Document:

exv4w3

Exhibit 4.3

AMENDED AND RESTATED

STOCKHOLDERS AGREEMENT

OF

BOOZ ALLEN HAMILTON HOLDING CORPORATION

          This Amended and Restated Stockholders Agreement (this “Agreement”) is entered into as
of this 8th day of November, 2010, by and among (a) Booz Allen Hamilton Holding Corporation,
a Delaware corporation f/k/a Explorer Holding Corporation (the “Company”), (b)
Explorer Coinvest LLC, a Delaware limited liability company (the “Initial Carlyle
Stockholder”), (c) each Individual Stockholder that as of the date hereof is a party to
the Original Agreement and (d) each other Person who subsequently becomes a party to this
Agreement pursuant to the terms hereof. Certain capitalized terms used herein have the meanings
ascribed to them in Section 14 hereof.

RECITALS:

          WHEREAS, upon the terms and conditions set forth in the Agreement and Plan of Merger, dated as
of May 15, 2008 (as the same may be from time to time amended, modified, supplemented or restated,
the “Merger Agreement”), among Booz Allen Hamilton Inc., a Delaware corporation
(“BAH”), Booz Allen Investor Corporation, a Delaware corporation f/k/a Explorer Investor
Corporation (“Buyer”), Explorer Merger Sub Corporation, a Delaware corporation (“Merger
Sub”), Booz & Company Inc., a Delaware corporation, as Seller Representative, and the Company,
at the Effective Time (as defined in the Merger Agreement), Merger Sub merged with and into BAH,
with BAH as the surviving corporation (the “Merger”);

          WHEREAS, in connection with the Merger, the Company entered into a Stockholders Agreement,
dated as of July 30, 2008, with its stockholders as of that date (the “Original
Agreement”);

          WHEREAS, concurrently with the effectiveness of this Agreement, the Company has registered
shares of its common stock pursuant to an effective registration statement as part of an
underwritten initial public offering of its common stock (the “IPO”);

          WHEREAS, the Initial Carlyle Stockholder has entered into and may continue to enter into Proxy
and Tag-Along Agreements with Individual Stockholders (collectively, the “Proxy and Tag-Along
Agreements”);

          WHEREAS, in accordance with Section 16(k) of the Original Agreement, the Individual
Stockholders holding a majority of the Securities held by Individual Stockholders and each of the
current Executive Stockholders have provided their prior written consent to this amendment and
restatement of the Original Agreement, effective upon the effectiveness of the registration
statement relating to the IPO; and

          WHEREAS, the board of directors of the Company (the “Board”) has approved this
amendment and restatement of the Original Agreement;

 

 

          NOW, THEREFORE, in consideration of the mutual promises, covenants, representations and
warranties made herein and of the mutual benefits to be derived herefrom, the parties hereto agree
as follows:

Section 1. Board Representation.

          (a) Each Executive Stockholder and Carlyle Stockholder shall vote all of the Voting Shares
over which such Executive Stockholder or such Carlyle Stockholder has voting control and shall take
all other necessary or desirable actions within such Executive Stockholder’s or such Carlyle
Stockholder’s control (whether in such Executive Stockholder’s or such Carlyle Stockholder’s
capacity as a stockholder, director, member of a Board committee or officer of the Company or
otherwise, and including, without limitation, attendance at meetings in person or by proxy for
purposes of obtaining a quorum, execution of written consents in lieu of meetings, and approval of
amendments and/or restatements of the Company’s certificate of incorporation or by-laws) so that
(i) the authorized number of directors (the “Directors”) on the Board shall be at
least six and no greater than nine and (ii) the Directors shall be the persons nominated or
designated in accordance with this Section 1. The smallest number of Directors as shall
constitute a majority of the total number of Directors from time to time authorized to serve on the
Board shall be designated for nomination for election by the Carlyle Stockholders;
provided, however, that not more than three of such designees of the Carlyle
Stockholders at any time may be full-time employees of the Carlyle Stockholders or any of their
respective Affiliates (other than the Company and its subsidiaries), and any additional such
designees of the Carlyle Stockholders at any time shall be designated for nomination for election
after consultation with the Chief Executive Officer of the Company. Two of the Directors shall be
designated for nomination for election by the Chief Executive Officer of the Company and shall be
full-time employees of BAH; provided, however, that at any time when the Chief
Executive Officer of the Company is a natural person who has not been a full-time employee of BAH
for at least five years, such two Directors shall instead be designated for nomination for election
by the Executive Stockholders holding a majority of the Voting Shares held by all Executive
Stockholders (in either case, the individuals designated pursuant to this sentence shall be
referred to as the “Executive Directors”). Any remaining Directors shall be jointly
designated for nomination for election by the Chief Executive Officer and the Carlyle Stockholders;
provided, however, that if (x) the Chief Executive Officer of the Company
is a natural person who has not been a full-time employee of BAH for at least five years,
(y) such Chief Executive Officer of the Company has not been designated as a Executive
Director, and (z) the Carlyle Stockholders determine that such Chief Executive Officer of
the Company should serve as a Director, such Chief Executive Officer shall be so designated for
nomination for election and shall constitute one of such remaining Directors. Any Directors (other
than the Chief Executive Officer of the Company) designated pursuant to the immediately preceding
sentence, and any Directors designated by the Carlyle Stockholders who are not full-time employees
of the Carlyle Stockholders or any of their respective Affiliates (other than the Company and its
subsidiaries) and were designated after consultation with the Chief Executive Officer of the
Company are hereinafter sometimes referred to as the “Unaffiliated Directors”.

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          (b) The Company shall cause the individuals designated in accordance with Section 1(a)
to be nominated for election to the Board, shall solicit proxies in favor thereof, and at each
meeting of the stockholders of the Company at which directors of the Company are to be elected,
shall recommend that the stockholders of the Company elect to the Board each such individual
nominated for election at such meeting.

          (c) Except as would be contrary to any applicable law, rule or regulation (including any rule
or regulation of any exchange upon which securities of the Company or any of its subsidiaries may
be listed), each committee of the Board, and each committee of the board of directors of Buyer, BAH
and, unless otherwise determined by the Board, each other subsidiary of the Company, shall include
at least one Executive Director; provided, however that following an IPO no
Executive Director shall serve on any audit or compensation committee of any of the foregoing.

          (d) Subject to the provisions of the Company’s certificate of incorporation, a Director may be
removed from the Board upon the request of the Person or group of Persons that designated such
Director, and not otherwise; provided that nothing in this Agreement shall be construed to
impair any rights that the Stockholders of the Company may have to remove any Director for cause;
provided, further, that any Executive Director shall be removed automatically from
the Board upon such Executive Director’s Termination of Service.

          (e) In the event that any Director for any reason ceases to serve as a member of the Board
during his term of office, the Person or group of Persons who designated such Director shall have
the right to designate for appointment by the remaining Directors of the Company an individual to
fill the vacant directorship. Each of the Company, the Carlyle Stockholders and the Executive
Stockholders agrees to take such actions as will result in the appointment as soon as practicable
of any individual so designated by each such Person or group of Persons.

          (f) At such time as the Carlyle Stockholders cease collectively to own and have the power to
dispose of Company Common Stock, Company Non-Voting Common Stock and Company Restricted Common
Stock representing at least forty percent (40%) of the interests in the Company represented by all
issued and outstanding shares of Company Common Stock, Company Non-Voting Common Stock and Company
Restricted Common Stock, the Carlyle Stockholders and the Executive Stockholders shall discuss and
use commercially reasonable efforts to agree upon, and, subject to Section 16(k), shall
amend this Agreement to effect, appropriate amendments to this Section 1 and such other
provisions of this Agreement as shall be appropriate, in each case to be consistent with the
ownership position of the Carlyle Stockholders at that time.

          (g) For so long as the Company qualifies as a “controlled company” under the applicable
listing standards then in effect, the Company will elect to be a “controlled company” for purposes
of such applicable listing standards, and will disclose in its annual meeting proxy statement that
it is a “controlled company” and the basis for that determination. The Company, the Carlyle
Stockholders and the Executive Stockholders acknowledge and agree that, as of the

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date of this Agreement, the Company is a “controlled company.” After the Company ceases to
qualify as a “controlled company” under applicable listing standards then in effect, each of the
Carlyle Stockholders and the Executive Stockholders acknowledges that a sufficient number of their
designees will be required to qualify as “independent directors” to ensure that the Board complies
with such applicable listing standards in the time periods required by the applicable listing
standards then in effect, and shall discuss and use commercially reasonable efforts to agree upon
appropriate changes to their designees consistent with the foregoing.

Section 2. Restrictions on Transfer.

          Except for (a) Transfers following the day that is one hundred eighty (180) days (or
such shorter or longer period as agreed upon by the underwriters and the Company to be appropriate)
after the consummation of the IPO; (b) Transfers effected by the Executive Stockholders
pursuant to the exercise of Bring-Along Rights by the Carlyle Stockholders pursuant to Section
4 below; (c) Transfers effected pursuant to the Proxy and Tag-Along Agreements;
(d) Transfers effected pursuant to Section 6 below, and (e) any Permitted
Transfer (as defined in Section 5), no Individual Stockholder shall Transfer any Securities
without the prior written approval of the Company. Each Individual Stockholder further agrees that
in connection with any Permitted Transfer, such Individual Stockholder shall, if requested by the
Company, deliver to the Company an opinion of counsel, in form and substance reasonably
satisfactory to the Company and counsel for the Company, to the effect that such Transfer is not in
violation of the Securities Act of 1933, as amended, and the rules and regulations promulgated
thereunder (the “Securities Act”), or the securities laws of any state. Any purported
Transfer in violation of the provisions of this Section 2 shall be null and void and shall
have no force or effect. It shall be a condition to any Permitted Transfer and (unless waived by
the Company) any Transfer by any Individual Stockholder approved by the Company, that the
transferee shall (i) agree to become a Party to this Agreement as a “Management
Stockholder” or an “Other Stockholder”, as the case may be, (ii) execute a signature page
in the form attached as Exhibit A hereto acknowledging that such transferee agrees to be
bound by the terms hereof and (iii) if such transferee is a natural person and a resident
of a state with a community or marital property system, cause such transferee’s spouse to execute a
spousal waiver in the form attached as Exhibit B. Notwithstanding anything to the contrary
in this Agreement, the Company agrees that any Management Stockholder may pledge or otherwise use
Company Common Stock, vested Company Restricted Common Stock or Company Non-Voting Common Stock to
secure financing from a lender (a “Lender”) in connection with payment of the exercise
price with respect to any Company Option or the payment of any withholding or other taxes due in
connection with any Security issued under the Equity Incentive Plan, Company Rollover Stock Plan or
any similar equity-based plan approved by the Board; provided, however, that the
Lender shall be acceptable to the Company and the terms of any such pledge or other financing shall
(i) provide that the Lender or any Person (a “Foreclosure Transferee”) to whom
ownership of the pledged Company Common Stock or Company Non-Voting Common Stock is transferred
upon default, foreclosure or like events (the “Foreclosed Securities”) shall upon taking
ownership of any such Foreclosed Securities become a party to this Agreement and be subject to the
terms and provisions of the Company Rollover Stock Plan, the Equity Incentive Plan or other equity
incentive plan of the Company, as applicable, and any award agreement to which the Foreclosed

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Securities transferred to the Foreclosure Transferee were subject immediately prior to such
Transfer; (ii) provide that upon and following any such transfer of ownership of any such
Foreclosed Securities the Company may, without any action or consent of the Lender or any holder or
owner thereof, convert any Company Common Stock to Company Non-Voting Common Stock, (iii)
in addition to any right to repurchase the Foreclosed Securities pursuant to the Company Rollover
Stock Plan or Section 8, provide the Company with the right to repurchase the Foreclosed
Securities at their Fair Market Value during the period beginning on the date the Company becomes
aware of the transfer of the Foreclosed Securities and ending on the date nine (9) months
thereafter and (iv) be otherwise reasonably acceptable to the Company. Any such repurchase
shall be subject to the same notice and delay provisions as shares purchased on Termination of
Service pursuant to Section 8.

Section 3. Leadership Team.

          (a) For so long as any Management Stockholder serves as a member of the Leadership Team, such
Management Stockholder, together with each of such Management Stockholder’s Permitted Transferees,
shall be an “Executive Stockholder” for the purposes of this Agreement and such Management
Stockholder shall execute a joinder to this Agreement in the form attached hereto as Exhibit
A-3.

          (b) At such time as any Management Stockholder ceases to serve as a member of the Leadership
Team, such Management Stockholder, together with each of such Management Stockholder’s Permitted
Transferees, shall cease to be an “Executive Stockholder” for the purposes of this Agreement and
such Management Stockholder shall execute a separation agreement, solely with respect to such
Management Stockholder’s and each of such Management Stockholder’s Permitted Transferees’ status as
an Executive Stockholder under this Agreement, in the form attached hereto as Exhibit C.

          (c) Notwithstanding anything to contrary herein, nothing in this Section 3 shall
affect any rights or obligations that any Person may otherwise have as a Management Stockholder,
Other Stockholder or Individual Stockholder and, for the avoidance of doubt, the provisions of
Section 1, Section 4 and Section 16(m) of this Agreement shall not apply to
any Individual Stockholders other than the Executive Stockholders.

Section 4. Bring-Along Rights.

          (a) If one or more Carlyle Stockholders, in one transaction or a series of related
transactions that would constitute both a Company Sale and a Change in Control (as defined in the
Company Rollover Stock Plan), propose(s) to Transfer any Securities to one or more Persons other
than an Affiliate of the Carlyle Stockholders (each such Person, a “Third Party
Purchaser”), then the Carlyle Stockholders shall have the right (a “Bring-Along
Right”), but not the obligation, to require each Executive Stockholder that is an Executive
Stockholder both upon receipt of the Bring-Along Notice (defined below) and upon the closing of the
proposed Transfer to sell to the Third Party Purchaser(s), on the Same Terms and Conditions as
apply to the Carlyle Stockholders exercising their Bring-Along Right, that number of Securities
equal to (i) the total number of Securities owned by such Executive Stockholder
multiplied by

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(ii) a fraction, (A) the numerator of which is the total number of Securities
to be sold by the Carlyle Stockholders in connection with such transaction or series of related
transactions and (B) the denominator of which is the total number of the Securities
collectively held by all Carlyle Stockholders. Notwithstanding anything to the contrary in this
Section 4, if the Carlyle Stockholders require an Executive Stockholder to sell any Company
Options issued under the Company Rollover Stock Plan to a Third Party Purchaser pursuant to this
Section 4, such Executive Stockholder (and, if applicable, a Permitted Transferee and/or
Related Trust of such Executive Stockholder) shall also sell, for no additional consideration, a
corresponding number of shares of Company Special Voting Stock to such Third Party Purchaser.

          (b) Any Carlyle Stockholders exercising their Bring-Along Right under this Section 4
shall deliver a written notice (a “Bring-Along Notice”) to each Executive Stockholder. The
Bring-Along Notice shall set forth: (i) the name of the Third Party Purchaser(s) and the
number of Securities proposed to be sold by the Carlyle Stockholders to such Third Party
Purchaser(s); (ii) the proposed amount and form of consideration and material terms and
conditions of payment offered to such Executive Stockholder by the Third Party Purchaser(s) and a
summary of any other material terms pertaining to the Transfer (the “Third Party Terms”);
and (iii) the number of Securities that such Executive Stockholder shall be required to
sell in such Transfer (as determined in accordance with Section 4(a) above). The
Bring-Along Notice shall be given at least fifteen (15) Business Days before the closing of the
proposed Transfer.

          (c) Upon each Executive Stockholder’s receipt of a Bring-Along Notice, such Executive
Stockholder shall be obligated to sell such number of Securities as is set forth in the Bring-Along
Notice on the Third Party Terms; provided, however, that no Executive Stockholder
shall be required to bear more than such Executive Stockholder’s pro rata share (determined based
on the number of Securities sold in the transactions contemplated by the Bring-Along Notice) of all
liabilities for the representations, warranties and other obligations incurred in connection with
the transactions contemplated by the Bring-Along Notice (other than with respect to representations
and warranties relating to the ownership of such Executive Stockholder’s Securities or otherwise
relating solely to such Executive Stockholder).

          (d) At the closing of the Transfer to any Third Party Purchaser(s) pursuant to this
Section 4, the Third Party Purchaser(s) shall remit to each Executive Stockholder
(i) the consideration (as reduced by Section 4(g)) for the Securities held by such
Executive Stockholder and being sold pursuant hereto, minus (ii) such Executive
Stockholder’s pro rata portion of any consideration to be placed in escrow or otherwise held back
in accordance with the Third Party Terms, minus (iii) the aggregate exercise price
of any Company Options being Transferred by such Executive Stockholder to such Third Party
Purchaser(s), against transfer of such Securities, free and clear of all liens and encumbrances, by
delivery by such Executive Stockholder of (A) certificates for such Securities, duly
endorsed for Transfer or with duly executed stock powers reasonably acceptable to the Company and
such Third Party Purchaser(s) and/or (B) an instrument evidencing the Transfer or the
cancellation of the Company Options subject to the Bring-Along Right reasonably acceptable to the
Company and such Third Party Purchaser(s), and the compliance by such Executive Stockholder with
any other conditions to closing or payment of consideration generally applicable to the Carlyle
Stockholders and all other

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Stockholders selling Securities in such transaction. In the event that the proposed Transfer
to such Third Party Purchaser is not consummated, the Bring-Along Right shall continue to be
applicable to any proposed subsequent Transfer of Securities by the Carlyle Stockholders pursuant
to this Section 4.

          (e) In the event that any Carlyle Stockholders exercise their rights pursuant to this
Section 4 or a Company Sale is approved by the Board and the holders of a majority of the
then-outstanding Voting Shares, each Executive Stockholder shall consent to and raise no objections
against such transaction, and shall take all actions that the Board and/or the applicable Carlyle
Stockholders reasonably deem necessary or desirable in connection with the consummation of such
transaction; provided, that (x) the acquisition of the Securities held by each
Executive Stockholder in connection with such transaction shall be on the Same Terms and Conditions
as the acquisition of the Securities held by the Carlyle Stockholders in connection with such
transaction and (y) no Executive Stockholder shall be required to bear more than such
Executive Stockholder’s pro rata share (determined based on the number of Securities sold in
connection with such Company Sale) of all liabilities of the Stockholders for the representations,
warranties and other obligations incurred in connection with such Company Sale (other than with
respect to representations and warranties relating to the ownership of such Executive Stockholder’s
Securities or otherwise relating solely to such Executive Stockholder). Without limiting the
generality of the foregoing, each Executive Stockholder agrees, subject to the foregoing proviso,
that it shall (i) consent to and raise no objections against such transaction; (ii)
execute any purchase agreement, merger agreement or other agreement in connection with such
transaction setting forth the terms and conditions of such transaction and any ancillary agreement
with respect thereto; (iii) vote any Voting Shares held by such Executive Stockholder in
favor of such transaction (including, without limitation, executing a written consent of
stockholders approving such transaction); and (iv) refrain from the exercise of appraisal
rights with respect to such transaction.

          (f) If the Company or the holders of the Company’s securities enter into any transaction for
which Rule 506 (or any similar rule then in effect) promulgated under the Securities Act may be
available (including, without limitation, a merger, consolidation or other reorganization), each
Executive Stockholder shall, if requested by the Company, appoint a purchaser representative (as
such term is defined in Rule 501 of the Securities Act) reasonably acceptable to the Company. If
such purchaser representative was designated by the Company, the Company shall pay the fees and
expenses of such purchaser representative, but if any Individual Stockholder appoints another
purchaser representative, such Individual Stockholder shall be responsible for the fees and
expenses of the purchaser representative so appointed.

          (g) Each Stockholder shall bear its pro rata share of the fees, costs and expenses of any
Company Sale or other transaction (pursuant to this Agreement or otherwise) in which it sells
Securities.

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Section 5. Permitted Transfers.

          (a) Notwithstanding anything herein to the contrary, the restrictions set forth in the first
sentence of Section 2 shall not apply to: (i) any Transfer of Company Common
Stock, Company Restricted Common Stock or Company Non-Voting Common Stock by an Individual
Stockholder that is a natural person (or a trust or entity of the type described below) (A)
by gift to, or for the benefit of, any member or members of his or her immediate family (which
shall include any spouse, or any lineal ancestor or descendant, niece, nephew, adopted child or
sibling of him or her or such spouse, niece, nephew or adopted child), (B) to a trust under
which the distribution of the Securities may be made only to such Individual Stockholder and/or
such Individual Stockholder’s immediate family or (C) to a partnership or limited liability
company for the benefit of the immediate family of such Individual Stockholder and the partners or
members of which are only such Individual Stockholder and such Individual Stockholder’s immediate
family; (ii) any Transfer of such Securities by an Individual Stockholder that is a natural
person to the heirs, executors or legatees of such Individual Stockholder by operation of law or
court order upon the death or incapacity of such Individual Stockholder; or (iii) any
Transfer of such Securities by an Individual Stockholder that is not a natural person to an
Affiliate; provided, that such Affiliate does not engage in any Competitive Activity (each
of the Transfers referenced in clauses (i), (ii) and (iii) above which is otherwise in accordance
with the provisions of this Section 5 is referred to herein as a “Permitted
Transfer”). Upon any Permitted Transfer of Company Common Stock, the transferor shall retain a
proxy to vote the same or shall (x) exchange the same with the Company for a share of
Company Non-Voting Common Stock and, if such transferor so chooses (y) purchase from the
Company for its par value a share of Company Special Voting Stock and Transfer in such Permitted
Transfer only the share of Company Non-Voting Common Stock. In all such cases the Company shall
take all reasonable actions to cooperate with the transferee and promptly effectuate any required
exchanges or other arrangements contemplated hereby. The recipient of any Securities pursuant to
the foregoing shall be referred to herein as a “Permitted Transferee” and shall be deemed a
“Management Stockholder”, an “Other Stockholder”, or an “Executive Stockholder”, as the case may
be, for all purposes of this Agreement.

          (b) Each Individual Stockholder shall give the Company at least twenty (20) days’ prior
written notice of any proposed Transfer pursuant to Section 5(a) above and prompt notice of
any such actual Transfer.

Section 6. Registration Rights

          (a) At any time, the Carlyle Stockholders may request in writing that the Company effect the
registration of all or any part of the Registrable Securities held by the Carlyle Stockholders in
an underwritten public offering (a “Registration Request”). The Company will use its best
efforts to register, in accordance with the provisions of this Agreement, all Registrable
Securities that have been requested to be registered by the Carlyle Stockholders in the
Registration Request; provided, that (i) managing underwriters’ estimate of the
aggregate offering price of the Securities requested to be included in such Registration is at
least $75,000,000 and (ii) the Company shall not be required to register Registrable
Securities

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during the period starting with the date sixty (60) days prior to the Company’s estimated date
of filing of, and ending on a date one hundred and eighty (180) days after the effective date of, a
registration initiated by the Company; provided that (x) in the case of a
Registration Request received by the Company prior to the filing by the Company of such
registration, the Company had been in good faith planning to file a registration statement within
sixty (60) days of the Company’s receipt of such Registration Request and (y) the Company
is actively employing in good faith all reasonable efforts to cause the applicable registration
statement to become effective and that the Company’s estimate of the date of filing such
registration statement is made in good faith. Any registration requested by the Carlyle
Stockholders pursuant to this Section 6(a) is referred to in this Agreement as a
“Demand Registration”. In connection with a Demand Registration, the Company shall have
the right to select the underwriters to administer the offering, subject to the reasonable approval
of the Carlyle Stockholders.

          (b) If the Company at any time proposes to register any shares of Company Common Stock under
the Securities Act (including pursuant to a Registration Request), whether or not for sale for its
own account (other than pursuant to a Special Registration) and the registration form to be used
may also be used for the registration of Registrable Securities owned by the Stockholders, the
Company shall notify the Stockholders at least twenty (20) days prior to the planned effective date
of the registration statement in connection therewith. Upon the receipt of a written request of
any Stockholder made within ten (10) days after such notice (which request shall specify the
Registrable Securities intended to be disposed of by such Stockholder and the intended method of
disposition thereof), the Company will, subject to the other provisions of this Section 6,
include in such registration all Registrable Securities with respect to which the Company has
received a written request for inclusion (a “Piggyback Registration”). Each such request
shall also contain an undertaking from the applicable Stockholder to provide all such information
and material and to take all actions as may be reasonably required by the Company in order to
permit the Company to comply with all applicable federal and state securities laws.

          (c) Each selling Stockholder shall pay all sales commissions or other similar selling charges
with respect to Registrable Securities sold by such Stockholder pursuant to a Piggyback
Registration. The Company shall pay all registration and filing fees, fees and expenses of
compliance with federal and state securities laws, printing expenses, messenger and delivery
expenses, fees and disbursements of counsel and accountants for the Company in connection with any
registration, including, without limitation, a Demand Registration, unless the applicable state
securities laws require that stockholders whose securities are being registered pay their pro rata
share of such fees, expenses and disbursements, in which case each Stockholder participating in the
registration shall pay its pro rata share of all such fees, expenses and disbursements based on its
pro rata share of the total number of shares being registered.

          (d) If a Demand Registration or Piggyback Registration is an underwritten registration, only
Registrable Securities which are to be distributed by the underwriters may be included in the
registration. If the managing underwriters or, if the Demand Registration or the Piggyback
Registration is not an underwritten registration, the Company’s investment bankers, advise the
Company that in their opinion the number of Securities requested to be included in

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such registration exceeds the number which can be sold in such offering or will have a
material adverse effect on the price of the Registrable Securities to be sold, the Company will
include in such registration or prospectus only such number of Securities that in the reasonable
opinion of such underwriters or investment bankers can be sold without adversely affecting the
marketability or price of the offering, which securities will be so included in the following order
of priority: (i) for registrations pursuant to Section 6(a) or Section
6(b) in connection with Demand Registrations, first, Registrable Securities of the
Stockholders who have requested registration of their Registrable Securities pursuant to
Section 6(a) or Section 6(b), pro rata on the basis of the aggregate number of such
Registrable Securities proposed to be registered by such Stockholders, second, any
Securities proposed to be registered by the Company; and (ii) for registrations pursuant to
Section 6(b) (other than in connection with Demand Registrations, which are addressed in
clause (i)), first, Securities proposed to be registered by the Company, and
second, Registrable Securities of the Stockholders who have requested registration of their
Registrable Securities pursuant to Section 6(b), pro rata on the basis of the aggregate
number of such Registrable Securities proposed to be registered by such Stockholders.
Notwithstanding the foregoing, if the managing underwriters or, if the registration is not an
underwritten registration, the Company’s investment bankers, advise the Company that in their
opinion, the inclusion in a Demand Registration or a Piggyback Registration of Registrable
Securities held by the Management Stockholders will have a material adverse effect on the offering,
then to the extent a greater reduction in the participation by Management Stockholders is approved
in writing by at least two Senior Officers, the Company may reduce such Management Stockholder
participation in such relatively greater proportion.

          (e) Notwithstanding the foregoing, if at any time after giving written notice to the
Stockholders of its intention to register any shares of Company Common Stock pursuant to
Section 6(b) (other than Demand Registrations) and prior to the effective date of the
registration statement filed in connection with such registration, the Company shall determine in
accordance with the provisions of this Agreement not to register such securities, the Company may,
at its election, give written notice of such determination to each Stockholder and thereupon shall
be relieved of its obligation to register Registrable Securities as part of such terminated
registration (but not from its obligation to pay expenses in connection therewith as provided in
Section 6(c) above). Similarly, notwithstanding the foregoing, if at any time after giving
written notice to the Company of its Registration Request pursuant to Section 6(a) and
prior to the effective date of the registration statement filed in connection with such
registration, the applicable Carlyle Stockholders shall determine in accordance with the provisions
of this Agreement not to register such securities, the applicable Carlyle Stockholders may, at
their election, give written notice of such determination to the Company (which, in turn shall give
written notice to each Individual Stockholder) and thereupon the applicable Carlyle Stockholders
and the Company shall be relieved of their respective obligations to register Registrable
Securities as part of such terminated registration (but the Company shall not be relieved from its
obligation to pay expenses in connection therewith as provided in Section 6(c)). If a
registration pursuant to this Section 6 involves an underwritten public offering or
Individual Stockholder requests to be included in such registration, such Individual Stockholder
may elect, in writing prior to the effective date of the registration statement filed in connection
with such registration, not to participate in such registration.

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          (f) Except as part of the applicable registered offering, each Stockholder agrees not to sell
or offer for public sale or distribution, including pursuant to Rule 144, any of such Stockholder’s
Registrable Securities within fifteen (15) days prior to or one-hundred and eighty (180) days (or
such shorter or longer period as determined by the underwriters and the Company to be appropriate)
after the effective date of any registration (other than a Special Registration) with respect to
which registration rights are available pursuant to this Section 6.

          (g) The procedures to be used by the Company in effecting the registration of any Registrable
Securities pursuant to this Section 6 and the rights of any holder of Registrable
Securities shall be those customary for demand registrations and piggyback registrations and shall
be subject to (i) without limitation of such Stockholder’s obligations under Section
6(a) or Section 6(b), the Company’s right to request customary undertakings on the part
of the sellers of any Registrable Securities with respect to holdbacks and the furnishing of such
information for inclusion in any Registration Statement to be used in connection with such sale as
is customarily provided by selling stockholders, and (ii) in connection with any
underwritten offering which includes Registrable Securities held by any Stockholder to be
registered pursuant to this Section 6, the execution by such Stockholder of a customary
underwriting agreement with the underwriters for such offering.

Section 7. Indemnification.

          (a) The Company agrees to indemnify, to the extent permitted by law, each Stockholder
participating in a registration pursuant to this Agreement, the officers and directors of such
Stockholder and each Person that controls such Stockholder (within the meaning of the Securities
Act) against any and all losses, claims, damages, liabilities and expenses, including, without
limitation, all reasonable legal fees, incurred in connection therewith, arising out of, based upon
or resulting from (i) any untrue statement or alleged untrue statement of a material fact
contained in any registration statement, prospectus or preliminary prospectus, or any amendment
thereof or supplement thereto, (ii) any omission or alleged omission of a material fact
required to be stated therein or necessary to make the statement therein not misleading in light of
the circumstances then existing or (iii) any violation or alleged violation by the Company
of any federal, state, foreign or common law rule or regulation applicable to the Company and
relating to action required of or inaction by the Company in connection with any such registration,
except, in each case, insofar as it is judicially determined that the liability resulted from
information furnished in writing to the Company by such Stockholder and stated by the Stockholder
to be used therein or, in the case of an underwritten offering only, from such Stockholder’s
failure to deliver a copy of the registration statement, prospectus or preliminary prospectus or
any amendments thereof or supplements thereto.

          (b) Each Stockholder participating in a registration pursuant to this Agreement agrees to
indemnify, to the extent permitted by law, the Company, its directors and officers and each Person
that controls (within the meaning of the Securities Act) the Company against any and all losses,
claims, damages, liabilities and expenses, including, without limitation, all reasonable legal
fees, incurred in connection therewith, arising out of, based upon or resulting from (i)
any untrue statement or alleged untrue statement of material fact contained

11

 

in any registration statement, prospectus or preliminary prospectus, or any amendment thereof
or supplement thereto, or (ii) any omission or alleged omission of a material fact required
to be stated therein or necessary to make the statements therein not misleading in light of the
circumstances then existing, but only to the extent that such untrue statement is contained in or
(as to the matters set forth in such information or affidavit) such omission is omitted from any
information or affidavit furnished to the Company in writing by such Stockholder and stated to be
expressly for use therein; provided, that such Stockholder’s obligations hereunder shall be
limited to an amount equal to the proceeds to such Stockholder of the Registrable Securities sold
pursuant to such registration statement.

          (c) In connection with an underwritten offering, the Company and each Stockholder
participating in the related registration will indemnify the underwriter(s), their officers and
directors and each Person who controls such underwriter(s) (within the meaning of the Securities
Act) to the same extent as provided in this Section 7.

          (d) Any Person entitled to indemnification under this Section 7 shall (i) give
prompt written notice to the indemnifying party of any claim with respect to which it seeks
indemnification and (ii) unless in such indemnified party’s reasonable judgment a conflict
of interest between such indemnified and indemnifying parties may exist with respect to such claim,
permit such indemnifying party to assume the defense of such claim with counsel reasonably
satisfactory to the indemnified party. If such defense is assumed, the indemnifying party will not
be subject to any liability for any settlement made by the indemnified party without its consent
(but such consent will not be unreasonably withheld). An indemnifying party who is not entitled
to, or elects not to, assume the defense of a claim will not be obligated to pay the fees and
expenses of more than one counsel for all parties indemnified by such indemnifying party with
respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of
interest may exist between such indemnified party and any other of such indemnified parties with
respect to such claim.

          (e) The indemnification provided for under this Agreement will remain in full force and effect
regardless of any investigation made by or on behalf of the indemnified party or any officer,
director or controlling Person of such indemnified party and will survive the registration and sale
of any securities by any Person entitled to any indemnification hereunder and the expiration or
termination of this Agreement.

          (f) If the indemnification provided for in this Section 7 is held by a court of
competent jurisdiction to be unavailable to an indemnified party with respect to any loss,
liability, claim, damage or expense referred to therein, then the indemnifying party, in lieu of
indemnifying such indemnified party hereunder, will contribute to the amount paid or payable by
such indemnified party as a result of such loss, liability, claim, damage or expense in such
proportion as is appropriate to reflect the relative fault of the indemnifying party on the one
hand and of the indemnified party on the other hand in connection with the statements or omissions
which resulted in such loss, liability, claim, damage or expense as well as any other relevant
equitable considerations. The relevant fault of the indemnifying party and the indemnified party
will be determined by reference to, among other things, whether the untrue or alleged untrue

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statement of a material fact or the omission to state a material fact relates to information
supplied by the indemnifying party or by the indemnified party and the parties’ relative intent,
knowledge, access to information and opportunity to correct or prevent such statement or omission.
Notwithstanding the foregoing, the amount any Stockholder will be obligated to contribute pursuant
to this Section 7(f) will be limited to an amount equal to the proceeds to such Stockholder
of the Registrable Securities sold pursuant to the registration statement which gives rise to such
obligation to contribute (less the aggregate amount of any damages which the Stockholder has
otherwise been required to pay in respect of such loss, claim, damage, liability or action or any
substantially similar loss, claim, damage, liability or action arising from the sale of such
Registrable Securities).

Section 8. Rights to Repurchase Securities held by Management Stockholders.

          (a) During the period beginning on the date of a Termination of Service of a Management
Stockholder, and ending on the date nine (9) months following the later of (i) the date of
such Termination of Service, (ii) the date of the exercise of any vested Company Options
held by such Management Stockholder and (iii) the date that the Company becomes aware that
a Management Stockholder has since the date of this Agreement engaged in or is engaging in
Competitive Activity, the Company shall have the option to repurchase the Securities issued
pursuant to the Equity Incentive Plan (or any similar equity-based plans approved by the Board,
other than the Company Rollover Stock Plan (which contains provisions applicable to the Securities
to which it relates)) held by such terminated Management Stockholder and/or his Related Trusts and
Permitted Transferees (collectively, the “Management Securities Call Right”). The
Management Securities Call Right may be exercised more than once. The Management Securities Call
Right shall be exercised by written notice (the “Management Securities Call Notice”) to
such Management Stockholder given in accordance with Section 16(f) below on or prior to the
last day on which the Management Securities Call Right may be exercised by the Company.
Notwithstanding the foregoing, the Company does not intend to exercise its Management Securities
Call Right with respect to any Security unless the Security has been held by the Management
Stockholder (and/or his or her Related Trusts or Permitted Transferees) for at least six months.

          (b) The purchase price payable for such Securities held by such Management Stockholder by the
Company upon exercise of the Management Securities Call Right (the “Management Securities
Purchase Price”) shall be as follows:

          (i) If the Management Stockholder’s employment is terminated by the Company for Cause,
the purchase price for any Securities shall equal the lower of (A) (1) until
the date that is five years after the initial grant of the award (as defined in the Equity
Incentive Plan or any similar equity-based plan) pursuant to which the securities were
issued, 90% of the Fair Market Value of such Securities as of the date of the Management
Securities Call Notice (the “Repurchase Date”) and (2) thereafter, the Fair
Market Value, as of the Repurchase Date and (B) the aggregate cash price paid for
such Securities, if any, by such Management Stockholder.

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          (ii) If the Management Stockholder’s employment is terminated by the Company without
Cause, by reason of such Management Stockholder’s death, or Disability, or in a Company
Approved Termination, the purchase price for any Securities shall equal the Fair Market
Value of such Securities as of the Repurchase Date.

          (iii) If the Management Stockholder’s employment terminates for any other reason, the
purchase price for any Securities shall equal the Fair Market Value, as of the Repurchase
Date.

          (iv) If the Management Stockholder’s employment terminates or the Management
Stockholder engages in Competitive Activity following a transfer of Foreclosed Securities by
such Management Stockholder, any such Foreclosed Securities shall be subject to the
Management Securities Call Right provided in this Section 8 and, if any such
Foreclosed Securities were purchased pursuant to Section 2 at a price in excess of
the price that would be payable upon exercise of the Management Securities Call Right with
respect to such Foreclosed Securities pursuant to this Section 8, then any purchase
price payable upon the exercise of the Management Securities Call Right shall be reduced
(but not below zero) by the excess of the purchase price paid by the Company for the
Foreclosed Securities pursuant to Section 2 over the price that would have otherwise
been payable for the purchase of such Foreclosed Securities pursuant to this Section
8.

     If and to the extent the Company exercises its right to repurchase any such Securities
pursuant to this Section 8, any such Management Stockholder shall be obligated to sell such
Securities to the Company.

          (c) The repurchase of Securities pursuant to the exercise of the Management Securities Call
Right shall take place on a date specified by the Company, but in no event later than sixty (60)
days following the date of the exercise of such Management Securities Call Right or, if later,
within ten (10) days following the receipt by the Company of all necessary governmental approvals.
On such date, such Management Stockholder shall transfer the Securities subject to the Management
Securities Call Notice to the Company, free and clear of all liens and encumbrances, by delivering
to the Company the certificates or other documents representing the Securities to be purchased,
duly endorsed for transfer to the Company or accompanied by a stock power duly executed in blank,
in each case reasonably acceptable to the Company, and the Company shall pay to such Management
Stockholder the Management Securities Purchase Price in cash or by bank or cashier’s check.

          (d) Notwithstanding any other provision of this Section 8, the Company shall not be
permitted or obligated to make any payment with respect to a repurchase of any Securities from a
Management Stockholder if (i) such repurchase (or the payment of a dividend by a Subsidiary
to the Company to fund such repurchase) would result in a violation of the terms or provisions of,
or result in a default or an event of default under any guaranty, financing or security agreement
or document entered into by the Company or any Subsidiary from time to time (the “Financing
Agreements”), (ii) such repurchase would violate any of the terms or

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provisions of the certificate of incorporation of the Company or (iii) the Company has
no funds legally available to make such payment under the General Corporation Law of the State of
Delaware (each such event in clause (i), (ii) or (iii), a “Repurchase Disability”);
provided, that (x) the Company shall notify in writing the Management Stockholder
with respect to whom the repurchase right has been exercised (a “Disability Notice”) and
(y) the Disability Notice shall specify the nature of the Repurchase Disability. If a
repurchase by the Company otherwise permitted under this Section 8 is prevented by a
Repurchase Disability: (i) the purchase and payment of the applicable purchase price shall
be postponed and will take place at the first opportunity thereafter when the Company has funds
legally available to make such payment and when such payment will not result in any default, event
of default or violation under any of the Financing Agreements or in a violation of any term or
provision of the certificate of incorporation of the Company, (ii) such repurchase
obligation shall rank against other similar repurchase obligations with respect to Securities
according to priority in time of the termination date giving rise to such repurchase
(provided that any repurchase commitment arising from a termination of employment because
of Disability or death shall have priority over any other repurchase obligation) and (iii)
the applicable purchase price (except in the case of a termination for Cause) shall be either, in
the Company’s discretion, as determined on the date the Company exercises its repurchase right, (i)
increased by an amount equal to interest on such purchase price for the period during which payment
is delayed at the market interest rate determined by the Company or (ii) the Fair Market Value of
the Securities as of the date that the Repurchase Disability ceases to be applicable;
provided, however, that if the Company has not repurchased Securities pursuant to
this Section 8 within four years following the delivery of a Disability Notice, the Company
shall thereafter have no right or obligation to repurchase such Securities.

          (e) If a Management Stockholder’s employment with the Company is terminated other than
(x) by the Company without Cause, (y) by reason of the Management Stockholder’s
death or Disability or (z) in a Company Approved Termination, the Company shall have the
option, for so long as it has a Management Securities Call Right with respect to such Management
Stockholder, either in lieu of exercising such Management Securities Call Right or upon or
following such exercise if a Repurchase Disability has occurred and is continuing, (i) to
convert such Management Stockholder’s Company Common Stock to Company Non-Voting Common Stock and
(ii) to purchase each share of Company Special Voting Stock held by such Management
Stockholder from such Management Stockholder for a purchase price equal to par value of such share.
The Company’s rights under this Section 8(e) shall be exercised by written notice to such
Management Stockholder given in accordance with Section 16(f) on or prior to the last day
on which the Management Securities Call right may be exercised by the Company.

          (f) No Stockholder shall have any rights against the Company because of the Company’s election
to waive, in its sole discretion, any of the Company’s rights with respect to the repurchase or
conversion provisions set forth in this Section 8.

          (g) For the avoidance of doubt, the provisions set forth in this Section 8 shall be
applicable, mutatis mutandis, to any Securities held by a Management Stockholder that is a Related
Trust upon the Termination of Service of any Related Individual or upon any Related Individual’s
engagement in a Competitive Activity, as applicable.

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Section 9. Rights to Repurchase Securities held by Other Stockholders

          (a) During the period beginning on the date that the Company becomes aware that an Other
Stockholder has since the date of this Agreement engaged in or is engaging in Direct Competitive
Activity and ending on the date nine (9) months following such date, the Company shall have the
option to repurchase the Securities held by such Other Stockholder and/or his Related Trusts and
Permitted Transferees (collectively, the “Other Stockholder Securities Call Right”). The
Other Stockholder Securities Call Right may be exercised more than once. The Other Stockholder
Securities Call Right shall be exercised by written notice (the “Other Stockholder Securities
Call Notice”) to such Other Stockholder given in accordance with Section 16(f) below on
or prior to the last day on which the Other Stockholder Securities Call Right may be exercised by
the Company. For purposes of this Section 9, “Direct Competitive Activity” means
being employed full-time, being employed part-time under an arrangement that requires 25% of the
Other Stockholder’s professional time in any 12-month period, or providing services as a consultant
or independent contractor under an arrangement that requires more than 25% of the Other
Stockholder’s professional time in any 12-month period, in any such case by or to one of the
foregoing Persons or divisions: (i) Electronic Data Services Corporation, Jacobs
Engineering Group, Science Applications International Corporation, BearingPoint, Inc., Accenture
Ltd., CACI International Inc., ManTech International Corporation, Stanley Associates, Inc., VSE
Corporation, SRA International, Inc., Deloitte Consulting LLP, ARINC Incorporated, Computer
Sciences Corporation, Scitor Corporation, SRI International, Alion Science and Technology, MTC
Technologies Inc., SI International, SPARTA, Inc., or Wyle Laboratories, Inc., or (ii) the
U.S. government services divisions of BAE Systems, The Boeing Company, General Dynamics, Harris
Corp., IBM, L3 Communications, Lockheed Martin, Raytheon or Northrop Grumman; provided,
however, that “Direct Competitive Activity” will not include any activity engaged
in as an employee of or consultant to Booz & Company Inc., a Delaware corporation and a wholly
owned subsidiary of the Company (“Newco”), to the extent Newco was permitted to engage in
such activity under the Spin Off Agreement, dated as of May 15, 2008, by and between the Company
and Newco, Booz & Company Intermediate I Inc., a Delaware corporation and a wholly owned subsidiary
of Newco (“Newco 2”), and Booz & Company Intermediate II Inc., a Delaware corporation and a
wholly owned subsidiary of Newco 2. Notwithstanding the foregoing, the Company does not intend to
exercise its Other Stockholder Securities Call Right with respect to any Security unless the
Security has been held by the Other Stockholder (and/or his or her Related Trusts or Permitted
Transferees) for at least six months.

          (b) The purchase price payable by the Company for the Securities held by such Other
Stockholder upon exercise of the Other Stockholder Securities Call Right (the “Other
Stockholder Securities Purchase Price”) shall equal (i) until the third anniversary of
the date of this Agreement, the lesser of (A) the Fair Market Value of the Securities
subject to the Other Stockholder Securities Call Right on the date of the Other Stockholder
Securities Call Notice and (B) $100 per share and (ii) after the third anniversary
of the date of this Agreement, the Fair Market Value of the Securities subject to the Other
Stockholder Securities Call Right on the date of the Other Stockholder Securities Call Notice.

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          (c) The repurchase of Securities pursuant to the exercise of the Other Stockholder Securities
Call Right shall take place on a date specified by the Company, but in no event later than sixty
(60) days following the date of the exercise of such Other Stockholder Securities Call Right or, if
later, within ten (10) days following the receipt by the Company of all necessary governmental
approvals. On such date, such Other Stockholder shall transfer the Securities subject to the Other
Stockholder Securities Call Notice to the Company, free and clear of all liens and encumbrances, by
delivering to the Company the certificates or other documents representing the Securities to be
purchased, duly endorsed for transfer to the Company or accompanied by a stock power duly executed
in blank, in each case reasonably acceptable to the Company, and the Company shall pay to such
Other Stockholder the Other Stockholder Securities Purchase Price in cash or by bank or cashier’s
check.

          (d) Notwithstanding any other provision of this Section 9, the Company shall not be
permitted or obligated to make any payment with respect to a repurchase of any Securities from an
Other Stockholder if there exists any Repurchase Disability; provided, that the Company shall
provide the Other Stockholder with respect to whom the repurchase right has been exercised with a
Disability Notice specifying the nature of the Repurchase Disability. If a repurchase by the
Company otherwise permitted under this Section 9 is prevented by a Repurchase Disability:
(i) the purchase and payment of the applicable purchase price shall be postponed and will take
place at the first opportunity thereafter when the Company has funds legally available to make such
payment and when such payment will not result in any default, event of default or violation under
any of the Financing Agreements or in a violation of any term or provision of the certificate of
incorporation of the Company, (ii) such repurchase obligation shall rank against other
similar repurchase obligations with respect to Securities according to priority in time of the
termination date giving rise to such repurchase and (iii) the applicable purchase price
shall be increased by an amount equal to interest on such purchase price for the period during
which payment is delayed at either, at the Company’s discretion, as determined on the date the
Company exercises its repurchase right, (i) the applicable federal rate or (ii) the market rate of
interest determined by the Company; provided, however, that if the Company has not
repurchased Securities pursuant to this Section 9 within four years following the delivery
of a Disability Notice, the Company shall thereafter have no right or obligation to repurchase such
Securities.

          (e) No Stockholder shall have any rights against the Company because of the Company’s election
to waive, in its sole discretion, any of the Company’s rights with respect to the repurchase
provisions set forth in this Section 9.

          (f) For the avoidance of doubt, the provision set forth of this Section 9 shall be
applicable, mutatis mutandis, to any Securities held by an Other Stockholder that is a Related
Trust upon the engagement of any Related Individual in Direct Competitive Activity.

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Section 10. [Reserved].

			
	Section 11.	 	Conversion of Company Non Voting Common Stock and Company
Restricted Common Stock; Repurchase of Company Special Voting
Stock.

          In the event of any sale of Securities that, but for Section 5(f) of the Company’s certificate
of incorporation, would be shares of Company Non-Voting Common Stock or Company Restricted Common
Stock, as the case may be, pursuant to (i) the exercise of Bring-Along Rights by the
Carlyle Stockholders pursuant to Section 4 above, (ii) clause (a) of Section
2 above, or (iii) Section 6 above, such shares of Company Non-Voting Stock or
Company Restricted Common Stock, as the case may be, shall, effective upon the consummation of such
sale, be converted into shares of Company Common Stock pursuant to Section 5(f) of the Company’s
certificate of incorporation. In the event that any Management Stockholder (x) sells a
Company Option to a Third Party Purchaser pursuant to this Agreement or (y) Transfers or
has Transferred Company Non-Voting Common Stock to a Permitted Transferee, in each case, without a
Transfer of the related share of Company Special Voting Stock, if any (which related share, in the
case of clause (y), was purchased by such Management Stockholder pursuant to Section 5),
then the Company shall promptly purchase from such Management Stockholder (and, if applicable, any
Permitted Transferee and/or Related Trust of such Management Stockholder), and such Management
Stockholder (and, if applicable, any Permitted Transferee and/or Related Trust of such Management
Stockholder) shall sell to the Company, such share of Company Special Voting Stock, at par value,
in the case of clause (x), promptly following such sale to a Third Party Purchaser and in the case
of clause (y), concurrently with any conversion of such Non-Voting Common Stock to Company Common
Stock.

Section 12. Section 280G Payments

          (a) Except as otherwise provided in Section 12(b) below, in the event that it shall be
determined that any right to receive an award, payment, deemed payment or other benefit or deemed
benefit under any plan, arrangement or agreement (including, without limitation, the acceleration
of the vesting and/or exercisability of an equity or other award and taking into account the effect
of this Section 12) to or for the benefit of a Management Stockholder (the
“Payments”), would, in whole or part when aggregated with any other right, payment or
benefit to or for the Management Stockholder under all other agreements or benefit plans of the
Company, constitute “parachute payments” made in connection with a “change in ownership or control”
of a corporation, within the meaning of Section 280G of the Internal Revenue Code of 1986, as
amended (the “Code”), which could reasonably be expected to result in the imposition of an
excise tax on the Management Stockholder under Section 4999 of the Code or in the loss of any
income tax deductions by the Company or the Person making such Payment under Section 280G of the
Code if the value of any such “parachute payments” constitutes “excess parachute payments,” within
the meaning of Section 280G of the Code, then, to the extent necessary to make the Payments
deductible and not subject to excise taxes to the maximum extent possible (but only to such extent
and after taking into account any reduction in the Payments relating to Section 280G of the Code
under any other plan, arrangement or agreement), the Payments shall not become exercisable, vested
or payable. For purposes of

18

 

determining whether any of the Payments would not be deductible as a result of Section 280G of
the Code or would be subject to an excise tax under Section 4999 of the Code and the amount of such
disallowed deduction or excise tax, all Payments will be treated as “parachute payments” within the
meaning of Section 280G of the Code, and all “parachute payments” in excess of the “base amount”
(as defined under Section 280G(b)(3) of the Code) shall be treated as nondeductible and subject to
the excise tax, unless and except to the extent that in the opinion of a nationally recognized
accounting firm selected by the Company (the “Accountants”), such Payments (in whole or in
part) either do not constitute “parachute payments,” including by reason of Section 280G(b)(4) of
the Code, or are otherwise not subject to disallowance as a deduction or not subject to the excise
tax. All determinations required to be made under this Section 12(a), including whether
and which of the Payments are required to be reduced, the amount of such reduction and the
assumptions to be utilized in arriving at such determinations, shall be made by the Accountants,
provided, however, that such determinations shall be based upon “substantial
authority” within the meaning of Section 6662 of the Code.

          (b) Notwithstanding any other provision of this Agreement, the provisions of Section
12(a) above shall not apply to reduce the Payments if (i) the Payments that would
otherwise be nondeductible under Section 280G of the Code or subject to an excise tax under Section
4999 of the Code are disclosed to and approved by the Stockholders in accordance with Section
280G(b)(5)(B) of the Code and the regulation codified at 26 C.F.R. § 1.280G-1 (the “280G
Regulations”), (ii) immediately before the change in ownership or control the Company
does not meet the requirements of Section 280G(b)(5)(A)(ii)(I) and the 280G Regulations,
(iii) the Company fails to comply with Section 12(c) or (iv) prior to the
earlier of (A) the applicable change in ownership or control and (B) the
stockholder meeting called by the Company pursuant to Section 12(c), the Unaffiliated
Directors, acting at the request of either Executive Director and taking into account all relevant
considerations, including the rights of the Management Stockholders, determines that the provisions
of Section 12(a) shall not apply to such Payments.

          (c) The Company shall use its commercially reasonable best efforts to prepare and deliver to
the Stockholders the disclosure required by Section 280G(b)(5)(B) of the Code with respect to the
Payments and to obtain the approval of the Stockholders in accordance with to Section 12(b)
above prior to the applicable change in ownership or control.

Section 13. Termination.

          Subject to the ability to terminate specific provisions of this Agreement set forth in
Section 16(k), this Agreement, and the respective rights and obligations of the Parties,
shall terminate upon the earliest of (a) the consummation of a Company Sale and (b)
such time as more than 60% of the Securities have been sold to the public pursuant to an effective
registration statement (other than a sale by the Company pursuant to a registration statement on
Form S-8) or in accordance with Rule 144 or another exemption from registration.

Section 14. Certain Definitions.

          (a) As used in this Agreement, the following terms shall have the meanings set forth below.

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          “Administrator” means the Board or any Committee appointed by the Board to administer
the Equity Incentive Plan, as such plan may be modified or supplemented from time to time by the
Board.

          “Affiliate” means, with respect to any Person, any Person directly or indirectly
controlling, controlled by or under common control with such Person. For purposes of this
definition, “control” (and its derivatives) means the possession, directly or indirectly, of the
power to direct or cause the direction of the management and policies of a Person, whether by
contract, through the ownership of voting securities, as trustee or executor, or otherwise.

          “Aggregate Quantity of Securities” means, with reference to Securities owned by any
Person at any time or Securities outstanding at any time for purposes of any computation hereunder,
the number of shares of Company Common Stock, Company Restricted Common Stock and Company
Non-Voting Common Stock issued and outstanding and held by such Person or all Persons, as the case
may be, plus the number of shares of Company Common Stock issuable upon exercise, exchange
or conversion of Company Options held by such Person or all Persons, as the case may be, excluding
any Company Options issued under the Equity Incentive Plan which are not vested at such time.
Further, the phrase “number of Securities” held by any Person or group of Persons or to be
Transferred shall mean the number of shares of Company Common Stock, Company Restricted Common
Stock and Company Non-Voting Common Stock held by such Person or group of Persons or to be
Transferred, plus the number of shares of Company Common Stock issuable upon exercise,
exchange or conversion of Company Options held by such Person or group of Persons (other than
Company Options that have an exercise, exchange or conversion price per share greater than the
price per share to be paid by the applicable Third Party Purchaser(s)).

          “Business Day” means a day except a Saturday, a Sunday or other day on which banks in
the City of New York are authorized or required by federal or state law to be closed.

          “Carlyle Stockholders” means (a) the Initial Carlyle Stockholder and
(b) any Affiliates of the Initial Carlyle Stockholder to which (i) the Initial
Carlyle Stockholder or any other Person transfers Company Common Stock or (ii) the Company
issues Company Common Stock.

          “Cause” has the meaning specified in the Equity Incentive Plan.

          “Company Approved Termination” means a termination of employment that the Company
(through the members of its senior management), in its sole discretion, determines to be in the
best interest of the Company and the Company’s approval of such termination as a Company Approved
Termination is approved or ratified by the Board of Directors.

          “Company Common Stock” means shares of the Company’s Class A Common Stock, par value
$0.01 per share.

          “Company Non-Voting Common Stock” means shares of the Company’s Class B Non-Voting
Common Stock, par value $0.01 per share.

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          “Company Options” means options, issued in an Exchange or as Merger Consideration
pursuant to the Merger Agreement, or any options issued thereafter, to purchase shares of Company
Common Stock pursuant to an option agreement and the Company Rollover Stock Plan, the Equity
Incentive Plan or any similar equity-based plans approved by the Board.

          “Company Restricted Common Stock” means shares of the Company’s Class C Restricted
Common Stock, par value $0.01 per share.

          “Company Rollover Stock Plan” means the Officer’s Rollover Stock Plan of the Company,
as such plan may be modified or supplemented from time to time by the Board.

          “Company Sale” means the consummation of any transaction or series of transactions
(including, without limitation, any merger, recapitalization, reorganization, sale of stock or
other similar transaction) pursuant to which one or more Persons or group of Persons (other than
any Carlyle Stockholder) acquires (a) Securities possessing the voting power (without
taking into account this Agreement or any other agreement or proxy limiting the voting power of the
holder of such Securities) sufficient to elect a majority of the members of the Board or the board
of directors of the successor to the Company (whether such transaction is effected by merger,
consolidation, recapitalization, sale or transfer of the Company’s capital stock or otherwise) or
(b) all or substantially all of the assets of the Company and its subsidiaries.

          “Company Special Voting Stock” means shares of the Company’s Class E Special Voting
Stock, par value $0.03 per share.

          “Competitive Activity” means directly or indirectly, engaging in or providing, or
owning, investing in, managing, joining, operating or controlling, or participating in the
ownership, management, operation or control of or being connected as a director, officer, employee,
partner, member, consultant, or otherwise with, any business enterprise (whether for profit or not
for profit) which is engaged in the business of providing consulting services, either management or
technical, staff augmentation, or any related services which the Company or any of its divisions or
subsidiaries provides for any U.S. Governmental Entity or any other business activities that, as of
the date of the officer’s termination of employment, are directly competitive, in any geographic
area in which the Company or any of its divisions or subsidiaries engages in business activities,
with the business activities of the Company or any of its divisions, subsidiaries or affiliates
(including any material business activities that, to the knowledge of the officer, the Company or
any of its respective divisions, subsidiaries or affiliates were planning to engage in prior to the
officer’s termination of employment as evidenced by reasonably documented plans and actions and
that, to the officer’s knowledge, were still being actively pursued by the Company as of the date
of such termination), in each case that is not approved in writing by the Administrator;
provided, however, that (i) direct employment as an employee of (and not as
a consultant or advisor to) any U.S. federal, state or local Governmental Entity shall not be
considered a Competitive Activity; (ii) the officer’s acquisition of a passive stock or
equity interest in such a business, which represents not more than five percent (5%) of the
outstanding interest in such business shall not be considered a Competitive Activity; and
(iii) employment by a competitor shall not be considered a Competitive Activity if (and
only if) (A)

21

 

the competitor has more than one discrete business unit and, at the time of the officer’s
employment with the competitor, the businesses of the competitor that do not compete with the
Company and its Subsidiaries are responsible for 75% or more of the revenue of such competitor;
(B) the officer’s duties relate solely to one or more business units that do not compete
directly or indirectly with the Company or any of its Subsidiaries; (C) the officer is not
providing any services or charged with any duties (including reporting duties) with respect to the
business unit that is in competition with the Company or any of its Subsidiaries; and (D)
if requested by the Company, the officer certifies in writing to the Company within thirty (30)
days of receipt of such request that the position satisfies the requirements of this proviso. In
the event any court of competent jurisdiction shall find that any provision hereof relating to
Competitive Activity is not enforceable in accordance with its terms, the court shall reform such
provisions such that the provisions shall be enforceable to the maximum extent permissible by law.

          “Disability” has the meaning specified in the Equity Incentive Plan.

          “Equity Incentive Plan” means the Equity Incentive Plan of the Company, as adopted on
or prior to the date hereof, as such plan may be modified or supplemented from time to time by the
Board.

          “Exchange Act” means the Securities and Exchange Act of 1934, as amended.

          “Fair Market Value” means, as of any date of determination, the fair market value of
any given asset, including, without limitation, the applicable Securities, as determined by the
Board in good faith with reference to the most recent valuation of the Company Common Stock
performed by an independent valuation consultant or appraiser of nationally recognized standing
(which valuation shall be prepared not less frequently than annually), provided, that the
Fair Market Value of any vested Company Option shall be equal to the Fair Market Value of a share
of Company Common Stock, minus the exercise price of such Company Option and provided,
further, that the Fair Market Value of each share of Company Special Voting Stock shall be
its par value at all times.

          “Individual Stockholder” means any Person that is a Party to this Agreement other than
the Carlyle Stockholders.

          “Leadership Team” means the group of senior executives of the Company with
policy-making functions, as designated by the Chief Executive Officer.

          “Management Stockholder” means any Person identified as a “Management Stockholder” on
the signature pages to this Agreement or the Original Agreement.

          “Other Stockholder” means any Person identified as an “Other Stockholder” on the
signature pages to this Agreement or the Original Agreement.

          “Party” means any of the parties to this Agreement.

22

 

          “Person” means any individual, corporation, partnership, limited partnership, limited
liability company, syndicate, trust, association or other entity.

          “Proxy and Tag-Along Agreements” has the meaning set forth in the Recitals.

          “Registrable Securities” means (a) (i) shares of Company Common Stock
held by a Stockholder, (ii) shares of Company Common Stock issuable upon exercise of any
vested Company Options and (iii) shares of Company Common Stock issuable upon exchange of
shares of Company Non-Voting Common Stock or Company Restricted Common Stock; and (b) any
securities issued or issuable with respect to any of the foregoing (x) upon any conversion
or exchange thereof, (y) by way of stock dividend or other distribution, stock split or
reverse stock split or (z) in connection with a combination of shares, recapitalization,
merger, consolidation, exchange offer or other reorganization. As to any particular Registrable
Securities, once issued such securities shall cease to be Registrable Securities when (A) a
registration statement with respect to the sale of such securities shall have become effective
under the Securities Act and such securities shall have been disposed of in accordance with such
registration statement, unless such securities are acquired and held by a Stockholder who is an
affiliate (within the meaning of Rule 144) of the Company, (B) such securities shall have
been distributed to the public in reliance upon Rule 144, (C) such securities shall have
been otherwise transferred, new certificates for such securities not bearing a legend restricting
further transfer shall have been delivered by the Company and subsequent disposition of such
securities shall not require registration or qualification of such securities under the Securities
Act, (D) such securities shall have been acquired by the Company, or (E) with
respect to any such securities acquired by a Stockholder pursuant to the exemption from the
registration requirements of the Securities Act contained in Rule 701 (or any successor provision)
thereunder, at any time after the period described in Section 2(a), such securities have
not at any time during the last six months been subject to any holdback obligation or other
transfer restriction under Section 2 or Section 6.

          “Related Individual” means, for any entity or trust, the natural person who initially
transferred, assigned or otherwise granted to such entity or trust (i) Securities of the Company or
(ii) securities of Booz Allen Hamilton, Inc. that were exchanged for Securities of the Company.

          “Related Trust” means, for any natural person, any trusts or entities to which such
natural person transferred, assigned or otherwise granted (i) Securities of the Company or (ii)
securities of Booz Allen Hamilton, Inc. that were exchanged for Securities of the Company.

          “Rollover Options” means options, issued in an Exchange or as Merger Consideration
pursuant to the Merger Agreement, to purchase shares of Company Common Stock pursuant to an option
agreement and the Company Rollover Stock Plan.

          “Rule 144” means Rule 144 (or any successor provision) under the Securities Act.

          “Same Terms and Conditions” means the same price and otherwise on the same terms and
conditions; provided, however, that (a) any price paid for options will be
subject to reduction for the applicable exercise price, (b) the form of consideration paid
may be different so

23

 

long as (i) the different forms of consideration have the same Fair Market Value as of
the date of approval by the Board of the applicable definitive agreement and (ii) no
Carlyle Stockholder receives any form of consideration (including with respect to vesting and
exercise provisions and similar restrictions) that the Individual Stockholders are not entitled to
receive in the same proportion, (c) the Carlyle Stockholders may receive, even if not
offered to the Individual Stockholders, rights to appoint members of the board of directors or
similar governing body of the Third Party Purchaser or any of its Affiliates, or any other
governance rights (including board observer rights), and (d) the Carlyle Stockholders may
receive, even if not offered to Individual Stockholders, rights to Transfer any Securities received
in such transaction not given to Individual Stockholders so long as the Individual Stockholders are
permitted to Transfer their Securities on a pro rata basis with the Carlyle Stockholders.

          “Securities” means (a) (i) shares of Company Common Stock,
(ii) shares of Company Restricted Common Stock, (iii) shares of Company Non-Voting
Common Stock, (iv) shares of Company Special Voting Stock and (v) Company Options;
and (b) any securities issued or issuable with respect to any of the foregoing (x)
upon any conversion or exchange thereof, (y) by way of stock dividend or other
distribution, stock split or reverse stock split or (z) in connection with a combination of
shares, recapitalization, merger, consolidation, exchange offer or other reorganization.

          “Senior Officers” means the Chief Executive Officer, the Chief Financial Officer or
the General Counsel of the Company.

          “Service Provider” has the meaning specified in the Equity Incentive Plan.

          “Share” means a share of Company Common Stock, Company Non-Voting Common Stock or
Company Restricted Common Stock.

          “Special Registration” means the registration of Securities and/or options or other
rights in respect thereof solely on Form S-4 or S-8 or any successor form.

          “Stockholders” means the Carlyle Stockholders and the Individual Stockholders.

          “Termination of Service” means the time when a Management Stockholder ceases to be a
Service Provider for any reason, whether for cause or without cause, including, but not by way of
limitation, a termination by resignation, discharge, death or retirement, but excluding a
termination where there is a simultaneous reemployment or reengagement by the Company or one of its
subsidiaries.

          “Transfer” means any direct or indirect sale, transfer, assignment, conveyance,
pledge, by operation of law or otherwise, or other encumbrance or disposition, but does not include
the sale of any shares of Company Special Voting Stock of the Company in accordance with the
Company Rollover Stock Plan.

          “Voting Shares” means shares of Company Common Stock, Company Restricted Common Stock
and Company Special Voting Stock.

24

 

          (b) The following terms have the meaning set forth in the Sections set forth below:

	 	 	 
	Defined Term	 	Location of Definition
	Accountants

	 	Section 12(a)
	Agreement

	 	Preamble
	BAH

	 	Recitals
	Board

	 	Section 1(a)
	Bring-Along Notice

	 	Section 4(b)
	Bring-Along Right

	 	Section 4(a)
	Buyer

	 	Recitals
	Code

	 	Section 12(a)
	Company

	 	Preamble
	Demand Registration

	 	Section 6(a)
	Directors

	 	Section 1(a)
	Direct Competitive Activity

	 	Section 9(a)
	Disability Notice

	 	Section 8(d)
	Down-Round Preemptive Right

	 	Section 10(a)
	Equity Securities

	 	Section 10(b)
	Executive Directors

	 	Section 1(a)
	Executive Stockholder

	 	Section 3(a)
	Financing Agreements

	 	Section 8(d)
	Foreclosed Securities

	 	Section 2
	Foreclosure Transferee

	 	Section 2
	Initial Carlyle Stockholder

	 	Preamble
	IPO

	 	Recitals
	Lender

	 	Section 2
	Management Securities Call Notice

	 	Section 8(a)
	Management Securities Call Right

	 	Section 8(a)
	Management Securities Purchase Price

	 	Section 8(b)
	Merger

	 	Preamble
	Merger Agreement

	 	Preamble
	Merger Sub

	 	Recitals
	Newco

	 	Section 9(a)
	Newco 2

	 	Section 9(a)
	Individual Stockholders

	 	Preamble
	Other Stockholder Securities Call Notice

	 	Section 9(a)
	Other Stockholder Securities Call Right

	 	Section 9(a)
	Other Stockholder Securities Purchase Price

	 	Section 9(b)
	Payments

	 	Section 12(a)
	Permitted Transfer

	 	Section 5(a)
	Permitted Transferee

	 	Section 5(a)
	Piggyback Registration

	 	Section 6(b)
	Registration Request

	 	Section 6(a)

25

 

	 	 	 
	Defined Term	 	Location of Definition
	Repurchase Date

	 	Section 8(b)
	Repurchase Disability

	 	Section 8(d)
	Securities Act

	 	Section 2
	Third Party Purchaser

	 	Section 4(a)
	Third Party Terms

	 	Section 4(b)
	Unaffiliated Directors

	 	Section 1(a)
	280G Regulations

	 	Section 12(b)

          (c) Terms used but not defined herein have the meanings ascribed to them in the Merger
Agreement.

Section 15. Effectiveness.

          (a) This Agreement shall become effective upon the effectiveness of the registration statement
relating to the IPO and shall be null and void with no force and effect if the IPO is not
consummated within 60 days thereafter.

Section 16. Miscellaneous.

          (a) Legends. Each certificate representing the securities issued by the Company and
held by a Stockholder shall bear the following legends; provided, that the legend set forth
below will be removed promptly from the certificates evidencing any securities which cease to be
Registrable Securities in accordance with the definition of such term herein, or would cease to be
Registrable Securities upon deliver of unlegended certificates by the Company:

“THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (“ACT”), OR
THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE SOLD OR TRANSFERRED
IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT UNDER THE ACT
AND SAID LAWS OR AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS
THEREOF.”

“THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO THE REPURCHASE
RIGHTS, ADDITIONAL RESTRICTIONS ON TRANSFER AND CERTAIN OTHER
AGREEMENTS SET FORTH IN THE BOOZ ALLEN HAMILTON HOLDING CORPORATION
OFFICERS’ ROLLOVER STOCK PLAN AND AN AMENDED AND RESTATED
STOCKHOLDERS AGREEMENT BETWEEN THE ISSUER AND THE STOCKHOLDERS AND
OPTIONHOLDERS OF THE ISSUER, DATED AS OF [•], 2010. A COPY OF SUCH
PLAN AND AGREEMENT SHALL BE FURNISHED WITHOUT CHARGE BY THE ISSUER
TO THE HOLDER HEREOF UPON WRITTEN REQUEST.”

26

 

          (b) Successors, Assigns and Transferees. This Agreement shall be binding upon and
inure to the benefit of the Parties and their respective legal representatives, heirs, legatees,
successors, and assigns and any other transferee and shall also apply to any securities acquired by
a Stockholder after the date hereof.

          (c) Governing Law. This Agreement shall be governed by, and construed in accordance
with, the laws of the State of Delaware, without giving effect to its principles or rules of
conflict of laws to the extent such principles or rules are not mandatorily applicable by statute
and would require or permit the application of the laws of another jurisdiction.

          (d) Specific Performance; Submission to Jurisdiction. The Parties agree that
irreparable damage would occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached. It is accordingly
agreed that the Parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions of this Agreement in federal
and state courts located in Wilmington, Delaware, this being in addition to any other remedy to
which such party is entitled at law or in equity. In addition, each of the Parties hereto
(i) consents to submit itself to the personal jurisdiction of the federal and state courts
located in Wilmington, Delaware in the event any dispute arises out of this Agreement or any of the
transactions contemplated by this Agreement; (ii) agrees that it will not attempt to deny
or defeat such personal jurisdiction by motion or other request for leave from such court,
(iii) agrees that it will not bring any action relating to this Agreement or any of the
transactions contemplated by this Agreement in any court other than the federal or state courts
located in Wilmington, Delaware, and (iv) to the fullest extent permitted by Law, consents
to service being made through the notice procedures set forth in Section 16(f). Each party
hereto hereby agrees that, to the fullest extent permitted by Law, service of any process, summons,
notice or document by U.S. registered mail to the respective addresses set forth in Section
16(f) shall be effective service of process for any suit or proceeding in connection with this
Agreement or the transactions contemplated hereby.

          (e) Interpretation. The headings of the Sections contained in this Agreement are
solely for the purpose of reference, are not part of the agreement of the Parties and shall not
affect the meaning or interpretation of this Agreement. The words “this Agreement”,
“herein”, “hereunder”, “hereof”, “hereby”, or other words of
similar import refer to this Agreement as a whole and not to any particular Article, Section or
other subdivision hereof. Unless the context requires otherwise, pronouns in the masculine,
feminine and neuter genders shall be construed to include any other gender, and words in the
singular form shall be construed to include the plural and vice versa.

          (f) Notices. All notices and other communications provided for or permitted hereunder
shall be in writing and shall be deemed to have been duly given and received when delivered by
overnight courier or hand delivery, when sent by telecopy, or five (5) days after mailing if sent
by registered or certified mail (return receipt requested) postage prepaid, to the Parties at the
following addresses (or at such other address for any Party as shall be specified by like notices).

27

 

	 	(i)	 	If to any Carlyle Stockholder, addressed to such Carlyle
Stockholder, c/o The Carlyle Group, at:

1001 Pennsylvania Avenue, N.W.

Washington, DC 20004

Attention: Ian Fujiyama

Facsimile: (202) 347-9250

With a copy to:

Debevoise & Plimpton LLP

919 Third Avenue

New York, NY 10022

Attention: Jeffrey J. Rosen

Facsimile: (212) 909-6836

And a copy to:

Booz Allen Hamilton Inc.

8283 Greensboro Drive

McLean, Virginia 22012

Attention: Law Department

Facsimile: (703) 902-3580

	 	(ii)	 	If to any Individual Stockholder, to the address set forth on
such Stockholder’s signature page hereto.

With a copy to:

Booz Allen Hamilton Inc.

8283 Greensboro Drive

McLean, Virginia 22012

Attention: Law Department

Facsimile: (703) 902-3580

	 	(iii)	 	If to the Company:

Booz Allen Hamilton Inc.

8283 Greensboro Drive

McLean, Virginia 22012

Attention: Law Department

Facsimile: (703) 902-3580

28

 

With a copy to:

Debevoise & Plimpton LLP

919 Third Avenue

New York, NY 10022

Attention: Jeffrey J. Rosen

Facsimile: (212) 909-6836

And a copy to:

c/o The Carlyle Group

1001 Pennsylvania Avenue, N.W.

Washington, DC 20004

Attention: Ian Fujiyama

Facsimile: (202) 347-9250

          (g) Recapitalization, Exchange, Etc. Affecting the Company’s Capital Stock. The
provisions of this Agreement shall apply, to the full extent set forth herein, with respect to any
and all Securities and all of the shares of capital stock of the Company or any successor or assign
of the Company (whether by merger, consolidation, sale of assets, or otherwise) that may be issued
in respect of, in exchange for, or in substitution of such Securities, and shall be appropriately
adjusted for any stock dividends, splits, reverse splits, combinations, recapitalizations, and the
like occurring after the date hereof.

          (h) Counterparts. This Agreement may be executed in two or more counterparts, each of
which shall be deemed to be an original and all of which together shall be deemed to constitute one
and the same agreement. Any facsimile copies hereof or signature thereon shall, for all purposes,
be deemed originals.

          (i) Attorney’s Fees. In any action or proceeding brought to enforce any provision of
this Agreement, the successful Party shall be entitled to recover reasonable attorney’s fees and
expenses in addition to any other available remedy.

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

          (k) Amendment. The provisions of each Section of this Agreement (including any
defined terms to the extent such defined terms are used in any Section) may be amended or
terminated and the observance thereof may be waived (either generally or in a particular instance
and either retroactively or prospectively) only as follows:

          (i) with respect to any amendments, terminations or waivers relating to the provisions
of Section 1, Section 3,
Section 4, or
Section 16(m), by the
written

29

 

consent of the Company (approved by the Board), the Carlyle Stockholders and the
Executive Stockholders holding a majority of the Securities held by the Executive
Stockholders;

          (ii) with respect to any waivers of the provisions of Section 2 or Section
5 or any amendments or terminations thereof of generally applicability, by the written
consent of the Company (approved by the Board); provided that any such amendment or
termination of such Sections that would have the effect of imposing additional restrictions
on the ability of the Individual Stockholders to Transfer Securities thereunder shall
require the written consent of the Individual Stockholders holding a majority of the
Securities held by the Individual Stockholders;

          (iii) with respect to any amendments, terminations or waivers relating to the
provisions of Section 8, by the written consent of the Company (approved by the
Board), the Carlyle Stockholders and the Management Stockholders holding a majority of the
Securities held by the Management Stockholders;

          (iv) with respect to any amendments, terminations or waivers relating to the provisions
of Section 9, by the written consent of the Company (approved by the Board), the
Carlyle Stockholders and the Other Stockholders holding a majority of the Securities held by
the Other Stockholders;

          (v) with respect to any amendments, terminations or waivers relating to the provisions
of Section 11, by the written consent of the Company (approved by the Board); and

          (vi) with respect to any amendments, terminations or waivers relating to the provisions
of Section 6, Section 7, Section 10, Section 12, Section
13, Section 14 (except as otherwise provided herein), Section 15 or
Section 16 (other than subsection (m)), by the written consent of the Company
(approved by the Board) and the Carlyle Stockholders; provided that if such
amendment, termination or waiver by its terms would materially and adversely affect the
rights or obligations of the Individual Stockholders as compared to the Carlyle
Stockholders, then such amendment, termination or waiver shall require the consent of the
Individual Stockholders holding a majority of the Securities held by Individual
Stockholders.

In addition to the foregoing, (x) if any such amendment, termination or waiver would by its
terms materially and adversely affect the rights or obligations of a particular Stockholder in a
manner materially different from or disproportionate to other similarly situated Stockholders, then
such amendment, termination or waiver shall require such Stockholder’s prior written consent and
(y) if any such amendment, termination or waiver would materially and adversely affect the
rights or obligations of the Individual Stockholders and either (I) would in doing so
adversely affect the Other Stockholders in a manner materially different from or disproportionate
to, the Management Stockholders, or (II) is being made in connection with, or pursuant to a
transaction associated with, the payment or grant to the Management Stockholders of a material
amount of new or additional cash, property or other valuable rights (other than reasonable

30

 

compensation arrangements for officers entered into in connection with any public offering) which
are not being paid or granted to the Other Stockholders, then such amendment, termination or waiver
shall require the prior written consent of Other Stockholders holding a majority of the Securities
held by Other Stockholders. Any amendment, termination or waiver effected in accordance with this
Section 16(k) shall be binding upon the Company, the Carlyle Stockholders and their
successors and assigns and the Individual Stockholders and their successors and assigns. At any
time hereafter, additional Stockholders may be made Parties hereto by (x) executing a
signature page in the form attached as Exhibit A hereto, which signature page shall be
countersigned by the Company and shall be attached to this Agreement and become a part hereof
without any further action of any other Party hereto and (y) if such Stockholder is a
resident of a state with a community or marital property system, by causing the spouse of such
Stockholder to execute a spousal waiver in the form attached as Exhibit B.

          (l) Tax Withholding. The Company shall be entitled to require payment in cash or
deduction from other compensation payable to any Stockholder of any sums required by federal,
state, or local tax law to be withheld with respect to the issuance, vesting, exercise, repurchase,
or cancellation of any Share or any option to purchase Securities.

          (m) Appointment of Proxy. Each Executive Stockholder hereby appoints Explorer
Coinvest LLC as his true and lawful proxy and attorney-in-fact, with full power of substitution, to
vote all of such Executive Stockholder’s Voting Shares (i) for the election and removal of
Directors and for all other matters provided for in Section 1 (other than Sections
1(f) and 1(g)) and (ii) for all matters set forth in Section 4(e);
provided that such proxy shall not include the power to vote in any meeting or other
process chosen by the Executive Stockholders to select designees as contemplated by Section
1(a). The proxies and powers granted pursuant to this Section 16(m) are coupled with
an interest and are given to secure the performance of this Agreement. Such proxies and powers are
irrevocable and binding upon the Executive Stockholders and the successors, assigns,
representatives and executors thereof until the termination of this Agreement and shall revoke any
and all prior proxies granted by the Executive Stockholder with respect to such Executive
Stockholder’s Voting Shares (other than any prior proxies granted to Explorer Coinvest LLC pursuant
to a Proxy and Tag-Along Agreement).

          (n) Entire Agreement. This Agreement (including any and all exhibits, schedules and
other instruments contemplated thereby) constitute the entire agreement of the Parties with respect
to the subject matter hereof.

[remainder of page intentionally left blank.]

31

 

          IN WITNESS WHEREOF, the Parties have executed this Agreement on the date first written above.

	 	 	 	 	 
	 	BOOZ ALLEN HAMILTON HOLDING CORPORATION

 	 
	 	By:  	/s/ CG Appleby
 	 
	 	 	Name:  	CG Appleby 	 
	 	 	Title:  	General Counsel and Secretary 	 
	 

[Signature Page to Stockholders Agreement]

 

 

	 	 	 	 	 	 	 

	EXPLORER COINVEST LLC	 	 
	 
	 	 	 	 	 	 
	By:	 	Carlyle Partners V US, L.P., its managing member	 	 
	 
	 	 	 	 	 	 
	By:	 	TC Group V US, L.P., its general partner	 	 
	 
	 	 	 	 	 	 
	By:	 	TC Group V US, L.L.C., its general partner	 	 
	 
	 	 	 	 	 	 
	By:	 	TC Group Investment Holdings, L.P., its managing member	 	 
	 
	 	 	 	 	 	 
	By:	 	TCG Holdings II, L.P., its general partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Ian Fujiyama	 	 
	 

	 	 	 	 	 	 
	 

	 	 	 	Name: Ian Fujiyama	 	 
	 

	 	 	 	Title: Managing Director	 	 

[Signature Page to Stockholders Agreement]

 

 

EXHIBIT A-1

SIGNATURE PAGE

TO

STOCKHOLDERS AGREEMENT

     By execution of this signature page, ____________________ hereby agrees to become a Party to,
to become a Management Stockholder under, and to be bound by the obligations of, and receive the
benefits of, that certain Stockholders Agreement, dated as of ______________, by and among Booz
Allen Hamilton Holding Corporation, a Delaware corporation, Explorer Coinvest LLC, a Delaware
limited liability company and certain other Parties named therein, as amended from time to time
thereafter.

	 	 	 	 	 

	Signature:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Address:

	 	 
	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 
	 	 	 	 
	 	 	 

	 	 	 	 	 

	Facsimile:

	 	 
	 	 
	 

	 	 	 	 

[Signature Page to Stockholders Agreement]

 

 

EXHIBIT A-2

SIGNATURE PAGE

TO

STOCKHOLDERS AGREEMENT

          By execution of this signature page, ____________________ hereby agrees to become a Party to,
to become an Other Stockholder under, and to be bound by the obligations of, and receive the
benefits of, that certain Stockholders Agreement, dated as of ______________, by and among Booz
Allen Hamilton Holding Corporation, a Delaware corporation, Explorer Coinvest LLC, a Delaware
limited liability company and certain other Parties named therein, as amended from time to time
thereafter.

	 	 	 	 	 

	Signature:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Address:

	 	 
	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 
	 	 	 	 
	 	 	 

	 	 	 	 	 

	Facsimile:

	 	 
	 	 
	 

	 	 	 	 

[Separation Agreement]

 

 

EXHIBIT A-3

SIGNATURE PAGE

TO

STOCKHOLDERS AGREEMENT

          By execution of this signature page, ____________________ hereby agrees to become a Party to,
to become an Executive Stockholder under, and to be bound by the obligations of, and receive the
benefits of, that certain Stockholders Agreement, dated as of ______________, by and among Booz
Allen Hamilton Holding Corporation, a Delaware corporation, Explorer Coinvest LLC, a Delaware
limited liability company and certain other Parties named therein, as amended from time to time
thereafter.

	 	 	 	 	 

	Signature:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Address:

	 	 
	 	 
	 

	 	 	 	 
	 
	 	 	 	 
	 	 	 
	 
	 	 	 	 
	 	 	 

	 	 	 	 	 

	Facsimile:

	 	 
	 	 
	 

	 	 	 	 

[Separation Agreement]

 

 

EXHIBIT A-4

SIGNATURE PAGE

TO

STOCKHOLDERS AGREEMENT — TRUST

          By execution of this signature page, ____________________ hereby agrees to become a Party to,
to become a Management Stockholder under, and to be bound by the obligations of, and receive the
benefits of, that certain Stockholders Agreement, dated as of ______________, by and among Booz
Allen Hamilton Holding Corporation, a Delaware corporation, Explorer Coinvest LLC, a Delaware
limited liability company and certain other Parties named therein, as amended from time to time
thereafter.

	 	 	 	 	 

	Signature of Trustee:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Name of Trustee:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Address of Trust:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	 	 	 
	 
	 	 	 	 
	 	 	 
	 
	 	 	 	 
	Facsimile:

	 	 
	 	 
	 

	 	 	 	 

Accepted and Agreed by:

	 	 	 

	Signature of

Related Individual:

	 	 
	 

	 	 

	 	 	 

	Name:

	 	 
	 

	 	 

[Signature Page to Stockholders Agreement]

 

 

EXHIBIT A-5

SIGNATURE PAGE

TO

STOCKHOLDERS AGREEMENT — TRUST

          By execution of this signature page, ____________________ hereby agrees to become a Party to,
to become an Other Stockholder under, and to be bound by the obligations of, and receive the
benefits of, that certain Stockholders Agreement, dated as of ______________, by and among Booz
Allen Hamilton Holding Corporation, a Delaware corporation, Explorer Coinvest LLC, a Delaware
limited liability company and certain other Parties named therein, as amended from time to time
thereafter.

	 	 	 	 	 

	Signature of Trustee:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Name of Trustee:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	Address of Trust:

	 	 
	 	 
	 

	 	 	 	 

	 	 	 	 	 

	 	 	 
	 
	 	 	 	 
	 	 	 
	 
	 	 	 	 
	Facsimile:

	 	 
	 	 
	 

	 	 	 	 

Accepted and Agreed by:

	 	 	 

	Signature of

Related Individual:

	 	 
	 

	 	 

	 	 	 

	Name:

	 	 
	 

	 	 

[Signature Page to Stockholders Agreement]

 

 

EXHIBIT B

SPOUSAL WAIVER

          I, [INSERT NAME] hereby waive and release any and all equitable or legal claims and rights,
actual, inchoate or contingent, which I may acquire with respect to the disposition, voting or
control of the Securities subject to the Stockholders Agreement, dated as of ______________,
______, among Booz Allen Hamilton Holding Corporation and its stockholders, as the same shall be
amended from time to time, except for rights in respect of the proceeds of any disposition of such
Securities.

	 	 	 

	 
	 	 
	Name:

	 	 

[Signature Page to Stockholders Agreement]

 

 

EXHIBIT C

SEPARATION OF EXECUTIVE STOCKHOLDER

Dated: ____________

          Booz Allen Hamilton Holding Corporation, a Delaware corporation (the “Company”) and
the undersigned individual hereby agree that, as of the date written above, the undersigned has
ceased to serve as a member of the Leadership Team, as defined in the Stockholders Agreement, dated
as of ______________, by and among the Company, Explorer Coinvest LLC, a Delaware limited liability
company and certain other Parties named therein, as amended from time to time thereafter (the
“Stockholders Agreement”). The undersigned individual hereby agrees to remain a Party to,
to remain a Management Stockholder under, and to be continue to bound by the obligations of, and to
receive the benefits of, the Stockholders Agreement.

	 	 	 	 	 

	 	 	 
	Name:	 	 
	 
	 	 	 	 
	BOOZ ALLEN HAMILTON HOLDING CORPORATION	 	 
	 
	 	 	 	 
	By:
	 	 	 	 
	 

	 	 	 	 
	 

	 	Name:	 	 
	 

	 	Title	 	 

 

 

The Stockholders Agreement of Explorer Holding Corporation, dated as of July 30, 2008 (the
“Agreement”) was amended and restated in accordance with the amendment provisions of Section 15(k)
of the Agreement. The following Individual Stockholders (as defined in the Agreement) were parties
to the Agreement and continue to be parties to the Amended and Restated Stockholders Agreement of
Booz Hamilton Holding Corporation, dated as of November 8, 2010:

Abram Zwany Trust

Adolph, Gerald

Ahlquist, Gary

Aldrich, David

Allen, James

Anderson, Kristine

Andrew S. Cohen Trust

Appleby, CG

Arthur L. Fritzson Trust

Bastedo, William

Baxter, Greg

Bertone, Peter

Blackburn, Fred

Bolduc, Mickie

Bounds, Gene

Breeze, Cathy

Broyles, Cynthia

Bussmann, Johannes

Carl Richard Salzano Trust

Carlos A. Navarro Trust

Carol A. Staubach Trust

Carter, Douglas

Castro, Rene

Catanzano, Keith

Catherine Annette Nelson Revocable Trust

Charles P. Zuhoski Revocable Trust

Christopher C. J. Ling Trust

Clyde, Andrew

Cohen, Andrew

Cook, Kevin

Crabtree, Thom

Cubbage, Gary

Cynthia L. Broyles Trust

Dahut, Karen

Darby, Maria

David F. Humenansky Revocable Trust

De Souza, Ivan

Dehoff, Kevin

Dempsey, Joan

DiFonzo, Leslie

Dodd, Jay

Dolan, Jeane

Doolittle, Paul

Doshi, Viren

Dotson, Judith

Doughty, Dennis

Douglas E. Himberger Trust

Douglas Wellington Carter Living Trust

Dov Solomon Zakheim Revocable Trust

Eikelmann, Stefan

Emile P. Trombetti Trust

Falkenstrom, Lee

Farber, Michael

Feeney, John

Feringa, Alexis

Finn, Molly

Fitzpatrick, Margo

Fletcher, Louise

Floyd, Peter

Fongern, Christian

Francis J. Henry, Jr. Trust

Frederick W. Knops III A&R Revocable
     
 Trust dated November 4, 2005

Fritzson, Arthur

Fuhrman, Thomas

Funk, Nicole

Furtado, Bob

Gallo, Laurene

Garner, Joseph

Gary C. Cubbage Trust

Gary D. Labovich Revocable Trust

Gemes, Alan

George M. Schu Trust

Gerald Adolph GRAT 2008

Gerencser, Mark

Ghassan S. Salameh Trust

Gibbons, Jim

Gibson, Dennis

Gilbert, Lesley

Gillespie, Neil

Givans, Natalie

Goforth, Patricia

Greenspon, Thomas

Gregory G. Wenzel Trust

Gushurst, Klaus-Peter

Hall, Keith

Hardwick, Nancy

Harrison, Gregory

Helfenstein, Dee Dee

Henry, Jimmy

Herbert Stuart MacArthur Trust

Herman, Mark

Himberger, Douglas

Himler, Mark

Hirsh, Evan

Hodge, Ronald

Holder, Gordon

Holley, Rick

Howell, Lloyd

Humenansky, David

Hyde, Joan

Inserra, Andrea

Jack D. Welsh Jr., Trust

Jackson, William

 

 

Jacobsohn, Jake

James Manchisi Revocable Trust

Jaruzelski, Barratt

Jirovec, Todd

Joan A. Dempsey Trust

John A. Thomas Trust

John D. Lueders Revocable Trust

Jones, Michael

Joseph W. Mahaffee Revocable Trust

Judith H. Dotson Trust

Kadish, Ronald

Karen M. Dahut Trust

Karp, David

Kauffeld, Richard

Keith R. Hall Trust dated 

     
25 November 2002

Kelly, Christopher

Kenneth F. Wiegand, Jr. Trust

Kibben, Jeffrey

Kletter, David

Knops, Frederick

Kosar, Corrine

Krings, Jorg

Kuenstner, Thomas

Kurt B. Stevens Trust

Kuttner, Nicholas

Labovich, Gary

Lamb, Robert

Lance, Gary

Lane, Douglas

Laurene A. Gallo Trust

Lauster Trust f/b/o E Lauster, f/b/o H      Lauster, f/b/o M Lauster

Lauster, Steffen

Lee J. Falkenstrom Revocable Trust

Legan, Brian

Leinwand, Paul

Lerch, Marie

Ling, Christopher

Lloyd W. Howell, Jr. Trust

Logue, Joseph

Los Altos Investments

Lueders, John

Lyman, Janet

MacArthur, Herbert

Mader, David

Mahaffee, Joseph

Makar, Robert

Manchisi, James

Margo L. Fitzpatrick Trust

Maria Darby Trust

Mark J. Gerencser Trust

Mark L. Herman Revocable Trust

Martha, Joseph

Mather, Gary

Mayer, John

McConnell, Mike

McFarland, Walt

Merkel, Judy

Messer, Angela

Meyers, Bill

Mills, Ken

Mitchell, Anthony

Moeller, Leslie

Molly Finn Revocable Inter-Vivos Trust

Muzik, Sharon

Nancy E. Hardwick Trust

Natalie M. Givans Revocable Trust

Navarro, Carlos

Neilson, Gary

Nelson, Catherine

Nicholas J. Kuttner Trust

Niebuhr, Jens

Niehues, Alexander

Noonan, Robert

Obering, Henry

Odeen, Philip

One International Group Corp

Orjada, Bruce

Osborne, Robert

Otten, Mike

Patrick F. Peck Trust

Peck, Patrick

Penfield, Susan

Pfeifer, Tom

Pierce, Chris

Pigorini, Paolo

Porgess, Sam

Portman, Robin

Post, Robert H.

Pressley, Donald

Purdy, William

Rahl, Gary

Reitenspiess, Martin

Richard J. Wilhelm Trust

Robert H. Post Trust

Robert J. Lamb, III Trust

Robert W. Noonan Trust

Robert Williams Trust

Robinson, Robert

Ronald A. Hodge Trust

Ronald T. Kadish Trust

Rossotti, Charles

Rozanski, Horacio

Rubin, David

Russell, Tom

Salameh, Ghassan

Salomon, Roy

Salzano, Carl R.

Sam M. and Susan M. Porgess 2005 Trust

Samuel Strickland Revocable Trust

Saunders, Rick

Scheuble, Larry

Schu, George

Schulman, Gary

Seale, Adam

Sengupta, Suvojoy

Shrader, Ralph

Sifer, Joseph

Silverman, Rob

Smith, Frank

Smith, Gale

Sniffin, Edgar

Sogegian, Robert

Soules, Steve

 

 

Spiegel, Eric

St Clair, Sarah

Starnes, Craig

Staubach, Carol A.

Stevens, Kurt

Stewart, William

Strickland, Samuel

The Angela M. Messer Trust

The Joseph Logue Living Trust

The Makar Family Trust dated 

     
June 4, 2004

The Ralph W. Shrader Revocable Trust

Thoet, William

Thomas S. Greenspon Trust

Thomas, John

Thompson, Elizabeth

Trepant, Hugo

Trick, Peter

Trombetti, Emile

Trust f/b/o Bryan E. Shrader et al.

Trust f/b/o Jeffrey M. Shrader et al.

Trust f/b/o Mark A. Shrader et al.

Van Lee, Reginald

Verity, Richard

Vevon, Jerry

Vigilante, Kevin

Villano, Laurie

Voellger, Gary

Walter G. McFarland Trust

Wansley, William

Welles, Scott

Welsh, Jack

Wenzel, Gregory

Wiegand, Kenneth

Wilbur, Lee

Wilhelm, Richard J.

William H. Stewart III Trust

Wintersteller, Walter

Wolfle, Joan

Yuvanc, Joanne

Zakheim, Dov

Zuhoski, Charles

Zwany, Abramexv4w4

Exhibit 4.4

A separate Irrevocable Proxy and Tag-Along Agreement substantially identical in all material
respects to this Exhibit 4.4 hereto was entered into between Explorer Coinvest LLC and each of the
individuals or trusts listed below:

Abbe,
Brian Abram Zwany Trust

Adolph, Gerald

Ahlquist, Gary

Aldrich, David

Allen, James

Anderson, Kristine

Andrew S. Cohen Trust

Appleby, CG

Arnsberger, Mark

Arthur L. Fritzson Trust

Bastedo, William

Baxter, Greg

Bertone, Peter

Blackburn, Fred

Bolduc, Mickie

Bounds, Gene

Breeze, Cathy

Broyles, Cynthia

Bussmann, Johannes

Calderone, Matthew Carl Richard Salzano Trust

Carlos A. Navarro Trust

Carol A. Staubach Trust

Carter, Douglas

Castro, Rene

Catanzano, Keith

Catherine Annette Nelson Revocable Trust

Charles P. Zuhoski Revocable Trust

Christopher C. J. Ling Trust

Clyde, Andrew

Cohen, Andrew

Cook, Kevin

Crabtree, Thom

Cubbage, Gary

Cynthia L. Broyles Trust

Dahut, Karen

Darby, Maria

David F. Humenansky Revocable Trust

De Souza, Ivan

Dehoff, Kevin

DelBusso, Steven

Dempsey, Joan

DiFonzo, Leslie

Dodd, Jay

Dolan, Jeane

Doolittle, Paul

Doshi, Viren

Dotson, Judith

Doughty, Dennis

Douglas E. Himberger Trust

Douglas Wellington Carter Living Trust

Dov Solomon Zakheim Revocable Trust

Eikelmann, Stefan

Emile P. Trombetti Trust

Eulberg, Delwyn

Falkenstrom, Lee

Farber, Michael

Feeney, John

Feringa, Alexis

Finn, Molly

Fitzpatrick, Margo

Fletcher, Louise

Floyd, Peter

Fongern, Christian

Francis J. Henry, Jr. Trust

Frederick W. Knops III A&R Revocable Trust dated November 4, 2005

Fritzson, Arthur

Fuhrman, Thomas

Funk, Nicole

Furtado, Bob

Gallo, Laurene

Garner, Joseph

Gary C. Cubbage Trust

Gary D. Labovich Revocable Trust

Gemes, Alan

George M. Schu Trust

Gerald Adolph GRAT 2008

Gerencser, Mark

Ghassan S. Salameh Trust

Gibbons, Jim

Gibson, Dennis

Gilbert, Lesley

Gillespie, Neil

Givans, Natalie

Goforth, Patricia

Graves, Linda

Greenspon, Thomas

Gregory G. Wenzel Trust

Gushurst, Klaus-Peter

Hall, Keith

Hamilton, Charles

Hardwick, Nancy

Harrison, Gregory

Hayes, Randy

Helfenstein, Dee Dee

Henry, Jimmy

Herbert Stuart MacArthur Trust

Herman, Mark

Himberger, Douglas

Himler, Mark

Hirsh, Evan

Hodge, Ronald

Holder, Gordon

Holley, Rick

 

 

Howell, Lloyd

Humenansky, David

Hyde, Joan

Inserra, Andrea

Isman, Michael

Jack D. Welsh Jr., Trust

Jackson, William

Jacobsohn, Jake

James Manchisi Revocable Trust

Jaruzelski, Barratt

Jirovec, Todd

Joan A. Dempsey Trust

John A. Thomas Trust

John D. Lueders Revocable Trust

Jones, Michael

Joseph W. Mahaffee Revocable Trust

Judith H. Dotson Trust

Kadish, Ronald

Karen M. Dahut Trust

Karp, David

Kauffeld, Richard

Keith R. Hall Trust dated 25 November 2002

Kelly, Christopher

Kenneth F. Wiegand, Jr. Trust

Kibben, Jeffrey

Kletter, David

Knops, Frederick

Kosar, Corrine

Krings, Jorg

Kuenstner, Thomas

Kurt B. Stevens Trust

Kuttner, Nicholas

Labovich, Gary

Lamb, Robert

Lance, Gary

Lane, Douglas

Laurene A. Gallo Trust

Lauster Trust f/b/o E Lauster, f/b/o H Lauster, f/b/o M Lauster

Lauster, Steffen

Lee J. Falkenstrom Revocable Trust

Legan, Brian

Leinwand, Paul

Lerch, Marie

Leslie, Timathie

Ling, Christopher

Lloyd W. Howell, Jr. Trust

Logue, Joseph Los Altos Investments

Lueders, John

Lyman, Janet

MacArthur, Herbert

Mader, David

Mahaffee, Joseph

Makar, Robert

Manchisi, James

Margo L. Fitzpatrick Trust Maria Darby Trust

Mark J. Gerencser Trust

Mark L. Herman Revocable Trust

Martha, Joseph

Mather, Gary

Mayer, John

McConnell, Mike

McFarland, Walt

McLaughlin, Grant

Merkel, Judy

Messer, Angela

Messina, Alfred

Meyers, Bill

Mills, Ken

Mitchell, Anthony

Moeller, Leslie

Molly Finn Revocable Inter-Vivos Trust

Moore, Stephen

Muzik, Sharon

Nancy E. Hardwick Trust

Natalie M. Givans Revocable Trust

Navarro, Carlos

Neilson, Gary

Nelson, Catherine

Nicholas J. Kuttner Trust

Niebuhr, Jens

Niehues, Alexander

Noonan, Robert

Obering, Henry

Odeen, Philip One International Group Corp

Orjada, Bruce

Osborne, Robert

Otten, Mike

Patrick F. Peck Trust

Peck, Patrick

Penfield, Susan

Pfeifer, Tom

Pierce, Chris

Pigorini, Paolo

Porgess, Sam

Portman, Robin

Post, Robert H.

Pressley, Donald

Purdy, William

Rahl, Gary

Reitenspiess, Martin

Richard J. Wilhelm Trust

Robert H. Post Trust

Robert J. Lamb, III Trust

Robert W. Noonan Trust

Robert Williams Trust

Robinson, Robert

Ronald A. Hodge Trust

Ronald T. Kadish Trust

Rossotti, Charles

Rozanski, Horacio

Rubin, David

Russell, Tom

Salameh, Ghassan

2

 

Salomon, Roy

Salzano, Carl R.

Sam M. and Susan M. Porgess 2005 Trust

Samuel Strickland Revocable Trust

Saunders, Rick

Scheuble, Larry

Schu, George

Schulman, Gary

Seale, Adam

Sengupta, Suvojoy

Shrader, Ralph

Sifer, Joseph

Silverman, Rob

Smith, Frank

Smith, Gale

Sniffin, Edgar

Sogegian, Robert

Soules, Steve

Spiegel, Eric

St Clair, Sarah

Starnes, Craig

Staubach, Carol A.

Steinhardt, Allan

Stevens, Kurt

Stewart, William

Strickland, Samuel

Swindell, Jennifer

The Angela M. Messer Trust

The Joseph Logue Living Trust

The Makar Family Trust dated June 4, 2004

The Ralph W. Shrader Revocable Trust

Thoet, William

Thomas S. Greenspon Trust

Thomas, John

Thompson, Elizabeth

Trepant, Hugo

Trick, Peter

Trombetti, Emile

Trust f/b/o Bryan E. Shrader et al.

Trust f/b/o Jeffrey M. Shrader et al.

Trust f/b/o Mark A. Shrader et al.

Van Lee, Reginald

Verity, Richard

Vevon, Jerry

Vigilante, Kevin

Villano, Laurie

Voellger, Gary

Walter G. McFarland Trust

Wansley, William

Welles, Scott

Welsh, Jack

Wenzel, Gregory

Wiegand, Kenneth

Wilbur, Lee

Wilhelm, Richard J.

William H. Stewart III Trust

Wintersteller, Walter

Wolfle, Joan

Yuvanc, Joanne

Zakheim, Dov

Zuhoski, Charles

Zwany, Abram

3

 

IRREVOCABLE PROXY AND TAG-ALONG AGREEMENT

     This Irrevocable Proxy and Tag-Along Agreement (this “Agreement”) is entered into as
of date(s) set forth on the signature pages attached hereto, by and among (a) Explorer
Coinvest LLC, a Delaware limited liability company (the “Initial Carlyle Stockholder”) and
the stockholder whose name is set forth on the signature page hereof (the “Individual
Stockholder”).

RECITALS:

     WHEREAS, the Carlyle Stockholder currently is the owner of 9,566,000 shares of Company Common
Stock;

     WHEREAS, the Individual Stockholder currently is the owner of the number of shares of Company
Common Stock, Company Non Voting Common Stock, Company Restricted Common Stock, and Company Special
Voting Stock and Company Options to purchase the number of shares of Company Common Stock, set
forth on the signature page hereof; and

     WHEREAS, the Initial Carlyle Stockholder wishes to enter into a pro rata tag-along agreement
with the Individual Stockholder in exchange for the grant by the Individual Stockholder of an
irrevocable proxy to the Initial Carlyle Stockholder.

     NOW, THEREFORE, in consideration of the mutual promises, covenants, representations and
warranties made herein and of the mutual benefits to be derived herefrom, the parties hereto agree
as follows:

Section 1 Tag-Along Right.

     (a) In the event that any Carlyle Stockholder(s) (the “Initiating Stockholder(s)”)
propose(s) to Transfer any Securities to a Third Party Purchaser other than (i) to a
Permitted Transferee, (ii) pursuant to a registered public offering (it being understood
that the Individual Stockholder has piggyback registration rights with respect to registered public
offerings), (iii) in a bona fide sale to the public in accordance with Rule 144 under the
Securities Act or (iv) in a pro-rata distribution made by any Carlyle Stockholder(s) to its
partners or members for no additional consideration, then the Individual Stockholder shall have the
right (the “Tag-Along Right”) to require that the proposed Third Party Purchaser purchase
from the Individual Stockholder up to a number of whole Securities (which securities shall not
include Company Special Voting Stock (except to the extent described in the last sentence of this
Section 1(a)) or unvested Company Restricted Common Stock, or Company Options that are not
exercisable, except to the extent such Company Restricted Common Stock vests or Company Options
become exercisable as a result of the transactions contemplated by the applicable Sale Notice)
equal to the product of (x) the total number of Securities that the proposed Third Party
Purchaser has agreed, committed or is willing to purchase and (y) a fraction, the numerator
of which is the Aggregate Quantity of Securities (excluding any Securities that are not Proxy
Shares) owned by the Individual Stockholder, and the denominator of which is the Aggregate Quantity
of Securities

 

 

held by all holders of Securities (such product, the “Tag Eligible Securities”).
Notwithstanding anything to the contrary in this Section 1, if the Individual Stockholder
sells any Company Options issued under the Company Rollover Stock Plan to a Third Party Purchaser
pursuant to this Section 1, the Individual Stockholder (and, if applicable, a Permitted
Transferee and/or Related Trust of the Individual Stockholder) shall also sell, for no additional
consideration, a corresponding number of shares of Company Special Voting Stock to such Third Party
Purchaser.

     (b) The Initiating Stockholder(s) shall notify the Individual Stockholder in writing in the
event such Initiating Stockholder(s) propose(s) to make a Transfer or series of Transfers giving
rise to the Tag-Along Right at least fifteen (15) Business Days prior to the date on which such
Initiating Stockholder(s) expect(s) to consummate such Transfer (the “Sale Notice”) which
notice shall specify the number of Securities which the Third Party Purchaser intends to purchase
in such Transfer and the Third Party Terms with respect thereto. The Tag-Along Right may be
exercised by the Individual Stockholder by delivery of a written notice to the Company and the
Initiating Stockholder(s) proposing to sell Securities (the “Tag-Along Notice”) within ten
(10) Business Days following receipt of the Sale Notice from such Initiating Stockholder(s). The
Tag-Along Notice shall state the number of each type of Securities (which Securities shall not
include Company Special Voting Stock (except to the extent described in the last sentence of
Section 1(a)) or unvested Company Restricted Common Stock, or Company Options that are not
exercisable, except to the extent such Company Restricted Common Stock vests or Company Options
become exercisable as a result of the transactions contemplated by the applicable Sale Notice, and
which shall not exceed the Tag Eligible Securities), that the Individual Stockholder proposes to
include in such Transfer to the proposed Third Party Purchaser (such securities the “Transfer
Securities”). In the event that the proposed Third Party Purchaser does not purchase from the
Individual Stockholder’s Transfer Securities, then the Initiating Stockholder(s) shall not be
permitted to sell any Securities to the Third Party Purchaser, subject to the Initiating
Stockholder’s right to send a new Sale Notice in accordance with the procedures set forth in this
Section 1.

     (c) At the closing of the Transfer to any Third Party Purchaser pursuant to this Section
1, the Third Party Purchaser shall remit to the Individual Stockholder exercising its rights
under this Section 1, (i) the consideration for the Securities held by the
Individual Stockholder sold pursuant hereto, minus (ii) the Individual
Stockholder’s pro rata portion of any such consideration to be placed in escrow or otherwise held
back in accordance with the Third Party Terms, minus (iii) the aggregate exercise
price of any Company Options being Transferred by the Individual Stockholder to such Third Party
Purchaser, against transfer of such Securities subject to the Tag-Along Rights, free and clear of
all liens and encumbrances, by delivery by the Individual Stockholder of (A) certificates
for such Securities, duly endorsed for Transfer or with duly executed stock powers reasonably
acceptable to the Company and such Third Party Purchaser and/or (B) an instrument
evidencing the Transfer of the Company Options subject to the Tag-Along Right reasonably acceptable
to the Company and such Third Party Purchaser, and the compliance by the Individual Stockholder
with any other conditions to closing or payment of

5

 

consideration generally applicable to the Initiating Stockholder(s) and all other holders of
Securities selling Securities in such transaction; provided, however, that the
Individual Stockholder shall not be required to bear more than the Individual Stockholder’s pro
rata share (determined based on the number of Securities sold in the transactions contemplated by
the Tag-Along Notice) of all liabilities for the representations, warranties and other obligations
incurred in connection with the transactions contemplated by the Tag-Along Notice (other than with
respect to representations and warranties relating to the ownership of the Individual Stockholder’s
Securities or otherwise relating solely to the Individual Stockholder). Notwithstanding anything
to the contrary in this Section 1, the Individual Stockholder shall bear its pro rata share
of the aggregate fees, costs and expenses of all such transactions.

Section 2 Irrevocable Proxy.

     (a) In consideration of the Tag-Along Right, the Individual Stockholder hereby irrevocably
appoints the Initial Carlyle Stockholder, and any designee of the Initial Carlyle Stockholder, and
each of them individually, as the true and lawful attorney-in-fact and proxy of the Individual
Stockholder solely with respect to the matters set forth below, for and in the Individual
Stockholder’s name, place and stead, with full power of substitution and resubstitution, to vote
the Proxy Shares or act by written consent on behalf of the Proxy Shares, solely with respect to
the following matters:

     (i) the election or removal of members of the board of directors of the
Company; and

     (ii) the consent to or approval of any Company Sale that is approved by the
Board and the holders of a majority of the then-outstanding Voting Shares or any
items submitted to the stockholders of the Company for their consent or approval in
connection therewith (including, without limitation, any related votes under
Sections 242, 251, 252, 254, 257, 258, 263, 264 or 271 of the Delaware General
Corporation Law).

The Individual Stockholder hereby ratifies and confirms and undertakes to ratify and confirm all
that the Initial Carlyle Stockholder, in its capacity as the proxyholder of the Proxy Shares, may
lawfully do or cause to be done by virtue of the rights hereby granted.

     (b) The proxy and power of attorney granted to the Initial Carlyle Stockholder pursuant to
Section 2(a) of this Agreement by the Individual Stockholder shall, except as herein
provided, be irrevocable during the term of this Agreement, shall be deemed to be coupled with an
interest sufficient in law to support an irrevocable proxy and shall revoke any and all prior
proxies granted by the Individual Stockholder with respect to the Proxy Shares (other than any
prior proxies granted to the Initial Carlyle Stockholder pursuant to Section 16(m) of the
Stockholders Agreement but including, if such Individual Stockholder is not a natural person, any
prior proxies granted to the Related Individual of such Individual Stockholder). The power of
attorney granted by the Individual Stockholder herein is a durable power of attorney and shall

6

 

survive the dissolution or bankruptcy of the Individual Stockholder, and shall revoke any and
all prior powers of attorney granted by the Individual Stockholder with respect to the Proxy
Shares. The proxy and power of attorney granted hereunder shall terminate upon the termination of
this Agreement.

Section 3 Certain Definitions. Capitalized terms used herein and not otherwise defined
shall have the meanings assigned to such terms in the Stockholders Agreement.

     “Affiliate” means, with respect to any Person, any Person directly or indirectly
controlling, controlled by or under common control with such Person. For purposes of this
definition, “control” (and its derivatives) means the possession, directly or indirectly, of the
power to direct or cause the direction of the management and policies of a Person, whether by
contract, through the ownership of voting securities, as trustee or executor, or otherwise.

     “Aggregate Quantity of Securities” means, with reference to Securities owned by any
Person at any time or Securities outstanding at any time for purposes of any computation hereunder,
the number of shares of Company Common Stock, Company Restricted Common Stock and Company
Non-Voting Common Stock issued and outstanding and held by such Person or all Persons, as the case
may be, plus the number of shares of Company Common Stock issuable upon exercise, exchange or
conversion of Company Options held by such Person or all Persons, as the case may be, excluding
(x) any Company Options issued under the Equity Incentive Plan which are not vested at such
time and (y) Company Options that have an exercise, exchange or conversion price per share
greater than the price per share to be paid by the applicable Third Party Purchaser. Further, the
phrase “number of Securities” held by any Person or group of Persons or to be Transferred shall
mean the number of shares of Company Common Stock, Company Restricted Common Stock and Company
Non-Voting Common Stock held by such Person or group of Persons or to be Transferred, plus the
number of shares of Company Common Stock issuable upon exercise, exchange or conversion of Company
Options held by such Person or group of Persons (other than Company Options that have an exercise,
exchange or conversion price per share greater than the price per share to be paid by the
applicable Third Party Purchaser).

     “Agreement” shall have the meaning set forth in the Preamble.

     “Carlyle Stockholders” means (a) the Initial Carlyle Stockholder and
(b) any Affiliates of the Initial Carlyle Stockholder to which (i) the Initial
Carlyle Stockholder or any other Person transfers Company Common Stock or (ii) the Company
issues Company Common Stock.

     “Company” means Booz Allen Hamilton Holding Corporation, a Delaware corporation.

     “Company Common Stock” means shares of the Company’s Class A Common Stock, par value
$0.01 per share.

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     “Company Non-Voting Common Stock” means shares of the Company’s Class B Non-Voting
Common Stock, par value $0.01 per share.

     “Company Options” means options to purchase shares of Company Common Stock pursuant
to an option agreement and the Company Rollover Stock Plan, the Equity Incentive Plan or any
similar equity-based plans approved by the Board.

     “Company Restricted Common Stock” means shares of the Company’s Class C Restricted
Common Stock, par value $0.01 per share.

     “Company Rollover Stock Plan” means the Company’s Officer’s Rollover Stock Plan, as
such plan may be modified or supplemented from time to time by the board of directors of the
Company.

     “Company Sale” means the consummation of any transaction or series of transactions
(including, without limitation, any merger, recapitalization, reorganization, sale of stock or
other similar transaction) pursuant to which one or more Persons or group of Persons (other than
any Carlyle Stockholder) acquires (a) Securities possessing the voting power (without
taking into account this Agreement or any other agreement or proxy limiting the voting power of the
holder of such Securities) sufficient to elect a majority of the members of the board of directors
of the Company or the board of directors of the successor to the Company (whether such transaction
is effected by merger, consolidation, recapitalization, sale or transfer of the Company’s capital
stock or otherwise) or (b) all or substantially all of the assets of the Company and its
subsidiaries.

     “Company Special Voting Stock” means shares of the Company’s Class E Special Voting
Stock, par value $0.03 per share.

     “Individual Stockholder” shall have the meaning set forth in the Preamble.

     “Initiating Stockholder” shall have the meaning set forth in Section 1(a).

     “Party” means any of the parties to this Agreement.

     “Permitted Transfer” means (i) any Transfer of Company Common Stock, Company
Restricted Common Stock or Company Non-Voting Common Stock by an Individual Stockholder that is a
natural person (or a trust or entity of the type described below) (A) by gift to, or for
the benefit of, any member or members of his or her immediate family (which shall include any
spouse, or any lineal ancestor or descendant, niece, nephew, adopted child or sibling of him or her
or such spouse, niece, nephew or adopted child), (B) to a trust under which the
distribution of the Securities may be made only by such Individual Stockholder and/or such
Individual Stockholder’s immediate family or (C) to a partnership or limited liability
company for the benefit of the immediate family of such Individual Stockholder and the partners or
members of which are only such Individual Stockholder and such Individual Stockholder’s immediate
family, (ii) any Transfer of such Securities by an Individual Stockholder that is a

8

 

natural person to the heirs, executors or legatees of such Individual Stockholder by operation
of law or court order upon the death or incapacity of such Individual Stockholder; or (iii)
any Transfer of such Securities by an Individual Stockholder that is not a natural person to an
Affiliate; provided, that such Affiliate does not engage in any Competitive Activity (as
defined in the Stockholders Agreement).

     “Permitted Transferee” means the recipient of any Securities pursuant to a Permitted
Transfer.

     “Person” means any individual, corporation, partnership, limited partnership, limited
liability company, syndicate, trust, association or other entity.

     “Proxy Shares” means the outstanding Securities owned by the Individual Stockholder as
of the date hereof, together with any Securities subsequently issued to the Individual Stockholder
by the Company.

     “Related Trust” means, for any natural person, any trusts or entities to which such
natural person transferred, assigned or otherwise granted (i) Securities of the Company or
(ii) securities of Booz Allen Hamilton, Inc. that were exchanged for Securities of the
Company.

     “Related Individual” means, for any entity or trust, the natural person who initially
transferred, assigned or otherwise granted to such entity or trust (i) Securities of the Company or
(ii) securities of Booz Allen Hamilton, Inc. that were exchanged for Securities of the Company.

     “Sale Notice” shall have the meaning set forth in Section 1(b).

     “Securities” means (a) (i) shares of Company Common Stock,
(ii) shares of Company Restricted Common Stock, (iii) shares of Company Non-Voting
Common Stock, (iv) shares of Company Special Voting Stock and (v) Company Options;
and (b) any securities issued or issuable with respect to any of the foregoing (x)
upon any conversion or exchange thereof, (y) by way of stock dividend or other
distribution, stock split or reverse stock split or (z) in connection with a combination of
shares, recapitalization, merger, consolidation, exchange offer or other reorganization.

     “Stockholders Agreement” means that certain stockholders agreement, dated as of July
30, 2008, by and among the Company and its stockholders, as amended from time to time.

     “Tag-Along Notice” shall have the meaning set forth in Section 1(b).

     “Tag-Along Right” shall have the meaning set forth in Section 1(a).

     “Tag Eligible Securities” shall have the meaning set forth in Section 1(a).

     “Third Party Purchaser” means Persons other than an Affiliate of the Carlyle
Stockholder.

9

 

     “Transfer” means any direct or indirect sale, transfer, assignment, conveyance,
pledge, by operation of law or otherwise, or other encumbrance or disposition, but does not include
the sale of any shares of Company Special Voting Stock of the Company in accordance with the
Company Rollover Stock Plan.

     “Transfer Securities” shall have the meaning set forth in Section 1(b).

     “Voting Shares” means shares of Company Common Stock, Company Restricted Common Stock
and Company Special Voting Stock.

Section 4 Miscellaneous.

     (a) Effective Time. This Agreement shall become effective upon the effectiveness of
the registration statement relating to the initial public offering by the Company of Company Common
Stock and shall be null and void with no force and effect if such initial public offering is not
consummated within 60 days thereafter.

     (b) Effect of Transfers of Proxy Shares. Except in connection with a Permitted
Transfer, (i) no Transfer of Securities by the Individual Stockholder (or any of its
Permitted Transferees) shall result in the transfer to the transferee of any Tag-Along Rights with
respect to such transferred Securities and (ii) immediately prior to such Transfer, the
proxy granted herein to the Carlyle Stockholder with respect to such transferred Securities shall
terminate. In the event of a Transfer of any Proxy Shares to a Permitted Transferee by the
Individual Stockholder, the Proxy Shares so Transferred shall continue to be subject to the terms
and conditions of this Agreement and the Permitted Transferee shall take such Proxy Shares subject
to the rights and obligations set forth herein.

     (c) Assignment. This Agreement shall be binding upon and inure to the benefit of the
Parties and their respective legal representatives, heirs, legatees, successors, and, to the extent
set forth in Section 4(b), transferees pursuant to Permitted Transfers, and shall not otherwise be
assignable (whether by operation of law or otherwise) by any Party without the prior written
consent of the other Party.

     (d) Brokerage Accounts. The Individual Stockholder agrees that all Proxy Shares owned
by the Individual Stockholder or any of its Permitted Transferees shall be held in the name of the
Individual Stockholder or such Permitted Transferee and not in the name of any broker, brokerage
firm or other nominee.

     (e) Governing Law. This Agreement shall be governed by, and construed in accordance
with, the laws of the State of Delaware, without giving effect to its principles or rules of
conflict of laws to the extent such principles or rules are not mandatorily applicable by statute
and would require or permit the application of the laws of another jurisdiction.

10

 

     (f) Termination. This Agreement, and the respective rights and obligations of the
Parties, shall terminate immediately upon the earliest to occur of (x) the execution by the
Carlyle Stockholder and the Individual Stockholder of a written agreement to terminate this
Agreement, (y) such time as more than 60% of the Securities have been sold to the public
pursuant to an effective registration statement (other than a sale by the Company pursuant to a
registration statement on Form S-8) or in accordance with Rule 144 or another exemption from
registration or (z) such time when the Carlyle Stockholders cease collectively to own and
have the power to dispose of Company Common Stock, Company Non-Voting Common Stock and Company
Restricted Common Stock representing at least twenty-five percent (25%) of the interests in the
Company represented by all issued and outstanding shares of Company Common Stock, Company
Non-Voting Common Stock and Company Restricted Common Stock.

     (g) Specific Performance; Submission to Jurisdiction. The Parties agree that
irreparable damage would occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached. It is accordingly
agreed that the Parties shall be entitled to an injunction or injunctions to prevent breaches of
this Agreement and to enforce specifically the terms and provisions of this Agreement in federal
and state courts located in Wilmington, Delaware, this being in addition to any other remedy to
which such Party is entitled at law or in equity. In addition, each of the Parties hereto
(i) consents to submit itself to the personal jurisdiction of the federal and state courts
located in Wilmington, Delaware in the event any dispute arises out of this Agreement or any of the
transactions contemplated by this Agreement; (ii) agrees that it will not attempt to deny
or defeat such personal jurisdiction by motion or other request for leave from such court,
(iii) agrees that it will not bring any action relating to this Agreement or any of the
transactions contemplated by this Agreement in any court other than the federal or state courts
located in Wilmington, Delaware, and (iv) to the fullest extent permitted by Law, consents to
service being made through the notice procedures set forth in Section 4(f). Each Party
hereto hereby agrees that, to the fullest extent permitted by Law, service of any process, summons,
notice or document by U.S. registered mail to the respective addresses set forth in Section
4(f) shall be effective service of process for any suit or proceeding in connection with this
Agreement or the transactions contemplated hereby.

     (h) Interpretation. The headings of the Sections contained in this Agreement are
solely for the purpose of reference, are not part of the agreement of the Parties and shall not
affect the meaning or interpretation of this Agreement. The words “this Agreement”, “herein”,
“hereunder”, “hereof”, “hereby”, or other words of similar import refer to this Agreement as a
whole and not to any particular Article, Section or other subdivision hereof. Unless the context
requires otherwise, pronouns in the masculine, feminine and neuter genders shall be construed to
include any other gender, and words in the singular form shall be construed to include the plural
and vice versa.

     (i) Notices. All notices and other communications provided for or permitted hereunder
shall be in writing and shall be deemed to have been duly given and received when

11

 

delivered by overnight courier or hand delivery, when sent by telecopy, or five (5) days after
mailing if sent by registered or certified mail (return receipt requested) postage prepaid, to the
Parties at the following addresses (or at such other address for any Party as shall be specified by
like notices).

	 	(i)	 	If to the Carlyle Stockholder, addressed to the Carlyle
Stockholder, c/o The Carlyle Group, at:

1001 Pennsylvania Avenue, N.W.

Washington, DC 20004

Attention: Ian Fujiyama

Facsimile: (202) 347-9250

With a copy to:

Debevoise & Plimpton LLP

919 Third Avenue

New York, NY 10022

Attention: Jeffrey J. Rosen

Facsimile: (212) 909-6836

And a copy to:

Booz Allen Hamilton Inc.

8283 Greensboro Drive

McLean, Virginia 22012

Attention: Law Department

Facsimile: (703) 902-3580

	 	(ii)	 	If to the Individual Stockholder, to the address set forth on
the Individual Stockholder’s signature page hereto

With a copy to:

Booz Allen Hamilton Inc.

8283 Greensboro Drive

McLean, Virginia 22012

Attention: Law Department

Facsimile: (703) 902-3580

     (j) Counterparts. This Agreement may be executed in two or more counterparts, each of
which shall be deemed to be an original and all of which together shall be deemed to constitute one
and the same agreement. Any facsimile copies hereof or signature thereon shall, for all purposes,
be deemed originals.

12

 

     (k) Attorney’s Fees. In any action or proceeding brought to enforce any provision of
this Agreement, the successful Party shall be entitled to recover reasonable attorney’s fees and
expenses in addition to any other available remedy.

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

     (m) Integration. This Agreement constitutes the entire agreement among the parties
pertaining to the subject matter hereof and supersedes all prior agreements and understandings of
the parties in connection therewith.

[remainder of page intentionally left blank.]

13

 

     IN WITNESS WHEREOF, the Parties have executed this Agreement as of the date(s) set forth
below.

	 	 	 	 	 
	 	EXPLORER COINVEST LLC

 	 
	 	By:  	Carlyle Partners V US, L.P., its managing member
 
	 	 	 
	 	By:  	TC Group V US, L.P., its general partner
 	 
	 	 	 
	 	By:  	TC Group V US, L.L.C., its general partner
 	 
	 	 	 
	 	By:  	TC Group Investment Holdings, L.P., its managing member
 
	 	 	 
	 	By:  	TCG Holdings II, L.P., its general partner
 	 
	 	 	 
	 	  	By: 	/s/ Ian Fujiyama	 
	 	 	 	Name: Ian Fujiyama 	 
	 	 	 	Title: Managing Director 	 
	 	 	 
	 	Date: 10/20/2010 	 

[Signature page to Irrevocable Proxy and Tag-Along Agreement]

 

 

	 	 	 	 	 
	Date: _________________    	INDIVIDUAL STOCKHOLDER

 	 
	 
	 	Name: 	 
	 	Address: 	 
	 	 	 
	 	If the Individual Stockholder is not a natural person:

 	 
	 	By:  	 	 
	 	 	Name:  	 	 
	 	 	Title:  	 	 
	 
	 	Company Common Stock: ___________ shares

Company Non Voting Common Stock: __________ shares

Company Restricted Common Stock: ___________ shares

Company Special Voting Stock: ___________ shares

Company Options to purchase: ___________ shares

 	 

If the Individual Stockholder is not a natural person,

solely for the purposes of Section 2(b), accepted and agreed by:

Signature of

Related Individual: ________________________

Name: ________________________

[Signature page to Irrevocable Proxy and Tag-Along Agreement]

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