse Change.

               10.06 No Qualified Public Offering or Qualified Sale. Since the
date of this Agreement there shall not have occurred a Qualified Public Offering
or Qualified Sale.

               10.07 Legal Opinion. The Investors shall have received opinions
of Chadbourne & Parke LLP, special counsel to the Company, as to corporate
matters and from Wilkinson, Barker & Knauer, LLP as to certain regulatory
matters, each dated as of and covering

                                       42

<PAGE>

Convertible Note and Stock Purchase Agreement

matters as of the Subsequent Closing Date and each substantially in the form of
the opinions provided at the Initial Closing with such changes as are reasonably
acceptable to the Investors.

               10.08 Insolvency Event. Since the Initial Closing Date, there
shall not have occurred an Insolvency Event.

               10.09 Change of Control. Since the Initial Closing Date, there
shall not have occurred a Change of Control.

               10.10 Subscribers. The Company shall have at least 150,000
billable subscribers as of the Subsequent Closing Date.

               10.11 Net Revenue. The Company and its Subsidiaries on a
consolidated basis shall have net revenue for the fiscal year ended December 31,
2006 of at least $20,000,000.

               10.12 2006 Financial Statements. Investors shall have received
the consolidated balance sheet of the Company as of December 31, 2006, together
with the consolidated statements of income and changes in shareholders' equity
and cash flows (including notes thereto), audited by an independent accounting
firm of recognized national standing (the "Audited 2006 Financial Statements").

                                   ARTICLE XI

                             Intentionally Deleted.

                                   ARTICLE XII

                          SURVIVAL AND INDEMNIFICATION

               12.01 Survival and Indemnification.

               (a) The parties may assert claims for breach and indemnification
     under this Agreement; provided that the representations and warranties made
     in this Agreement, and the right of the parties to assert claims for
     indemnification under this Agreement, will survive the Initial Closing
     until sixty (60) days following the delivery to the Investors of the
     Company's audited financial statements for 2006, and will survive the
     Subsequent Closing, if applicable, until the later of (i) sixty (60) days
     following the delivery to the Investors of the Company's audited financial
     statement for 2007 and (ii) twelve months following the Subsequent Closing
     Date, and will thereupon expire together with any right to commence any
     Action for breach thereof (except to the extent a written notice asserting
     a Claim for breach of any such representation or warranty has been given
     prior to such date to the party which made such representation or warranty,
     in which case such representation or warranty will survive, to the extent
     of such Claim only, until such Claim is resolved). Notwithstanding the
     foregoing, (i) the representations and warranties contained in Section 3.02
     of this Agreement will survive each of the Initial Closing and the
     Subsequent Closing forever, and (ii) the representations and warranties set
     forth in Sections 3.01, 3.04, 3.05, 3.09 and 3.11 will survive each of the
     Initial Closing and the Subsequent Closing until the expiration of the
     applicable statute of limitations. The covenants and agreements contained
     in this Agreement

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<PAGE>

Convertible Note and Stock Purchase Agreement

     and in the Transaction Documents will survive each of the Initial Closing
     and Subsequent Closing until the expiration of the applicable statute of
     limitations or such earlier times as expressly set forth in this Agreement
     or such Transaction Document.

               (b) The Company and ORBCOMM LLC jointly and severally agree to
     indemnify and hold harmless each Investor and each of their affiliates and
     their respective officers, directors, employees, agents, advisors and other
     representatives (each, an "Indemnified Party") from and against (and will
     reimburse each Indemnified Party as the same are incurred for) any and all
     claims, damages, losses, liabilities and expenses (including, without
     limitation, the reasonable fees, disbursements and other charges of
     counsel) that may be incurred by or asserted or awarded against any
     Indemnified Party, in each case arising out of or in connection with or by
     reason of any claim made by a Convertible Noteholder against the
     Indemnified Party arising from the transactions contemplated by this
     Agreement (including, without limitation, in connection with any
     investigation, litigation or proceeding or preparation of a defense in
     connection with such claim).

               12.02 Limitations on Liability.

               (a) Certain Limitations. (i) No party will be entitled to any
     recovery from any other party unless a Claim specifying the factual basis
     of that Claim in reasonable detail to the extent then known, is made on or
     before the expiration of time period for survival set forth in Section
     12.01; and (ii) damages to any party hereunder will be decreased by
     insurance proceeds or payments from any other responsible parties actually
     received by such party (after deducting costs and expenses incurred in
     connection with recovery of such proceeds) and will be increased to take
     account of any net tax cost incurred by the party from whom a recovery is
     sought arising from the receipt of payments hereunder (grossed up for such
     increase).

               (b) Limitation on Amount - the Investors. The Investors will not
     be entitled to recover any amounts (i) for any breach of any representation
     or warranty made by the Company, ORBCOMM LLC or any Transaction Document or
     (ii) for any breach of any covenant, agreement or other obligation of the
     Company hereunder or in any Transaction Document unless and until the
     amount by which the aggregate amount that the Investors would be entitled
     to recover in respect of such Claims exceeds $500,000 (the "Threshold"), in
     which event the Investor shall be entitled to recover the entire amount in
     respect of such Claims together with reasonable actual legal fees and
     expenses; provided, however, that the maximum amount recoverable by an
     Investor in respect of any such claims hereunder will not, in the
     aggregate, exceed the purchase price for the Convertible Notes and Shares
     paid by such Investor and provided further, however, that individual
     unrelated Claims less than $50,000 may not be aggregated for purposes of
     reaching the Threshold. The limitations set forth in this Section 12.02(b)
     shall not apply to the provisions of Section 12.01(b).

               (c) Limitation on Amount - the Company. The Company will not be
     entitled to recover any amounts (i) for any breach of any representation or
     warranty made by any Investor in this Agreement or in any Transaction
     Document or (ii) for any breach of any covenant, agreement or other
     obligation of any Investor in this Agreement or in any

                                       44

<PAGE>

Convertible Note and Stock Purchase Agreement

     Transaction Document unless and until the amount by which the Company is
     entitled to recover in respect of such Claims exceeds $500,000 ("the
     Company Threshold") in which event the entire amount in respect of such
     Claims will be payable together with its reasonable actual legal fees and
     expenses; provided, however, that the maximum amount recoverable from any
     Investor in respect of any such claims hereunder will not exceed the
     purchase price for the Shares paid by such Investor; provided further,
     however, that individual unrelated Claims less than $50,000 may not be
     aggregated for purposes of reaching the Company Threshold.

               (d) Limitation on Liability. Under no circumstances shall any
     party hereunder (or any of their Affiliates or Representatives) be liable
     to any other party (or any of their Affiliates or Representatives) for
     incidental, special or consequential damages of any kind, including lost
     profits, loss of business, damages to reputation whether in contract, tort
     or otherwise.

               (e) Sole and Exclusive Remedy. Except as set forth in Section
     13.12 and except for fraud, the indemnification provisions of this Article
     XII shall be the sole and exclusive remedy of each party (i) for any breach
     of the other party's representations, warranties, covenants or agreements
     contained in this Agreement or (ii) otherwise with respect to this
     Agreement or the transactions contemplated by this Agreement.

                                  ARTICLE XIII

                            MISCELLANEOUS PROVISIONS

               13.01 Fees and Expenses. Subject to the Initial Closing
occurring, on the Initial Closing Date, the Company shall pay to PCG a
transaction fee of $425,000 (the "Transaction Fee"). Such fee shall be
non-refundable to the Company and can be deducted by PCG from any amount owed by
a PCG Entity to the Company hereunder, including, without limitation, the
purchase price of any securities purchased by a PCG Entity hereunder. In
addition to the foregoing, subject to the Convertible Note Closing and/or
Subsequent Closing, as the case may be, occurring, on each of the Initial
Closing Date and the Subsequent Closing Date, (i) the Company shall pay to PCG
all reasonable out-of pocket expenses of the PCG Entities associated with the
transactions contemplated hereby, including, without limitation, the costs
associated with any due diligence investigations and the preparation,
negotiation, execution and delivery of definitive legal documentation including
any fees of legal counsel ("PCG Transaction Expenses"); provided however, that
the Company's obligation to pay PCG Transaction Expenses shall not exceed
$700,000 and (ii) the Company shall pay to MH all reasonable out-of pocket
expenses of MH associated with the transactions contemplated hereby, including,
without limitation, the costs associated with any due diligence investigations
and the preparation, negotiation, execution and delivery of definitive legal
documentation including any fees of legal counsel ("MH Transaction Expenses"
and, together with the PCG Transaction Expenses, the "Transaction Expenses");
provided however, that the Company's obligation to pay MH Transaction Expenses
shall not exceed $50,000. The Transaction Expenses shall be non-refundable to
the Company and can be deducted by PCG and MH from any amount owed by a PCG
Entity and MH (as the case may be) to the Company hereunder, including, without
limitation, the purchase price of any securities purchased by a PCG Entity or MH
hereunder.

                                       45

<PAGE>

Convertible Note and Stock Purchase Agreement

The parties agree that all costs, fees and expenses incurred by the Company or
any of its Subsidiaries arising out of or related to the negotiation,
preparation, execution, delivery or performance of this Agreement or the other
Transaction Documents or the consummation of the transactions contemplated
hereby, will be paid by the Company.

               13.02 Notices. All notices, consents, waivers and other
communications under this Agreement must be in writing and will be deemed to
have been duly given when (a) delivered by hand (with written or electronic
confirmation of receipt), (b) sent by facsimile (with written confirmation of
receipt), provided, that a copy is mailed by registered mail, return receipt
requested, or (c) when received by the addressee, if sent by a nationally
recognized overnight delivery service (receipt requested), in each case to the
appropriate addresses and facsimile numbers set forth below (or to such other
addresses and facsimile numbers as a party may designate by written notice to
the other parties):

               (a)  If to the Company:

                    ORBCOMM Inc.
                    2115 Linwood Avenue, Suite 100
                    Fort Lee, NJ 07024
                    Attention: Chief Executive Officer and General Counsel
                    Facsimile No.: 703-433-6400

          with a copy to:

                    Chadbourne & Parke LLP
                    30 Rockefeller Plaza
                    New York, NY 10112
                    Attention: Alejandro San Miguel
                    Facsimile No.: 212-541-5369

               (b)  If to the Investors:

          to the addresses set forth on the signature pages.

          with a copy to:

                    In the case of PCG,

                    Latham & Watkins LLP
                    633 West Fifth Street
                    Los Angeles, CA 90071
                    Attn: W. Alex Voxman
                    Facsimile No.: 213-891-8763

                    In the case of MH:

                    McDermott Will & Emery, LLP

                                       46

<PAGE>

Convertible Note and Stock Purchase Agreement

                    227 West Monroe Street
                    Chicago, IL 60606
                    Attn: Mark A. Harris
                    Facsimile No.: 312-984-7700

               13.03 Jurisdiction; Service of Process. Each of the parties
hereto hereby irrevocably and unconditionally consents to submit to the
exclusive jurisdiction of the (a) Supreme Court of the State of New York, New
York County and (b) United States District Court for the Southern District of
New York, for any actions, suits or proceedings arising out of or relating to
this Agreement, the Transaction Documents and the Transaction (and agrees not to
commence any action, suit or proceeding relating thereto except in such courts),
and further agrees that service of any process, summons, notice or document by
U.S. registered mail to its respective address set forth in Section 13.02 will
be effective service of process for any action, suit or proceeding brought
against it in any such court. Each of the parties hereto hereby irrevocably and
unconditionally waives any objection to the laying of venue of any action, suit
or proceeding arising out of or relating to this Agreement, the Transaction
Documents or the Transaction in the courts of the State of New York or the
United States of America located in the City of New York, and hereby further
irrevocably and unconditionally waives and agrees not to plead or claim in any
such court that any such action, suit or proceeding brought in any such court
has been brought in an inconvenient forum.

               13.04 Governing Law. This Agreement will be construed in
accordance with and governed by the internal laws of the State of New York
applicable to agreements made and to be performed entirely within such State
without regard to conflicts of laws principles thereof.

               13.05 Waiver. The rights and remedies of the parties to this
Agreement are cumulative and not alternative. Neither the failure nor any delay
by any party in exercising any right, power or privilege under this Agreement or
the documents referred to in this Agreement will operate as a waiver of such
right, power or privilege, and no single or partial exercise of any such right,
power or privilege will preclude any other or further exercise of such right,
power or privilege or the exercise of any other right, power or privilege. To
the maximum extent permitted by Law, (a) no Claim or right arising out of this
Agreement or the Transaction Documents can be discharged by one party, in whole
or in part, by a waiver or renunciation of the Claim or right unless in writing
signed by the other party; (b) no waiver that may be given by a party will be
applicable except in the specific instance for which it is given and will not
operate as a waiver of, or estoppel with respect to, any subsequent or other
failure or noncompliance; and (c) no notice to or demand on one party will be
deemed to be a waiver of any obligation of such party or of the right of the
party giving such notice or demand to take further action without notice or
demand as provided in this Agreement or the Transaction Documents.

               13.06 Entire Agreement and Modification. This Agreement, the
Transaction Documents and the Confidentiality Agreements constitute a complete
and exclusive statement of the terms of the agreement between the parties with
respect to an investment in the Company and supersede all prior agreements
between the parties.

                                       47

<PAGE>

Convertible Note and Stock Purchase Agreement

               13.07 Amendment and Waiver. This Agreement may be amended or
terminated and the observance of any term of or condition in this Agreement may
be waived with respect to all parties to this Agreement (either generally or in
a particular instance and either retroactively or prospectively), with the
written consent of the Company and the Majority Holders. Notwithstanding the
foregoing, this Agreement may not be amended or terminated and the observance of
any term hereunder may not be waived with respect to any Investor without the
written consent of such Investor unless such amendment, termination or waiver
applies to all Investors in the same fashion. The Company shall give prompt
written notice of any amendment or termination hereof or waiver hereunder to any
party hereto that did not consent in writing to such amendment, termination or
waiver. Any amendment, termination or waiver effected in accordance with this
Section 13.07 shall be binding on all parties hereto, even if they do not
execute such consent. No waivers of or exceptions to any term, condition or
provision of this Agreement, in any one or more instances, shall be deemed to
be, or construed as, a further or continuing waiver of any such term, condition
or provision.

               13.08 Assignments, Successors, and No Third-Party Beneficiaries.
No party may assign any of its rights under this Agreement or any Transaction
Document without the prior written consent of the other parties to this
Agreement; provided, however, that an Investor may assign this Agreement to an
Affiliate or any limited partnership, limited liability company or fund with the
same fund manager as such Investor without the prior written consent of the
Company; provided, further, however that such assignee agrees in writing to
assume assignor's obligations hereunder. Subject to the preceding sentence, this
Agreement and the Transaction Documents will apply to, be binding in all
respects upon, and inure to the benefit of the successors and permitted assigns
of the parties. Nothing expressed or referred to in this Agreement or the
Transaction Documents will be construed to give any Person other than the
parties to this Agreement any legal or equitable right, remedy or claim under or
with respect to this Agreement or the Transaction Documents or any provision of
this Agreement or the Transaction Documents, except that members of the Investor
Group and the Company Group will be entitled to the rights set forth in Article
XIII hereof. Subject to the preceding sentence, this Agreement and the
Transaction Documents and all of its provisions and conditions are for the sole
and exclusive benefit of the parties to this Agreement and their permitted
successors and assigns.

               13.09 Severability. If any provision of this Agreement is held
invalid or unenforceable by any court of competent jurisdiction, the other
provisions of this Agreement will remain in full force and effect. Any provision
of this Agreement held invalid or unenforceable only in part or degree will
remain in full force and effect to the extent not held invalid or unenforceable.

               13.10 Captions; Currency. The article, section and paragraph
captions herein and the table of contents hereto are for convenience of
reference only, do not constitute part of this Agreement and will not be deemed
to limit or otherwise affect any of the provisions hereof. Unless otherwise
specified, all references herein to numbered articles and sections are to
articles and sections of this Agreement, all references herein to schedules are
to schedules to this Agreement and all references herein to exhibits are to
exhibits to this Agreement. Unless otherwise specified, all references contained
in this Agreement or in any Transaction Document to dollars or "$" will mean
United States Dollars.

                                       48

<PAGE>

Convertible Note and Stock Purchase Agreement

               13.11 Exhibits and Schedules. All Transaction Documents are
hereby incorporated in and made a part of this Agreement as if set forth in full
herein. Capitalized terms used in the Transaction Documents but not otherwise
defined therein will have the respective meanings assigned to such terms in this
Agreement. Disclosure of any item in any section of or on any schedule to this
Agreement will not constitute disclosure of such item in any other section of or
on any other schedule to this Agreement, whether or not the existence of the
item or its contents should be or is relevant to any other section of or
schedule to this Agreement, unless an explicit cross-reference thereto appears
in such other section or schedule or the context reasonably should be considered
relevant in light of the nature of the item and section.

               13.12 Specific Performance. In the event of any actual or
threatened default in, or breach of, any of the terms, conditions and provisions
of this Agreement, the party or parties who are or are to be thereby aggrieved
will have the right of specific performance and injunctive relief giving effect
to its or their rights under this Agreement, in addition to any and all other
rights and remedies at Law or in equity, and all such rights and remedies will
be cumulative. The parties agree that any such breach or threatened breach would
cause irreparable injury, that the remedies at law for any such breach or
threatened breach, including monetary damages, are inadequate compensation for
any loss and that any defense in any action for specific performance that a
remedy at Law would be adequate is waived. The parties further agree that any
requirement under any Law to post security as a prerequisite to obtaining
equitable relief is hereby waived.

               13.13 Interpretation. For the purposes of this Agreement, (i)
words in the singular will be held to include the plural and vice versa and
words of one gender shall be held to include the other gender as the context
requires, (ii) the terms "hereof", "herein", and "herewith" and words of similar
import will, unless otherwise stated, be construed to refer to this Agreement as
a whole and not to any particular provision of this Agreement, (iii) the word
"including" and words of similar import when used in this Agreement will mean
"including, without limitation", unless otherwise specified, (iv) the word "or"
will not be exclusive, (v) the term "contract" will mean any written agreement,
understanding, contract, commitment, obligation, promise or understanding, (vi)
the phrase "made available" will mean that the information referred to has been
made available if requested by the party to whom such information is to be made
available, (vii) any reference to any Law referred to in this Agreement will be
deemed to include only the Law and the rules and regulations issued pursuant to
such Laws in effect on the date of this Agreement and the Initial Closing Date
and Subsequent Closing Date, as applicable, (viii) any accounting term used in
this Agreement will have, unless otherwise specifically provided herein, the
meaning customarily given such term in accordance with GAAP, and all financial
computations hereunder will be computed, unless otherwise specifically provided
herein, in accordance with GAAP consistently applied and (ix) a "breach" of a
representation, warranty, covenant, obligation or other provision of this
Agreement or any Transaction Document will be deemed to have occurred if there
is or has been any inaccuracy in or breach of or any failure to perform or
comply with, such representation, warranty, covenant, obligation, or other
provision, and the term "breach" means any such inaccuracy, failure, occurrence
or circumstance. The parties hereto have participated jointly in the negotiation
and drafting of this Agreement and this Agreement will not be construed for or
against any party by reason of the authorship or alleged authorship of any
provision hereof or by reason of the status of the respective parties.

                                       49

<PAGE>

Convertible Note and Stock Purchase Agreement

               13.14 Time of Essence. With regard to all dates and time periods
set forth or referred to in this Agreement, time is of the essence.

               13.15 Counterparts. This Agreement may be executed simultaneously
in two or more original or facsimile counterparts, each of which will be deemed
to be an original copy of this Agreement and all of which together will be
deemed to constitute one and the same agreement.

               13.16 Limited CALPERS/PCG Guaranty. In order to induce the
Company to enter into this Agreement CALPERS/PCG hereby irrevocably and
unconditionally guarantees full and complete performance of the obligation of
PCG to purchase 7,444,168 of the Shares to be purchased by PCG (for an aggregate
purchase price of $30,000,000) at the Subsequent Closing pursuant to Section
2.02(c) of this Agreement, subject to the satisfaction or waiver of all
conditions set forth in Articles VIII and X hereof and subject to the other
terms and conditions of this Agreement (the "Guaranteed PCG Obligations").
CALPERS/PCG agrees that the Company need not attempt to collect any part of the
Guaranteed PCG Obligations from PCG or others, but may require CALPERS/PCG to
make immediate payment of the Guaranteed PCG Obligations when due or at any time
thereafter. Other than pursuant to the terms of this Agreement, to the fullest
extent permitted by law, CALPERS/PCG hereby waives all defenses, counterclaims,
and all suretyship defenses, other than payment or performance in full of the
underlying obligations. Notwithstanding anything herein to the contrary,
CALPERS/PCG shall have no greater obligations or liabilities with respect to the
Guaranteed PCG Obligations and no lesser defenses or counterclaims than it would
be entitled to if it were an Investor under this Agreement.

               13.17 Limited MH Guaranty. In order to induce the Company to
enter into this Agreement MH PEF hereby irrevocably and unconditionally
guarantees full and complete performance of the obligation of MH to purchase
2,481,390 of the Shares (for an aggregate purchase price of $10,000,000) at the
Subsequent Closing pursuant to Section 2.02(c) of this Agreement, subject to the
satisfaction or waiver of all conditions set forth in Articles VIII and X hereof
and subject to the other terms and conditions of this Agreement (the "Guaranteed
MH Obligations"). MH PEF agrees that the Company need not attempt to collect any
part of the Guaranteed MH Obligations from MH or others, but may require MH PEF
to make immediate payment of the Guaranteed MH Obligations when due or at any
time thereafter. Other than pursuant to the terms of this Agreement, to the
fullest extent permitted by law, MH PEF hereby waives all defenses,
counterclaims, and all suretyship defenses, other than payment or performance in
full of the underlying obligations. Notwithstanding anything herein to the
contrary, MH PEF shall have no greater obligations or liabilities with respect
to the Guaranteed MH Obligations and no lesser defenses or counterclaims than it
would be entitled to if it were an Investor under this Agreement.

                           [Signature pages to follow]

                                       50
<PAGE>

          IN WITNESS WHEREOF, this Convertible Note and Stock Purchase Agreement
has been duly executed and delivered by the duly authorized officers of the
parties as of the date first written above.

ORBCOMM INC.

By: /s/ Jerome B. Eisenberg
    ---------------------------------
Name: Jerome B. Eisenberg
Title: Chief Executive Officer

ORBCOMM LLC

By: /s/ Jerome B. Eisenberg
    ---------------------------------
Name: Jerome B. Eisenberg
Title: Chief Executive Officer

<PAGE>

Convertible Note and Stock Purchase Agreement

PCG SATELLITE INVESTMENTS, LLC

By: CALPERS/PCG Corporate Partners LLC
    a Delaware limited liability company
Its: Managing Member

By: PCG Corporate Partners Investments LLC
Its: Manager

By: Pacific Corporate Group Holdings, LLC
Its: Managing Member

By: /s/ signature illegible
    ---------------------------------
Its: Managing Director

                                       2

<PAGE>

Convertible Note and Stock Purchase Agreement

MH INVESTORS ORBCOMM LLC

By: /s/ Ronald Gerwig
    ---------------------------------
Name: Ronald Gerwig
Title: Asst Treasurer

                                       3

<PAGE>

Convertible Note and Stock Purchase Agreement

For purposes of Section 13.16 only:

CALPERS/PCG Corporate Partners LLC
a Delaware limited liability company
Managing Member

By: PCG Corporate Partners Investments LLC
Its: Manager

By: Pacific Corporate Group Holdings, LLC
Its: Managing Member

By: /s/ signature illegible
    ------------------------------------
Its: Managing Director

                                       4

<PAGE>

Convertible Note and Stock Purchase Agreement

For purposes of Section 13.17 only:

MH Private Equity Fund LLC
an Indiana limited liability company

By:
    ---------------------------------
Its:
    ---------------------------------

By: /s/ signature illegible
    ---------------------------------
Its:
    ---------------------------------

                                       5

<PAGE>

                                   SCHEDULE I

                              SCHEDULE OF INVESTORS

<TABLE>
<CAPTION>
                                                                                   NUMBER OF
                                 INVESTMENT AMOUNT     NUMBER OF SERIES B       SERIES B SHARES
         INVESTOR NAME           CONVERTIBLE NOTES   SHARES INITIAL CLOSING   SUBSEQUENT CLOSING
------------------------------   -----------------   ----------------------   ------------------
<S>                              <C>                 <C>                      <C>
PCG Satellite Investments, LLC      $550,000(1)           7,699,752(2)             7,816,377
MH Investors Orbcomm LLC                None              3,722,084                2,481,390
</TABLE>

----------
(1)  This amount may be offset against amounts owed to PCG Satellite
     Investments, LLC or its Affiliates by the Company including amounts
     contemplated by Section 13.01 hereof. Such amount shall convert into
     136,476 shares of Series B Preferred upon consummation of the Convertible
     Note Closing.

(2)  Excluding 136,476 shares of Series B Preferred Stock issuable to PCG
     Satellite Investments, LLC upon conversion of $550,000 of Convertible
     Notes.

<PAGE>

Convertible Note and Stock Purchase Agreement

                                   SCHEDULE II

                       CONVERTIBLE PROMISSORY NOTEHOLDERS

<TABLE>
<CAPTION>
NO.                  NOTEHOLDER                 PRINCIPAL AMOUNT
---   ---------------------------------------   ----------------
<S>   <C>                                       <C>
 1    Arthur Bahr                                   $ 14,000
 2    Bukfenc Inc.                                  $ 50,000
 3    Steven G. Chrust IRA                          $ 40,000
 4    Steven G. Chrust                              $  5,000
 5    Bert Cohen                                    $155,000
 6    E.B. Griswold IRA                             $ 10,000
 7    Estrin New Ventures II, LLC                   $ 52,000
 8    Eve Chrust, 2001 business Trust               $  6,000
 9    Michael Friedman                              $112,000
10    Christopher Lust                              $ 12,000
11    Edmund B. Greene                              $ 20,000
12    E.B. Griswold                                 $ 35,000
</TABLE>

                                       2

<PAGE>

Convertible Note and Stock Purchase Agreement

<TABLE>
<S>   <C>                                       <C>
13    Hoboken Partners 1 LLC                     $  125,000
14    Hans E.W. Hoffmann                         $   16,000
15    Jerry Kay                                  $   25,000
16    Liza Chrust, 2001 Chrust Business Trust    $    6,000
17    Philip Lodewick                            $   58,000
18    Christopher Lust                           $   28,000
19    Henning Melchers                           $  100,000
20    Murray Slimowitz IRA                       $   12,000
21    Denis Nayden                               $  210,000
22    Albert Nickel                              $   93,000
23    Northwood Capital Partners LLC             $  170,000
24    Northwood Ventures LLC                     $  830,000
25    OHB Technology A.G.                        $4,019,000
</TABLE>

                                       3

<PAGE>

Convertible Note and Stock Purchase Agreement

<TABLE>
<S>   <C>                                       <C>
26    Marble Arch Group Ltd.                     $  250,000(3)
27    Richard K. Webel Trust                     $   10,000
28    Ridgewood Satellite LLC                    $5,000,000
29    Robert Loud IRA                            $   12,000
30    Dr. Andre-Michasel Schultz                 $   66,000
31    Shippan Fund LLC                           $   39,000
32    SK Partners                                $   50,000
33    Hyung-Jin Song                             $    1,000
34    Elizabeth Steele                           $   50,000
35    Mark Sullivan                              $  242,000
36    Michael Sullivan                           $   40,000
37    William Vanden Heuvel                      $  116,000
</TABLE>

----------
(3)  Marble Arch Group Ltd. has subscribed for an additional $250,000 of
     Convertible Notes.

                                       4

<PAGE>

Convertible Note and Stock Purchase Agreement

<TABLE>
<S>   <C>                                       <C>
38    346 Hillcrest F&F Partners LLC             $ 1,000,000
39    Orbcomm Ventures, LLC                      $ 1,215,000
40    Dwaine and Cynthia Willet                  $ 1,725,000
41    Investment Partners of Orlando, LLP        $   475,000
42    John D. Curtis Revocable Trust             $ 1,725,000
43    Mary Higgins Clark                         $    75,000
44    William Jaffe                              $    25,000
45    Nakoma Investments LLC                     $   100,000
46    Northwood Ventures LLC                     $   850,000
47    Northwood Capital Partners LLC             $   150,000
48    Ridgewood Satellite LLC                    $ 5,000,000
49    PCG Satellite Investments, LLC             $   550,000
                                                 -----------
      Total                                      $25,019,000
                                                 ===========
</TABLE>

                                       5

<PAGE>

                                    EXHIBITS

EXHIBIT A -  Third Amended and Restated Certificate of Incorporation

EXHIBIT B -  Second Amended and Restated Registration Rights Agreement

EXHIBIT C -  Second Amended and Restated Stockholders Agreement

EXHIBIT D -  Second Amended and Restated Preferred Stock Voting Agreement

EXHIBIT E -  Second Amended and Restated Common Stock Voting Agreement

EXHIBIT F -  Form of Management Rights Letter

EXHIBIT G -  Form of Indemnification Agreement

EXHIBIT H-   Contribution Agreement

EXHIBIT I    Form of Convertible Note

EXHIBIT- I-A Form of Warrant

EXHIBIT J    Form of Stock Option Plan

EXHIBIT K    Form of Company Counsel Opinion (Corporate Matters)

EXHIBIT L    Form of Company Counsel Opinion (Regulatory Matters)

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