Document:

<PAGE>

                                                                     EXHIBIT 4.2

                                  ORBCOMM INC.
                             STOCKHOLDERS AGREEMENT

          THIS STOCKHOLDERS AGREEMENT (this "Agreement") is made and entered
into as of February 17, 2004, by and among ORBCOMM Inc., a Delaware corporation
(the "Company"), each of the persons and entities listed on Exhibit A hereto
(each, a "Preferred Stockholder" and, collectively, the "Preferred
Stockholders") and the persons and entities listed on Exhibit B hereto (each a
"Common Stockholder" and, collectively, the "Common Stockholders").

          WHEREAS, the Common Stockholders are the beneficial owners of an
aggregate of 8,486,901 shares of the Common Stock of the Company ("Common
Stock");

          WHEREAS, the Preferred Stockholders are holders of all of the
Company's outstanding shares of Series A Preferred Stock (the "Preferred
Stock");

          WHEREAS, the parties desire to enter into this Agreement in order to
protect the management and control of the Company.

          NOW, THEREFORE, in consideration of the premises and for other good
and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties agree hereto as follows:

          1. Definitions.

          1.1 "Affiliates" shall mean, with respect to any Person, any Person
which, directly or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with such Person or any Affiliate of
such Person, including, without limitation, any partner, officer, director,
member or employee of such Person and any venture capital 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.

          1.2 "Common Stock Equivalents" shall mean the Common Stock and shares
of Common Stock issued or issuable upon conversion of the Preferred Stock or
exercise of any option, warrant or other security or right of any kind
convertible into or exchangeable for Common Stock; provided that, for purposes
of calculating a Stockholder's pro rata participation rights pursuant to this
Agreement, the Common Stock Equivalents held by a Stockholder shall include the
number of Common Stock Equivalents of the Company held by Orbcomm Asset Holdings
allocable to such Stockholder, if any, based on the number of shares of fully
paid capital stock of Orbcomm Asset Holdings held by such Stockholder.

          1.3 "Common Stockholders" shall have the meaning given in the first
paragraph hereof, but shall also include their Permitted Transferees and Persons
required to become additional parties to this Agreement pursuant to Section 8,
and Trust Beneficiaries upon distribution of the Common Stock held by the Trust.

          1.4 "Holdings" shall mean ORBCOMM Holdings LLC, a Delaware limited
liability company.

<PAGE>

          1.5 "Members of Holdings" shall mean the holders of membership
interests in Holdings.

          1.6 "Notice of Transfer" shall mean a written notice which shall (i)
specifically identify the Third Party to whom a Stockholder proposes to Transfer
Shares pursuant to a bona fide Third Party Offer, (ii) include a copy of such
Third Party Offer and (iii) be irrevocable for at least the applicable notice
periods set forth in Articles 3 and 4.

          1.7 "Offered Shares" shall mean the Shares proposed to be Transferred
to a Third Party by a Stockholder pursuant to a Notice of Transfer.

          1.8 "Orbcomm Asset Holdings" means Orbcomm Asset Holdings Ltd., a
Cayman Islands limited company.

          1.9 "Permitted Transferees" shall mean, in the case of a Stockholder
that is a natural person, the spouse (including widow) or issue of the
Stockholder, a trust that benefits the Stockholder and/or his spouse (including
widow), issue or a charity or any Person controlled by such a trust or an entity
controlled directly or indirectly by the Stockholder (including individual
retirement accounts).

          1.10 "Person" shall mean a natural person, corporation, limited
partnership, general partnership, joint stock company, joint venture,
association, company, trust, bank, trust company, and trust, business trust or
other organization, whether or not a legal entity, or a government or agency or
any political subdivision thereof.

          1.11 "Shares" shall mean shares of voting capital stock of the
Company.

          1.12 "Stockholder" shall mean the Common Stockholders and Preferred
Stockholders.

          1.13 "Third Party" shall mean a reputable offeror, who shall not be an
Affiliate of the Stockholder proposing to Transfer Shares, who has adequate
financial resources to purchase the relevant Offered Shares.

          1.14 "Third Party Offer" shall mean a bona fide written offer by a
Third Party to purchase all or a portion of a Stockholder's Shares, which notice
shall specify the terms and conditions of the proposed Transfer, including (i)
the name and address of the Third Party, (ii) the manner in which a disposition
is proposed to be made, (iii) the price or consideration (which shall be cash or
indebtedness) at which and the form in which the proposed Transfer is to be
made, and (iv) all material terms and conditions of and to the Transfer.

          1.15 "Transfer" shall mean any sale, assignment, encumbrance,
hypothecation, pledge, conveyance in trust, gift, transfer by bequest, devise or
descent, or other transfer or disposition of any kind, including, but not
limited to, transfers to receivers, levying creditors, trustees or receivers in
bankruptcy proceedings or general assignees for the benefit of creditors,
whether voluntary or by operation of law, directly or indirectly, of any of the
Shares held by a Stockholder.

<PAGE>

          1.16 "Trust" shall mean the Liquidating Trust of OBRCOMM Global L.P.,
formerly a Delaware limited partnership.

          1.15 "Trust Beneficiaries" shall mean the beneficiaries of the Trust.

          2. Restriction on Transfers of Shares.

          2.1 Notwithstanding anything in this Agreement to the contrary, unless
approved by the parties necessary to amend this Agreement, no Stockholder shall
Transfer any Shares for a period of three years from the date of this Agreement.
Except as expressly permitted by Sections 3, 4, 5 or 6 hereof, each Stockholder
agrees that it will not directly or indirectly, Transfer any Shares or any
interest therein or enter into any commitment to do any of the foregoing without
the prior written consent of the Company. The Company agrees not to record any
Transfer of Shares unless such Transfer has been completed in compliance with
the provisions set forth in this Agreement. Notwithstanding the three (3)-year
restriction on transfers, the parties agree that (a) a distribution or transfer
of Common Stock by the Trust to the Trust Beneficiaries shall be permitted
without such approval and, upon such distribution or transfer, the Trust
Beneficiaries will be bound by the terms of this Agreement and will have all of
the rights, benefits and obligations of this Agreement as if they had been
original signatories and (b) a distribution or transfer of Common Stock by
Holdings to the Members of Holdings shall be permitted without such approval
provided that each of the Members of Holdings has executed a counterpart of this
Agreement prior to the date of such distribution or transfer, and, upon such
distribution or transfer, each Member of Holdings will be bound by the terms of
this Agreement and will have all of the rights, benefits and obligations of this
Agreement as if they had been original signatories. For the avoidance of doubt,
the foregoing three year period shall begin on the date of this Agreement for
any transferee that is a Trust Beneficiary or a Member of Holdings, without
reference to the ownership period of any such transferee. The Company agrees to
record any transfer or distribution of Common Stock from the Trust to the Trust
Beneficiaries and any transfer or distribution of Common Stock from Holdings to
the Members of Holdings made in accordance with the terms of this Agreement.

          2.2 Orbcomm Asset Holdings hereby irrevocably assigns its rights of
refusal and tag-along rights under this Agreement to the Stockholders who are
members of Orbcomm Asset Holdings in proportion to their fully paid membership
interests in Orbcomm Asset Holdings, which are set forth on Exhibit C hereto.
The foregoing assignment shall not affect the enforceability of the other
provisions of this Agreement as to Orbcomm Asset Holdings, and Orbcomm Asset
Holdings, and its Shares, shall remain subject to the restrictions on Transfer,
the Drag-Along provision, and other provisions of this Agreement.
Notwithstanding any provision of this Agreement to the contrary, the provisions
of Section 5.1 of this Agreement relating to Exempt Transfers shall not apply to
Orbcomm Asset Holdings.

          3. Right of First Refusal.

          3.1 Transfers by Common Stockholders. (i) In connection with a
proposed Transfer of Shares by a Common Stockholder (the "Selling Common
Stockholder"), the Selling Common Stockholder shall first deliver to the
Company, the other Common Stockholders (the

<PAGE>

"Other Common Stockholders") and the Preferred Stockholders a Notice of Transfer
offering to the Company, the Other Common Stockholders and the Preferred
Stockholders all of the Offered Shares on the terms and conditions specified in
the Notice of Transfer and in the manner set forth in this Section 3.

          (ii) The Company shall have the first right and option for a period of
twenty (20) days after delivery to it of the Notice of Transfer to accept any or
all of the Offered Shares on the terms and conditions specified in the Notice of
Transfer. The Company may exercise its option by delivering to the Selling
Common Stockholder prior to the expiration of such twenty (20) day period a
written notice specifying the number of Offered Shares which the Company has
elected to purchase. If the Company elects to purchase less than all of the
Offered Shares, the Company shall deliver, within two (2) days after termination
of such twenty (20) day period, a written notice to the Other Common
Stockholders and the Preferred Stockholders indicating the number of Offered
Shares which the Company has elected to purchase.

          (iii) The Other Common Stockholders shall thereafter have the second
right and option for a period of ten (10) days after delivery to them of such
notice from the Company to elect to purchase any or all of the Offered Shares
which the Company did not elect to purchase on the terms and conditions
specified in the Notice of Transfer. The Offered Shares which the Company did
not elect to purchase shall be allocated among the Other Common Stockholders on
a pro rata basis, based on the Common Stock Equivalents held by each Other
Common Stockholder. Each of the Other Common Stockholders may exercise its
option by delivering a written notice to the Company and the Selling Common
Stockholder prior to the termination of such ten (10) day period specifying the
number of the remaining Offered Shares such Other Common Stockholder has elected
to purchase. In the event that one or more Other Common Stockholders do not
elect to purchase all of the Offered Shares allocated to them, Other Common
Stockholders who have elected to purchase their full allocation within the ten
(10) day period shall have an additional option, for a period of five (5) days
next succeeding the expiration of the ten (10) day period, to purchase all or
any part of the balance of such remaining Offered Shares on the terms and
conditions set forth in the Notice of Transfer, which option shall be exercised
by the delivery of written notice to the Company and the Selling Common
Stockholder prior to the termination of such five (5) day period specifying the
number of additional Offered Shares such Other Common Stockholder has elected to
purchase. In the event there are two or more such Other Common Stockholders that
choose to exercise the last-mentioned option for a total number of remaining
Offered Shares in excess of the number available, the remaining Offered Shares
available for each such Other Common Stockholder's option shall be allocated to
such Other Common Stockholder pro rata based on the number of Common Stock
Equivalents owned by the Other Common Stockholders so electing. If the Company
and the Other Common Stockholders elect to purchase less than all of the Offered
Shares, the Company shall deliver, within two (2) days after the termination of
the five (5) day period discussed above, a written notice to the Preferred
Stockholders indicating the number of Offered Shares which the Company and the
Other Common Stockholders have elected to purchase.

          (iv) The Preferred Stockholders shall thereafter have the third right
and option, at their sole discretion for a period of ten (10) days after
delivery to them of such notice by the Company to elect to purchase any or all
of the Offered Shares which the Company and the Other

<PAGE>

Common Stockholders did not elect to purchase on the terms and conditions
specified in the Notice of Transfer. The Offered Shares which the Company and
the Other Common Stockholders did not elect to purchase shall be allocated among
the Preferred Stockholders on a pro rata basis, based on the Common Stock
Equivalents held by each Preferred Stockholder. Each of the Preferred
Stockholders may exercise its option by delivering a written notice to the
Company and the Selling Common Stockholder prior to the termination of such ten
(10) day period specifying the number of the remaining Offered Shares such
Preferred Stockholder has elected to purchase. In the event that one or more
Preferred Stockholders do not elect to purchase all of the Offered Shares
allocated to them, Preferred Stockholders who have elected to purchase their
full allocation within the ten (10) day period shall have an additional option,
for a period of five (5) days next succeeding the expiration of the ten (10) day
period, to purchase all or any part of the balance of such remaining Offered
Shares on the terms and conditions set forth in the Notice of Transfer, which
option shall be exercised by the delivery of a written notice to the Company and
the Selling Common Stockholder prior to the termination of such five (5) day
period specifying the number of additional Offered Shares such Preferred
Stockholder has elected to purchase. In the event that there are two or more
such Preferred Stockholders that choose to exercise the last-mentioned option
for a total number of remaining Offered Shares in excess of the number
available, the remaining Offered Shares available for each such Preferred
Stockholder's option shall be allocated to such Preferred Stockholder pro rata
based on the number of Common Stock Equivalents owned by the Preferred
Stockholders so electing. Within two (2) days following the end of such five (5)
day period, the Company shall deliver a notice to the all of the Stockholders
indicating the total number of Offered Shares which the Company, the Other
Common Stockholders and the Preferred Stockholders have elected to purchase.

          3.2 Transfers by Preferred Stockholders. (i) In connection with a
proposed Transfer of Shares by a Preferred Stockholder (the "Selling Preferred
Stockholder"), the Selling Preferred Stockholder shall first deliver to the
Company, the other Preferred Stockholders (the "Other Preferred Stockholders")
and the Common Stockholders a Notice of Transfer offering to the Company, the
Other Preferred Stockholders and the Common Stockholders all of the Offered
Shares on the terms and conditions specified in the Notice of Transfer and in
the manner set forth in this Section 3.

          (ii) The Company shall have the first right and option for a period of
twenty (20) days after delivery to it of the Notice of Transfer to accept any or
all of the Offered Shares on the terms and conditions specified in the Notice of
Transfer. The Company may exercise its option by delivering to the Selling
Preferred Stockholder prior to the expiration of such twenty (20) day period a
written notice specifying the number of Offered Shares which the Company has
elected to purchase. If the Company elects to purchase less than all of the
Offered Shares, the Company shall deliver, within two (2) days after termination
of such twenty (20) day period, a written notice to the Other Preferred
Stockholders and the Common Stockholders indicating the number of Offered Shares
which the Company has elected to purchase.

          (iii) The Other Preferred Stockholders shall thereafter have the
second right and option for a period of ten (10) days after delivery to them of
such notice from the Company to elect to purchase any or all of the Offered
Shares which the Company did not elect to purchase on the terms and conditions
specified in the Notice of Transfer. The Offered Shares which the

<PAGE>

Company did not elect to purchase shall be allocated among the Other Preferred
Stockholders on a pro rata basis, based on the Common Stock Equivalents held by
each Other Preferred Stockholder. Each of the Other Preferred Stockholders may
exercise its option by delivering a written notice to the Company and the
Selling Preferred Stockholder prior to the termination of such ten (10) day
period specifying the number of the remaining Offered Shares such Other
Preferred Stockholder has elected to purchase. In the event that one or more
Other Preferred Stockholders do not elect to purchase all of the Offered Shares
allocated to them, Other Preferred Stockholders who have elected to purchase
their full allocation within the ten (10) day period shall have an additional
option, for a period of five (5) days next succeeding the expiration of the ten
(10) day period, to purchase all or any part of the balance of such remaining
Offered Shares on the terms and conditions set forth in the Notice of Transfer,
which option shall be exercised by the delivery of written notice to the Company
and the Selling Preferred Stockholder prior to the termination of such five (5)
day period specifying the number of additional Offered Shares such Other
Preferred Stockholder has elected to purchase. In the event there are two or
more such Other Preferred Stockholders that choose to exercise the
last-mentioned option for a total number of remaining Offered Shares in excess
of the number available, the remaining Offered Shares available for each such
Other Preferred Stockholder's option shall be allocated to such Other Preferred
Stockholder pro rata based on the number of Common Stock Equivalents owned by
the Other Preferred Stockholders so electing. If the Company and the Other
Preferred Stockholders elect to purchase less than all of the Offered Shares,
the Company shall deliver, within two (2) days after the termination of the five
(5) day period discussed above, a written notice to the Common Stockholders
indicating the number of Offered Shares which the Company and the Other
Preferred Stockholders have elected to purchase.

          (iv) The Common Stockholders shall thereafter have the third right and
option, at their sole discretion for a period of ten (10) days after delivery to
them of such notice by the Company to elect to purchase any or all of the
Offered Shares which the Company and the Other Preferred Stockholders did not
elect to purchase on the terms and conditions specified in the Notice of
Transfer. The Offered Shares which the Company and the Other Preferred
Stockholders did not elect to purchase shall be allocated among the Common
Stockholders on a pro rata basis, based on the Common Stock Equivalents held by
each Common Stockholder. Each of the Common Stockholders may exercise its option
by delivering a written notice to the Company and the Selling Preferred
Stockholder prior to the termination of such ten (10) day period specifying the
number of the remaining Offered Shares such Common Stockholder has elected to
purchase. In the event that one or more Common Stockholders do not elect to
purchase all of the Offered Shares allocated to them, Common Stockholders who
have elected to purchase their full allocation with the ten (10) day period
shall have an additional option, for a period of five (5) days next succeeding
the expiration of the ten (10) day period, to purchase all or any part of the
balance of such remaining Offered Shares on the terms and conditions set forth
in the Notice of Transfer, which option shall be exercised by the delivery of a
written notice to the Company and the Selling Preferred Stockholder prior to the
termination of such five (5) day period specifying the number of additional
Offered Shares such Common Stockholder has elected to purchase. In the event
that there are two or more such Common Stockholders that choose to exercise the
last-mentioned option for a total number of remaining Offered Shares in excess
of the number available, the remaining Offered Shares available for each such
Common Stockholder's option shall be allocated to such Common Stockholder pro
rata based on the

<PAGE>

number of Common Stock Equivalents owned by the Common Stockholders so electing.
Within two (2) days following the end of such five (5) day period, the Company
shall deliver a notice to the all of the Stockholders indicating the total
number of Offered Shares which the Company, the Other Preferred Stockholders and
the Common Stockholders have elected to purchase.

          3.3 If not all of the Offered Shares are purchased pursuant to
paragraphs 3.1 and 3.2 above, the Selling Common Stockholder or Selling
Preferred Stockholder, as the case may be (such person, a "Selling
Stockholder"), may Transfer to the Third Party all of the Offered Shares not
purchased pursuant to paragraphs 3.1 and 3.2 above, at a purchase price not less
than the price and on terms and conditions no more favorable to the Third Party
than the purchase price, terms and conditions set forth in the applicable Notice
of Transfer at any time within the one hundred twenty (120) day period following
the expiration of the applicable acceptance periods provided in paragraph 3.1 or
3.2 above, subject to the rights of the Stockholders (other than the Selling
Stockholder) set forth in Section 4 hereof. In the event the Selling Stockholder
does not Transfer to the Third Party within such one hundred twenty (120) day
period, the right of such Selling Stockholder to Transfer the Offered Shares
shall terminate and the obligations of this Section 3 shall be reinstated with
respect to the Offered Shares.

          3.4 Transfers, if any, of Offered Shares to any Stockholders pursuant
to the terms of paragraph 3.1 or 3.2 above shall be made at the registered
office of the Company (or such other place as the Company may designate in
writing upon three (3) days notice) on a mutually satisfactory business day
within fifteen (15) days after the expiration of the applicable acceptance
period provided for in paragraph 3.1 or 3.2. Delivery of certificates and duly
executed instruments of transfer of the Offered Shares shall be made on such
date against payment of the purchase price therefor, which shall be made in
accordance with the terms and conditions of the Notice of Transfer. If a Selling
Stockholder shall fail or refuse to Transfer any Shares to a purchaser as
required hereunder, the Company may authorize any person to execute and deliver
on his or its behalf the necessary Transfer documents. The Company may receive
the purchase money in trust for the Selling Stockholder and cause the purchaser
to be registered as the holder of the relevant Shares. The receipt by the
Company of the purchase money shall be a good discharge to the purchaser (who
shall not be bound to see to the application thereof). The Company shall not be
obliged to earn or pay interest on any money received by it on behalf of a
Selling Stockholder.

          4. Tag-Along Right.

          4.1 Tag-Along Rights on Transfers of Common Stock. (i) In the event
that the Company, the Other Common Stockholders and the Preferred Stockholders
do not exercise their options to purchase all of the Selling Common
Stockholder's Offered Shares, such Selling Common Stockholder shall offer each
Other Common Stockholder and each Preferred Stockholder (collectively, the
"Remaining Stockholders"), the opportunity to require that the Transfer by the
Selling Common Stockholder be conditioned upon the Third Party purchasing from
such Remaining Stockholder and from the Selling Common Stockholder a pro rata
portion of each such Stockholder's Shares, based upon the number of Common Stock
Equivalents owned by the Selling Common Stockholder and all Remaining
Stockholders exercising rights pursuant to this paragraph 4.1 (a "Tag-Along
Sale"). The Remaining Stockholders may exercise this right

<PAGE>

by delivering to the Company and the Selling Common Stockholder a Tag-Along
Notice in accordance with paragraph 4.1(ii) below. The Remaining Stockholders
delivering such a notice are hereinafter referred to as the "Tag-Along
Stockholders." In connection with a Tag-Along Sale, (i) the only
representations, warranties and covenants which any Tag-Along Stockholder shall
be required to make in connection with any Transfer are representations and
warranties with respect to its own ownership of the Shares to be sold by it and
its ability to convey title thereto free and clear of liens, encumbrances or
adverse claims, its due organization (if applicable), its due authorization,
execution and delivery of definitive purchase agreements (if applicable),
enforceability of such purchase agreement against it and no conflict of it with
such purchase agreement, and (ii) the liability of the Tag-Along Stockholder
with respect to any representation and warranty made in connection with any
Transfer is the several liability of such Tag-Along Stockholder (and not joint
with any other person).

          (ii) The Tag-Along Stockholders may exercise their rights pursuant to
clause (i) above by providing written notice (the "Tag-Along Notice") to the
Company and the Selling Common Stockholder no less than thirty (30) days after
the expiration of the final option election period in Section 3.1 above. The
Tag-Along Notice shall set forth the number of Shares each of the Tag-Along
Stockholders has elected to include in the Tag-Along Sale. The Tag-Along Notice
shall constitute the Tag-Along Stockholders' binding agreement to sell the
Shares specified in the Tag-Along Notice on the terms and conditions applicable
to the Tag-Along Sale; provided, however, that in the event there is any
material change in the terms and conditions of such Tag-Along Sale after the
Tag-Along Notice is given, then, notwithstanding anything herein to the
contrary, each Tag-Along Stockholder shall have the right to withdraw from the
Tag-Along Sale with respect to all Shares affected thereby. If the Third Party
does not consummate the purchase of all of the Shares requested to be included
in the Tag-Along Sale on the same terms and conditions applicable to the Selling
Common Stockholder, the Selling Common Stockholder shall not consummate the
Transfer of any of its Shares to the Third Party. If no Tag-Along Notice is
received by the Selling Common Stockholder prior to the end of the thirty (30)
day period specified above, the Selling Common Stockholder shall have the right
to consummate the Transfer to the Third Party, together with any Tag-Along Sale,
without the participation of such Remaining Stockholders on the terms and
conditions set forth in the Notice of Transfer and only if such sale is
consummated within the one hundred twenty (120) day period specified in Section
3.3. If the Tag-Along Sale does not occur within such one hundred twenty (120)
day period, the Shares that were subject to the Tag-Along Sale shall continue to
be subject to all of the restrictions contained in this Agreement.

          (iii) On the date of the Tag-Along Sale, each Tag-Along Stockholder
shall deliver a certificate or certificates for the Shares to be sold in
connection with the Tag-Along Sale, duly endorsed for transfer, to the Third
Party in the manner and at the address specified in the Tag-Along Notice against
delivery of the purchase price therefor, which shall be in accordance with the
terms of the Notice of Transfer; provided, however, that if the Third Party
objects to the delivery of Preferred Stock in lieu of Common Stock, such
Tag-Along Stockholder delivering Preferred Stock shall convert such Preferred
Stock to Common Stock and deliver Common Stock to the Third Party. The Company
agrees to make the conversion concurrent with the actual Transfer of Shares to
the Third Party.

<PAGE>

          4.2 Tag-Along Rights on Transfers of Preferred Stock. (i) In the event
that the Company, the Other Preferred Stockholder and the Common Stockholders do
not exercise their options to purchase all of the Selling Preferred
Stockholder's Offered Shares, such Selling Preferred Stockholder shall offer
each Other Preferred Stockholder (collectively, the "Remaining Preferred
Stockholders"), the opportunity to require that the Transfer by the Selling
Preferred Stockholder be conditioned upon the Third Party purchasing from such
Remaining Preferred Stockholder and from the Selling Preferred Stockholder a pro
rata portion of each such Stockholder's Shares, based upon the number of Common
Stock Equivalents owned by the Selling Preferred Stockholder and all Remaining
Preferred Stockholders exercising rights pursuant to this paragraph 4.2 (a
"Preferred Tag-Along Sale"). The Remaining Preferred Stockholders may exercise
this right by delivering to the Company and the Selling Preferred Stockholder a
Preferred Tag-Along Notice in accordance with paragraph 4.2(ii) below. The
Remaining Preferred Stockholders delivering such a notice are hereinafter
referred to as the "Tag-Along Preferred Stockholders." In connection with a
Preferred Tag-Along Sale, (i) the only representations, warranties and covenants
which any Tag-Along Preferred Stockholder shall be required to make in
connection with any Transfer are representations and warranties with respect to
its own ownership of the shares of Preferred Stock to be sold by it and its
ability to convey title thereto free and clear of liens, encumbrances or adverse
claims, its due organization (if applicable), its due authorization, execution
and delivery of definitive purchase agreements (if applicable), enforceability
of such purchase agreement against it and no conflict of it with such purchase
agreement, and (ii) the liability of the Tag-Along Preferred Stockholder with
respect to any representation and warranty made in connection with any Transfer
is the several liability of such Tag-Along Preferred Stockholder (and not joint
with any other person).

          (ii) The Tag-Along Preferred Stockholders may exercise their rights
pursuant to clause (i) above by providing written notice (the "Preferred
Tag-Along Notice") to the Company and the Selling Preferred Stockholder no less
than thirty (30) days after the expiration of the final option election period
in Section 3.2 above. The Preferred Tag-Along Notice shall set forth the number
of shares of Preferred Stock each of the Tag-Along Preferred Stockholders has
elected to include in the Preferred Tag-Along Sale. The Preferred Tag-Along
Notice shall constitute the Tag-Along Preferred Stockholders' binding agreement
to sell the shares of Preferred Stock specified in the Preferred Tag-Along
Notice on the terms and conditions applicable to the Preferred Tag-Along Sale;
provided, however, that in the event there is any material change in the terms
and conditions of such Preferred Tag-Along Sale after the Preferred Tag-Along
Notice is given, then, notwithstanding anything herein to the contrary, each
Tag-Along Preferred Stockholder shall have the right to withdraw from the
Preferred Tag-Along Sale with respect to all shares of Preferred Stock affected
thereby. If the Third Party does not consummate the purchase of all of the
shares of Preferred Stock requested to be included in the Preferred Tag-Along
Sale on the same terms and conditions applicable to the Selling Preferred
Stockholder, the Selling Preferred Stockholder shall not consummate the Transfer
of any of its shares of Preferred Stock to the Third Party. If no Preferred
Tag-Along Notice is received by the Selling Preferred Stockholder prior to the
end of the thirty (30) day period specified above, the Selling Preferred
Stockholder shall have the right to consummate the Transfer to the Third Party,
together with any Preferred Tag-Along Sale, without the participation of such
Remaining Preferred Stockholders on the terms and conditions set forth in the
Notice of Transfer and only if such sale is consummated within the one hundred
twenty (120) day period specified in

<PAGE>

Section 3.3. If the Preferred Tag-Along Sale does not occur within such one
hundred twenty (120) day period, the shares of Preferred Stock that were subject
to the Preferred Tag-Along Sale shall continue to be subject to all of the
restrictions contained in this Agreement.

          (iii) On the date of the Preferred Tag-Along Sale, each Tag-Along
Preferred Stockholder shall deliver a certificate or certificates for the shares
of Preferred Stock to be sold in connection with the Preferred Tag-Along Sale,
duly endorsed for transfer, to the Third Party in the manner and at the address
specified in the Preferred Tag-Along Notice against delivery of the purchase
price therefor, which shall be in accordance with the terms of the Notice of
Transfer.

          4.3 The exercise or non-exercise of the rights of the Stockholders
hereunder to participate in one or more Transfers of a the Selling Stockholder
shall not adversely affect their rights to participate in subsequent Transfers
of Shares subject to the restrictions set forth in this Agreement.

          5. Exempt Transfers.

          5.1 Notwithstanding the foregoing, the restrictions on transfer,
rights of first refusal and tag-along rights set forth in Sections 2, 3 and 4 of
this Agreement shall not apply to: (i) any transfer by a Preferred Stockholder,
if an entity, to its members (or members of its members), shareholders,
partners, or any direct or indirect majority-owned subsidiary, (ii) any
Stockholder to a Permitted Transferee, or (iii) any distribution or transfer of
Common Stock by the Trust to the Trust Beneficiaries; provided that in the event
any such transfer is made to any such Person, Trust Beneficiary, or a Permitted
Transferee, (A) such Person, Trust Beneficiary, or the Permitted Transferee
shall inform the Company of such transfer or gift prior to effecting it and (B)
such Person, Trust Beneficiary, or the Permitted Transferee shall furnish the
Stockholders and the Company with a written agreement to be bound by and comply
with all provisions of this Agreement and the Registration Rights Agreement to
the same extent as the transferor. Any purported transfer in violation of this
Section 5.1 shall be void ab initio. Upon such exempt transfer, the Person,
Trust Beneficiary, or Permitted Transferee shall have all of the rights,
benefits and obligations of a Stockholder under this Agreement and the
Registration Rights Agreement.

          5.2 Notwithstanding anything in this Agreement to the contrary, the
provisions of Sections 3 and 4 shall not apply to the sale of any Common Stock
pursuant to a registration statement filed with, and declared effective by, the
Securities and Exchange Commission under the Securities Act of 1933, as amended
(the "Securities Act").

          5.3 This Agreement is subject to and shall in no manner limit any
right the Company may have to repurchase securities from any Stockholder
pursuant to a stock restriction agreement or other agreement between the Company
and such Stockholder in connection with his or her employment with the Company
or any Affiliate of the Company. In the event of a right of first refusal held
by the Company on Shares held by any Stockholder, the right of refusal and
tag-along provisions shall apply upon the expiration of the right of first
refusal held by the Company.

<PAGE>

          6. Drag-Along Rights.

          6.1 (i) Each of the Stockholders agrees to hold all Shares registered
in its name or beneficially owned by it as of the date hereof and any and all
Shares legally or beneficially acquired by it after the date hereof subject to,
and to vote such Shares in accordance with, the provisions of this Section 6.
Each of the Stockholders further agrees that such Stockholder has not and shall
not enter into any Agreement (other than an amendment of this Agreement pursuant
to Section 11.2 hereof) which conflicts with the provisions of this Section 6.

               (ii) In the event there shall be authorized an Approved
Transaction (as such term is defined in Section 6.2 below), each Common
Stockholder and each Preferred Stockholder shall (a) vote all of its shares of
Common Stock and Preferred Stock, as the case may be, in favor of such Approved
Transaction, to the extent a vote of the Common Stockholders and/or Preferred
Stockholders (voting either as a single class or as separate classes) is
required for the consummation of the transaction and (b) if such Approved
Transaction is a Sale Transaction (as such term is defined in Section 6.3
below), Transfer all of its shares of Common Stock and Preferred Stock, as the
case may be, to the purchaser or purchasers in such Sale Transaction upon the
terms and conditions of such Sale Transaction.

               (iii) In negotiating a Sale Transaction, the Company shall
provide (A) that the only representations, warranties and covenants which the
Stockholders shall be required to make in connection with any Transfer are
representations and warranties with respect to its own ownership of its Shares
and, its ability to convey title thereto free and clear of liens, encumbrances
or adverse claims (if applicable), its due organization (if applicable), its due
authorization, execution and delivery of definitive purchase agreements (if
applicable), enforceability of such purchase agreement against it, (B) that the
liability of the Stockholders with respect to any representation and warranty
made in connection with any Transfer is the several liability of such
Stockholders (and not joint with any other person) and (C) none of the
Stockholders shall be required to provide any indemnification to anyone in
connection with the transaction (other than indemnification for damages
resulting from the breach of any representations or warranties made by such
Stockholders); provided, however, that the foregoing shall not limit the
obligations of the Stockholders, and such Stockholders hereby expressly agree to
be bound by and subject to, any escrow or other holdback arrangement (on a pro
rata basis on the number of Common Stock Equivalents sold by such Stockholders
in such transaction) provided for in the transaction documents for such
transaction.

               (iv) Each Stockholder hereby grants to the Chief Executive
Officer of the Company or other person appointed by the Board an irrevocable
proxy, coupled with an interest, to vote such Shares in accordance with this
Section 6, and hereby appoints the Chief Executive Officer or such other
appointee, its attorney in fact, with full power and authority to take any and
all actions on such Stockholder's behalf as may be necessary to approve and
consummate transactions approved pursuant to this provision in the event that
such party fails or refuses to vote or sell its Shares as required by this
Section 6.

               At the closing of any Sale Transaction, each of the parties to
this Agreement shall (A) execute and deliver such instruments of conveyance and
transfer and take

<PAGE>

such other actions, including executing any purchase agreement, merger agreement
or related documents, which the Company may reasonably request to consummate the
Sale Transaction and (B) deliver, against receipt of the consideration payable
in such transaction, certificates representing the Shares which such party holds
of record or beneficially, with all endorsements necessary for transfer. In the
event that any Stockholder fails or refuses to comply with the provisions of
this Section 6, the Company and the purchaser in such transaction, at their
option, may elect to proceed with such transaction notwithstanding such failure
or refusal and, in such event and upon tender of the specified consideration to
any such party, the rights of any such party with respect to the Shares of such
party shall cease.

          6.2 Approved Transaction. For purposes of this Section 6, the term
"Approved Transaction" shall mean the following:

               (i) any proposed equity financing transaction, including without
limitation, the sale of Common Stock or Preferred Stock of the Company for
consideration per share less than the Series A Conversion Price (as defined in
the Company's Amended and Restated Certificate of Incorporation) in effect
immediately prior to such financing, and, if required in connection with such
financing transaction, an increase in the authorized number of shares of the
Company's capital stock in connection with such proposed financing transaction;
provided, however, that the terms of such proposed equity financing transaction
shall have been approved by a majority of the Board of Directors of the Company;
or

               (ii) a Sale Transaction.

          6.3 Sale Transaction. For purposes of this Section 6, the term "Sale
Transaction" shall mean:

               (i) a proposed 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; provided, however, that such
transaction, (A) if the sale price or transaction value is based on a valuation
of the the Company, taken as a whole, of less than $85 million, the transaction
shall have been approved by a majority of the Board of Directors of the Company
and the holders of no less than a majority of the Preferred Stock or (B) if the
sale price or transaction value is based on a valuation of the Company, taken as
a whole, of equal to or greater than $85 million, the transaction shall have
been approved by a majority of the Board of Directors including no less than two
directors elected by the holders of the Common Stock; or

               (ii) a proposed 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

<PAGE>

directors in the continuing or surviving company or entity following such
transaction or transactions; provided, however, that such transaction, (A) if
the sale price or transaction value is based on a valuation of the Company,
taken as a whole, of less than $85 million, the transaction shall have been
approved by a majority of the Board of Directors of the Company and the holders
of no less than a majority of the Preferred Stock or (B) if the sale price or
transaction value is based on a valuation of the Company, taken as a whole, of
equal to or greater than $85 million, the transaction shall have been approved
by a majority of the Board of Directors of the Company and the holders of a
majority of the outstanding voting shares of the capital stock of the Company,
including the holders of a majority of the outstanding Common Stock.

          7. Additional Transfer Limitations.

          7.1 Legend. Each certificate representing Shares now or hereafter
owned by a Stockholder or issued to any person in connection with a transfer
permitted hereunder shall be endorsed with the following legend:

     "THE SALE, PLEDGE, HYPOTHECATION OR TRANSFER OF THE SECURITIES REPRESENTED
     BY THIS CERTIFICATE IS SUBJECT TO THE TERMS AND CONDITIONS OF A CERTAIN
     STOCKHOLDERS AGREEMENT BY AND BETWEEN THE STOCKHOLDER, THE COMPANY AND
     CERTAIN HOLDERS OF STOCK OF THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE
     OBTAINED UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY."

          7.2 Stop Transfer. The Stockholders agree that the Company may
instruct its transfer agent to impose transfer restrictions on the shares
represented by certificates bearing the legend referred to in Section 7.1 above
to enforce the provisions of this Agreement and the Company agrees to promptly
do so. The legend shall be removed upon termination of this Agreement.

          8. Additional Parties. The Company and the Stockholders agree that, as
a condition to the issuance, sale or transfer of Shares to any Person, the
Company and the Stockholders, as appropriate, will require that such Person
execute a counterpart of this Agreement as a "Stockholder" and such Person's
shares of capital stock shall thereafter constitute "Shares" for purposes of
this Agreement, unless the Board of Directors of the Company determines
otherwise.

          9. Financial Statements and Other Information.

          9.1 The Company shall deliver to each Stockholder holding at least
four percent (4%) of the Common Stock Equivalents then outstanding:

               (i) within 90 days after the end of each fiscal year of the
Company, an audited balance sheet of the Company as at the end of such year and
audited statements of income and of cash flows of the Company for such year,
certified by certified public accountants of established national reputation
selected by the Company, and prepared in accordance with generally accepted
accounting principles consistently applied; and

<PAGE>

               (ii) within 45 days after the end of each fiscal quarter of the
Company (other than the fourth quarter), an unaudited balance sheet of the
Company as at the end of such quarter, unaudited statements of income and of
cash flows of the Company for such fiscal quarter and for the current fiscal
year to the end of such fiscal quarter and a quarterly budget and cash flow
projections used in the normal management of the Company's affairs;

               (iii) within 30 days after the end of each month (other than the
last month of any fiscal quarter), an unaudited balance sheet of the Company as
at the end of such month and unaudited statements of income and of cash flows of
the Company for such month and for the current fiscal year to the end of such
month, setting forth in comparative form the Company's projected financial
statements for the corresponding periods for the current fiscal year and a
monthly budget and cash flow projections used in the normal management of the
Company's affairs;

               (iv) as soon as available, but in any event 30 days prior to the
commencement of each new fiscal year, an operating plan, budget and projected
financial statements, including the Company's revenues, expenses and cash
position on a quarter-to-quarter basis, for such fiscal year;

               (v) within five days after the Company learns of any material
claim or commencement of any legal or equitable proceeding, written notice of
such claim or proceeding;

               (vi) within five days of discovery, notice of any material
default in any material agreement to which the Company is a party;

               (vii) upon transmission, copies of all reports and communications
with any other class or series of the Company's securities, or any communication
to or from the Commission (other than Regulation D and similar routine exemption
filings); and

               (viii) with reasonable promptness, such other information and
data as such Preferred Stockholder may from time to time reasonably request.

          9.2 The foregoing financial statements shall be prepared on a
consolidated basis with the Company's subsidiaries. The financial statements
delivered pursuant to clauses (ii) and (iii) of Section 9.1 shall be accompanied
by a certificate of the chief financial officer of the Company stating that such
statements have been prepared in accordance with generally accepted accounting
principles consistently applied (except as noted) and fairly present the
financial condition and results of operations of the Company at the date thereof
and for the periods covered thereby.

          10. Term and Termination.

          10.1 Term. This Agreement shall continue in full force and effect from
the date hereof through the earliest of the following dates, on which date it
shall terminate in its entirety:

<PAGE>

               (a) the effective time of the closing of the Initial Public
          Offering (as such term is defined in the Company's Registration Rights
          Agreement of even date herewith); and

               (b) the effective time of the closing of a sale, lease or other
          disposition of all or substantially all of the Company's assets
          (including the exclusive irrevocable licensing of all of the Company's
          intellectual property for a third party) or the Company's merger into
          or consolidation with any other corporation or other entity, or any
          other corporate reorganization, in which the holders of the Company's
          outstanding voting stock immediately prior to such transaction own,
          immediately after such transaction, securities representing less than
          fifty percent (50%) of the voting power of the corporation or other
          entity surviving such transaction, provided that this Section 10.1(b)
          shall not apply to a merger effected exclusively for the purpose of
          changing the domicile of the Company.

          11. Miscellaneous.

          11.1 Governing Law. This Agreement shall be governed by and construed
under the laws of the State of Delaware, without regard to principles of
conflicts of laws.

          11.2 Amendment and Waiver. This Agreement may be amended or terminated
and the observance of any term of 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,
the holders of a majority of the Preferred Stock and the holders of a majority
of the Common Stock, provided, however (a) Exhibit A hereto may be amended by
the Company from time to time in accordance with Section 12.07 of the Preferred
Stock Purchase Agreement of even date herewith (the "Purchase Agreement") to add
information regarding Additional Investors (as defined in the Purchase
Agreement) without the consent of the other parties hereto, (b) Exhibit B hereto
may be amended by the Company from time to time to add information regarding
additional Stockholders made party to this Agreement pursuant to Section 8
hereof without the consent of the other parties hereto, and (c) this Agreement
may not be amended or terminated and the observance of any term hereunder may
not be waived with respect to any Stockholder without the written consent of
such Stockholder unless such amendment, termination or waiver applies to all
Stockholders in the same fashion (it being agreed that a waiver or amendment of
the provisions of this Agreement shall be deemed to apply to all Stockholders in
the same fashion if such waiver or amendment does so by its terms,
notwithstanding the fact that certain Stockholders are affected differently by
virtue of differences in their shareholdings). 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 11.2 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.

<PAGE>

          11.3 Assignment of Rights. This Agreement and the rights and
obligations of the parties hereunder shall inure to the benefit of, and be
binding upon, their respective successors, assigns and legal representatives.

          11.4 Notices. All notices required or permitted hereunder shall be in
writing and shall be deemed effectively given: (i) upon personal delivery to the
party to be notified, (ii) when sent by confirmed facsimile if sent during
normal business hours of the recipient; if not, then on the next business day,
(iii) five (5) days after having been sent by certified mail, return receipt
requested, postage prepaid, or (iv) one (1) day after deposit with a nationally
recognized overnight courier, specifying next day delivery, with written
verification of receipt. All communications shall be sent to the party to be
notified at the address as set forth on the signature page to the Purchase
Agreement or at such other address as such party may designate by ten (10) days
advance written notice to the Company.

          11.5 Severability. In the event one or more of the provisions of this
Agreement should, for any reason, be held to be invalid, illegal or
unenforceable in any respect, such invalidity, illegality, or unenforceability
shall not affect any other provisions of this Agreement, and this Agreement
shall be construed as if such invalid, illegal or unenforceable provision had
never been contained herein.

          11.6 Entire Agreement. This Agreement and the Exhibits hereto
constitute the full and entire understanding and agreement between the parties
with regard to the subjects hereof and no party shall be liable or bound to any
other in any manner by any representations, warranties, covenants and agreements
except as specifically set forth herein and therein.

          11.7 Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

          11.8 Conflicting Agreements. Each Stockholder represents and warrants
to the Company and the other Stockholders that it is not a party to or bound by
any agreement relating to the voting of its Shares or that otherwise directly or
indirectly conflicts with the provisions of this Agreement, other than the
Preferred Stock Voting Agreement and the Common Stock Voting Agreement of even
date herewith. The Stockholders agree not to enter into any agreement with any
other Stockholder relating to the voting of Shares, and agree not to amend the
Preferred Stock Voting Agreement or the Common Stock Voting Agreement, on terms
that conflict with the terms of this Agreement. In the event of a conflict
between the provisions of this Agreement and the provisions of any other
agreement to which any Stockholder is bound, then, as among parties to this
Agreement, the terms of this Agreement shall control.

                            [Signature Page Follows]
<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Stockholders
Agreement as of the date above first written.

                                        ORBCOMM INC.

                                        By: /s/ Don Franco
                                            ------------------------------------
                                        Name: Don Franco
                                        Title: Co-Chief Executive Officer

                                        THE INVESTORS:

                                        SES GLOBAL, S.A.

                                        By: /s/ Robert Bednarek
                                            ------------------------------------
                                        Name: Robert Bednarek
                                        Title: Executive Vice President,
                                               Corporate  Development

                                        By: /s/ Juerqen Schulte
                                            ------------------------------------
                                        Name: Juerqen Schulte
                                        Title: Chief Financial Officer

                                        RIDGEWOOD SATELLITE LLC

                                        By: Ridgewood Venture Management
                                            Corporation, its Manager

                                        By: /s/ Robert L. Gold
                                            ------------------------------------
                                        Name: Robert L. Gold
                                        Title: President

                                        SAGAMORE HILL HUB FUND LTD.

                                        By: Sagamore Hill Capital Management
                                            L.P., Investment Manager

                                        By: /s/ Steven H. Bloom
                                            ------------------------------------
                                        Name: Steven H. Bloom
                                        Title: President

                 (Signature page to the Stockholders Agreement)
<PAGE>

                                        NORTHWOOD VENTURES LLC

                                        By: /s/ Peter G. Schiff
                                            ------------------------------------
                                        Name: Peter G. Schiff
                                        Title: President

                                        NORTHWOOD CAPITAL PARTNERS LLC

                                        By: /s/ Peter G. Schiff
                                            ------------------------------------
                                        Name: Peter G. Schiff
                                        Title: President

                                        OHB TECHNOLOGY AG

                                        By: /s/ Marco Fuchs
                                            ------------------------------------
                                        Name: Marco Fuchs
                                        Title: Chief Executive Officer

              (Signature page to the Registration Rights Agreement)
               (Additional Counterpart Signature Pages to Follow)
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Arthur S. Bahr
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Arthur S. Bahr
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             DIETER H. BERGHOEFER
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Dieter H. Berghoefer
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             BUKFENC INC.
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Andrew Gaspar
           -----------------------------
Name: ANDREW GASPAR
Title: PRESIDENT

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Steven Chrust IRA
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Steven G. Chrust
           -----------------------------
Name: Steven G. Chrust
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             STEVEN G. CHRUST
                              (please print)
Notice Address of Investor:
                              -----------------------------
   (please complete)
                              -----------------------------

Signed by: /s/ Steven G. Chrust
           -----------------------------
Name: STEVEN G. CHRUST
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             MARY HIGGINS CLARK
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Mary Higgins Clark
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             PATRICK CLIFFORD
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Patrick Clifford
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             BERT R. COHEN
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Bert R. Cohen
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             JOHN CONNELLY
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ John Connelly
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             CRYSTAL LAKE PTS
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Signatre Illegible
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             JAMES EAGAN
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ James Eagan
           -----------------------------
Name: JAMES EAGAN
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             RBC FBO E.B. GRISWOLD IRA
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Signature Illegible
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

RBC Dain Rauscher

/s/ Mary Anne Grindatti
----------------------------------------
Mary Anne Grindatti
Managing Director

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             E B GRISWOLD IRA
                              (please print)

Notice Address of Investor:
                              ------------------------------
   (please complete)
                              ------------------------------

Signed by: /s/ E B Griswold IRA
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

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

Notice Address of Investor:
     (please complete)

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

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             MARC EISENBERG
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Marc Eisenberg
           -----------------------------
Name:  MARC EISENBERG
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Estrin New Ventures LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Melvyn J. Estrin
           -----------------------------
Name: Melvyn J. Estrin
Title: Managing Member

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             EVE CHRUST 2001 BUSINESS TRUST
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Steven Chrust
           -----------------------------
Name: STEVEN CHRUST
Title: TRUSTEE

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Don Franco
                              (please print)

Notice Address of Investor:
   (please complete)

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

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             JOHN FRANCO & MARY FRANCO
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ John Franco /s/ Mary Franco
           -------------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Mark Freitas
                              (please print)

Notice Address of Investor:
                              ------------------------------
   (please complete)
                              ------------------------------

Signed by: /s/ Mark Freitas
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             JOEL FRIEDMAN
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Joel Friedman
           -----------------------------
Name: JOEL FRIEDMAN
Title: CHAIRMAN
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Michael Friedman
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Michael Friedman
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             MARILYN GORDON
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Marilyn Gordon
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             RONALD GORDON MARILYN GORDON
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Ronald Gordon /s/ Marilyn Gordon
           -------------------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             EDMUND GREENE
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Edmund Greene
           -----------------------------
Name: EDMUND GREENE
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             E. BULKELEY GRISWOLD
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ E Bulkeley Griswold
           -----------------------------
Name: E BULKELEY GRISWOLD
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             JAMES H. HIGBY
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/  James H. Higby
           -----------------------------
Name: JAMES H. HIGBY
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Hoboken Partners I LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Alejandro San Miguel
           -----------------------------
Name: Alejandro San Miguel
Title: Managing Member

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             HANS E.W. HOFFMANN
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Hans Hoffmann
           -----------------------------
Name: HOFFMANN
Title: SIGNATURE ILLEGIBLE

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             WILLIAM JAFFE
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ William Jaffe
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Douglas Jones
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Douglas Jones
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Jerry Kay
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Jerry Kay
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Korea Orbcomm
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Hyung Jin Song
           -----------------------------
Name: Hyung Jin Song
Title: Chairman

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             John Levinson
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ John Levinson
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             LIZA CHRUST 2001 BUSINESS TRUST
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Steven Chrust
           -----------------------------
Name: STEVEN CHRUST
Title: TRUSTEE

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             PHILIP H. LODEWICK
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Philip H. Lodewick
           -----------------------------
Name: PHILIP H. LODEWICK
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Robert Loud
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Robert Loud
           -----------------------------
Name: Robert Loud
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Christopher Lust
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Christopher Lust
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             H. MELCHERS
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ H. Melchers
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Miller & Wrubel Asset Company
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ David F. Wrubel
           -----------------------------
Name: David F. Wrubel
Title: General Partner

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Nakoma Investments. LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Irwin F. Smith
           -----------------------------
Name: IRWIN F. SMITH
Title: Senior Managing Director
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             DENIS NAYDEN
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Denis Nayden
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Albert G. Nickel
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Albert G. Nickel
           -----------------------------
Name: Albert G. Nickel
Title: Owner

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Northwood Capital Partners LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Peter G. Schiff
           -----------------------------
Name: Peter G. Schiff
Title: President

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Northwood Ventures LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Peter G. Schiff
           -----------------------------
Name: Peter G. Schiff
Title: President

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             OAKWOOD CAPITAL, LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Oden Sten
           -----------------------------
Name: ODEN STEN
Title: Managing Director

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             OHB Technology AG
                              (please print)

Notice Address of Investor:
                              ---------------------------
   (please complete)
                              ---------------------------

Signed by: /s/ Signature Illegible
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Orbcomm Asia Limited
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Hyung Jin Song
           -----------------------------
Name: Hyung Jin Song
Title: CEO

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             ORBCOMM ASSET HOLDINGS LTD
                              (please print)

Notice Address of Investor:
                              ---------------------------
   (please complete)
                              ---------------------------

Signed by: /s/ Don Franco
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Orbcomm Deutschland AG
                              (please print)

Notice Address of Investor:
                              ---------------------------
   (please complete)
                              ---------------------------

Signed by: /s/ M. Fuchs
           -----------------------------
Name: M. FUCHS
Title: CEO

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             OC GLOBAL LIQUIDATING TRUST
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Carol P. Hanna
           -----------------------------
Name: CAROL P. HANNA
Title: LIQUIDATING TRUSTEE
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             ORBCOMM HOLDINGS LLC
                              (please print)

Notice Address of Investor:
                              --------------------------
(please complete)
                              --------------------------

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

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             A. Alex Porter
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ A. Alex Porter
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

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

Notice Address of Investor:
   (please complete)

Signed by: /s/ Peter G. Schiff
           -----------------------------
Name: Peter G. Schiff
Title: Trustee

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Jeffrey Riecker
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Jeffrey Riecker
           -----------------------------
Name: JEFFREY RIECKER
Title: INVESTOR

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Dr. Andre-Michael Schultz
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Andre-Michael Schultz
           -----------------------------
Name: Dr. Andre-Michael Schultz
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             ROBERT J. SCHULTZ
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Robert Schultz
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             SHIPPAN FUND, LLC
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Steven Chrust
           -----------------------------
Name: STEVEN CHRUST
Title: MANAGING MEMBER

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             SK Partners
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Peter G. Schiff
           -----------------------------
Name: Peter G. Schiff
Title: Managing General Partner

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             MURRAY SLIMOWITZ
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Murray Slimowitz
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Hyung Jin Song
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Hyung Jin Song
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Walter H. Sonnenfeldt
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Walter H. Sonnenfeldt
           -----------------------------
Name: Walter H. Sonnenfeldt
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Elizabeth Steele
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Elizabeth Steele
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Hans Steininger
                              (please print)

Notice Address of Investor:
   (please complete)

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

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Daniel J. Sullivan
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Daniel J. Sullivan
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Mark Sullivan
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Mark Sullivan
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             Michael Sullivan
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Michael Sullivan
           -----------------------------
Name: Michael Sullivan
Title:
       ---------------------------------

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             WILLIAM VANDEN HEUVEL
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ William Vanden Heuvel
           -----------------------------
Name: William Vanden Heuvel
Title: Investor

<PAGE>

            THIS IS A COUNTERPART SIGNATURE PAGE TO THE STOCKHOLDERS
        AGREEMENT OF ORBCOMM INC, DATED AS OF FEBRUARY 17, 2004, BETWEEN
             ORBCOMM INC., ITS COMMON STOCKHOLDERS AND ITS PREFERRED
                                  STOCKHOLDERS.

Name of Investor:             HENRY T. WILSON
                              (please print)

Notice Address of Investor:
   (please complete)

Signed by: /s/ Henry T. Wilson
           -----------------------------
Name:
      ----------------------------------
Title:
       ---------------------------------
<PAGE>

                                    EXHIBIT A

                          Amended as of August 13, 2004

                         LIST OF PREFERRED STOCKHOLDERS

<TABLE>
<CAPTION>
       NAME OF PREFERRED STOCKHOLDER            SHARES
       -----------------------------          ---------
<S>                                           <C>
Albert Nickel                                    70,373
A. Alex Porter                                  149,402
Arthur Bahr                                      10,553
Bert Cohen                                      117,400
Bukenc Inc.                                      94,992
Christopher Lust                                 21,107
Crystal Lake Partners                            92,201
Daniel Sullivan                                  42,213
Denis Nayden                                    158,453
Don Franco                                      217,696
Doug Jones                                        9,673
E. Anderson Griswold IRA                         22,867
E. Bulkeley Griswold                             41,343
E. Bulkeley Griswold IRA                          9,673
Edmund B. Greene                                 51,015
Elizabeth Steele                                 22,868
Estrin New Ventures LLC                         102,975
Eve Chrust Trust                                  5,102
Hyung-Jin Song                                   61,909
Henry Wilson                                     15,834
Hans Steininger                                  99,452
Hoboken Partners 1 LLC                          106,449
James Higby                                      38,694
Jeffrey Riecker                                  11,673
Jerome B. Eisenberg                             183,425
Jerry Kay                                        19,241
Joel Friedman                                     8,802
John Connelly                                    50,310
John Levinson                                    84,429
Liza Chrust Trust                                 5,102
Marc Eisenberg                                   21,108
Marilyn Gordon                                   17,941
Mark Sullivan                                   182,961
Mary Higgins Clark                              100,257
Michael Friedman                                 84,429
Mike Sullivan                                    22,868
Miller & Wrubel Asset Company                    94,878
Nakoma Investments LLC                          142,499
</TABLE>

<PAGE>

<TABLE>
<S>                                           <C>
Northwood Capital Partners LLC                  241,638
Northwood Ventures LLC                        1,093,297
Oakwood Capital LLC                              47,494
OHB Technology A.G.                           1,844,314
Patrick A. Clifford                              29,020
Paul Masters IRA                                 77,387
Phillip Lodewick                                 43,973
Richard K. Webel Trust                           10,553
Ridgewood Satellite LLC                       2,256,856
Robert Loud IRA                                   9,673
Robert Schultz                                   43,251
Ron & Marilyn Gordon, JTWROS                     17,934
Sagamore Hill Hub Fund Ltd.                   1,504,571
SES Global S.A.                               3,000,001
Shippan Fund LLC                                 29,909
SK Partners                                      42,213
Murray Slimowitz IRA                              9,673
Steven Chrust                                     3,870
Steven Chrust IRA                                30,515
William Jaffe                                    40,463
William Vanden Heuvel                            87,394
Pershing, LLC tax id # 132741729 as
   custodian F/B/O IRA FBO EMMETT HUME, IRA      75,915
FBO David D. Hume                                65,140
FBO Cara L. Hume                                 65,140
Emmett Hume                                       5,281
Estrin New Ventures II LLC                       11,900
Walter Sonnenfeldt                               35,211
Henning Melchers                                 25,799
Andre-Michael Schultz                            20,337
Hans E. W. Hoffmann                              10,744
John & Mary Franco                               34,180
</TABLE>

<PAGE>

                                    EXHIBIT B

                           LIST OF COMMON STOCKHOLDERS

<TABLE>
<CAPTION>
       NAME OF COMMON STOCKHOLDER            SHARES
       --------------------------          ---------
<S>                                        <C>
John & Mary Franco, Tenants in Common        325,820
Don Franco                                   401,870
Jerome B. Eisenberg                           87,359
OHB Technology A.G.                          413,352
Liquidating Trust of Orbcomm Global L.P.     500,000
ORBCOMM Holdings LLC*                      6,758,500
                                           ---------
   Total:                                  8,486,901
                                           =========
</TABLE>

*    Subject only to the receipt of requisite prior consent from the FCC,
     ORBCOMM Holdings LLC shall distribute the shares of Common Stock to its
     members who have executed a counterpart to this Agreement, the Common Stock
     Voting Agreement (as defined in the Stock Purchase Agreement, dated as of
     February 17, 2004, between ORBCOMM Inc., ORBCOMM LLC and certain Investors)
     and the Registration Rights Agreement (as defined in the Stock Purchase
     Agreement, dated as of February 17, 2004, between ORBCOMM Inc., ORBCOMM LLC
     and certain Investors). Following said distribution (assuming all members
     of ORBCOMM Holdings LLC are distributed shares), the Common Stockholders
     shall be as set forth in the following table:

<TABLE>
<CAPTION>
       NAME OF COMMON STOCKHOLDER            SHARES
       --------------------------          ---------
<S>                                        <C>
John & Mary Franco, Tenants in Common        325,820
Don Franco                                 1,473,282
Jerome B. Eisenberg                          622,019
OHB Technology A.G.                        1,182,100
Liquidating Trust of Orbcomm Global L.P.     500,000
ORBCOMM Asset Holdings Ltd.                1,714,526
Orbcomm Asia Limited                       1,179,882
Walter H. Sonnenfeldt                         69,041
Miller & Wrubel Asset Company                 60,035
ORBCOMM Deutschland A.G.                     114,835
Hyung-Jin Song                               201,087
James Eagan                                   90,804
Northwood Ventures LLC                       255,151
Northwood Capital Partners LLC                45,027
Hans Steininger                              165,097
Raimund Koenig                               120,071
Henning Melchers                              90,053
Andre-Michael Schultz                         30,018
Harald D. Berghoefer                          90,053
Hans E. W. Hoffmann                           60,035
Korea Orbcomm Ltd.                            97,965
                                           ---------
   Total:                                  8,486,901
                                           =========
</TABLE>

<PAGE>

                                    EXHIBIT C

                  SCHEDULE OF MEMBERS OF ORBCOMM ASSET HOLDINGS

<TABLE>
<CAPTION>
          SHAREHOLDER             SHARES
          -----------            --------
<S>                              <C>
Don Franco                       1,473.75
James Eagan                        151.25
Jerome B. Eisenberg                788.75
Miller & Wrubel Asset Company      100.00
Northwood Capital Partners LLC      75.00
Northwood Ventures LLC             425.00
Walter H. Sonnenfeldt              115.00
                                 --------
   Total:                        3,128.75
                                 ========
</TABLE><PAGE>

                                                                    EXHIBIT 10.1

                                      *** TEXT OMITTED AND FILED SEPARATELY
                                          CONFIDENTIAL TREATMENT REQUESTED
                                          UNDER 17 C.F.R. SECTIONS 200.80(b)(3),
                                          200.80(b)(4) and 230.406

<TABLE>
<S>                                         <C>
SOLICITATION, OFFER AND AWARD               1. THIS CONTRACT IS A RATED ORDER      RATING      PAGE 1 OF 5 PAGES
                                               UNDER DPAS (15 CRF 700)

2. CONTRACT NUMBER  3. SOLICITATION NUMBER  4. SOLICITATION TYPE  5. DATE ISSUED  6. REQUISITION/PURCHASE NUMBER
HSCG23-04-C-ADA001  HSCG23-04-R-ADA001      [ ] SEALED BID (IFB)
                                            [X] NEGOTIATED BID (RFP)  04/15/2004      2404234ADA001

7. ISSUED BY  CODE  234                          8. ADDRESS OFFER TO (If other than Item 7)

COMMANDANT (G-ACS-4) USCG HQ
2100 2ND ST S.W. RM 5212
WASHINGTON DC 205930001

NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder"

                                                  SOLICITATION

9. Sealed offers in original and ___________ copies for furnishing the supplies or services in the Schedule will
be received at the place specified in Item 8, or if

  hand carried, in the depository located in ________________________, until ____________________ local time
_______________________                                                             (Hour)
         (Date)

CAUTION: LATE Submissions, Modifications and Withdrawals: See Section L, Provision No. 52.214-7 or 52.215-1. All
offers are subject to all terms and conditions contained in this solicitation.

   10. FOR     A. NAME                 B. TELEPHONE (NO COLLECT CALLS)  C. E-MAIL ADDRESS
 INFORMATION                           -------------------------------
     CALL      LINDA DEARING           AREA CODE   NUMBER       EXT.    ldearing@comdt.uscg.mil
                                          202     267-0227

                                              11. TABLE OF CONTENTS

[X]  SEC.  DESCRIPTION                          PAGE(S)  [X]  SEC.  DESCRIPTION                               PAGE(S)

     PART I - THE SCHEDULE                                    PART II - CONTRACT CLAUSES

[X]    A   SOLICITATION/CONTRACT FORM              3     [X]    I   CONTRACT CLAUSES                              8
[X]    B   SUPPLIES OR SERVICES AND PRICE/COST     1          PART III - LIST OF DOCUMENTS,
                                                              EXHIBITS AND  OTHER ATTACH.
[X]    C   DESCRIPTION/SPECS./WORK STATEMENT       8     [X]    J   LIST OF ATTACHMENTS                          31
[X]    D   PACKAGING AND MARKING                   1          PART IV - REPRESENTATIONS AND
                                                              INSTRUCTIONS
[X]    E   INSPECTION AND ACCEPTANCE               1     [ ]    K   REPRESENTATIONS, CERTIFICATIONS AND
                                                                    OTHER STATEMENTS OF OFFERORS
[X]    F   DELIVERIES OR PERFORMANCE               1
[X]    G   CONTRACT ADMINISTRATION DATA            2     [ ]    L   INSTR., CONDS., AND NOTICES TO OFFERORS
[X]    H   SPECIAL CONTRACT REQUIREMENTS           1     [ ]    M   EVALUATION FACTORS FOR AWARD

                                   OFFER (MUST BE FULLY COMPLETED BY OFFEROR)

NOTE: Item 12 does not apply if the solicitation includes the provisions at 52.214-16, Minimum Bid Acceptance
Period.

12.  In compliance with the above, the undersigned agrees. If this offer is accepted within ___________________
     calendar days (60 calendar days unless a different period is inserted by the offeror) from the date for
     receipt of offers specified above, to furnish any or all Items upon which prices are offered at the price
     set opposite each Item, delivered at the designated point(s), within the time specified in the schedule.

13.  DISCOUNT FOR PROMPT     10 CALENDAR DAYS (%)  20 CALENDAR DAYS (%)  30 CALENDAR DAYS (%)  CALENDAR DAYS (%)
     PAYMENT
     (See Section I, Clause
     No. 52-232-8)

14.  ACKNOWLEDGMENT OF              AMENDMENT NO.              DATE             AMENDMENT NO.           DATE
     AMENDMENTS
     (The offeror            __________________________  ________________  ______________________  _____________
     acknowledges receipt    __________________________  ________________  ______________________  _____________
     of amendments to the
     SOLICITATION for
     offerors and related
     documents numbered and
     dated):

                   CODE      146118901  FACILITY  16. NAME AND TITLE OF PERSON AUTHORIZED TO SIGN OFFER
15A. NAME                                         (Type or print)     Jerome B. Eisenberg
     AND      Sub:                                                    Chief Executive Officer
     ADDRESS  ORBCOMM, INC
     OF       Attn: Jerome Eisenberg
     OFFEROR  21700 Atlantic Blvd
              Dulles VA 22102

15B. TELEPHONE NUMBER          15C. CHECK IF REMITTANCE ADDRESS IS  17. SIGNATURE       18. OFFER DATE
-------------------------  [ ] DIFFERENT FROM ABOVE - ENTER SUCH    /s/ Jerome B. Eisenberg May 20, 2004
AREA CODE   NUMBER   EXT.      ADDRESS IN SCHEDULE.
   703     433-6300

                                      AWARD (TO BE COMPLETED BY GOVERNMENT)

19. ACCEPTED AS TO ITEMS NUMBERED    20. AMOUNT         21. ACCOUNTING AND APPROPRIATION
                                     $7,806,475.00      See schedule

22. AUTHORITY FOR USING OTHER THAN FULL AND OPEN COMPETITION:    23. SUBMIT INVOICES TO ADDRESS SHOWN IN    ITEM
[ ] 10 U.S.C. 2304(c) (___) [X] 41 U.S.C. 253(c) (1___)          (4 copies unless otherwise specified)       7

24. ADMINISTERED BY (If other than Item 7)       CODE 234        25. PAYMENT WILL BE MADE BY      CODE       234
See schedule G                                                   See schedule G

26. NAME OF CONTRACTING OFFICER (Type or print)                  27. UNITED STATES OF AMERICA     28. AWARD DATE
LINDA B. DEARING                                                                                  05/20/2004
                                                                  /s/ Linda B. Dearing
                                                                  -------------------
                                                                 (Signature of Contracting
                                                                 Officer)

IMPORTANT - Award will be made on this Form, or on Standard Form 26, or by other authorized official written
notice.

AUTHORIZED FOR LOCAL REPRODUCTION                                                   STANDARD FORM 33 (REV. 9-87)
Previous edition is unusable                                          Prescribed by GSA - FAR (48 CFR) 53.214(c)
</TABLE>

<PAGE>

CONTINUATION SHEET     REFERENCE NO. OF DOCUMENT BEING               PAGE 2 OF 5
                       CONTINUED HSCG23-04-C-ADA001

NAME OF OFFEROR OR CONTRACTOR
ORBCOMM, INC.

<TABLE>
<CAPTION>
ITEM NO.                       SUPPLIES/SERVICES                      QUANTITY   UNIT    UNIT PRICE       AMOUNT
  (A)                                (B)                                 (C)      (D)        (E)            (F)
--------                       -----------------                      --------   ----   ------------   ------------
<S>        <C>                                                        <C>        <C>    <C>            <C>
           This is a firm-fixed price contract with optional items.
           Admin Office:
              COMMANDANT (G-ACS-4) USCG HQ
              2100 2ND ST S.W. RM 5212
              WASHINGTON DC 205930001
           Mail Invoice To:
              COMMANDANT (G-ACS-4) USCG HQ
              2100 2ND ST S.W. RM 5212
              WASHINGTON DC 205930001
           FOB: Destination
           Discount Terms:
                 Net 30
           Period of Performance: 05/20/2004 to 05/19/2009

  00001    All work associated with the Concept Validation Payload      1.00      JB    7,105,564.00   7,105,564.00
           through launch IAW the attached statement of work and
           the contractor's proposal (Revision D) dated 19 May 2004
           Period of Performance for this CLIN is 20 May 2004
           through 31 December 2006
           Obligated Amount: $7,105,564.00
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

  00002    Operational evaluation and maintenance of the Concept        1.00      JB      380,068.00     380,068.00
           Validation Payload after launch IAW the attached
           statement of work and the contractor's proposal
           (Revision D) dated 19 May 2004 Period of Performance for
           this CLIN is 1 January 2005 through 31 December 2006
           Obligated Amount: $380,068.00
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK

 00002A    Recurring Service (Base Period)
           Option 1 - Low Usage IAW the attached statement of work      1.00      JB      198,000.00     198,000.00
           and the contractor's proposal (Revision D) dated 19 May
           2004
           Period of Performance for this CLIN is 31 October 2005
           through 31 December 2006

           SUBCLIN PRICE: $198,000
           Obligated Amount: $198,000.00
           Continued...
</TABLE>

                                                        OPTIONAL FORM 336 (4-56)
                                                                Sponsored by GSA
                                                             FAR (48 CFR) 53 110

<PAGE>

CONTINUATION SHEET     REFERENCE NO. OF DOCUMENT BEING               PAGE 3 OF 5
                       CONTINUED HSCG23-04-C-ADA001

NAME OF OFFEROR OR CONTRACTOR
ORBCOMM, INC.

<TABLE>
<CAPTION>
ITEM NO.                       SUPPLIES/SERVICES                      QUANTITY   UNIT    UNIT PRICE       AMOUNT
   (A)                                (B)                                (C)      (D)       (E)             (F)
--------                       -----------------                      --------   ----   ------------   ------------
<S>        <C>                                                        <C>        <C>    <C>            <C>
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF. TASK-

 00002B    Recurring Service (Base Period)                              1.00      JB
           Option 2 - Medium Usage IAW the attached statement of
           work and the contractor's proposal (Revision D) dated 19
           May 2004
           Period of Performance for this CLIN (if exercised) is 31
           October 2005 through 31 December 2006

           SUBCLIN PRICE: $396,000
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

 00002C    Recurring Service (Base Period)                              1.00      JB
           Option 3 - High Usage IAW the attached statement of work
           and the contractor's proposal (Revision D) dated 19 May
           2004
           Period of Performance for this CLIN (if exercised) is 31
           October 2005 through 31 December 2006

           SUBCLIN PRICE: $594,000
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

  00003    All work associated with the Design of the AIS portion       1.00      JB      122,843.00     122,843.00
           of the planned ORBCOMM constellation replenishment
           satellites IAW the attached statement of work and the
           contractor's proposal (Revision D) dated 19 May 2004
           Period of Performance for this CLIN is 20 May 2004
           through 31 December 2004

           Obligated Amount: $122,843.00
           Accounting Info:
           2A6K  099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK

           Continued...
</TABLE>

                                                        OPTIONAL FORM 336 (4-56)
                                                                Sponsored by GSA
                                                             FAR (48 CFR) 53 110

<PAGE>

CONTINUATION SHEET     REFERENCE NO. OF DOCUMENT BEING               PAGE 4 OF 5
                       CONTINUED HSCG23-04-C-ADA001

NAME OF OFFEROR OR CONTRACTOR
ORBCOMM, INC.

<TABLE>
<CAPTION>
ITEM NO.                       SUPPLIES/SERVICES                      QUANTITY   UNIT    UNIT PRICE       AMOUNT
   (A)                                (B)                                (C)      (D)        (E)            (F)
--------                       -----------------                      --------   ----   ------------   ------------
<S>        <C>                                                        <C>        <C>    <C>            <C>
  00004    OPTION: Operational evaluation and maintenance of the        1.00      JB
           Concept Validation Payload after launch IAW the attached
           statement of work (one-year optional period) and the
           contractor's proposal (Revision D) dated 19 May 2004
           Period of Performance for this CLIN (if exercised) is 1
           January 2007 through 31 December 2007

           CLIN PRICE: $397,913
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

 00004A    Recurring Service (Option Year)                              1.00      JB
           Option 1-Low Usage IAW the attached statement of work
           and the contractor's proposal (Revision D) dated 19 May
           2004
           Period of Performance for this CLIN (if exercised) is 1
           January 2007 through 31 December 2007

           SUBCLIN PRICE: $198,000
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

 00004B    Recurring Service (Option Year)                              1.00      JB
           Option 2 - Medium Usage IAW the attached statement of
           work and the contractor's proposal (Revision D) dated 19
           May 2004
           Period of Performance for this CLIN (if exercised) is 1
           January 2007 through 31 December 2007

           SUBCLIN PRICE: $396,000
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K 099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

  0004C    Recurring Service (Option Year)                              1.00      JB
           Option 3 - High Usage IAW the attached statement of work
           and the contractor's proposal (Revision D) dated 19 May
           2004
           Period of Performance for this CLIN (if Continued...
</TABLE>

                                                        OPTIONAL FORM 336 (4-56)
                                                                Sponsored by GSA
                                                             FAR (48 CFR) 53 110

<PAGE>

CONTINUATION SHEET     REFERENCE NO. OF DOCUMENT BEING               PAGE 5 OF 5
                       CONTINUED HSCG23-04-C-ADA001

NAME OF OFFEROR OR CONTRACTOR
ORBCOMM, INC.

<TABLE>
<CAPTION>
ITEM NO.                       SUPPLIES/SERVICES                      QUANTITY   UNIT    UNIT PRICE       AMOUNT
   (A)                                (B)                                (C)      (D)        (E)            (F)
--------                       -----------------                      --------   ----   ------------   ------------
<S>        <C>                                                        <C>        <C>    <C>            <C>
           exercised) is 1 January 2007 through 31 December 2007

           SUBCLIN PRICE: $594,000
           Amount: $0.00 (Option Line Item)
           Accounting Info:
           2A6K  099000465001-70372-255F-MDA/ORBCOMM-DEF.
           TASK-

           The total ceiling of this contract is $8,994,475, which
           includes CLINS 0001, 0002, 0002C (the highest priced
           SUBCLIN in the 0002 series), 0003, 0004, and 0004C (the
           highest priced SUBCLIN in the 0004 series).

           Total amount of award: $7,806,475.00. The obligation for
           this award is shown in box 20.
</TABLE>

                                                        OPTIONAL FORM 336 (4-56)
                                                                Sponsored by GSA
                                                             FAR (48 CFR) 53 110

<PAGE>

                              PART I - THE SCHEDULE

                     SECTION B - SUPPLIES OR SERVICES/PRICES

B.1 SUPPLIES OR SERVICES

This contract is to obtain Contractor technical capability and management
support services to develop the capability to receive, process and forward the
Automatic Identification System (AIS) signal via spacecraft and their associated
ground systems in accordance with the Statement of Work (SOW) in Section C. The
Contractor is responsible for providing all facilities, materials, equipment,
and labor unless otherwise directed in the SOW.

B.2 This contract is a firm-fixed price contract.

B.3 See page 2 of the SF 33 for the Contract Line Items and Prices.

<PAGE>

                              PART I - THE SCHEDULE
            SECTION C - DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK

      CONTRACTOR TECHNICAL CAPABILITY AND MANAGEMENT SUPPORT SERVICES FOR
              US COAST GUARD AUTOMATIC IDENTIFICATION SYSTEM (AIS)

1.0     GENERAL.

1.1     SCOPE.  [***]

1.2     BACKGROUND.  [***]

1.3     CONTRACTOR PERSONNEL.  [***]

1.4     KEY PERSONNEL.  [***]

1.5     SECURITY.  [***]

1.6     PERIOD OF PERFORMANCE.  [***]

1.7     PLACE OF PERFORMANCE.  [***]

1.8     HOURS OF OPERATION.  [***]

1.9     TRAVEL.  [***]

1.10    KICK-OFF MEETING.  [***]

1.11    PROJECT PLAN.  [***]

1.12    PROGRESS REPORTS.  [***]

1.13    PROGRESS MEETINGS.  [***]

1.14    GENERAL REPORT REQUIREMENTS.  [***]

1.15    INTELLECTUAL PROPERTY.  [***]

1.16    TELECOMMUNICATIONS LAWS.  [***]

2.0     GOVERNMENT TERMS & DEFINITIONS.  [***]

3.0     GOVERNMENT FURNISHED PROPERTY.  [***]

4.0     CONTRACTOR FURNISHED PROPERTY.  [***]

5.0     REQUIREMENTS.

5.1     PROGRAM DEFINITION  [***]

5.2     FEASIBILITY STUDY  [***]

5.3     IMPACT ANALYSIS  [***]

5.4     AIS SECONDARY SPACECRAFT PAYLOAD  [***]

5.5     DESCRIPTION OF RECEIVER/PROCESSOR.  [***]

5.6     CHANGES FROM A STANDARD COMMUNICATIONS SATELLITE PAYLOAD  [***]

5.7     SATELLITE MODIFICATIONS FOR AIS  [***]

5.8     SATELLITE GATEWAY MODIFICATIONS FOR AIS  [***]

5.9     ONGOING SUPPORT, OPERATIONS AND MAINTENANCE  [***]

5.10    RECURRING SERVICE  [***]

6.0     REFERENCES.  [***]

7.0     DELIVERABLES.  [***]

                        SECTION D - PACKAGING AND MARKING

D.1. MARKING

The Contractor submitted to the Contracting Officer or the Contracting Officer's
Representative shall clearly indicate the Contract Number of the contract for
which the information is being submitted.

D.2 PAYMENT OF POSTAGE AND FEES

All postage and fees related to submitting information including forms, reports,
etc., to the Contracting Officer or the Contracting Officer's Representative
shall be paid by the Contractor.

                              PART I - THE SCHEDULE
                      SECTION E - INSPECTION AND ACCEPTANCE

E.1 52.246-4 INSPECTION OF SERVICES - FIXED-PRICE. (AUG 1996)

                      SECTION F - DELIVERIES OR PERFORMANCE

F.1 52.242-15 STOP-WORK ORDER. (AUG 1989)

F.2 PERIOD OF PERFORMANCE. The period of performance is from 20 May 2004 through
19 May 2009.

F.3 OPTION TO EXTEND THE TERM OF THE CONTRACT. This contract also includes one
optional year for continued services for the evaluation and maintenance of the
Concept Validation Payment. This option will be exercised unilaterally in
accordance with FAR Clause 52.217-9, Option to Extend the Term of the Contract.

F.4 OPTION FOR INCREASED QUANTITY--SEPARATELY PRICED LINE ITEM. This contract
also includes separately priced line items for optional data usage for recurring
low, medium, and high usage for two separate periods. These optional items will
be exercised unilaterally in accordance with FAR Clause 52.217-7, Option for
Increased Quantity--Separately Priced Line Item. If there is a need to change
from a lower usage option upwardly within any period, a pro rated price will be
negotiated before the change is made.

                    SECTION G - CONTRACT ADMINISTRATION DATA

G.1 THE ROLE OF GOVERNMENT PERSONNEL AND RESPONSIBILITY FOR CONTRACT
ADMINISTRATION

Contracting Officer: The Contracting Officer has the overall responsibility for
the administration of this contract. She alone, without delegation, is
authorized to take actions on behalf of the Government to amend, modify or
deviate from the contract terms, conditions, requirements, specifications,
details and/or delivery schedules. However, she may delegate certain other
responsibilities to his authorized representative. The Contracting Officer's
Technical Representative (COTR) will be assigned after award of the contract.
The Contractor will receive a notification letter identifying the COTR.

G.2 ADDRESS OF CORRESPONDENCE

<PAGE>

All correspondence except as otherwise specified shall be directed to the
Contracting Officer at the address shown on the SF 33 in block 7.

G.3 PAYMENT INFORMATION

The Data Universal Numbering System (DUNS) number is the primary identifier in
Central Contractor Registration (CCR). Contractors are located and identified by
their DUNS number. To facilitate payment, it is in the contractor's best
interest to ensure that the CCR is updated at all times.

G.4 INVOICES

Invoices should be submitted to the Contracting Officer in accordance with the
Payment clauses in this contract to the address that is shown on the SF 33 in
block 7.

The Contractor may invoice on a monthly basis in accordance with FAR Clause
52.232-16 Progress Payments. The contractor shall support invoices with weekly
progress reports or other means as necessary.

                    SECTION H - SPECIAL CONTRACT REQUIREMENTS

H.1 In accordance with the Federal Acquisition Regulations, Section K,
Representations, Certifications, and Other Statement of Offerors (as completed
by the Contractor) shall be deeded incorporated by reference in the contract.

<PAGE>

                           PART II - CONTRACT CLAUSES
                          SECTION I - CONTRACT CLAUSES

52.202-1 DEFINITIONS. (DEC 2001)

52.203-3 GRATUITIES. (APR 1984)

52.203-5 COVENANT AGAINST CONTINGENT FEES. (APR 1984)

52.203-6 RESTRICTIONS ON SUBCONTRACTOR SALES TO THE GOVERNMENT. (JUL 1995)

52.203-7 ANTI-KICKBACK PROCEDURES. (JUL 1995)

52.203-8 CANCELLATION, RESCISSION, AND RECOVERY OF FUNDS FOR ILLEGAL OR IMPROPER
ACTIVITY. (JAN 1997)

52.203-10 PRICE OR FEE ADJUSTMENT FOR ILLEGAL OR IMPROPER ACTIVITY. (JAN 1997)

52.203-12 LIMITATION ON PAYMENTS TO INFLUENCE CERTAIN FEDERAL TRANSACTIONS. (JUN
2003)

52.204-2 SECURITY REQUIREMENTS. (AUG 1996)

52.204-4 PRINTED OR COPIED DOUBLE-SIDED ON RECYCLED PAPER. (AUG 2000)

52.204-7 CENTRAL CONTRACTOR REGISTRATION. (OCT 2003)

52.209-6 PROTECTING THE GOVERNMENT'S INTEREST WHEN SUBCONTRACTING WITH
CONTRACTORS DEBARRED, SUSPENDED, OR PROPOSED FOR DEBARMENT. (JUL 1995)

52.215-2 AUDIT AND RECORDS - NEGOTIATION. (JUN 1999)

52.215-8 ORDER OF PRECEDENCE - UNIFORM CONTRACT FORMAT. (OCT 1997)

52.215-10 PRICE REDUCTION FOR DEFECTIVE COST OR PRICING DATA. (OCT 1997)

52.215-11 PRICE REDUCTION FOR DEFECTIVE COST OR PRICING DATA - MODIFICATIONS.
(OCT 1997)

52.215-12 SUBCONTRACTOR COST OR PRICING DATA. (OCT 1997)

52.215-13 SUBCONTRACTOR COST OR PRICING DATA - MODIFICATIONS. (OCT 1997)

52.215-15 PENSION ADJUSTMENTS AND ASSET REVERSIONS. (JAN 2004)

52.215-18 REVERSION OR ADJUSTMENT OF PLANS FOR POSTRETIREMENT BENEFITS (PRB)
OTHER THAN PENSIONS. (OCT 1997)

52.215-19 NOTIFICATION OF OWNERSHIP CHANGES. (OCT 1997)

     (a) The Contractor shall make the following notifications in writing:

     (1) When the Contractor becomes aware that a change in its ownership has
     occurred, or is certain to occur, that could result in changes in the
     valuation of its capitalized assets in the accounting records, the
     Contractor shall notify the Administrative Contracting Officer (ACO) within
     30 days.

     (2) The Contractor shall also notify the ACO within 30 days whenever
     changes to asset valuations or any other cost changes have occurred or are
     certain to occur as a result of a change in ownership.

     (b) The Contractor shall -

<PAGE>

     (1) Maintain current, accurate, and complete inventory records of assets
     and their costs;

     (2) Provide the ACO or designated representative ready access to the
     records upon request;

     (3) Ensure that all individual and grouped assets, their capitalized
     values, accumulated depreciation or amortization, and remaining useful
     lives are identified accurately before and after each of the Contractor's
     ownership changes; and

     (4) Retain and continue to maintain depreciation and amortization schedules
     based on the asset records maintained before each Contractor ownership
     change.

     (c) The Contractor shall include the substance of this clause in all
     subcontracts under this contract that meet the applicability requirement of
     FAR 15.408(k).

(End of clause)

52.215-21 REQUIREMENTS FOR COST OR PRICING DATA OR INFORMATION OTHER THAN COST
OR PRICING DATA -MODIFICATIONS. (OCT 1997)

52.217-7 OPTION FOR INCREASED QUANTITY--SEPARATELY PRICED LINE ITEM (MAR 1989

The Government may require the delivery of the numbered line item, identified in
the Schedule as an option item, in the quantity and at the price stated in the
Schedule. The Contracting Officer may exercise the option by written notice to
the Contractor within 60 days. Delivery of added items shall continue at the
same rate that like items are called for under the contract, unless the parties
otherwise agree.

(End of clause)

52.217-8 OPTION TO EXTEND SERVICES. (NOV 1999)

The Government may require continued performance of any services within the
limits and at the rates specified in the contract. These rates may be adjusted
only as a result of revisions to prevailing labor rates provided by the
Secretary of Labor. The option provision may be exercised more than once, but
the total extension of performance hereunder shall not exceed 6 months. The
Contracting Officer may exercise the option by written notice to the Contractor
within 30 days unless otherwise mutually agreed upon.

(End of clause)

52.217-9 OPTION TO EXTEND THE TERM OF THE CONTRACT. (MAR 2000)

     (a) The Government may extend the term of this contract by written notice
     to the Contractor within 30 days unless otherwise mutually agreed upon;
     provided that the Government gives the Contractor a preliminary written
     notice of its intent to extend at least 60 days [60 days unless a different
     number of days is inserted] before the contract expires. The preliminary
     notice does not commit the Government to an extension.

     (b) If the Government exercises this option, the extended contract shall be
     considered to include this option clause.

     (c) The total duration of this contract, including the exercise of any
     options under this clause, shall not exceed 3 years 9 months.

(End of clause)

52.222-21 PROHIBITION OF SEGREGATED FACILITIES. (FEB 1999)

52.222-26 EQUAL OPPORTUNITY. (APR 2002)

52.222-35 EQUAL OPPORTUNITY FOR SPECIAL DISABLED VETERANS, VETERANS OF THE
VIETNAM ERA, AND OTHER ELIGIBLE VETERANS. (DEC 2001)

<PAGE>

52.222-36 AFFIRMATIVE ACTION FOR WORKERS WITH DISABILITIES. (JUN 1998)

52.222-37 EMPLOYMENT REPORTS ON SPECIAL DISABLED VETERANS, VETERANS OF THE
VIETNAM ERA, AND OTHER ELIGIBLE VETERANS. (DEC 2001)

52.223-6 DRUG-FREE WORKPLACE. (MAY 2001)

52.223-14 TOXIC CHEMICAL RELEASE REPORTING. (AUG 2003)

52.225-13 RESTRICTIONS ON CERTAIN FOREIGN PURCHASES. (JAN 2004)

52.225-16 SANCTIONED EUROPEAN UNION COUNTRY SERVICES. (FEB 2000)

52.227-1 AUTHORIZATION AND CONSENT. (JUL 1995)

52.227-2 NOTICE AND ASSISTANCE REGARDING PATENT AND COPYRIGHT INFRINGEMENT. (AUG
1996)

52.227-17 RIGHTS IN DATA - SPECIAL WORKS. (JUN 1987)

52.229-4 FEDERAL, STATE, AND LOCAL TAXES (STATE AND LOCAL ADJUSTMENTS). (APR
2003)

52.232-1 PAYMENTS. (APR 1984)

52.232-8 DISCOUNTS FOR PROMPT PAYMENT. (FEB 2002)

52.232-9 LIMITATION ON WITHHOLDING OF PAYMENTS. (APR 1984)

52.232-11 EXTRAS. (APR 1984)

52.232-16 PROGRESS PAYMENTS (APR 2003)

52.232-17 INTEREST. (JUN 1996)

52.232-23 ASSIGNMENT OF CLAIMS. (JAN 1986)

52.232-25 PROMPT PAYMENT. (OCT 2003)

52.232-33 PAYMENT BY ELECTRONIC FUNDS TRANSFER - CENTRAL CONTRACTOR
REGISTRATION. (OCT 2003)

52.233-1 DISPUTES. (JUL 2002)

52.233-3 PROTEST AFTER AWARD. (AUG 1996)

52.239-1 PRIVACY OR SECURITY SAFEGUARDS. (AUG 1996)

52.242-13 BANKRUPTCY. (JUL 1995)

52.243-1 CHANGES - FIXED-PRICE. (AUG 1987)

52.243-1 CHANGES - FIXED-PRICE. (AUG 1987) - ALTERNATE I (APR 1984)

52.243-7 NOTIFICATION OF CHANGES. (APR 1984)

     (a) Definitions. Contracting Officer, as used in this clause, does not
     include any representative of the Contracting Officer.

<PAGE>

Specifically Authorized Representative (SAR), as used in this clause, means any
person the Contracting Officer has so designated by written notice (a copy of
which shall be provided to the Contractor) which shall refer to this
subparagraph and shall be issued to the designated representative before the SAR
exercises such authority.

     (b) Notice. The primary purpose of this clause is to obtain prompt
     reporting of Government conduct that the Contractor considers to constitute
     a change to this contract. Except for changes identified as such in writing
     and signed by the Contracting Officer, the Contractor shall notify the
     Administrative Contracting Officer in writing promptly, within [ ] (to be
     negotiated) calendar days from the date that the Contractor identifies any
     Government conduct (including actions, inactions, and written or oral
     communications) that the Contractor regards as a change to the contract
     terms and conditions. On the basis of the most accurate information
     available to the Contractor, the notice shall state -

     (1) The date, nature, and circumstances of the conduct regarded as a
     change;

     (2) The name, function, and activity of each Government individual and
     Contractor official or employee involved in or knowledgeable about such
     conduct;

     (3) The identification of any documents and the substance of any oral
     communication involved in such conduct;

     (4) In the instance of alleged acceleration of scheduled performance or
     delivery, the basis upon which it arose;

     (5) The particular elements of contract performance for which the
     Contractor may seek an equitable adjustment under this clause, including -

               (i) What contract line items have been or may be affected by the
               alleged change;

               (ii) What labor or materials or both have been or may be added,
               deleted, or wasted by the alleged change;

               (iii) To the extent practicable, what delay and disruption in the
               manner and sequence of performance and effect on continued
               performance have been or may be caused by the alleged change;

               (iv) What adjustments to contract price, delivery schedule, and
               other provisions affected by the alleged change are estimated;
               and

     (6) The Contractor's estimate of the time by which the Government must
     respond to the Contractor's notice to minimize cost, delay or disruption of
     performance.

     (c) Continued performance. Following submission of the notice required by
     paragraph (b) of this clause, the Contractor shall diligently continue
     performance of this contract to the maximum extent possible in accordance
     with its terms and conditions as construed by the Contractor, unless the
     notice reports a direction of the Contracting Officer or a communication
     from a SAR of the Contracting Officer, in either of which events the
     Contractor shall continue performance; provided, however, that if the
     Contractor regards the direction or communication as a change as described
     in paragraph (b) of this clause, notice shall be given in the manner
     provided. All directions, communications, interpretations, orders and
     similar actions of the SAR shall be reduced to writing promptly and copies
     furnished to the Contractor and to the Contracting Officer. The Contracting
     Officer shall promptly countermand any action which exceeds the authority
     of the SAR.

     (d) Government response. The Contracting Officer shall promptly, within [ ]
     (to be negotiated) calendar days after receipt of notice, respond to the
     notice in writing. In responding, the Contracting Officer shall either -

     (1) Confirm that the conduct of which the Contractor gave notice
     constitutes a change and when necessary direct the mode of further
     performance;

     (2) Countermand any communication regarded as a change;

<PAGE>

     (3) Deny that the conduct of which the Contractor gave notice constitutes a
     change and when necessary direct the mode of further performance; or

     (4) In the event the Contractor's notice information is inadequate to make
     a decision under subparagraphs (d)(l), (2), or (3) of this clause, advise
     the Contractor what additional information is required, and establish the
     date by which it should be furnished and the date thereafter by which the
     Government will respond.

     (e) Equitable adjustments. (1) If the Contracting Officer confirms that
     Government conduct effected a change as alleged by the Contractor, and the
     conduct causes an increase or decrease in the Contractor's cost of, or the
     time required for, performance of any part of the work under this contract,
     whether changed or not changed by such conduct, an equitable adjustment
     shall be made

               (i) In the contract price or delivery schedule or both; and

               (ii) In such other provisions of the contract as may be affected.

     (2) The contract shall be modified in writing accordingly. In the case of
     drawings, designs or specifications which are defective and for which the
     Government is responsible, the equitable adjustment shall include the cost
     and time extension for delay reasonably incurred by the Contractor in
     attempting to comply with the defective drawings, designs or specifications
     before the Contractor identified, or reasonably should have identified,
     such defect. When the cost of property made obsolete or excess as a result
     of a change confirmed by the Contracting Officer under this clause is
     included in the equitable adjustment, the Contracting Officer shall have
     the right to prescribe the manner of disposition of the property. The
     equitable adjustment shall not include increased costs or time extensions
     for delay resulting from the Contractor's failure to provide notice or to
     continue performance as provided, respectively, in paragraphs (b) and (c)
     of this clause.

Note: The phrases contract price and cost wherever they appear in the clause,
may be appropriately modified to apply to cost-reimbursement or incentive
contracts, or to combinations thereof.

(End of clause)

52.244-5 COMPETITION IN SUBCONTRACTING. (DEC 1996)

52.244-6 SUBCONTRACTS FOR COMMERCIAL ITEMS. (APR 2003)

52.246-20 WARRANTY OF SERVICES. (MAY 2001)

     (a) Definition.

Acceptance, as used in this clause, means the act of an authorized
representative of the Government by which the Government assumes for itself, or
as an agent of another, ownership of existing and identified supplies, or
approves specific services, as partial or complete performance of the contract

     (b) Notwithstanding inspection and acceptance by the Government or any
     provision concerning the conclusiveness thereof, the Contractor warrants
     that all services performed under this contract will, at the time of
     acceptance, be free from defects in workmanship and conform to the
     requirements of this contract. The Contracting Officer shall give written
     notice of any defect or nonconformance to the Contractor within 90 days or
     within 1000 hours of use by the Government whichever conies first. This
     notice shall state either -

     (1) That the Contractor shall correct or reperform any defective or
     nonconforming services; or

     (2) That the Government does not require correction or reperformance.

     (c) If the Contractor is required to correct or reperform, it shall be at
     no cost to the Government, and any services corrected or reperformed by the
     Contractor shall be subject to this clause to the same extent as work
     initially performed. If the Contractor fails or refuses to correct or
     reperform, the Contracting Officer may, by contract or otherwise, correct
     or replace with similar services and charge to the Contractor the cost
     occasioned to the Government thereby, or make an equitable adjustment in
     the contract price.

<PAGE>

     (d) If the Government does not require correction or reperformance, the
     Contracting Officer shall make an equitable adjustment in the contract
     price.

(End of clause)

52.246-25 LIMITATION OF LIABILITY - SERVICES. (FEB 1997)

52.248-1 VALUE ENGINEERING. (FEB 2000)

52.249-2 TERMINATION FOR CONVENIENCE OF THE GOVERNMENT (FIXED-PRICE). (SEP 1996)

52.249-8 DEFAULT (FIXED-PRICE SUPPLY AND SERVICE). (APR 1984)

52.252-2 CLAUSES INCORPORATED BY REFERENCE. (FEB 1998)

This contract incorporates one or more clauses by reference, with the same force
and effect as if they were given in full text. Upon request, the Contracting
Officer will make their full text available. Also, the full text of a clause may
be accessed electronically at this/these address(es): http://www.arnet.gov/far/

(End of clause)

52.252-4 ALTERATIONS IN CONTRACT. (APR 1984)

Portions of this contract are altered as follows: [ ]

(End of clause)

<PAGE>

52.253-1 COMPUTER GENERATED FORMS. (JAN 1991)

DSAR 3052.242-71 DISSEMINATION OF CONTRACT INFORMATION (DEC 2003)

The Contractor shall not publish, permit to be published, or distribute for
public consumption, any information, oral or written, concerning the results or
conclusions made pursuant to the performance of this contract, without the prior
written consent of the Contracting Officer. An electronic or printed copy of any
material proposed to be published or distributed shall be submitted to the
Contracting Officer.

(End of clause)

DSAR 3052.242-72 CONTRACTING OFFICER'S TECHNICAL REPRESENTATIVE (DEC 2003)

     (a)  The Contracting Officer may designate Government personnel to act as
          the Contracting Officer's Technical Representative (COTR) to perform
          functions under the contract such as review or inspection and
          acceptance of supplies, services, including construction, and other
          functions of a technical nature. The Contracting Officer will provide
          a written notice of such designation to the Contractor within five
          working days after contract award or for construction, not less than
          five working days prior to giving the contractor the notice to
          proceed. The designation letter will set forth the authorities and
          limitations of the COTR under the contract.

     (b)  The Contracting Officer cannot authorize the COTR or any other
          representative to sign documents, such as contracts, contract
          modifications, etc., that require the signature of the Contracting
          Officer.

(End of clause)

          SECTION J - LIST OF DOCUMENTS, EXHIBITS AND OTHER ATTACHMENTS

               Attachment (1) - Contractor's proposal (Revision D)
                         dated 19 May 2004 - Pages 1-31

        Attached by Reference - Completed Representations, Certifications

<PAGE>

                     SOLICITATION NUMBER HSCG23-04-R-ADA001

                                ORBCOMM PROPOSAL

                                       FOR

                                   COAST GUARD
                      AUTOMATIC IDENTIFICATION SYSTEM (AIS)
                                   REVISION D

                                   19 MAY 2004

                                  SUBMITTED TO:

                               COMMANDANT (CG-851)
                        2100 SECOND STREET, SW, ROOM 2606
                            WASHINGTON, DC 20593-0001
                             TELEPHONE: 202-267-2285

                                  SUBMITTED BY:

(ORBCOMM(R) LOGO)                                           21700 ATLANTIC BLVD.
                                                                DULLES, VA 22102
                                                                 WWW.ORBCOMM.COM

                                                              DUNS # 146-118-901

                            DISTRIBUTION RESTRICTIONS

This proposal or quotation includes data that shall not be disclosed outside of
the Government and shall not be duplicated, used, or disclosed in whole or in
part for any purpose other than to evaluate this proposal or quotation. If,
however, a contract is awarded to this offeror or quoter as a result of or in
connection with the submission of this data, the Government shall have the right
to duplicate, use or disclose the data to the extent provided in the resulting
contract. This restriction does not limit the Government's right to use
information contained in the data if it is obtained from another source without
restriction. The data subject to this restriction is contained in sheets marked
with the following legend: "Use Or Disclosure Of Data Contained On This Sheet Is
Subject To The Restriction On The Title Page Of This Proposal."

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

                                TABLE OF CONTENTS

<TABLE>
<S>                                                                              <C>
1. EXECUTIVE SUMMARY ......................................................       1

2. OVERVIEW ...............................................................       3
   2.1 Company Background .................................................       3
   2.2 Satellites and Space Elements ......................................       4
   2.3 Ground Infrastructure ..............................................       5

3. STATEMENT OF WORK [SECTION C] ..........................................       7
   3.1  GENERAL [SECTION C: 1.0]...........................................       3
     3.1.1        Scope [Section C: 1.1] ..................................       4
     3.1.2        Background [Section C: 1.2] .............................       4
   3.2  CONTRACTOR PERSONNEL [SECTION C: 1.3]..............................       4
     3.2.1        Project Manager [Section C: 1.3.1, 1.3.1.1, 1.3.1.2] ....       4
     3.2.2        Qualified Personnel [Section C: 1.3.2] ..................       4
     3.2.3        Employee Identification [Section C: 1.3.3, 1.3.3.1] .....       5
     3.2.4        Employee Conduct [Section C: 1.3.4] .....................       5
     3.2.5        Removing Employees [Section C: 1.3.5]....................       5
     3.2.6        Conflict of Interest [Section C: 1.3.6]..................       5
     3.2.7        Key Personnel [Section C: 1.4]...........................       5
     3.2.8        Security [Section C: 1.5]................................       5
     3.2.9        Period of Performance [Section C: 1.6]...................       5
     3.2.10       Place of Performance [Section C: 1.7]....................       6
     3.2.11       Hours of Operations [Section C: 1.8].....................       6
     3.2.12       Travel [Section C:1.9]...................................       6
     3.2.13       Kick-off Meeting [Section C: 1.10].......................       6
     3.2.14       Project Plan [Section C: 1.11]...........................       6
     3.2.15       Progress Reports [Section C: 1.12].......................       6
     3.2.16       Progress Meetings [Section C: 1.13]......................       6
     3.2.17       General Report Requirements [Section C: 1.14]............       6
     3.2.18       Intellectual Property [Section C: 1.15]..................       7
     3.2.19       Telecommunications Laws..................................       7
   3.3  GOVERNMENT TERMS & DEFINITIONS [SECTION C: 2.0]....................       7
   3.4  GOVERNMENT FURNISHED PROPERTY [SECTION C: 3.0].....................       7
   3.5  CONTRACTOR FURNISHED PROPERTY [SECTION C: 4.0].....................       7
   3.6  REQUIREMENTS [SECTION C: 5.0]......................................       7
     3.6.1        Program Definition [Section C: 5.1]......................       7
     3.6.2        Feasibility Study [Section C: 5.2].......................       8
     3.6.3        Impact Analysis [Section C: 5.3, 5.3.1-7]................       9
     3.6.4        AIS Secondary Spacecraft Payload [Section C: 5.4,
                  5.4.1-4, 5.4.4.1 5] .....................................      10
     3.6.5        ORBCOMM Participation in Concept Validation Satellite ...      10
     3.6.6        ORBCOMM Development Activities...........................      12
     3.6.7        Implementation of Concept Demonstration Satellite........      12
     3.6.8        Satellite Gateway Modifications for AIS
                  [Section C: 5.8, 5.8.1]..................................      12
     3.6.9        Ongoing Support, Operations and Maintenance
                  [Section C:5.9, 5.9.1]...................................      12
     3.6.10       Recurring Service [Section C: 5.10, 5.10.1]..............      12
   3.7  REFERENCES [SECTION C: 6.0]........................................      14
   3.8  DELIVERABLES [SECTION C: 7.0]......................................      14

4. PRICE ..................................................................       7
   4.1 Detailed Pricing ...................................................       7
   4.2 Payment Schedule ...................................................       8

5. APPENDIX ...............................................................       9
   5.1 Appendix A - Price Proposal (see attached document) ................       9
   5.2 Appendix B - Project Schedule (see attached document) ..............       9

6. FORMS ..................................................................      10
   6.1 Section K - Representations, Certifications and Other Statements of
       Bidder .............................................................      10
</TABLE>

                                       i
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal
<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

1.   EXECUTIVE SUMMARY

ORBCOMM Inc. is pleased to respond to your Request for Proposal (RFP) to provide
Technical Capability and Management Support Services for the US Coast Guard
Automatic Identification System (AIS)(as defined by 33 Code of Fedral
Regulations Part 164 and the international standards incorporated therein).
ORBCOMM possesses the right technology, capabilities and is uniquely positioned
to support this effort. We stand confident that by using ORBCOMM the U.S. Coast
Guard will be able to collect and process AIS data via our satellite system to
provide additional maritime domain awareness of all maritime activities out to
2,000nm off the coast of the United States and beyond. This is clearly a major
initiative, and the solution proposed by ORBCOMM will allow both an expanded
scope and greatly benefit your desired results by providing exciting new
telecommunication capabilities at the lowest possible cost.

WHY ORBCOMM?

ORBCOMM has become an emerging force in the satellite telecommunications
industry and is well positioned to support this effort. We are excited about the
opportunity to work with the U.S. Coast Guard and are committed to providing a
robust and cost effective solution for AIS.

Through our unique global network of satellites and terrestrial gateways,
information can be shared with tremendous reach. ORBCOMM provides narrowband
two-way digital messaging, data communications and geo-positioning services on a
global basis. Services are provided through our constellation of 30 owned and
operated low earth orbit (LEO) satellites and gateways located around the world.
Through this network, ORBCOMM is able deliver information to and from nearly
anyplace in the world on a near real time basis.

[Graphics]

                                       1
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal
<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

Over the past several years, companies such as Caterpillar, Volvo Trucks,
Komatsu, GE Transportation, GE TIP, GE Medical, General Motors, Garmin, CSX,
XATA, and providers to several government programs have selected ORBCOMM and
integrated our services into their products and communication solutions. The
ubiquitous coverage provided by the ORBCOMM system was a major factor in its
selection since it provided a distinct advantage over geo-stationary satellite
technology and terrestrial systems, which are hampered by "blind spots", "dead
zones", and "limited coverage". ORBCOMM is a very affordable solution that
provided greater flexibility for many differing needs.

Manufacturers, customers, and resellers have selected the ORBCOMM System because
it provides:

-    Unified global solution

-    Lower technology risks

-    Consolidated quantities of systems globally, greatly reduce price points

-    High performance, easily installed and concealed antenna options

-    Mature, ruggedized and vehicle grade OEM modem options

-    Elimination of expensive roaming charges

-    Ubiquitous coverage for communications

The ORBCOMM system provides low cost solutions with global coverage and is
uniquely positioned to provide the extended AIS services being sought by the
U.S. Coast Guard.

                                       2
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal
<PAGE>
                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

2.   OVERVIEW

2.1  Company Background

ORBCOMM Inc. is a satellite data communications company that offers customers
the ability to access innovative satellite communication services at down to
earth prices. Our satellite-based network provides customers around the world
with reliable global coverage and the added value of tailored application
service and support.

Customers searching for reliable, cost-effective communications solutions that
go beyond traditional networks have rapidly made ORBCOMM a leader in our
industry. Our reputation for providing cutting-edge technology with personal
service has made ORBCOMM the solution for customers looking to find new,
productive ways to improve their businesses.

Our customers include large and small businesses involved in a wide variety of
industries including trucking, marine, aviation, automotive, heavy equipment and
utilities.

The ORBCOMM system is a satellite-based, wireless telecommunications network
designed to send and receive data from anywhere in the world. Through a
constellation of 30 low-earth orbit (LEO) satellites and terrestrial gateways
located around the world, the ORBCOMM network provides global data
communications, narrowband two-way digital messaging and geo-positioning
services. Information is delivered on a near real-time basis to meet a wide
variety of business needs.

The ORBCOMM network is ideally suited for commercial and industrial applications
including:

-    Tracking and managing mobile construction equipment, trucks, trailers,
     locomotives, rail cars, shipping containers and marine vessels.

-    Monitoring and controlling assets at remote locations such as oil and gas
     extraction, storage, transfers, pipeline operations as well as electric
     power generation and distribution.

-    Locating and recovering stolen vehicles and cargo.

-    Sharing vital information and providing reliable two-way messaging.

ORBCOMM serves its customers through Value Added Resellers (VARs) that provide
expertise in specific industries. Our VARs and customers include; Volvo Trucks
North America, Volvo Trucks South America, Mack, Renault, XATA Corporation, GE
Transportation, GE TIP, GE Medical, General Motors, Caterpillar, Komatsu,
Hitachi, Garmin, Avidyne, EchoFlight, CSX, MobilAria, AirlQ, British Petroleum,
Stanley Associates, Northrop Grumman, NOAA, US Army Space Command, Royal Thai
Navy, and numerous other major corporations and organizations.

[Graphics]

                                       3
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

The ORBCOMM system is operated and distributed on a worldwide basis through
various ORBCOMM affiliates, business partners, licensees, country
representative, and Valued Added Resellers. Operations include: 12 Gateway Earth
Stations located in New York, Georgia, Washington, Arizona, Curacao, Morocco,
Italy, Japan, Korea, Malaysia, Argentina, and Brazil; 5 international Gateway
Control Centers in Italy, Japan, Korea, Malaysia, and Brazil; and the US Gateway
Control Center and Network Control Center located in Virginia. The Network
Control Center monitors the status of all-terrestrial network elements and
entire satellite constellation.

ORBCOMM Inc. is a privately held Delaware corporation headquartered in Dulles,
Virginia.

2.2  Satellites and Space Elements

Today ORBCOMM has 30 operational satellites in six orbital planes between
approximately 740 and 825 kilometers above the Earth. ORBCOMM has authority to
launch and operate up to 48 satellites to accommodate future growth. Planes A,
B, C, and D are inclined 45 degrees to the Equator and contain six to eight
satellites each. Planes F and G are inclined at 70 and 108 degrees,
respectively, and contain one satellite each.

The satellites are equipped with a VHF and UHF communication payload capable of
operation in the 137.0-150.05 MHz and the 400.075-400.125 MHz bands. An on-board
computer manages spectrum usage via the ORBCOMM-pioneered Dynamic Channel
Activity Assignment System (DCAAS). DCAAS continuously scans the authorized
spectrum, identifies frequencies in use by other users of the frequency band and
assigns channels to practically eliminate the possibility of interference.

[Graphics]

[Graphics]

                                       4
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

2.3  Ground Infrastructure

The ORBCOMM ground infrastructure includes elements strategically located
throughout the world. These ground network elements provide access to the space
segment and an interface with public and private data networks including the
Internet. They include:

     -    Gateway Earth Station, or GES. A GES has two radomes with enclosed VHF
          tracking antennas (one is basically redundant), pedestals,
          controllers, and radio equipment.

     -    Gateway Control Centers, or GCC. A GCC processes the message traffic
          and provides the interconnection with other terrestrial networks.

Each GES contains a freestanding shelter, fuel tank and power generator. The
GES-to-satellite links make use of single satellite uplink and downlink channels
using a Time Division Multiple Access (TDMA) protocol. This protocol permits
several gateways to communicate simultaneously with a single satellite and vice
versa. Advantages of TDMA include the ability to provide a virtually seamless
transfer of satellite connections among GESs, under the centralized control of
the GCC.

Each GES covers an area with a radius of approximately 3,300 miles. There are
four GESs in the United States, located in New York, Arizona, Georgia, and
Washington State. There are GESs in Curacao, Brazil, Italy, Japan, South Korea,
Malaysia, Morocco and Argentina.

                                       5
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

[Graphics]

The key control element of the entire global network is located in the Network
Control Center (NCC) in Dulles, Virginia. The NCC monitors the status of
all-terrestrial network elements and space vehicles.

[Graphics]

A message can be delivered to the customer in a variety of ways. These include
the Internet, public/private X.25 data networks, dedicated frame relay, or
modems connected to a telephone network. An acknowledgment can also be returned
to the sender. To mitigate design and implementation risks and to control costs,
the system architecture makes use of existing, mature technologies and conforms
to internationally accepted standards (e.g. Internet electronic mail).

                                       6
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

Graphics

3.   STATEMENT OF WORK [SECTION C]

3.1     GENERAL [SECTION C: 1.0]

      3.1.1   SCOPE [SECTION C: 1.1]

[***]

      3.1.2   BACKGROUND [SECTION C: 1.2]

[***]

3.2     CONTRACTOR PERSONNEL [SECTION C: 1.3]

      3.2.1   PROJECT MANAGER [SECTION C: 1.3.1, 1.3.1.1, 1.3.1.2]

[***]

      3.2.2   QUALIFIED PERSONNEL [SECTION C: 1.3.2]

[***]

      3.2.3   EMPLOYEE IDENTIFICATION [SECTION C: 1.3.3, 1.3.3.1]

[***]

      3.2.4   EMPLOYEE CONDUCT [SECTION C: 1.3.4]

[***]

      3.2.5   REMOVING EMPLOYEES [SECTION C: 1.3.5]

[***]

      3.2.6   CONFLICT OF INTEREST [SECTION C: 1.3.6]

[***]

     3.2.7   KEY PERSONNEL [SECTION C: 1.4]

[***]

     3.2.8   SECURITY [SECTION C: 1.5]

[***]

     3.2.9   PERIOD OF PERFORMANCE [SECTION C: 1.6]

[***]

     3.2.10  PLACE OF PERFORMANCE [SECTION C: 1.7]

[***]

     3.2.11  HOURS OF OPERATIONS [SECTION C: 1.8]

[***]

     3.2.12  TRAVEL [SECTION C:1.9]

[***]

     3.2.13  KICK-OFF MEETING [SECTION C: 1.10]

[***]

     3.2.14  PROJECT PLAN [SECTION C: 1.11]

[***]

     3.2.15  PROGRESS REPORTS [SECTION C: 1.12]

[***]

     3.2.16  PROGRESS MEETINGS [SECTION C: 1.13]

[***]

     3.2.17  GENERAL REPORT REQUIREMENTS [SECTION C: 1.14]

[***]

     3.2.18  INTELLECTUAL PROPERTY [SECTION C: 1.15]

[***]

     3.2.19  TELECOMMUNICATIONS LAWS

[***]

3.3     GOVERNMENT TERMS & DEFINITIONS [SECTION C: 2.0]

[***]

3.4     GOVERNMENT FURNISHED PROPERTY [SECTION C: 3.0]

[***]

3.5     CONTRACTOR FURNISHED PROPERTY [SECTION C: 4.0]

[***]

3.6     REQUIREMENTS [SECTION C: 5.0]

     3.6.1   PROGRAM DEFINITION [SECTION C: 5.1]

[***]

3.6.1.1  CONCEPT OF OPERATIONS

[***]

3.6.1.2  SPACE SEGMENT REQUIREMENTS

[***]

3.6.1.3  GROUND SEGMENT REQUIREMENTS

[***]

3.6.1.4  REQUIREMENTS REVIEW [SECTION C: 5.1.2]

[***]

3.6.1.5  IMPLEMENTATION PLAN [SECTION C: 5.1.3]

[***]

3.6.1.6  SUBCONTRACT MANAGEMENT PLAN [SECTION C: 5.1.3]

[***]

3.6.1.7  INTEGRATION PLAN [SECTION C: 5.1.3]

[***]

     3.6.2   FEASIBILITY STUDY [SECTION C: 5.2]

[***]

3.6.2.1  VERIFY ANTENNA PERFORMANCE [SECTION C: 5.2.1]

[***]

3.6.2.2  DRAFT AIS PAYLOAD PERFORMANCE REQUIREMENTS [SECTION C: 5.2.2]

[***]

3.6.2.3  SURVEY EXISTING AIS RECEIVER MANUFACTURERS [SECTION C: 5.2.3]

[***]

3.6.2.4  DEVELOP BUDGETARY MASS, POWER AND VOLUME ESTIMATES [SECTION C: 5.2.4]

[***]

3.6.2.5  DEVELOP DETAILED DOWNLINK CAPACITY MODEL [SECTION C: 5.2.5]

[***]

3.6.2.6  MODELING AND ANALYSIS OF INTERFERENCE [SECTION C: 5.2.6]

[***]

3.6.2.7 SUPPORT DEVELOPMENT OF FILTER SPECIFICATIONS AND PROCUREMENT
        [SECTION C: 5.2.7]

[***]

3.6.2.8 SUPPORT RECEIVER/PROCESSOR SPECIFICATIONS AND PROCUREMENT
        [SECTION C: 5.2.8]

[***]

3.6.2.9 DETAILED OPERATIONS CONCEPTS AND PROCEDURES [SECTION C: 5.2.9]

[***]

3.6.2.10 PREPARE FEASIBILITY STUDY

[***]

     3.6.3   IMPACT ANALYSIS [SECTION C: 5.3, 5.3.1-7]

[***]

3.6.3.1 IMPLEMENTATION ON REPLENISHMENT SPACECRAFT

[***]

3.6.3.2 DEVELOP MODIFICATIONS TO REPLENISHMENT PROCUREMENT DOCS

[***]

3.6.3.3 BIDDERS EVALUATE IMPACT

[***]

3.6.3.4 FINALIZE DETAILED SPECIFICATIONS

[***]

3.6.3.5 SUPPORT THE DEVELOPMENT OF COMPONENT SPECIFICATIONS AND PROCUREMENT
         DOCUMENTS

[***]

3.6.3.6 IDENTIFY AND QUALIFY POTENTIAL COMPONENT CONTRACTORS

[***]

3.6.3.7 VERIFY MASS, POWER, VOLUME ESTIMATES

[***]

     3.6.4   AIS SECONDARY SPACECRAFT PAYLOAD [SECTION C: 5.4, 5.4.1-4, 5.4.4.1
5]

3.6.4.1 DESCRIPTION OF RECEIVER/PROCESSOR [SECTION C: 5.5]

[***]

3.6.4.2 CHANGES FROM A STANDARD COMMUNICATIONS SATELLITE PAYLOAD
        [SECTION C: 5.6, 5.6.1-2]

[***]

3.6.4.3 SATELLITE MODIFICATIONS FOR AIS [SECTION C: 5.7, 5.7.1]

[***]

     3.6.5   ORBCOMM PARTICIPATION IN CONCEPT VALIDATION SATELLITE

[***]

3.6.5.1 PROCUREMENT DOCUMENTS FOR CONCEPT DEMONSTRATION SATELLITE

[***]

3.6.5.2 EVALUATE BIDS

[***]

3.6.5.3 SELECT CONTRACTOR (TEAM)

[***]

3.6.5.4 NEGOTIATE CONTRACT

[***]

3.6.5.5 FINALIZE SPECIFICATION TO INCLUDE AIS

[***]

3.6.5.6 EVALUATE REQUIREMENTS

[***]

3.6.5.7 EVALUATE PRELIMINARY DESIGN

[***]

3.6.5.8 EVALUATE DESIGN RESULTS

[***]

3.6.5.9 EVALUATE, APPROVE INTEGRATION PLAN

[***]

3.6.5.10 SUPPORT PAYLOAD VERIFICATION TESTING

[***]

3.6.5.11 SUPPORT BUS VERIFICATION TESTING

[***]

[***]

3.6.5.12 SUPPORT SPACECRAFT ENVIRONMENTAL TESTING

[***]

3.6.5.13 SUPPORT LAUNCH SITE ACTIVITIES

[***]

3.6.6   ORBCOMM DEVELOPMENT ACTIVITIES

3.6.6.1 PAYLOAD SOFTWARE

[***]

3.6.6.2 SATELLITE CONTROL CENTER UPGRADES

[***]

3.6.6.3 NETWORK SEGMENT SOFTWARE

[***]

     3.6.7   IMPLEMENTATION OF CONCEPT DEMONSTRATION SATELLITE

[***]

     3.6.8   SATELLITE GATEWAY MODIFICATIONS FOR AIS [SECTION C: 5.8, 5.8.1]

[***]

     3.6.9   ONGOING SUPPORT, OPERATIONS AND MAINTENANCE [SECTION C:5.9, 5.9.1]

[***]

     3.6.10  RECURRING SERVICE [SECTION C: 5.10, 5.10.1]

[***]

3.6.10.1 OPTION 1 - LOW USAGE [SECTION C: 5.10.2]

[***]

3.6.10.2 OPTION 2 - MEDIUM USAGE [SECTION C: 5.10.3]

[***]

3.6.10.3 OPTION 3 - HIGH USAGE [SECTION C: 5.10.4]

3.7     REFERENCES [SECTION C: 6.0]

[***]

3.8     DELIVERABLES [SECTION C: 7.0]

[***]

4.   PRICE

4.1  DETAILED PRICING

ORBCOMM's pricing submission is included in Appendix A. Standard Form 33 with
the price per CLIN is also included in Appendix A.

As a means of cost comparison for the spacecraft that is the subject of this
contract, ORBCOMM offers information concerning previous purchases of spacecraft
for its constellation. The initial procurement was for two satellites, but the
bulk of the cost in that initial contract was for non-

                                       7
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

recurring engineering, so it does not provide an adequate point of reference.
The next procurement was made under a contract dated September 12, 1995 for 34
satellites and three launch vehicles. The cost per satellite, exclusive of
launch, was approximately $3.3 million(1). The amortized launch cost for each
spacecraft was approximately $1.4 million. Making the total cost per in-orbit
satellite to be $4.7 million. The next contract was dated February 1, 1999 for
the purchase of eight satellites and launch services. The cost per satellite,
exclusive of launch, was $4.4 million(2). The amortized launch cost for each
spacecraft was approximately $2.3 million. Making the total cost per in-orbit
satellite to be $6.7 million.

4.2  PAYMENT SCHEDULE

ORBCOMM proposes the following payment schedule for the contract. Payments shall
be made based on a percentage of the total contract value for the milestones
listed.

                                PAYMENT SCHEDULE

<TABLE>
<CAPTION>
PROGRAM MILESTONES                                      DATE     % CONTRACT VALUE
------------------                                      ----     ----------------
<S>                                                  <C>         <C>
Contract Award                                        1-May-04        15.00%
Payload Requirements Review                          15-Jul-04        10.00%
Deliver Feasibility Study                            12-Aug-04        10.00%
Deliver Cost to Add to Replenishment Replenishment   23-Sep-04        10.00%
Network SW CDR                                       25-Nov-04        10.00%
Payload SW CDR                                        3-Feb-05        10.00%
SCC Upgrade CDR                                      28-Apr-05        10.00%
Bus CDR                                              16-Jun-05         5.00%
System CDR                                            7-Jul-05         5.00%
Final Checkout SCC Upgrade                            8-Sep-05         5.00%
Launch                                               27-Oct-05         4.00%
Operations Q1                                         1-Feb-06         4.00%
Operations Q2                                         2-May-06         1.00%
Operations Q3                                        31-Jul-06         1.00%
</TABLE>

Note: See program schedule for milestone definition

(1)  Article 3 Consideration on page 5 of the contract.

(2)  Article 4 Consideration on page 5 of the contract.

                                       8
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

5.   APPENDIX

5.1  APPENDIX A - PRICE PROPOSAL (SEE ATTACHED DOCUMENT)

5.2  APPENDIX B - PROJECT SCHEDULE (SEE ATTACHED DOCUMENT)

                                       9
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

6.   FORMS

6.1  SECTION K - REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS OF BIDDER

Section K - Representations, Certifications, and Other Statements of Bidders

52.203-2 CERTIFICATE OF INDEPENDENT PRICE DETERMINATION. (APR 1985)

(a) The offeror certifies that -

(1) The prices in this offer have been arrived at independently, without, for
the purpose of restricting competition, any consultation, communication, or
agreement with any other offeror or competitor relating to -

(i) Those prices;

(ii) The intention to submit an offer; or

(iii) The methods or factors used to calculate the prices offered.

(2) The prices in this offer have not been and will not be knowingly disclosed
by the offeror, directly or indirectly, to any other offeror or competitor
before bid opening (in the case of a sealed bid solicitation) or contract award
(in the case of a negotiated solicitation) unless otherwise required by law; and

(3) No attempt has been made or will be made by the offeror to induce any other
concern to submit or not to submit an offer for the purpose of restricting
competition.

(b) Each signature on the offer is considered to be a certification by the
signatory that the signatory -

(1) Is the person in the offeror's organization responsible for determining the
prices being offered in this bid or proposal, and that the signatory has not
participated and will not participate in any action contrary to subparagraphs
(a)(1) through (a)(3) of this provision; or

(2)(i) Has been authorized, in writing, to act as agent for the following
principals in certifying that those principals have not participated, and will
not participate in any action contrary to subparagraphs (a)(1) through (a)(3) of
this provision; Jerome Eisenberg, Co-CEO;

(ii) As an authorized agent, does certify that the principals named in
subdivision (b)(2)(i) of this provision have not participated, and will not
participate, in any action contrary to subparagraphs (a)(1) through (a)(3) of
this provision; and

                                       10
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

(iii) As an agent, has not personally participated, and will not participate, in
any action contrary to subparagraphs (a)(1) through (a)(3) of this provision.

(c) If the offeror deletes or modifies subparagraph (a)(2) of this provision,
the offeror must furnish with its offer a signed statement setting forth in
detail the circumstances of the disclosure.

(End of provision)

52.203-11 CERTIFICATION AND DISCLOSURE REGARDING PAYMENTS TO INFLUENCE CERTAIN
FEDERAL TRANSACTIONS. (APR 1991)

52.204-3 TAXPAYER IDENTIFICATION. (OCT 1998)

(a) Definitions.

Common parent, as used in this provision, means that corporate entity that owns
or controls an affiliated group of corporations that files its Federal income
tax returns on a consolidated basis, and of which the offeror is a member.

Taxpayer Identification Number (TIN), as used in this provision, means the
number required by the Internal Revenue Service (IRS) to be used by the offeror
in reporting income tax and other returns. The TIN may be either a Social
Security Number or an Employer Identification Number.

(b) All offerors must submit the information required in paragraphs (d) through
(f) of this provision to comply with debt collection requirements of 31 U.S.C.
7701 (c) and 3325(d), reporting requirements of 26 U.S.C. 6041, 6041 A, and
6050M, and implementing regulations issued by the IRS. If the resulting contract
is subject to the payment reporting requirements described in Federal
Acquisition Regulation (FAR) 4.904, the failure or refusal by the offeror to
furnish the information may result in a 31 percent reduction of payments
otherwise due under the contract.

(c) The TIN may be used by the Government to collect and report on any
delinquent amounts arising out of the offeror's relationship with the Government
(31 U.S.C. 7701(c)(3)). If the resulting contract is subject to the payment
reporting requirements described in FAR 4.904, the TIN provided hereunder may be
matched with IRS records to verify the accuracy of the offeror's TIN.

(d) Taxpayer Identification Number (TIN).

[X] TIN: 41-2118289.

[ ] TIN has been applied for.

[ ] TIN is not required because:

                                       11
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

[ ] Offeror is a nonresident alien, foreign corporation, or foreign partnership
that does not have income effectively connected with the conduct of a trade or
business in the United States and does not have an office or place of business
or a fiscal paying agent in the United States;

[ ] Offeror is an agency or instrumentality of a foreign government;

[ ] Offeror is an agency or instrumentality of the Federal Government.

(e) Type of organization.

[ ] Sole proprietorship;

[ ] Partnership;

[X] Corporate entity (not tax-exempt);

[ ] Corporate entity (tax-exempt);

[ ] Government entity (Federal, State, or local);

[ ] Foreign government;

[ ] International organization per 26 CFR 1:6049-4;

[ ] Other __________________________.

(f) Common parent.

[ ] Offeror is not owned or controlled by a common parent as defined in
paragraph (a) of this provision.

[ ] Name and TIN of common parent:

Name __________________________

TIN ____________________________

(End of provision)

                                       12
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

52.204-5 WOMEN-OWNED BUSINESS (OTHER THAN SMALL BUSINESS). (MAY 1999)

(a) Definition. Women-owned business concern, as used in this provision, means a
concern that is at least 51 percent owned by one or more women; or in the case
of any publicly owned business, at least 51 percent of its stock is owned by one
or more women; and whose management and daily business operations are controlled
by one or more women.

(b) Representation. [Complete only if the offeror is a women-owned business
concern and has not represented itself as a small business concern in paragraph
(b)(1) of FAR 52.219-1, Small Business Program Representations, of this
solicitation.] The offeror represents that it _________ is a women-owned
business concern.

(End of provision)

52.209-5 CERTIFICATION REGARDING DEBARMENT, SUSPENSION, PROPOSED DEBARMENT, AND
OTHER RESPONSIBILITY MATTERS. (DEC 2001)

(a)(1) The Offeror certifies, to the best of its knowledge and belief, that -

(i) The Offeror and/or any of its Principals -

(A) Are [ ] are not [X] presently debarred, suspended, proposed for debarment,
or declared ineligible for the award of contracts by any Federal agency;

(B) Have [ ] have not [X], within a three-year period preceding this offer, been
convicted of or had a civil judgment rendered against them for: commission of
fraud or a criminal offense in connection with obtaining, attempting to obtain,
or performing a public (Federal, state, or local) contract or subcontract;
violation of Federal or state antitrust statutes relating to the submission of
offers; or commission of embezzlement, theft, forgery, bribery, falsification or
destruction of records, making false statements, tax evasion, or receiving
stolen property; and

(C) Are [ ] are not [X] presently indicted for, or otherwise criminally or
civilly charged by a governmental entity with, commission of any of the offenses
enumerated in paragraph (a)(1)(i)(B) of this provision.

(ii) The Offeror has [ ] has not [X], within a three-year period preceding this
offer, had one or more contracts terminated for default by any Federal agency.

(2) Principals, for the purposes of this certification, means officers;
directors; owners; partners; and, persons having primary management or
supervisory responsibilities within a business entity (e.g., general manager;
plant manager; head of a subsidiary, division, or business segment, and similar
positions).

This Certification Concerns a Matter Within the Jurisdiction of an Agency of the
United States and the Making of a False, Fictitious, or Fraudulent Certification
May Render the Maker Subject to Prosecution Under Section 1001, Title 18, United
States Code.

                                       13
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

(b) The Offeror shall provide immediate written notice to the Contracting
Officer if, at any time prior to contract award, the Offeror learns that its
certification was erroneous when submitted or has become erroneous by reason of
changed circumstances.

(c) A certification that any of the items in paragraph (a) of this provision
exists will not necessarily result in withholding of an award under this
solicitation. However, the certification will be considered in connection with a
determination of the Offeror's responsibility. Failure of the Offeror to furnish
a certification or provide such additional information as requested by the
Contracting Officer may render the Offeror nonresponsible.

(d) Nothing contained in the foregoing shall be construed to require
establishment of a system of records in order to render, in good faith, the
certification required by paragraph (a) of this provision. The knowledge and
information of an Offeror is not required to exceed that which is normally
possessed by a prudent person in the ordinary course of business dealings.

(e) The certification in paragraph (a) of this provision is a material
representation of fact upon which reliance was placed when making award. If it
is later determined that the Offeror knowingly rendered an erroneous
certification, in addition to other remedies available to the Government, the
Contracting Officer may terminate the contract resulting from this solicitation
for default.

(End of provision)

52.215-6 PLACE OF PERFORMANCE. (OCT 1997)

(a) The offeror or respondent, in the performance of any contract resulting from
this solicitation, [ ] intends, [X] does not intend [check applicable block] to
use one or more plants or facilities located at a different address from the
address of the offeror or respondent as indicated in this proposal or response
to request for information.

(b) If the offeror or respondent checks intends in paragraph (a) of this
provision, it shall insert in the following spaces the required information:

Place of PerformanceName and Address of Owner

(Street Address, City, and Operator of the Plant

State, County, Zip Code) or Facility if Other than Offeror or Respondent

21700 Atlantic Blvd ________________________
Dulles, Virginia 20166 ________________________
(End of provision)

52.219-1 SMALL BUSINESS PROGRAM REPRESENTATIONS. (APR 2002) - ALTERNATE I (APR
2002)

                                       14
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

(a)(1) The North American Industry Classification System (NAICS) code for this
acquisition is 517410.

(2) The small business size standard is $12.5 million.

(3) The small business size standard for a concern which submits an offer in its
own name, other than on a construction or service contract, but which proposes
to furnish a product which it did not itself manufacture, is 500 employees.

(b) Representations. (1) The offeror represents as part of its offer that it [X]
is, [ ] is not a small business concern.

(2) [Complete only if the offeror represented itself as a small business concern
in paragraph (b)(1) of this provision.] The offeror represents, for general
statistical purposes, that it [ ] is, [X] is not, a small disadvantaged business
concern as defined in 13 CFR 124.1002.

(3) [Complete only if the offeror represented itself as a small business concern
in paragraph (b)(1) of this provision.] The offeror represents as part of its
offer that it [ ] is, [X] is not a women-owned small business concern.

(4) [Complete only if the offeror represented itself as a small business concern
in paragraph (b)(1) of this provision.] The offeror represents as part of its
offer that it [ ] is, [X] is not a veteran-owned small business concern.

(5) [Complete only if the offeror represented itself as a veteran-owned small
business concern in paragraph (b)(4) of this provision.] The offeror represents
as part of its offer that it [ ] is, [X] is not a service-disabled veteran-owned
small business concern.

(6) [Complete only if the offeror represented itself as a small business concern
in paragraph (b)(1) of this provision.] The offeror represents, as part of its
offer, that-

(i) It [ ] is, [X] is not a HUBZone small business concern listed, on the date
of this representation, on the List of Qualified HUBZone Small Business Concerns
maintained by the Small Business Administration, and no material change in
ownership and control, principal office, or HUBZone employee percentage has
occurred since it was certified by the Small Business Administration in
accordance with 13 CFR part 126; and

(ii) It [ ] is, [X] is not a joint venture that complies with the requirements
of 13 CFR part 126, and the representation in paragraph (b)(6)(i) of this
provision is accurate for the HUBZone small business concern or concerns that
are participating in the joint venture. [The offeror shall enter the name or
names of the HUBZone small business concern or concerns that are participating
in the joint venture:_________________________.] Each HUBZone small business
concern participating in the joint venture shall submit a separate signed copy
of the HUBZone representation.

(7) [Complete if offeror represented itself as disadvantaged in paragraph (b)(2)
of this provision.] The offeror shall check the category in which its ownership
falls:

                                       15
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

________ Black American.

________ Hispanic American.

________ Native American (American Indians, Eskimos, Aleuts, or Native
Hawaiians).

________ Asian-Pacific American (persons with origins from Burma, Thailand,
Malaysia, Indonesia, Singapore, Brunei, Japan, China, Taiwan, Laos, Cambodia
(Kampuchea), Vietnam, Korea, The Philippines, U.S. Trust Territory of the
Pacific Islands (Republic of Palau), Republic of the Marshall Islands, Federated
States of Micronesia, the Commonwealth of the Northern Mariana Islands, Guam,
Samoa, Macao, Hong Kong, Fiji, Tonga, Kiribati, Tuvalu, or Nauru).

________ Subcontinent Asian (Asian-Indian) American (persons with origins from
India, Pakistan, Bangladesh, Sri Lanka, Bhutan, the Maldives Islands, or Nepal).

________ Individual/concern, other than one of the preceding.

(c) Definitions. As used in this provision -

Service-disabled veteran-owned small business concern -

(1) Means a small business concern -

(i) Not less than 51 percent of which is owned by one or more service-disabled
veterans or, in the case of any publicly owned business, not less than 51
percent of the stock of which is owned by one or more service-disabled veterans;
and

(ii) The management and daily business operations of which are controlled by one
or more service-disabled veterans or, in the case of a veteran with permanent
and severe disability, the spouse or permanent caregiver of such veteran.

(2) Service-disabled veteran means a veteran, as defined in 38 U.S.C. 101(2),
with a disability that is service-connected, as defined in 38 U.S.C. 101(16).

Small business concern means a concern, including its affiliates, that is
independently owned and operated, not dominant in the field of operation in
which it is bidding on Government contracts, and qualified as a small business
under the criteria in 13 CFR part 121 and the size standard in paragraph (a) of
this provision.

Veteran-owned small business concern means a small business concern -

(1) Not less than 51 percent of which is owned by one or more veterans (as
defined at 38 U.S.C. 101(2)) or, in the case of any publicly owned business, not
less than 51 percent of the stock of which is owned by one or more veterans; and

                                       16
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

(2) The management and daily business operations of which are controlled by one
or more veterans.

Women-owned small business concern means a small business concern -

(1) That is at least 51 percent owned by one or more women; or in the case of
any publicly owned business, at least 51 percent of the stock of which is owned
by one or more women; and

(2) Whose management and daily business operations are controlled by one or more
women.

(d) Notice. (1) If this solicitation is for supplies and has been set aside, in
whole or in part, for small business concerns, then the clause in this
solicitation providing notice of the set-aside contains restrictions on the
source of the end items to be furnished.

(2) Under 15 U.S.C. 645(d), any person who misrepresents a firm's status as a
small, HUBZone small, small disadvantaged, or women-owned small business concern
in order to obtain a contract to be awarded under the preference programs
established pursuant to section 8(a), 8(d), 9, or 15 of the Small Business Act
or any other provision of Federal law that specifically references section 8(d)
for a definition of program eligibility, shall -

(i) Be punished by imposition of fine, imprisonment, or both;

(ii) Be subject to administrative remedies, including suspension and debarment;
and

(iii) Be ineligible for participation in programs conducted under the authority
of the Act.

(End of provision)

52.222-22 PREVIOUS CONTRACTS AND COMPLIANCE REPORTS. (FEB 1999)

The offeror represents that -

(a) It [ ] has, [X] has not participated in a previous contract or subcontract
subject the Equal Opportunity clause of this solicitation;

(b) It [ ] has, [X] has not filed all required compliance reports; and

(c) Representations indicating submission of required compliance reports, signed
by proposed subcontractors, will be obtained before subcontract awards.

(End of provision)

52.222-25 AFFIRMATIVE ACTION COMPLIANCE. (APR 1984)

                                       17
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

The offeror represents that -

(a) It [ ] has developed and has on file, [X] has not developed and does not
have on file, at each establishment, affirmative action programs required by the
rules and regulations of the Secretary of Labor (41 CFR 60-1 and 60-2); or

(b) It [X] has not previously had contracts subject to the written affirmative
action programs requirement of the rules and regulations of the Secretary of
Labor.

(End of provision)

52.222-38 COMPLIANCE WITH VETERANS' EMPLOYMENT REPORTING REQUIREMENTS. (DEC
2001)

By submission of its offer, the offeror represents that, if it is subject to the
reporting requirements of 38 U.S.C. 4212(d) (i.e., if it has any contract
containing Federal Acquisition Regulation clause 52.222-37, Employment Reports
on Special Disabled Veterans, Veterans of the Vietnam Era, and Other Eligible
Veterans), it has submitted the most recent VETS-100 Report required by that
clause.

(End of provision)

52.223-13 Certification of Toxic Chemical Release Reporting. (AUG 2003)

(a) Executive Order 13148, of April 21, 2000, Greening the Government through
Leadership in Environmental Management, requires submission of this
certification as a prerequisite for contract award.

(b) By signing this offer, the offeror certifies that -

(1) As the owner or operator of facilities that will be used in the performance
of this contract that are subject to the filing and reporting requirements
described in section 313 of the Emergency Planning and Community Right-to-Know
Act of 1986 (EPCRA) (42 U.S.C. 11023) and section 6607 of the Pollution
Prevention Act of 1990 (PPA) (42 U.S.C. 13106), the offeror will file and
continue to file for such facilities for the life of the contract the Toxic
Chemical Release Inventory Form (Form R) as described in sections 313(a) and (g)
of EPCRA and section 6607 of PPA; or

(2) None of its owned or operated facilities to be used in the performance of
this contract is subject to the Form R filing and reporting requirements because
each such facility is exempt for at least one of the following reasons: [Check
each block that is applicable.]

[X] (i) The facility does not manufacture, process, or otherwise use any toxic
chemicals listed in 40 CFR 372.65;

                                       18
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

[ ] (ii) The facility does not have 10 or more full-time employees as specified
in section 313(b)(1)(A) of EPCRA, 42 U.S.C. 11023(b)(1)(A);

[ ] (iii) The facility does not meet the reporting thresholds of toxic chemicals
established under section 313(f) of EPCRA, 42 U.S.C. 11023(f) (including the
alternate thresholds at 40 CFR 372.27, provided an appropriate certification
form has been filed with EPA);

[ ] (iv) The facility does not fall within the following Standard Industrial
Classification (SIC) codes or their corresponding North American Industry
Classification System sectors:

(A) Major group code 10 (except 1011, 1081, and 1094.

(B) Major group code 12 (except 1241).

(C) Major group codes 20 through 39.

(D) Industry code 4911, 4931, or 4939 (limited to facilities that combust coal
and/or oil for the purpose of generating power for distribution in commerce).

(E) Industry code 4953 (limited to facilities regulated under the Resource
Conservation and Recovery Act, Subtitle C (42 U.S.C. 6921, et seq.)), 5169,
5171, or 7389 (limited to facilities primarily engaged in solvent recovery
services on a contract or fee basis); or

[ ] (v) The facility is not located in the United States or its outlying areas.

(End of provision)

52.227-6 ROYALTY INFORMATION. (APR 1984)

(a) Cost or charges for royalties. When the response to this solicitation
contains costs or charges for royalties totaling more than $250, the following
information shall be included in the response relating to each separate item of
royalty or license fee:

(1) Name and address of licensor.

(2) Date of license agreement.

(3) Patent numbers, patent application serial numbers, or other basis on which
the royalty is payable.

(4) Brief description, including any part or model numbers of each contract item
or component on which the royalty is payable.

(5) Percentage or dollar rate of royalty per unit.

                                       19
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

(6) Unit price of contract item.

(7) Number of units.

(8) Total dollar amount of royalties.

(b) Copies of current licenses. In addition, if specifically requested by the
Contracting Officer before execution of the contract, the offeror shall furnish
a copy of the current license agreement and an identification of applicable
claims of specific patents.

(End of provision)

52.227-23 RIGHTS TO PROPOSAL DATA (TECHNICAL). (JUN 1987)

Except for data contained on pages 1 through 33 and Apendices, it is agreed that
as a condition of award of this contract, and notwithstanding the conditions of
any notice appearing thereon, the Government shall have unlimited rights (as
defined in the Rights in Data - General clause contained in this contract) in
and to the technical data contained in the proposal dated April 21, 2004, upon
which this contract is based.

(End of clause)

52.230-1 COST ACCOUNTING STANDARDS NOTICES AND CERTIFICATION. (JUN 2000)

Note: This notice does not apply to small businesses or foreign governments.
This notice is in three parts, identified by Roman numerals I through III.

Offerors shall examine each part and provide the requested information in order
to determine Cost Accounting Standards (CAS) requirements applicable to any
resultant contract.

If the offeror is an educational institution, Part II does not apply unless the
contemplated contract will be subject to full or modified CAS coverage pursuant
to 48 CFR 9903.201-2(c)(5) or 9903.201-2(c)(6), respectively.

I. Disclosure Statement - Cost Accounting Practices and Certification

(a) Any contract in excess of $500,000 resulting from this solicitation will be
subject to the requirements of the Cost Accounting Standards Board (48 CFR
Chapter 99), except for those contracts which are exempt as specified in 48 CFR
9903.201-1.

(b) Any offeror submitting a proposal which, if accepted, will result in a
contract subject to the requirements of 48 CFR Chapter 99 must, as a condition
of contracting, submit a Disclosure Statement as required by 48 CFR 9903.202.
When required, the Disclosure Statement must be submitted as a part of the
offeror's proposal under this solicitation unless the offeror has already
submitted a Disclosure Statement disclosing the practices used in connection
with the pricing of

                                       20
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

this proposal. If an applicable Disclosure Statement has already been submitted,
the offeror may satisfy the requirement for submission by providing the
information requested in paragraph (c) of Part I of this provision.

Caution: In the absence of specific regulations or agreement, a practice
disclosed in a Disclosure Statement shall not, by virtue of such disclosure, be
deemed to be a proper, approved, or agreed-to practice for pricing proposals or
accumulating and reporting contract performance cost data.

(c) Check the appropriate box below:

[ ] (1) Certificate of Concurrent Submission of Disclosure Statement. The
offeror hereby certifies that, as a part of the offer, copies of the Disclosure
Statement have been submitted as follows:

(i) Original and one copy to the cognizant Administrative Contracting Officer
(ACO) or cognizant Federal agency official authorized to act in that capacity
(Federal official), as applicable; and

(ii) One copy to the cognizant Federal auditor.

(Disclosure must be on Form No. CASE DS-1 or CASE DS-2, as applicable. Forms may
be obtained from the cognizant ACO or Federal official and/or from the
loose-leaf version of the Federal Acquisition Regulation.)

Date of Disclosure Statement: [Name and Address of Cognizant ACO or Federal
Official Where Filed:]

The offeror further certifies that the practices used in estimating costs in
pricing this proposal are consistent with the cost accounting practices
disclosed in the Disclosure Statement.

[ ] (2) Certificate of Previously Submitted Disclosure Statement. The offeror
hereby certifies that the required Disclosure Statement was filed as follows:

Date of Disclosure Statement: [ ]

Name and Address of Cognizant ACO or Federal Official Where Filed: [ ]

The offeror further certifies that the practices used in estimating costs in
pricing this proposal are consistent with the cost accounting practices
disclosed in the applicable Disclosure Statement.

[ ] (3) Certificate of Monetary Exemption. The offeror hereby certifies that the
offeror, together with all divisions, subsidiaries, and affiliates under common
control, did not receive net awards of negotiated prime contracts and
subcontracts subject to CAS totaling $50 million or more in the cost accounting
period immediately preceding the period in which this proposal was submitted.
The offeror further certifies that if such status changes before an award
resulting from this proposal, the offeror will advise the Contracting Officer
immediately.

                                       21
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

[ ] (4) Certificate of Interim Exemption. The offeror hereby certifies that (i)
the offeror first exceeded the monetary exemption for disclosure, as defined in
(3) of this subsection, in the cost accounting period immediately preceding the
period in which this offer was submitted and (ii) in accordance with 48 CFR
9903.202-1, the offeror is not yet required to submit a Disclosure Statement.
The offeror further certifies that if an award resulting from this proposal has
not been made within 90 days after the end of that period, the offeror will
immediately submit a revised certificate to the Contracting Officer, in the form
specified under subparagraph (c)(1) or (c)(2) of Part I of this provision, as
appropriate, to verify submission of a completed Disclosure Statement.

Caution: Offerors currently required to disclose because they were awarded a
CAS-covered prime contract or subcontract of $50 million or more in the current
cost accounting period may not claim this exemption (4). Further, the exemption
applies only in connection with proposals submitted before expiration of the
90-day period following the cost accounting period in which the monetary
exemption was exceeded.

II. Cost Accounting Standards - Eligibility for Modified Contract Coverage

If the offeror is eligible to use the modified provisions of 48 CFR
9903.201-2(b) and elects to do so, the offeror shall indicate by checking the
box below. Checking the box below shall mean that the resultant contract is
subject to the Disclosure and Consistency of Cost Accounting Practices clause in
lieu of the Cost Accounting Standards clause.

[ ] The offeror hereby claims an exemption from the Cost Accounting Standards
clause under the provisions of 48 CFR 9903.201-2(b) and certifies that the
offeror is eligible for use of the Disclosure and Consistency of Cost Accounting
Practices clause because during the cost accounting period immediately preceding
the period in which this proposal was submitted, the offeror received less than
$50 million in awards of CAS-covered prime contracts and subcontracts. The
offeror further certifies that if such status changes before an award resulting
from this proposal, the offeror will advise the Contracting Officer immediately.

Caution: An offeror may not claim the above eligibility for modified contract
coverage if this proposal is expected to result in the award of a CAS-covered
contract of $50 million or more or if, during its current cost accounting
period, the offeror has been awarded a single CAS-covered prime contract or
subcontract of $50 million or more.

III. Additional Cost Accounting Standards Applicable to Existing Contracts

The offeror shall indicate below whether award of the contemplated contract
would, in accordance with subparagraph (a)(3) of the Cost Accounting Standards
clause, require a change in established cost accounting practices affecting
existing contracts and subcontracts.

[ ] yes [ ] no

(End of provision)

                                       22
Use Or Disclosure Of Data Contained On This Sheet is Subject To The Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

4.2 PAYMENT SCHEDULE

ORBCOMM shall invoice the U.S. Coast Guard on a monthly basis. The invoice
amount shall be based on actual progress as supported in the weekly progress
reports.

<TABLE>
<CAPTION>
PROJECT MILESTONES                                      DATE
------------------                                   ---------
<S>                                                  <C>
Contract Award                                       20-May-04
Payload Requirements Review                          15-Jul-04
Deliver Feasibility Study                            12-Aug-04
Deliver Cost to Add to Replenishment Replenishment   23-Sep-04
Network SW CDR                                       25-Nov-04
Payload SW CDR                                        3-Feb-05
SCC Upgrade CDR                                      28-Apr-05
Bus CDR                                              16-Jun-05
System CDR                                            7-Jul-05
Final Checkout SCC Upgrade                            8-Sep-05
Launch                                               27-Oct-05
Operations Q1                                         1-Feb-06
Operations Q2                                         2-May-06
Operations Q3                                        31-Jul-06
Operations Q4                                        31-Oct-06
</TABLE>

Note: See Program schedule for milestone definition

<PAGE>

                     SOLICITATION NUMBER HSCG23-04-R-ADA001

                                 PRICE PROPOSAL

                                       FOR

                                   COAST GUARD
                      AUTOMATIC IDENTIFICATION SYSTEM (AIS)
                                   REVISION A

                                  30 APRIL 2004

                                  SUBMITTED TO:

                               COMMANDANT (CG-851)
                        2100 SECOND STREET, SW, ROOM 2606
                            WASHINGTON, DC 20593-0001
                             TELEPHONE: 202-267-2285

                                  SUBMITTED BY:

                                                            21700 ATLANTIC BLVD.
                                                              DULLES, VA 22102
(ORBCOMM(R) LOGO)                                              WWW.ORBCOMM.COM

                                                              DUNS # 146-118-901

                            DISTRIBUTION RESTRICTIONS

This proposal or quotation includes data that shall not be disclosed outside of
the Government and shall not be duplicated, used, or disclosed in whole or in
part for any purpose other than to evaluate this proposal or quotation. If,
however, a contract is awarded to this offeror or quoter as a result of or in
connection with the submission of this data, the Government shall have the right
to duplicate, use or disclose the data to the extent provided in the resulting
contract. This restriction does not limit the Government's right to use
information contained in the data if it is obtained from another source without
restriction. The data subject to this restriction is contained in sheets marked
with the following legend: "Use Or Disclosure Of Data Contained On This Sheet Is
Subject To The Restriction On The Title Page Of This Proposal."

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

APPENDIX -A

          REFERENCE NO. OF DOCUMENT BEING CONTINUED HSCG23-04-R-ADA001

NAME OF OFFEROR OR CONTRACTOR: ORBCOMM

<TABLE>
<CAPTION>
ITEM NO.                         SUPPLIES/SERVICES                   QUANTITY   UNIT   UNIT PRICE     AMOUNT
  (A)                                   (B)                            (C)       (D)       (E)          (F)
--------   -------------------------------------------------------   --------   ----   ----------   ----------
<S>        <C>                                                       <C>        <C>    <C>          <C>
           FOB: Destination
           Period of Performance: 04/15/2004 to 12/31/2006

  00001    All work associated with the Concept Validation Payload     1.00      JB    $7,105,564   $7,105,564
           through launch IAW the attached statement of work

  00002    Operational evaluation and maintenance of the Concept       1.00      JB    $  380,068   $  380,068
           Validation Payload after launch IAW the attached
           statement of work

           RECURRING SERVICE (BASE YEARS)

 00002A    Option 1 - Low Usage                                        1.00      JB    $  198,000   $  198,000

 00002B    Option 2 - Medium Usage                                     1.00      JB    $  396,000   $  396,000

 00002C    Option 3 - High Usage                                       1.00      JB    $  594,000   $  594,000

  00003    All work associated with the Design of the AIS portion      1.00      JB    $  122,843   $  122,843
           of the planned ORBCOMM constellation replishment
           satellites IAW the attached statement of work

  00004    OPTION: Operational evaluation and maintenance of the       1.00      JB    $  397,913   $  397,913
           Concept Validation Payload after launch IAW the
           attached statement of work. One-year optional period

           RECURRING SERVICE (OPTION YEAR)

 00004A    Option 1 - Low Usage                                        1.00      JB    $  198,000   $  198,000

 00004B    Option 2 - Medium Usage                                     1.00      JB    $  396,000   $  396,000

 00004C    Option 3 - High Usage                                       1.00      JB    $  594,000   $  594,000
</TABLE>

                                        2
       Use Or Disclosure Of Data Contained On This Sheet is Subject To The
                 Restriction On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

          CONCEPT VALIDATION DEMONSTRATION INTEGRATION & LAUNCH (CVDIL)

<TABLE>
<CAPTION>
                                                                      CLIN 00001
                                 -----------------------------------------------------------------------------------
                                          2004                    2005                   2006
                                 ---------------------   ---------------------   -------------------
COST CATEGORY                         RATE       HOURS        RATE       HOURS       RATE      HOURS       TOTAL
-------------                    -------------   -----   -------------   -----   -----------   -----   -------------
<S>                              <C>             <C>     <C>             <C>     <C>           <C>     <C>
PRIME DIRECT LABOR
Business Analyst                 $       33.53     460   $       35.54     208   $     36.96     56    $   24,885.88
Controller/Tech Support          $       23.71      24   $       25.13     192   $     26.14     12    $    5,707.68
Junior Engineer                  $       32.86    2087   $       34.83    2767   $     36.22    563    $  185,345.29
Senior Engineer                  $       46.99    1716   $       49.81     929   $     51.80    114    $  132,813.53
Manager                          $       69.18    1045   $       73.33     652   $     76.26     70    $  125,442.46

                                      COST                    COST                   COST
SUBTOTAL                         $  237,499.60           $  202,676.54           $ 34,018.70

TOTAL PRIME DIRECT LABOR COSTS                                                                         $  474,194.84

Fringe Benefits %                        22.72%                  22.72%                22.72%          $  107,737.07

TOTAL DIRECT LABOR + FRINGE
BENEFITS                                                                                               $  581,931.91

SUBCONTRACTOR(SC) LABOR               COST                    COST                   COST
Subcontractor Direct Labor       $  264,582.00           $     436,320           $118,800.00           $     819,702
Subcontractor Management Cost            10.00%                     10%                   10%          $   81,970.20

TOTAL SUBCONTRACTOR COSTS                                                                                   901672.2

TOTAL DIRECT LABOR (PRIME +
SUB)                                                                                                   $1,483,604.11

MATERIAL                              COST                    COST                   COST
Material (Direct + SC)           $2,610,000.00           $1,580,000.00           $      0.00           $   4,190,000
Material Overhead %                       8.00%                   8.00%                 8.00%                 335200

TOTAL MATERIAL COST                                                                                    $4,525,200.00

OTHER DIRECT COSTS
                                      COST                    COST                   COST
Travel                           $   50,450.00           $   93,434.00           $      0.00           $     143,884
ODC Category                                 0                       0                     0           $           0

TOTAL ODCS                                                                                             $     143,884

TOTAL PROPOSED COST LESS G&A                                                                           $6,152,688.11
                                     G&A %
GENERAL & ADMINISTRATIVE (G&A)           89.95%                                                        $  426,538.26

TOTAL PROPOSED COST PLUS G&A                                                                           $6,579,226.37

FIXED FEE                                 8.00%                                                        $  526,338.11

TOTAL PROPOSED COST PLUS FIXED
FEE                                                                                                    $7,105,564.48
</TABLE>

                                        3
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                        On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

                    OPERATIONS SUPPORT MAINTENANCE & SERVICES

<TABLE>
<CAPTION>
                                                                CLIN 00002
                                 -----------------------------------------------------------------------
                                      2004               2005                  2006
                                 --------------   ------------------   -------------------
COST CATEGORY                     RATE    HOURS      RATE      HOURS       RATE      HOURS      TOTAL
-------------                    ------   -----   ----------   -----   -----------   -----   -----------
<S>                              <C>      <C>     <C>         <C>      <C>           <C>     <C>
PRIME DIRECT LABOR
Business Analyst                 $33.53     0     $    35.54     35    $     36.96     173   $  7,637.98
Controller/Tech Support          $23.71     0     $    25.13    704    $     26.14    3440   $107,613.12
Junior Engineer                  $32.86     0     $    34.83     51    $     36.22     253   $ 10,939.99
Senior Engineer                  $46.99     0     $    49.81     51    $     51.80     253   $ 15,645.71
Manager                          $69.18     0     $    73.33     53    $     76.26     259   $ 23,637.83

                                  COST               COST                  COST
                      SUBTOTAL   $ 0.00           $27,138.55           $138,336.08

TOTAL PRIME DIRECT LABOR COSTS                                                               $165,474.63

Fringe Benefits %                 22.72%               22.72%                22.72%          $ 37,595.84

TOTAL DIRECT LABOR + FRINGE
AND OH                                                                                       $203,070.47

SUBCONTRACTOR(SC) LABOR           COST               COST                  COST
Subcontractor Direct Labor       $    0           $        0           $         0                     0
Subcontractor Management Cost     10.00%               10.00%                10.00%                    0

TOTAL SUBCONTRACTOR COSTS                                                                              0

TOTAL DIRECT LABOR (PRIME +
SUB)                                                                                         $203,070.47

MATERIAL                          COST               COST                  COST
Material (Direct + SC)           $ 0.00           $     0.00           $      0.00           $         0
Material Overhead %                8.00%                8.00%                 8.00%                    0

TOTAL MATERIAL COST                                                                          $      0.00

OTHER DIRECT COSTS
                                  COST               COST                  COST
Travel                           $ 0.00           $     0.00           $      0.00           $         0
ODC Category                     $ 0.00           $     0.00           $      0.00           $         0

TOTAL ODCS                                                                                   $         0

TOTAL PROPOSED COST LESS G&A                                                                 $203,070.47
                                  G&A %
GENERAL & ADMINISTRATIVE (G&A)    89.95%                                                     $148,844.43

TOTAL PROPOSED COST PLUS G&A                                                                 $351,914.90

FIXED FEE                          8.00%                                                     $ 28,153.19

TOTAL PROPOSED COST PLUS FIXED
FEE                                                                                          $380,068.09
</TABLE>

                                        4
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                        On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

IMPLEMENTATION OF REPLACEMENT SPACECRAFT

<TABLE>
<CAPTION>
                                                              OPTION CLIN 00003
                                     ------------------------------------------------------------------
                                            2004               2005             2006
                                     ------------------   --------------   --------------
COST CATEGORY                           RATE      HOURS    RATE    HOURS    RATE    HOURS       TOTAL
-------------                        ----------   -----   ------   -----   ------   -----   -----------
<S>                                  <C>          <C>     <C>      <C>     <C>      <C>     <C>
PRIME DIRECT LABOR
Business Analyst                     $    33.53    172    $35.54     0     $36.96     0     $  5,767.16
Controller/Tech Support              $    23.71      0    $25.13     0     $26.14     0     $      0.00
Junior Engineer                      $    32.86    444    $34.83     0     $36.22     0     $ 14,589.84
Senior Engineer                      $    46.99    412    $49.81     0     $51.80     0     $ 19,359.88
Manager                              $    69.18    199    $73.33     0     $76.26     0     $ 13,766.82

   SUBTOTAL                          $53,483.70           $ 0.00           $ 0.00

TOTAL PRIME DIRECT LABOR COSTS                                                              $ 53,483.70

Fringe Benefits %                         22.72%           22.72%           22.72%          $ 12,151.50

TOTAL DIRECT LABOR + FRINGE                                                                 $ 65,635.20

SUBCONTRACTOR(SC) LABOR                 COST               COST             COST
Subcontractor Direct Labor                                                                            0
Subcontractor Management Cost             10.00%           10.00%           10.00%                    0

TOTAL SUBCONTRACTOR COSTS                                                                             0

TOTAL DIRECT LABOR (PRIME + SUB)                                                            $ 65,635.20

MATERIAL                                COST               COST             COST
Material (Direct + SC)               $     0.00           $ 0.00           $ 0.00           $         0
Material Overhead %                        8.00%            8.00%            8.00%                    0

TOTAL MATERIAL COST                                                                         $      0.00

OTHER DIRECT COSTS
                                        COST               COST             COST
Travel                               $     0.00           $ 0.00           $ 0.00           $         0
ODC Category                         $     0.00           $ 0.00           $ 0.00           $         0

TOTAL ODCS                                                                                  $         0

TOTAL PROPOSED COST LESS G&A                                                                $ 65,635.20
                                        G&A %
GENERAL & ADMINISTRATIVE (G&A)            89.95%                                            $ 48,108.59

TOTAL PROPOSED COST PLUS G&A                                                                $113,743.78

FIXED FEE                                  8.00%                                            $  9,099.50

TOTAL PROPOSED COST PLUS FIXED FEE                                                          $122,843.29
</TABLE>

                                        5
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

<PAGE>

                                                              HSCG23-04-R-ADA001
(ORBCOMM(R) LOGO)                                                COAST GUARD AIS

             OPTION YEAR -OPERATIONS SUPPORT MAINTENANCE & SERVICES

<TABLE>
<CAPTION>
                                             OPTION CLIN 00004
                                     --------------------------------
                                          YEAR 2007
                                     ------------------
COST CATEGORY                           RATE        HRS      TOTAL
-------------                        -----------   ----   -----------
<S>                                  <C>           <C>    <C>
PRIME DIRECT LABOR
Business Analyst                     $     38.44    208   $  7,995.52
Controller/Tech Support              $     27.19   4144   $112,675.36
Junior Engineer                      $     37.67    304   $ 11,451.68
Senior Engineer                      $     53.87    304   $ 16,376.48
Manager                              $     79.31    312   $ 24,744.72

                                         COST
   SUBTOTAL                          $173,243.76

TOTAL PRIME DIRECT LABOR COSTS                            $173,243.76

Fringe Benefits %                          22.72%         $ 39,360.98

TOTAL DIRECT LABOR + FRINGE                               $212,604.74

SUBCONTRACTOR(SC) LABOR                  COST
Subcontractor Direct Labor                                          0
Subcontractor Management Cost              10.00%                   0

TOTAL SUBCONTRACTOR COSTS                                           0

TOTAL DIRECT LABOR (PRIME + SUB)                          $212,604.74

MATERIAL                                 COST
Material (Direct + SC)               $      0.00          $         0
Material Overhead %                         8.00%                   0

TOTAL MATERIAL COST                                       $      0.00

OTHER DIRECT COSTS
                                         COST
Travel                               $      0.00          $         0
ODC Category                         $      0.00          $         0

TOTAL ODCS                                                $         0

TOTAL PROPOSED COST LESS G&A                              $212,604.74
                                        G&A %
GENERAL & ADMINISTRATIVE (G&A)             89.95%         $155,832.76

TOTAL PROPOSED COST PLUS G&A                              $368,437.50

FIXED FEE                                   8.00%         $ 29,475.00

TOTAL PROPOSED COST PLUS FIXED FEE                        $397,912.50
</TABLE>

                                        6
Use Or Disclosure Of Data Contained On This Sheet is Subject To the Restriction
                       On The Title Page Of This Proposal

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00103-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00103-of-00352.parquet"}]]