Document:

Extended and Restated 1996 Employee Stock Purchase Plan

 Exhibit 10.1 
 POWERWAVE TECHNOLOGIES, INC. 
 EXTENDED AND RESTATED 1996 
 EMPLOYEE STOCK PURCHASE PLAN 
 This
EXTENDED AND RESTATED 1996 EMPLOYEE STOCK PURCHASE PLAN (the “Plan”) is hereby established by POWERWAVE TECHNOLOGIES, INC., a Delaware corporation (the “Company”) effective as of the date of stockholder approval of the Plan (the
“Effective Date”). 
 ARTICLE I 
 PURPOSE OF THE PLAN 
 1.1 Purpose. The Company has determined that it is in its best
interest to provide incentives to attract and retain employees and to increase employee morale by providing a program through which employees of the Company, and of such of the Company’s subsidiaries as the Company’s Board of Directors
(the “Board of Directors”) may from time to time designate (each a “Designated Subsidiary”, and collectively, “Designated Subsidiaries”), may acquire a proprietary interest in the Company through the purchase of shares
of the Common Stock of the Company (“Company Stock”). The Plan is hereby established by the Company to permit employees to subscribe for and purchase directly from the Company shares of the Company Stock at a discount from the market
price, and to pay the purchase price in installments by payroll deductions. The Plan is intended to qualify as an “employee stock purchase plan” under Section 423 of the Internal Revenue Code of 1986, as amended from time to time (the
“Code”). The provisions of the Plan are to be construed in a matter consistent with the requirements of Section 423 of the Code. The Plan is not intended to be an employee benefit plan under the Employee Retirement Income Security Act
of 1974, and therefore is not required to comply with that Act. 
 ARTICLE II 
 DEFINITIONS 
 2.1 Compensation. “Compensation” means the
amount indicated on the Form W-2, including any elective deferrals with respect to a plan of the Company qualified under either Section 125 or Section 401(a) of the Code, issued to an employee by the Company. 
 2.2 Employee. “Employee” means each person currently employed by the Company or any of its Designated Subsidiaries, any portion
of whose income is subject to withholding of income tax or for whom Social Security retirement contributions are made by the Company or any Designated Subsidiary. 
 2.3 5% Owner. “5% Owner” means an Employee who, immediately after the grant of any rights under the Plan, would own Company Stock or hold outstanding options to purchase Company Stock
possessing 5% or more of the total combined voting power of all classes of stock of the Company. For purposes of this Section, the ownership attribution rules of Code Section 425(d) shall apply. 
 2.4 Grant Date. “Grant Date” means the first day of each Offering Period (August 1 and February 1) under the Plan.

 2.5 Participant. “Participant” means an Employee who has satisfied the eligibility requirements of
Section 3.1 and has become a participant in the Plan in accordance with Section 3.2. 
 2.6 Plan Year. “Plan
Year” means the twelve consecutive month period ending on the last day of January. 
 2.7 Offering Period. “Offering
Period” means the six-month periods from February 1 through July 31 and August 1 through January 31 of each Plan Year. 
 2.8 Purchase Date. “Purchase Date” means the last day of each Offering Period (July 31 or January 31). 
  

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 ARTICLE III 
 ELIGIBILITY AND PARTICIPATION 
 3.1 Eligibility. Each Employee of the Company, or any
Designated Subsidiary, who, on the Grant Date, is customarily engaged on regularly- scheduled basis of more than twenty (20) hours per week and who as been employed for at least ninety (90) days in the rendition of personal services to the
Company, or any Designated Subsidiary, may become a Participant in the Plan on the Grant Date coincident with or next following his satisfaction of such requirements of employment with the Company or any Designated Subsidiary. 
 3.2 Participation. An Employee who has satisfied the eligibility requirements of Section 3.1 may become a Participant in the Plan upon
his completion and delivery to the Human Resources Department of the Company of a stock purchase agreement provided by the Company (the “Stock Purchase Agreement”) authorizing payroll deductions. Payroll deductions for a Participant shall
commence on the Grant Date coincident with or next following the filing of the Participant’s Stock Purchase Agreement and shall remain in effect until revoked by the Participant by the filing of a notice of withdrawal from the Plan under
Article VIII or by the filing of a new Stock Purchase Agreement providing for a change in the Participant’s payroll deduction rate in accordance with Section 5.2. 
 3.3 Special Rules. Under no circumstances shall: 
 (a) A 5% Owner be granted a right to purchase Company Stock under the Plan; 
 (b) A Participant be entitled to purchase Company Stock under the Plan which, when aggregated with all other employee stock purchase plans
of the Company, exceed an amount equal to the Aggregate Maximum. “Aggregate Maximum” means an amount equal to $25,000 worth of Company Stock (determined using the fair market value of such Company Stock at each applicable Grant Date)
during each calendar year; or 
 (c) The number of shares of Company Stock purchasable by a Participant on any Purchase Date
exceed 5,000 shares, subject to periodic adjustments under Section 10.4. 
 ARTICLE IV 
 OFFERING PERIODS 
 4.1 Offering
Periods. The Plan shall provide for Offering Periods commencing on each Grant Date and terminating on the next following Purchase Date. 
 ARTICLE V 
 PAYROLL DEDUCTIONS 
 5.1 Participant Election. Upon completion of the Stock Purchase Agreement, each Participant shall designate the amount of payroll deductions to be made from his or her paycheck to purchase Company Stock
under the Plan. The amount of payroll deductions shall be designated in the whole percentages of Compensation, not to exceed 20%. The amount so designated upon the Stock Purchase Agreement shall be effective as of the next Grant Date and shall
continue until terminated or altered in accordance with Section 5.2 below. 
 5.2 Changes in Election. A Participant may
terminate participation in the Plan at any time prior to the close of an Offering Period as provided in Article VIII. A Participant may increase or decrease the rate of payroll deductions once during each Offering Period by completing and delivering
to the Human Resources Department of the Company a new Stock Purchase Agreement setting forth the desired change. A Participant may also terminate payroll deductions and have accumulated deductions for the Offering Period applied to the purchase of
Company Stock as of the next Purchase Date by completing and delivering to the 

  

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Human Resources Department a new Stock Purchase Agreement setting forth the desired change. Any change under this Section shall become effective on the next
payroll period (to the extent practical under the Company’s payroll practices) following the delivery of the new Stock Purchase Agreement. 
 5.3 Participant Accounts. The Company shall establish and maintain a separate account (“Account”) for each Participant. The amount of each Participant’s payroll deductions shall be credited to his Account. No
interest will be paid or allowed on amounts credited to a Participant’s Account. All payroll deductions received by the Company under the Plan are general corporate assets of the Company and may be used by the Company for any corporate purpose.
The Company is not obligated to segregate such payroll deductions. 
 ARTICLE VI 
 GRANT OF PURCHASE RIGHTS 
 6.1
Right to Purchase Shares. On each Grant Date, each Participant shall be granted a right to purchase at the price determined under Section 6.2 that number of shares and partial shares of Company Stock that can be purchased or
issued by the Company based upon that price with the amounts held in his Account, subject to the limits set forth in Section 3.3. In the event that there are amounts held in a Participant’s Account that are not used to purchase Company
Stock, such amounts shall remain in the Participant’s Account and shall be eligible to purchase Company Stock in any subsequent Offering Period. 
 6.2 Purchase Price. The purchase price for any Offering Period shall be the lesser of: 
 (a) 85% of the Fair Market Value of Company Stock on the Grant Date; or 
 (b) 85% of the Fair Market Value of
Company Stock on the Purchase Date. 
 6.3 Fair Market Value. “Fair Market Value” shall mean the value of one share
of Company Stock, determined as follows: 
 (a) If the Company Stock is then listed or admitted to trading on the Nasdaq
National Market or a stock exchange which reports closing sale prices, the Fair Market Value shall be the closing sale price on the date of valuation on the Nasdaq National Market or principal stock exchange on which the Company Stock is then listed
or admitted to trading, or, if no closing sale price is quoted or no sale takes place on such day, then the Fair Market Value shall be the closing sale price of the Company Stock on the Nasdaq National Market or such exchange on the next preceding
day on which a sale occurred. 
 (b) If the Company Stock is not then listed or admitted to trading on the Nasdaq National
Market or a stock exchange which reports closing sale prices, the Fair Market Value shall be the average of the closing bid and asked prices of the Company Stock in the over-the-counter market on the date of valuation. 
 (c) If neither (a) nor (b) is applicable as of the date of valuation, then the Fair Market Value shall be determined by the
Administrator in good faith using any reasonable method of valuation, which determination shall be conclusive and binding on all interested parties. 
 ARTICLE VII 
 PURCHASE OF STOCK 
 7.1 Purchase of Company Stock. Absent an election by the Participant to terminate and have his or her Account returned, on each Purchase Date, the Plan shall purchase on behalf of each Participant the
maximum number of whole shares of Company Stock at the purchase price determined under Section 6.2 above as can be purchased with the amounts held in each Participant’s Account. In the event that there are amounts held in a
Participant’s Account that are not used to purchase Company Stock, all such amounts shall be held in the Participant’s Account and carried forward to the next Offering Period. 
  

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 7.2 Delivery of Company Stock. 
 (a) Company Stock acquired under the Plan shall be issued directly to a contract administrator (“Administrator”) engaged by the
Company to administer the Plan under Article IX. All Company Stock so issued (“Plan Held Stock”) shall be held in the name of the Administrator for the benefit of the Plan. The Administrator shall maintain accounts for the benefit of the
Participants which shall reflect each Participant’s interest in the Plan Held Stock. Such accounts shall reflect the number of whole and partial shares of Company Stock that are being held by the Administrator for the benefit of each
Participant. 
 (b) Where Company Stock is issued under this paragraph, only full shares of stock will be issued to a
Participant. The time of issuance and delivery of shares may be postponed for such period as may be necessary to comply with the registration requirements under the Securities Act of 1933, as amended, the listing requirements of any securities
exchange on which the Company Stock may then be listed, or the requirements under other laws or regulations applicable to the issuance or sale of such shares. 
 ARTICLE VIII 
 WITHDRAWAL 
 8.1 In Service Withdrawals. At any time prior to the Purchase Date of an Offering Period, any Participant may withdraw the amounts held in
his Account by executing and delivering to the Human Resources Department for the Company written notice of withdrawal on the form provided by the Company. In such a case, the entire balance of the Participant’s Account shall be paid to the
Participant, without interest, as soon as is practicable. Upon such notification, the Participant shall cease to participate in the Plan for the remainder of the Offering Period in which the notice is given. Any Employee who has withdrawn under this
Section shall be excluded from participation in the Plan for the remainder of the Offering Period, but may then be reinstated as a participant for a subsequent Offering Period by executing and delivering a new Stock Purchase Agreement to the Human
Resources Department of the Company. 
 8.2 Termination of Employment. 
 (a) In the event that a Participant’s employment with the Company terminates for any reason, the Participant shall cease to
participate in the Plan on the date of termination. As soon as is practical following the date of termination, the entire balance of the Participant’s Account shall be paid to the Participant or his beneficiary, without interest. 
 (b) A Participant may file a written designation of a beneficiary who is to receive any shares of Company Stock purchased under the Plan
or any cash from the Participant’s Account in the event of his or her death subsequent to a Purchase Date, but prior to delivery of such shares and cash. In addition, a Participant may file a written designation of a beneficiary who is to
receive any cash from the Participant’s Account under the Plan in the event of his death prior to a Purchase Date under paragraph (a) above. 
 (c) Any beneficiary designation under paragraph (b) above may be changed by the Participant at any time by written notice. In the event of the death of a Participant, the Committee may rely upon the most recent
beneficiary designation it has on file as being the appropriate beneficiary. In the event of the death of a Participant where no valid beneficiary designation exists or the beneficiary has predeceased the Participant, the Committee shall deliver any
cash or shares of Company Stock to the executor or administrator of the estate of the Participant, or if no such executor or administrator has been appointed to the knowledge of the Committee, the Committee, in its sole discretion, may deliver such
shares of Company Stock or cash to the spouse or any one or more dependents or relatives of the Participant, or if no spouse, dependent or relative is known to the Committee, then to such other person as the Committee may designate. 
 ARTICLE IX 
 PLAN ADMINISTRATION 

 9.1 Plan Administration. 
 (a) Authority to control and manage the operation and administration of the Plan shall be vested in the Board of Directors (the “Board”) for the Company, or a committee (“Committee”) thereof. The
Board or Committee shall have all powers necessary to supervise the administration of the Plan and control its operations. 
  

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 (b) In addition to any powers and authority conferred on the Board or Committee elsewhere
in the Plan or by law, the Board or the Committee shall have the following powers and authority: 
 (i) To designate agents to
carry out responsibilities relating to the Plan; 
 (ii) To administer, interpret, construe and apply this Plan and to answer
all questions which may arise or which may be raised under this Plan by a Participant, his beneficiary or any other person whatsoever; 
 (iii) To establish rules and procedures from time to time for the conduct of its business and for the administration and effectuation of its responsibilities under the Plan; and 
 (iv) To perform or cause to be performed such further acts as it may deem to be necessary, appropriate, or convenient for the operation of
the Plan. 
 (c) Any action taken in good faith by the Board or Committee in the exercise of authority conferred upon it by this Plan shall be
conclusive and binding upon a Participant and his beneficiaries. All discretionary powers conferred upon the Board shall be absolute. 
 9.2
Limitation of Liability. No Employee of the Company nor member of the Board or Committee shall be subject to any liability with respect to his duties under the Plan unless the person acts fraudulently or in bad faith. To the extent
permitted by law, the Company shall indemnify each member of the Board or Committee, and any other Employee of the Company with duties under the Plan who was or is a party, or is threatened to be made a party, to any threatened, pending or completed
proceeding, whether civil, criminal, administrative, or investigative, by reason of the person’s conduct in the performance of his duties under the Plan. 
 ARTICLE X 
 COMPANY STOCK 
 10.1 Limitations on Purchase of Shares. The maximum number of shares of Company Stock that shall be made available for sale under the Plan
shall be 539,652 shares, subject to adjustment under Section 10.4 below. The shares of Company Stock to be sold to Participants under the Plan will be issued by the Company. If the total number of shares of Company Stock that would otherwise be
issuable pursuant to rights granted pursuant to Section 6.1 of the Plan at the Purchase Date exceeds the number of shares then available under the Plan, the Company shall make a pro rata allocation of the shares remaining available in as
uniform and equitable manner as is practicable. In such event, the Company shall give written notice of such reduction of the number of shares to each participant affected thereby and any unused payroll deductions shall be returned to such
participant if necessary. 
 10.2 Voting Company Stock. The Participant will have no interest or voting right in shares to be
purchased under Section 6.1 of the Plan until such shares have been purchased. 
 10.3 Registration of Company Stock.
Shares to be delivered to a Participant under the Plan will be registered in the name of the Participant unless designated otherwise by the Participant. 
 10.4 Changes in Capitalization of the Company. Subject to any required action by the stockholders of the Company, the number of shares of Company Stock covered by each right under the Plan which has not
yet been exercised and the number of shares of Company Stock which have been authorized for issuance under the Plan but have not yet been placed under rights or which have been returned to the Plan upon the cancellation of a right, as well as the
Purchase Price per share of Company Stock covered by each right under the Plan which has not yet been exercised, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Company Stock resulting from a stock
split, stock dividend, spin-off, reorganization, recapitalization, merger, consolidation, exchange of shares or the like. Such adjustment shall be made by the Board of Directors 

  

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for the Company, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issue by the Company of
shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Company Stock subject to any right granted
hereunder. 
 10.5 Merger of Company. In the event that the Company at any time proposes to merge into, consolidate with or
enter into any other reorganization pursuant to which the Company is not the surviving entity (including the sale of substantially all of its assets or a “reverse” merger in which the Company is the surviving entity), the Plan shall
terminate, unless provision is made in writing in connection with such transaction for the continuance of the Plan and for the assumption of rights theretofore granted, or the substitution for such rights of new rights covering the shares of a
successor corporation, with appropriate adjustments as to number and kind of shares and prices, in which event the Plan and the rights theretofore granted or the new rights substituted therefore, shall continue in the manner and under the terms so
provided. If such provision is not made in such transaction for the continuance of the Plan and the assumption of rights theretofore granted or the substitution for such rights of new rights covering the shares of a successor corporation, then the
Board of Directors or its committee shall cause written notice of the proposed transaction to be given to the persons holding rights not less than 10 days prior to the anticipated effective date of the proposed transaction, and, concurrent with the
effective date of the proposed transaction, such rights shall be exercised automatically in accordance with Section 7.1 as if such effective date were a Purchase Date of the applicable Offering Period unless a Participant withdraws from the
Plan as provided in Section 8.1. 
 ARTICLE XI 
 MISCELLANEOUS MATTERS 
 11.1 Amendment and Termination. The Plan shall terminate on
July 31, 2017. Since future conditions affecting the Company cannot be anticipated or foreseen, the Company reserves the right to amend, modify, or terminate the Plan at any time. Upon termination of the Plan, all benefits shall become payable
immediately. Notwithstanding the foregoing, no such amendment or termination shall affect rights previously granted, nor may an amendment make any change in any right previously granted which adversely affects the rights of any Participant. In
addition, no amendment may be made without prior approval of the stockholders of the Company if such amendment would: 
 (a)
Increase the number of shares of Company Stock that may be issued under the Plan; 
 (b) Materially modify the requirements as
to eligibility for participation in the Plan; or 
 (c) Materially increase the benefits which accrue to Participants under
the Plan. 
 11.2 Stockholder Approval. Continuance of the Plan and the effectiveness of any right granted hereunder shall be
subject to approval by the stockholders of the Company, within twelve months before or after the date the Plan is adopted by the Board. 
 11.3 Benefits Not Alienable. Benefits under the Plan may not be assigned or alienated, whether voluntarily or involuntarily. Any attempt at assignment, transfer, pledge or other disposition shall be without effect, except that
the Company may treat such act as an election to withdraw funds in accordance with Article VIII. 
 11.4 No Enlargement of Employee
Rights. This Plan is strictly a voluntary undertaking on the part of the Company and shall not be deemed to constitute a contract between the Company and any Employee or to be consideration for, or an inducement to, or a condition of, the
employment of any Employee. Nothing contained in the Plan shall be deemed to give the right to any Employee to be retained in the employ of the Company or to interfere with the right of the Company to discharge any Employee at any time. 

11.5 Governing Law. To the extent not preempted by Federal law, all legal questions pertaining to the Plan shall be determined in
accordance with the laws of the State of Delaware. 
 11.6 Non-Business Days. When any act under the Plan is required to be
performed on a day that falls on a Saturday, Sunday or legal holiday, that act shall be performed on the next succeeding day which is not a Saturday, Sunday or legal holiday. Notwithstanding the above, Fair Market Value shall be determined in
accordance with Section 6.3. 
  

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 11.7 Compliance With Securities Laws. Notwithstanding any provision of the Plan, the
Committee shall administer the Plan in such a way to ensure that the Plan at all times complies with any requirements of Federal Securities Laws. 
  

 7Exhibit 10.1

 Exhibit 10.1 
 FIFTH MODIFICATION TO AMENDED AND RESTATED BUSINESS LOAN AND SECURITY 
 AGREEMENT AND OTHER LOAN DOCUMENTS 
 THIS FIFTH MODIFICATION TO AMENDED AND RESTATED BUSINESS LOAN AND
SECURITY AGREEMENT AND OTHER LOAN DOCUMENTS (this “Modification”), dated as of December 3, 2007, is made by and among (i) CITIZENS BANK OF PENNSYLVANIA, a Pennsylvania state chartered bank (“Citizens
Bank”), acting in its capacity as the agent for the Lenders (the “Agent”), having offices at 8521 Leesburg Pike, Suite 405, Vienna, Virginia 22182; (ii) CITIZENS BANK, acting in its capacity as a Lender, and each other
“Lender” party to the hereinafter defined Loan Agreement (each, a “Lender” and collectively, the “Lenders”); and (iii) ICF CONSULTING GROUP, INC., a Delaware corporation (the “Primary
Operating Company”), ICF INTERNATIONAL, INC., a Delaware corporation (the “Parent Company”), and each other “Borrower” party to the Loan Agreement (together with the Primary Operating Company and the Parent
Company, each, a “Borrower” and collectively, the “Borrowers”), each having offices at 9300 Lee Highway, Fairfax, Virginia 22031. Capitalized terms used but not defined herein shall have the meanings attributed to
such terms in the Loan Agreement. 
 W I T N E S S E T H    T H A T: 
 WHEREAS, pursuant to the terms of a certain Amended and Restated Business Loan and Security Agreement dated as of October 5, 2005 (as
amended, modified or restated from time to time, the “Loan Agreement”), by and among the Borrowers, the Agent and the Lenders, the Borrowers originally obtained loans and certain other financial accommodations (collectively, the
“Loan”) from the Lenders in the aggregate maximum principal amount of Seventy-five Million and No/100 Dollars ($75,000,000.00) comprised of (a) Facility A in the maximum principal amount of Forty-five Million and No/100 Dollars
($45,000,000.00), (b) Facility B in the original principal amount of Twenty-two Million and No/100 Dollars ($22,000,000.00), and (c) Facility C in the original principal amount of Eight Million and No/100 Dollars ($8,000,000.00); and

 WHEREAS, the Loan is evidenced by the Notes and secured by, among other things, the collateral described in the Loan
Agreement; and 
 WHEREAS, pursuant to the terms of a certain First Modification to Amended and Restated Business Loan and
Security Agreement and Other Loan Documents dated as of March 14, 2006, the Lenders agreed to a temporary allowance of up to Six Million and No/100 Dollars ($6,000,000.00) for over-advances for the benefit of the Borrowers; and 
 WHEREAS, pursuant to the terms of a certain Second Modification to Amended and Restated Business Loan and Security Agreement and Other Loan
Documents dated as of August 25, 2006, the maximum principal amount of Facility A was increased from Forty-five Million and No/100 Dollars ($45,000,000.00) to Sixty-five Million and No/100 Dollars ($65,000,000.00), and ICF International
consummated an initial public offering of its common stock, the proceeds of which were used, in part, to repay all amounts then outstanding and unpaid under Facility A, Facility B, Facility C and the Swing Line Facility; and 
 WHEREAS, pursuant to the terms of a certain Third Modification to Amended and Restated Business Loan and Security Agreement and Other Loan
Documents dated as of December 29, 2006, the Agent and the Lenders agreed to modify certain provisions of the Loan Agreement, including without 

 
limitation, provisions pertaining to pricing, interest rate protection arrangements and other provisions more particularly described therein; and 

WHEREAS, pursuant to the terms of a certain Fourth Modification to Amended and Restated Business Loan and Security Agreement and Other
Loan Documents dated as of June 28, 2007, Z-Tech Corporation was joined as a “Borrower” party to the Loan Agreement and the other Loan Documents, the maximum principal amount of Facility A was increased from Sixty-five Million and
No/100 Dollars ($65,000,000.00) to Ninety-five Million and No/100 Dollars ($95,000,000.00) and the maximum principal amount of the Swing Line Facility was increased from Ten Million and No/100 Dollars ($10,000,000.00) to Twenty Million and No/100
Dollars ($20,000,000.00); and 
 WHEREAS, the Borrowers have requested that the Agent and the Lenders (a) consent to the
Borrowers’ proposed acquisition (the “Simat Acquisition”) of Simat, Helliesen & Eichner, Inc., a Delaware corporation (“Simat Parent”) pursuant to that certain Merger Agreement dated as of
November 16, 2007 (the “Simat Acquisition Agreement”), by and among ICF International, ICF Consulting, ICF Consulting Group Acquisition, Inc., Simat, various shareholders of Simat and Clive Midland, (b) further increase
the maximum principal amount of Facility A from Ninety-five Million and No/100 Dollars ($95,000,000.00) to One Hundred Fifteen Million and No/100 Dollars ($115,000,000.00), the proceeds of which will be used, in part, to finance the acquisition of
Simat, as well as the transactional costs and expenses related thereto, (c) modify the pricing for (i.e., the interest rate charged on) amounts advanced under Facility A set forth on Exhibit 7 attached to the Loan Agreement, and (d) amend
certain other terms and provisions set forth in and/or contemplated by the Loan Agreement; and 
 WHEREAS, the Borrowers have
also requested that the Agent and Lenders make overadvances available to the Borrowers for a limited period of time; and 
 WHEREAS, the Agent and the Lenders have agreed to grant the Borrowers’ request, subject to the terms and conditions set forth herein; and 
 WHEREAS, the Borrowers, the Agent and the Lenders desire to enter into this Modification to memorialize the agreements and understanding of the parties with respect to the foregoing matters, as
hereinafter provided. 
 NOW THEREFORE, for Ten Dollars ($10.00) and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 
 1. Recitals. The foregoing recitals
are hereby incorporated herein by this reference and made a part hereof, with the same force and effect as if fully set forth herein. 
 2.
Loan Increase; Promissory Notes. 
 (A) Subject to the terms and provisions set forth in this Modification, the Facility A Commitment
Amount is hereby increased from Ninety-five Million and No/100 Dollars ($95,000,000.00) to One Hundred Fifteen Million and No/100 Dollars ($115,000,000.00). 
 (B) Simultaneously with the execution and delivery of this Modification, the Borrowers shall execute and deliver to the Agent, in form and substance reasonably satisfactory to the Agent and its counsel: (a) one
or more note modification agreements and/or substitute promissory notes with respect to Facility A, which shall evidence the increase to the Facility A Commitment Amount, as described in this Modification, as well as the corresponding pro rata
increase to each Facility A Note; (b) an opinion of counsel; (c) certified resolutions and consents, authorizing the increase to the Commitment Amount and related matters; (d) UCC, judgment, pending litigation, bankruptcy and tax lien
search results, showing no 

  

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intervening liens; and (e) such other documents, instruments and agreements as the Agent and/or the Lenders may reasonably request. 
 (C) Each of the parties hereto acknowledges and agrees that: (i) any and all collateral securing the Obligations in whole or in part shall secure
the Obligations, as increased, expanded and extended pursuant to this Modification, and all Loan Documents are hereby deemed amended accordingly; and (ii) the additional Loan proceeds of Facility A made available pursuant to this Modification
shall be advanced from time to time in accordance with and subject to the applicable provisions of the Loan Agreement. 
 3. Definitional
Amendments. 
 (A) The definitions of “Facility A”, and “Facility A Commitment Amount” set forth in the section of
the Loan Agreement titled “Certain Definitions” are hereby deleted in their entirety and replaced with the following: 
 ““Facility A” shall mean the revolving credit facility being extending pursuant to this Agreement on the basis of Eligible Billed Government Accounts Receivable, Eligible Billed Commercial Accounts Receivable, Eligible
Unbilled Accounts Receivable and Eligible Foreign Accounts Receivable, in the maximum principal amount of the Facility A Commitment Amount, with a sub-limit of Five Million and No/100 Dollars ($5,000,000.00) for Letters of Credit. 
 “Facility A Commitment Amount” shall mean One Hundred Fifteen Million and No/100 Dollars ($115,000,000.00), or if such amount shall be
reduced pursuant to this Agreement, such lesser amount.” 
 (B) The language in Section (vi) of the definition of “Ineligible
Receivables” set forth in the section of the Loan Agreement titled “Certain Definitions” is hereby deleted in its entirety and replaced with the words “unbilled Receivables that do not constitute Eligible Unbilled Accounts
Receivable”. 
 4. Additional Definitions. 
 The following definition of “Eligible Unbilled Accounts Receivable” is hereby added in its proper alphabetical order to the section of the Loan Agreement titled “Certain Definitions”: 

““Eligible Unbilled Accounts Receivable” shall mean all Receivables arising from work actually performed by any Borrower
pursuant to a Government Contract or Government Subcontract which (a) are eligible to be billed to the Government or Prime Contractor (as applicable) in accordance with the applicable Government Contract or Government Subcontract (as
applicable) within thirty (30) days of the “as of” date of the applicable Borrowing Base/Non-Default Certificate (with no additional performance required by any person, and no condition to payment by the Government or Prime Contractor
(as applicable), other than receipt of an appropriate invoice); (b) have not been billed to the Government or Prime Contractor (as applicable) solely as a result of timing differences between the date the revenue is recognized on such
Borrower’s books and the date the invoice is actually rendered; (c) may, in accordance with GAAP, be included as current assets of such Borrower, even though such amounts have not been billed to the Government or Prime Contractor (as
applicable); and (d) are not Ineligible Receivables.” 
  

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 5. Borrowing Base Amendment. Section 1.3 of the Loan Agreement is hereby deleted in its
entirety and replaced with the following: 
 “1.3. Borrowing Base and Maximum Advance. Notwithstanding any term or
provision of this Agreement or any other Loan Document to the contrary, it is understood and agreed that in no event whatsoever shall the Lenders (including the Swing Line Lender) be obligated to advance any amount or issue any Letter of Credit
hereunder if such advance or the issuance of such Letter of Credit would cause the aggregate amount of outstanding Loans (including Swing Line Outstandings), plus the face amount of all outstanding Letters of Credit, to exceed the following amounts:

  

	 	(a)	as to Facility A, the lesser of: 

  

	 	(i)	the Facility A Commitment Amount; or 

  

	 	(ii)	the aggregate of (the “Maximum Borrowing Base”): 

  

	 	A.	ninety percent (90%) of Eligible Billed Government Accounts Receivable; plus 

  

	 	B.	eighty percent (80%) of Eligible Billed Commercial Accounts Receivable; plus 

  

	 	C.	the lesser of (i) sixty percent (60%) of Eligible Foreign Accounts Receivable, and (ii) Three Million and No/100 Dollars ($3,000,000.00); plus

  

	 	D.	fifty percent (50%) of Eligible Unbilled Accounts Receivable; and 

  

	 	(b)	as to the Swing Line Facility, the Swing Line Commitment Amount. 

 All determinations regarding whether any Receivable constitutes an Eligible Billed Government Account Receivable, Eligible Billed Commercial Account Receivable, Eligible Unbilled Account Receivable or Eligible Foreign Account Receivable
shall be made by the Agent, from time to time, in its sole and absolute discretion. 
 If at any time the outstanding principal balance of
Facility A (including the maximum aggregate face amount of all outstanding Letters of Credit, plus Swing Line Outstandings) shall exceed the lesser of (i) the Facility A Commitment Amount, and (ii) the Maximum Borrowing Base (such excess,
in either case, being referred to herein as a “Borrowing Base Deficiency”), then the Borrowers 

  

 4 

 
shall immediately make a principal payment in the amount of the Borrowing Base Deficiency.” 
 6. Temporary Allowance for Overadvances. Notwithstanding anything to the contrary set forth in Section 1.3 of the Loan Agreement, so long as
no Event of Default shall have occurred and be continuing, and no act, event or condition shall have occurred and be continuing which with notice or the lapse of time, or both shall constitute an Event of Default, and subject to satisfaction of all
other terms and conditions for advances set forth in the Loan Agreement, the Borrowers may obtain over-advances of the proceeds of Facility A as follows: (i) from the date hereof through and including December 31, 2007, up to the lesser of
(a) the Facility A Commitment Amount and (b) the sum of the Maximum Borrowing Base, plus Twenty Million and No/100 Dollars ($20,000,000.00); and (ii) from January 1, 2008 through and including March 31, 2008, up to
the lesser of (a) the Facility A Commitment Amount and (b) the sum of the Maximum Borrowing Base, plus Ten Million and No/100 Dollars ($10,000,000.00). No overadvance shall be permitted after March 31, 2008, and any and all
over-advances in excess of the limits set forth in this paragraph (including, without limitation, any over-advance existing or arising after March 31, 2008) shall constitute a Borrowing Base Deficiency, and the Borrowers shall immediately make
a principal payment in the amount of such Borrowing Base Deficiency. 
 7. Acquisition Consent. The Agent and the Lenders hereby
(a) consent to the acquisition by the Primary Operating Company of all of the issued and outstanding capital stock of Simat Parent, and (b) acknowledge that such acquisition shall not count against the dollar basket with respect to any
Permitted Acquisition set forth in Section 7.1(d)(ii)(H) of the Loan Agreement, subject to the terms, covenants, agreements and conditions set forth in this Modification, including without limitation, the following: 
 (i) The Primary Operating Company shall have acquired all of the issued and outstanding capital stock of Simat Parent (and Simat Parent shall own all
issued and outstanding equity interests of its subsidiaries), free and clear of all liens, claims, encumbrances and any other restrictions or limitations on transfer thereof (other than Permitted Liens), and the Simat Acquisition shall have been
consummated in accordance with the Simat Acquisition Agreement, subject to the grant of any waivers thereunder or modifications thereto (a copy of which shall be provided to the Agent and its counsel prior to the Borrowers’ use of any Loan
proceeds for the Simat Acquisition); 
 (ii) Simultaneously with the Simat Acquisition, Simat and each of its subsidiaries (each a
“Simat Entity” and collectively, the “Simat Entities”) shall have become joined to the Loan Agreement, the Notes and the other Loan Documents as a “Borrower” or “Maker” thereunder (as applicable)
by executing this Modification and all other documents, instruments and agreements requested by the Agent and the Lenders in connection therewith; 
 (iii) the Primary Operating Company shall have delivered to the Agent a Borrowing Base/Non-Default Certificate evidencing a minimum availability under Facility A of at least Fifteen Million and No/100 Dollars ($15,000,000.00) as of the date
of funding of the Simat Acquisition; 
 (iv) The Borrowers shall have delivered to the Agent and its counsel, in form and substance
satisfactory to the Agent and its counsel in all respects, each of the following items: 
 (A) a true, correct and complete copy of the
fully executed Simat Acquisition Agreement, together with all schedules and exhibits attached thereto and/or referenced therein and all other documents, instruments and agreements executed, issued and/or delivered in connection with the Simat
Acquisition; 
 (B) the articles of incorporation, certificate of formation (or comparable formation documents) of each Simat Entity,
together with all amendments thereto, recently certified by the applicable governmental authority of the jurisdiction of organization or incorporation; 
  

 5 

 (C) the by-laws or operating agreements of each Simat Entity, together with all amendments thereto,
recently certified by a duly authorized corporate officer of such Simat Entity; 
 (D) corporate resolutions of the board of directors (or
similar governing body) of each Simat Entity, authorizing the execution and delivery of this Modification and related agreements, and the performance of the transactions contemplated hereby, together with an incumbency certificate, certified by a
duly authorized corporate officer of such Simat Entity; 
 (E) a recent good standing certificate issued by the jurisdiction of formation or
incorporation of each Simat Entity, together with recent foreign qualification certificates issued by the comparable state or country office where the nature of such Simat Entity’s business requires such Simat Entity to be qualified to do
business in such state or country; 
 (F) recent UCC, judgment, pending litigation, bankruptcy and tax lien search results of each Simat
Entity for each jurisdiction (county and state) where any assets of such Simat Entity having a book value in excess of One Hundred Thousand and No/100 Dollars ($100,000.00) are located, and where such Simat Entity is organized, together with recent
UCC search results for each domestic Borrower from its jurisdiction of organization or incorporation brought down from April 30, 2007; 
 (G) a duly executed and delivered joinder to contribution agreement from each Simat Entity; 
 (H) a pro forma quarterly covenant
compliance/non-default certificate in the form attached as Exhibit 5 to the Loan Agreement, reporting results for the quarter ending September 30, 2007; 
 (I) duly executed and delivered documentation relating to Collateral located in the United Kingdom and with respect to such Simat Entity’s execution and delivery of this Modification, the performance by such
Simat Entity of all transactions contemplated hereby (including, without limitation, the joinder of such Simat Entity), the consummation of the Simat Acquisition and such other matters as the Agent or its counsel may require; 
 (J) with respect to each Simat Entity that is incorporated, formed or organized within the United States, one or more opinions of counsel with respect
to each such Simat Entity’s execution and delivery of this Modification, the performance by each such Simat Entity of all transactions contemplated hereby (including, without limitation, the joinder of each such Simat Entity), the consummation
of the Simat Acquisition and such other matters as the Agent or its counsel may require; and 
 (K) evidence of insurance and related
certificates, including but not limited to, fire, hazard, extended coverage, product and other liability, workmen’s compensation, business interruption, umbrella and key man insurance, in form and substance satisfactory to the Agent and its
counsel in all respects. 
 (v) The Agent, for itself and for the ratable benefit of the Lenders, shall have been granted a valid, binding
and enforceable first priority perfected lien and security interest (subject only to Permitted Liens) in and to (a) all assets of each Simat Entity (excepting only a sixty-five percent (65%) interest in SH&E Limited
(“SH&E”), a company organized under the laws of England and Wales); and (b) all of the issued and outstanding capital stock or limited liability company interests (as applicable) of each Simat Entity (excepting only a sixty-five
percent (65%) interest in SH&E). In connection therewith, the Agent shall have received duly executed, undated stock/interest powers and original stock certificates or membership certificates (if any); and 
 (vi) Not later than the first anniversary of the date hereof, the Borrowers shall cause all primary cash collection accounts, other than accounts located
in the United Kingdom (each, a “Primary Cash Collection Account”) of the Simat Entities to be maintained with the Agent, and all other primary 

  

 6 

 
bank accounts (each, a “Primary Bank Account” and together with the Primary Cash Collection Accounts, each a “Covered
Account” and collectively, the “Covered Accounts”) of the Simat Entities to be maintained with a Lender. Within ninety (90) days of the date hereof, the Borrowers shall cause any third party depository institution
maintaining a Primary Cash Collection Account of a Simat Entity, to enter into a wire transfer arrangement with respect to such Primary Cash Collection Account, in form and substance reasonably satisfactory to the Agent; provided, however, that
(a) in all events, all Covered Accounts shall be maintained solely with the Agent or a Lender (as applicable) not later than the first anniversary of the date hereof, and (b) this Section shall not require any Simat Entity to transfer any
Covered Account that would not otherwise be covered by Section 6.8 of the Loan Agreement; and provided, further, that this Section shall not be construed to require any Simat Entity to take or omit to take any action or transfer any Covered
Account (individually and collectively, the “Excluded Bank Accounts”) that would violate any applicable laws or regulations (including, without limitation, ERISA). It is expressly understood and agreed that for so long as any Simat
Entity shall maintain any Covered Account (other than the Excluded Bank Accounts) with any depository institution other than the Agent or a Lender, then such Covered Account: (a) shall be used solely for the deposit/receipt of cash, checks and
other remittances owing to such Simat Entity from time to time; (b) shall be at all times, free and clear of any and all liens, claims and encumbrances (other than the security interest of the Agent granted hereby); and (c) shall secure
the Obligations. It is understood and agreed that the limits described in Article 8 of the Loan Agreement and the definition of Permitted Foreign Bank Accounts set forth in the “Certain Definitions” section of the Loan Agreement shall be
applicable to any Simat Entity bank accounts located in the United Kingdom or otherwise outside of the United States. 
 8. Joinder.
Each Simat Entity is hereby joined as a party to and agrees to be bound by the terms and conditions of the Loan Agreement, the Notes and the other Loan Documents, to the same extent as if it were an original signatory thereto and originally named
therein as a Borrower or Maker (as the case may be). Each Simat Entity hereby makes all of the representations and warranties set forth in the Loan Agreement (as modified or supplemented hereby) and each other Loan Document to which more than one
(1) Borrower is a party thereto and grants to the Agent, for the ratable benefit of the Lenders, a valid and enforceable first priority security interest in and to all of its assets constituting Collateral, free and clear of all liens, claims
and encumbrances (other than any Permitted Liens). Each Simat Entity further acknowledges and agrees that it shall be jointly and severally liable for the performance of any and all past, present and future obligations of the Borrower(s) in
connection with any of the Note(s), the Loan Agreement and/or the other Loan Documents; it being understood and agreed that any and all references in the Note(s), the Loan Agreement and/or the other Loan Documents to “the Borrower” shall
mean each Simat Entity, individually and/or collectively with all other Borrowers. 
 9. Exhibit Substitutions. Schedule
1, Exhibit 4 and Exhibit 7 attached to the Loan Agreement are hereby deleted in their entirety and Schedule 1, Exhibit 4 and Exhibit
7 attached hereto substituted in lieu thereof. 
 10. Updated Schedules. The Borrowers shall have delivered to the Agent
and its counsel, in form and substance satisfactory to the Agent and its counsel in all respects, updated schedules to the Loan Agreement, all of which shall be attached and be deemed a part of the Loan Agreement. 
 11. Expenses. The Borrowers shall have paid to the Agent (for the ratable benefit of the Lenders) in immediately available funds, an upfront fee
in the amount of Thirty Thousand and No/100 Dollars ($30,000.00), which, each of the Borrowers acknowledge, has been fully earned as of the date hereof. The Borrowers shall also pay all of the Agent’s costs and expenses associated with this
Modification and the transactions referenced herein or contemplated hereby, including, without limitation, the Agent’s reasonable legal fees and expenses. 
  

 7 

 12. Conditions Precedent. As a condition precedent to the effectiveness of this Modification, the
Agent and its counsel shall have received the following, each in form and substance satisfactory to the Agent and its counsel in all respects: (a) a fully executed copy of this Modification; and (b) such other documents, instruments,
certificates of good standing, corporate resolutions, limited liability company consents, UCC financing statements, opinions, certifications, schedules to be attached to the Loan Agreement and agreements as the Agent may reasonably request, each in
such form and content and from such parties as the Agent shall require. 
 13. Miscellaneous. 
 (i) Each Borrower hereby represents, warrants, acknowledges and agrees that as of the date hereof (i) there are no set-offs, defenses, deductions or
counterclaims against and no defaults under any of the Notes, the Loan Agreement or any other Loan Document; (ii) no act, event or condition has occurred which, with notice or the passage of time, or both, would constitute a default under any
of the Notes, the Loan Agreement or any other Loan Document; (iii) all of the representations and warranties of the Borrowers contained in the Loan Agreement are true and correct as of the date hereof (except to the extent that such
representations and warranties expressly relate solely to an earlier date), unless the Borrowers are unable to remake and redate any such representation or warranty, in which case the Borrowers have previously disclosed the same to the Agent and the
Lenders in writing, and such inability does not constitute or give rise to an Event of Default; (iv) all schedules attached to the Loan Agreement with respect to any particular representation and warranty of the Borrowers set forth in the Loan
Agreement (as modified) remain true, accurate and complete; (v) all accrued and unpaid interest and fees payable with respect to the Loan have been paid; and (vi) there has been no material adverse change in the business, property or
condition (financial or otherwise) of the Borrowers since the date of the most recent financial statements listed on Schedule 5.3. 
 (ii) The Borrowers, and their respective representatives, successors and assigns, hereby jointly and severally, knowingly and voluntarily RELEASE, DISCHARGE, and FOREVER WAIVE and RELINQUISH any and all claims,
demands, obligations, liabilities, defenses, affirmative defenses, setoffs, counterclaims, actions, and causes of action of whatsoever kind or nature, whether known or unknown, which they have, may have, or might have or may assert now or in the
future against the Agent and/or the Lenders directly or indirectly, arising out of, based upon, or in any manner connected with any transaction, event, circumstance, action, failure to act, or occurrence of any sort or type, in each case related to,
arising from or in connection with the Loan, whether known or unknown, and which occurred, existed, was taken, permitted, or begun prior to the date hereof (including, without limitation, any claim, demand, obligation, liability, defense,
counterclaim, action or cause of action relating to or arising from the grant by the Borrowers to the Agent and/or the Lenders of a security interest in or encumbrance on collateral that is, was or may be subject to, or an agreement by which the
Borrowers are bound and which contains, a prohibition on further mortgaging or encumbering the same). The Borrowers hereby acknowledge and agree that the execution of this Modification by the Agent and the Lenders shall not constitute an
acknowledgment of or an admission by the Agent and/or the Lenders of the existence of any such claims or of liability for any matter or precedent upon which any liability may be asserted. 
 (iii) Except as expressly set forth herein, nothing contained in this Modification is intended to or shall otherwise act to nullify, discharge, or
release any obligation incurred in connection with the Notes, the Loan Agreement and/or the other Loan Documents or to waive or release any collateral given by any Borrower to secure the Notes, nor shall this Modification be deemed or considered to
operate as a novation of the Notes, the Loan Agreement or the other Loan Documents. Except to the extent of any express conflict with this Modification or except as otherwise expressly contemplated by this Modification, all of the terms and
conditions of the Notes, the Loan Agreement and the other Loan 

  

 8 

 
Documents shall remain in full force and effect, and the same are hereby expressly approved, ratified and confirmed. In the event of any express conflict
between the terms and conditions of the Notes, the Loan Agreement or the other Loan Documents and this Modification, this Modification shall be controlling and the terms and conditions of such other documents shall be deemed to be amended to conform
with this Modification. 
 (iv) If any term, condition, or any part thereof, of this Modification, the Loan Agreement or of the other Loan
Documents shall for any reason be found or held to be invalid or unenforceable by any court or governmental agency of competent jurisdiction, such invalidity or unenforceability shall not affect the remainder of such term, provision or condition nor
any other term, provision, or condition of this Modification, the Loan Agreement and the other Loan Documents, and this Modification, the Loan Agreement and the other Loan Documents shall survive and be construed as if such invalid or unenforceable
term, provision or condition had not been contained therein. 
 (v) Each Borrower acknowledges that, at all times prior to and through the
date hereof, the Agent and the Lenders have acted in good faith and have conducted themselves in a commercially reasonable manner in their relationship with such Borrower in connection with this Modification and in connection with the obligations of
the Borrowers to the Agent and the Lenders under the Loan; the Borrowers hereby waiving and releasing any claims to the contrary. 
 (vi)
Each Borrower, Lender and the Agent hereby acknowledges and agrees that, from and after the date hereof, all references to the “Loan Agreement” set forth in any Loan Document shall mean the Loan Agreement, as modified pursuant to this
Modification and any other modification of the Loan Agreement dated prior to the date hereof. 
 (vii) Each Borrower hereby represents and
warrants that, as of the date hereof, such Borrower is indebted to the Lenders in respect of the amounts due and owing under the Notes, all such amounts remain outstanding and unpaid and all such amounts are payable in full, without offset,
defenses, deduction or counterclaim of any kind or character whatsoever. 
 (viii) Each Borrower acknowledges (a) that it has
participated in the negotiation of this Modification, and no provision of this Modification shall be construed against or interpreted to the disadvantage of any party hereto by any court or other governmental or judicial authority by reason of such
party having or being deemed to have structured, dictated or drafted such provision; (b) that it has had access to an attorney of its choosing in the negotiation of the terms of and in the preparation and execution of this Modification, and it
has had the opportunity to review, analyze, and discuss with its counsel this Modification, and the underlying factual matters relevant to this Modification, for a sufficient period of time prior to the execution and delivery hereof; (c) that
all of the terms of this Modification were negotiated at arm’s length; (d) that this Modification was prepared and executed without fraud, duress, undue influence, or coercion of any kind exerted by any of the parties upon the others; and
(e) that the execution and delivery of this Modification is the free and voluntary act of such Borrower. 
 (ix) This Modification shall
be governed by the laws of the Commonwealth of Virginia (without regard to conflict of laws provisions) and shall be binding upon and inure to the benefit of the parties hereto and their respective successors and assigns. 
 (x) This Modification may be executed in any number of counterparts, each of which shall be deemed an original and all of which together shall be deemed
one and the same instrument. Signature pages may be exchanged by facsimile or electronic mail and each party hereto agrees to be bound by its facsimile signature and/or pdf signature. 
  

 9 

 IN WITNESS WHEREOF, the undersigned have executed this Modification as of the date first
above written. 
  

									
		 		 	BORROWERS:
			
	 ATTEST:
 [Corporate Seal]
	 		 	 ICF INTERNATIONAL, INC., a
 Delaware
corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 ICF CONSULTING GROUP, INC., a
 Delaware
corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	WITNESS:	 		 	 ICF CONSULTING LIMITED, a private limited
 company organized under the laws of England and Wales

					
	By:	 	/s/ Susan Wolf	 		 	By:	 	/s/ Kenneth Kolsky
	Name:	 	Susan Wolf	 		 	Name:	 	Kenneth Kolsky
		 		 		 	Title:	 	Director
		 		 	
	ATTEST:	 		 	 COMMENTWORKS.COM COMPANY, L.L.C. a
 Delaware
limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 THE K.S. CRUMP GROUP, L.L.C., a
 Delaware
limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF INCORPORATED, L.L.C., a
 Delaware limited
liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer

  

 10 

									
	ATTEST:	 		 	 ICF INFORMATION TECHNOLOGY, L.L.C., a
 Delaware limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF RESOURCES, L.L.C., a
 Delaware limited
liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	SYSTEMS APPLICATIONS INTERNATIONAL, L.L.C., a Delaware limited liability company
					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF ASSOCIATES, L.L.C., a
 Delaware limited
liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF SERVICES COMPANY, L.L.C., a
 Delaware
limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF CONSULTING SERVICES, L.L.C., a
 Delaware
limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer

  

 11 

									
	ATTEST:	 		 	 ICF EMERGENCY MANAGEMENT SERVICES,
 LLC, a
Delaware limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
	Title:	 	General Counsel	 		 	Title:	 	Treasurer
		 		 	
	WITNESS:	 		 	 ICF CONSULTING PTY LTD, an Australian
 corporation

					
	By:	 	/s/ Susan Wolf	 		 	By:	 	/s/ Kenneth B. Kolsky
	Name:	 	Susan Wolf	 		 	Name:	 	Kenneth B. Kolsky
		 		 		 	Title:	 	Director
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 ICF CONSULTING CANADA, INC., a Canadian
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
	Title:	 	General Counsel	 		 	Title:	 	Treasurer
		 		 	
	WITNESS:	 		 	ICF/EKO, a Russian corporation
					
	By:	 	/s/ Susan Wolf	 		 	By:	 	/s/ Kenneth B. Kolsky
	Name:	 	Susan Wolf	 		 	Name:	 	Kenneth B. Kolsky
		 		 		 	Title:	 	Director
		 		 	
	WITNESS/ATTEST:	 		 	ICF CONSULTORIA DO BRASIL LTDA., a
	By:	 	/s/ Susan Wolf	 		 	Brazilian limited liability company
	Name:	 	Susan Wolf	 		 	
					
		 		 		 	By:	 	 ICF CONSULTING GROUP, INC., a
 Delaware
corporation

		 		 	
		 		 		 		 	
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	 /s/ Terrance McGovern

	 Name:
	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
	Title:	 	General Counsel	 		 	Title:	 	Treasurer
					
		 		 		 	By:	 	 ICF CONSULTING SERVICES, L.L.C., a
 Delaware limited
liability company

		 		 		 		 	
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	 /s/ Terrance McGovern

	 Name:
	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
	Title:	 	General Counsel	 		 	Title:	 	Treasurer

  

 12 

									
	 ATTEST:
 [Corporate Seal]
	 		 	 SYNERGY, INC., a District of Columbia
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 SIMULATION SUPPORT, INC., a Virginia
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF BIOMEDICAL CONSULTING, LLC, a
 Delaware
limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 ICF PROGRAM SERVICES, L.L.C., a Delaware
 limited liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	 Name:
	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 CALIBER ASSOCIATES, INC., a Virginia
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	 Name:
	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 COLLINS MANAGEMENT CONSULTING, INC.,
 a
Virginia corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	 Name:
	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer

  

 13 

									
	 ATTEST:
 [Corporate Seal]
	 		 	FRIED & SHER, INC., a Virginia corporation
					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 ADVANCED PERFORMANCE CONSULTING
 GROUP, INC.,
a Maryland corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 ENERGY AND ENVIRONMENTAL
 ANALYSIS,
INCORPORATED, a Virginia
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 Z-TECH CORPORATION, a Maryland
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 SIMAT, HELLIESEN & EICHNER, INC., a
 Delaware corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer

  

 14 

									
			
	 ATTEST:
 [Corporate Seal]
	 		 	 SH&E LIMITED, a company organized
 under
the laws of England and Wales

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	 ATTEST:
 [Corporate Seal]
	 		 	 KURTH & CO., INC., a Nevada
 corporation

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer
		 		 	
	ATTEST:	 		 	 THE CENTER FOR AIRPORT
 MANAGEMENT LLC, an
Oregon limited
 liability company

					
	By:	 	/s/ Judith B. Kassel	 		 	By:	 	/s/ Terrance McGovern
	Name:	 	Judith B. Kassel	 		 	Name:	 	Terrance McGovern
		 		 		 	Title:	 	Treasurer

  

 15 

									
		 		 	LENDER(S):
				
		 		 		 	CITIZENS BANK OF PENNSYLVANIA, a Pennsylvania state chartered bank
					
		 		 		 	By:	 	/s/ Leslie Grizzard
		 		 		 	Name:	 	Leslie Grizzard
		 		 		 	Title:	 	SVP
		 		 		 	
		 		 		 	 CHEVY CHASE BANK, F.S.B., a federal savings
 bank

					
		 		 		 	By:	 	/s/ R. Mark Swaak
		 		 		 	Name:	 	R. Mark Swaak
		 		 		 	Title:	 	Group Vice President
		 		 		 	
		 		 		 	 PNC BANK, NATIONAL ASSOCIATION, as
 successor-in-interest to Riggs Bank, N.A., a national
 banking association

					
		 		 		 	By:	 	/s/ Douglas T. Brown
		 		 		 	Name:	 	Douglas T. Brown
		 		 		 	Title:	 	SVP
		 		 		 	
		 		 		 	 COMMERCE BANK, N.A., a national banking
 association

					
		 		 		 	By:	 	/s/ Frank Merendino
		 		 		 	Name:	 	Frank Merendino
		 		 		 	Title:	 	Vice President
		 		 		 	
		 		 	AGENT:
				
		 		 		 	 CITIZENS BANK OF PENNSYLVANIA, a
 Pennsylvania state chartered bank, as Agent

					
		 		 		 	By:	 	/s/ Leslie Grizzard
		 		 		 	Name:	 	Leslie Grizzard
		 		 		 	Title:	 	SVP

  

 16

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00133-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00133-of-00352.parquet"}]]