On May 17, 2023, ICF International, Inc. (the “Company” or “ICF”) and its direct, wholly owned subsidiary, ICF Consulting Group, Inc. (jointly the “Borrowers”), entered into the First Amendment (the “First Amendment”) to the Amended and Restated Credit Agreement (the “Credit Agreement”) dated May 6, 2022 by and among the Borrowers, PNC Bank, National Association (as Administrative Agent, Swingline Loan Lender and Issuing Lender), PNC Capital Markets LLC (as Joint Lead Arranger and Sole Bookrunner), BOFA Securities, Inc., TD Securities (USA) LLC, Wells Fargo Securities, LLC and Citizens Bank, N.A. (as Joint Lead Arrangers and Co-Syndication Agents), and other guarantors and lenders which are party thereto. Capitalized terms used but not defined herein are defined in the Credit Agreement.