EXECUTION VERSION 1006890234v8 ASSUMPTION AGREEMENT, dated as of November 5, 2021, made by Liberty IT Solutions, LLC, a Delaware limited liability company (the “Additional Grantor”), in favor of Bank of America, N.A., as collateral agent (in such capacity, the “Collateral Agent”) for the banks and other financial institutions or entities (the “Lenders”) parties to the Credit Agreement referred to below. All capitalized terms not defined herein shall have the meaning ascribed to them in such Credit Agreement. W I T N E S S E T H : WHEREAS, Booz Allen Hamilton Inc., a Delaware corporation (the “Borrower”), the several banks and other financial institutions or entities from time to time parties to the Credit Agreement (the “Lenders”), Bank of America, N.A., as Collateral Agent (in such capacity, the “Collateral Agent”) and Administrative Agent, Credit Suisse Securities (USA) LLC, as Syndication Agent, Barclays Bank PLC, Citigroup Global Markets Inc., HSBC Securities (USA) Inc., J.P. Morgan Securities LLC, Morgan Stanley Senior Funding, Inc., Sumitomo Mitsui Banking Corporation and The Bank of Tokyo-Mitsubishi UFJ, Ltd., as Co-Documentation Agents, as Documentation Agents, Bank of America, N.A., as Issuing Lender, Merrill Lynch, Pierce, Fenner & Smith Incorporated and Credit Suisse Securities (USA) LLC as Joint Lead Arrangers and Merrill Lynch, Pierce, Fenner & Smith Incorporated, Credit Suisse Securities (USA) LLC, Barclays Capital, Citigroup Global Markets Inc., HSBC Securities (USA) Inc., J.P. Morgan Securities LLC, Morgan Stanley Senior Funding, Inc. and Sumitomo Mitsui Banking Corporation as Joint Bookrunners have entered into that certain Credit Agreement, dated as of July 31, 2012, as amended by the First Amendment to the Credit Agreement dated as of August 16, 2013, Second Amendment to the Credit Agreement dated as of May 7, 2014, Third Amendment to the Credit Agreement dated as of July 13, 2016, Fourth Amendment to the Credit Agreement dated as of February 6, 2017, Fifth Amendment to the Credit Agreement, dated as of March 7, 2018, Sixth Amendment to the Credit Agreement, dated as of July 23, 2018, Seventh Amendment to the Credit Agreement, dated as of November 26, 2019 and Eighth Amendment to the Credit Agreement, dated as of June 24, 2021 (as further amended, supplemented or otherwise modified from time to time, the “Credit Agreement”); WHEREAS, in connection with the Credit Agreement, the Borrower and certain of its Affiliates (other than the Additional Grantor) have entered into the Guarantee and Collateral Agreement, dated as of July 31, 2012 (as amended, supplemented or otherwise modified from time to time, the “Guarantee and Collateral Agreement”) in favor of the Collateral Agent for the benefit of the Administrative Agent, the Collateral Agent and the Lenders; WHEREAS, the Credit Agreement requires the Additional Grantor to become a party to the Guarantee and Collateral Agreement; and WHEREAS, the Additional Grantor has agreed to execute and deliver this Assumption Agreement in order to become a party to the Guarantee and Collateral Agreement; NOW, THEREFORE, IT IS AGREED: 1. Guarantee and Collateral Agreement. By executing and delivering this Assumption Agreement, the Additional Grantor, as provided in Section 8.14 of the Guarantee and Collateral Agreement, hereby becomes a party to the Guarantee and Collateral Agreement as
