Other Events On August 6, 2026, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on October 9, 2026, to stockholders of record as of the close of business on September 4, 2026. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital r…

Results of Operations and Financial Condition On August 6, 2026, ICF International, Inc. (the “Company”) announced its financial results for the second quarter ended June 30, 2026. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or…

Regulation FD Disclosure On June 25, 2026, ICF International, Inc. (the “Company”) issued a press release announcing that the Company’s Board of Directors approved a $100 million increase (the "Additional Authorization") to the Company’s existing share repurchase program, increasing the aggregate authorization under the program from $300 million to $400 million. The Company is active in the market and has repurchased approximately 435,000 shares year to date, for total consideration of $29 mi…

Results of Operations and Financial Condition On June 24, 2026, ICF International, Inc. (the “Company”) announced it will release its second quarter 2026 results on August 6, 2026, after the market closes. The Company will conduct a conference call at 4:30 p.m. Eastern Time on August 6, 2026, to discuss the results for the quarter ending June 30, 2026. Instructions on how to participate in the conference call are contained in the press release, a copy of which is attached hereto as Exhibit 99.1.

Results of Operations and Financial Condition On May 7, 2026, ICF International, Inc. (the “Company”) announced its financial results for the first quarter ended March 31, 2026. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or oth…

Other Events On May 7, 2026, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on July 10, 2026, to stockholders of record as of the close of business on June 5, 2026. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital requirement…

Entry into a Material Definitive Agreement On April 10, 2026, ICF International, Inc. (the “Company” or “ICF”) and its direct, wholly owned subsidiary, ICF Consulting Group, Inc. (jointly, the “Borrowers”), entered into an Amended and Restated Credit Agreement (the “Amended and Restated Credit Agreement”) with PNC Bank, National Association as administrative agent, BOFA Securities, Inc., and Wells Fargo Securities, LLC as the joint lead arrangers, certain other financial institutions as lende…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant The information set forth in

Results of Operations and Financial Condition On March 26, 2026, ICF International, Inc. (the “Company”) announced it will release its first quarter 2026 earnings results after the market closes on May 7, 2026. The Company will conduct a conference call at 4:30 p.m. Eastern Time on May 7, 2026, to discuss the results for the quarter ended March 31, 2026. Instructions on how to participate in the conference call are contained in the press release, a copy of which is attached hereto as Exhibit…

Results of Operations and Financial Condition On February 26, 2026, ICF International, Inc. (the “Company”) announced its financial results for the fourth quarter and full year ended December 31, 2025. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the…

Other Events On February 26, 2026, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on April 14, 2026, to stockholders of record as of the close of business on March 27, 2026. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital re…

Results of Operations and Financial Condition On January 15, 2026, ICF International, Inc. (the “Company”) announced it will release its fourth quarter and full year 2025 earnings results after the market closes on February 26, 2026. The Company will conduct a conference call at 4:30 p.m. Eastern Time on February 26, 2026, to discuss the results for the quarter. Instructions on how to participate in the conference call are contained in the press release, a copy of which is attached hereto as…

Other Events On October 30, 2025, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on January 9, 2026, to stockholders of record as of the close of business on December 5, 2025. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital…

The company temporarily reduced the annual base salaries of its named executive officers due to a government shutdown.

Results of Operations and Financial Condition On October 30, 2025, ICF International, Inc. (the “Company”) announced its financial results for the third quarter ended September 30, 2025. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”…

President — Anne Choate: Anne Choate was promoted to President, expanding her role within the company.

Results of Operations and Financial Condition On September 17, 2025, ICF International, Inc. (the “Company”) announced it will release its third quarter 2025 earnings results after the market closes on Thursday, October 30, 2025. The Company plans to host a webcast call at 4:30 p.m. Eastern time on Thursday, October 30, 2025, to discuss its financial results for the quarter. The press release containing this announcement is attached hereto as Exhibit 99.1.

Results of Operations and Financial Condition On July 31, 2025, ICF International, Inc. (the “Company”) announced its financial results for the second quarter ended June 30, 2025. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or o…

Other Events On July 31, 2025, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on October 10, 2025, to stockholders of record as of the close of business on September 5, 2025. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital r…

Results of Operations and Financial Condition On June 17, 2025, ICF International, Inc. (the “Company”) announced it will release its second quarter 2025 earnings results after the market closes on July 31, 2025. The Company will conduct a conference call at 4:30 p.m. Eastern Time on July 31, 2025, to discuss the results for the quarter ended June 30, 2025. Instructions on how to participate in the conference call are contained in the press release, a copy of which is attached hereto as Exhib…

Audit Committee Member — Ms. Angoorly: Ms. Angoorly was appointed to the Audit Committee.

Other Events On May 1, 2025, the Company's Board of Directors declared a quarterly dividend in an amount equal to $0.14 per share. This quarterly cash dividend will be paid on July 11, 2025, to stockholders of record as of the close of business on June 6, 2025. The cash dividend policy and the payment of future cash dividends under that policy will be made at the discretion of the Company's Board of Directors and will depend on earnings, operating and financial conditions, capital requirement…

Results of Operations and Financial Condition On May 1, 2025, ICF International, Inc. (the “Company”) announced its financial results for the first quarter ended March 31, 2025. The press release containing this announcement is attached hereto as Exhibit 99.1. The information contained in this report, including Exhibit 99.1, is considered to be “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or oth…

Results of Operations and Financial Condition On March 31, 2025, ICF International, Inc. (the “Company”) announced it will release its first quarter 2025 earnings results after the market closes on May 1, 2025. The Company will conduct a conference call at 4:30 p.m. Eastern Time on May 1, 2025, to discuss the results for the quarter ended March 31, 2025. Instructions on how to participate in the conference call are contained in the press release, a copy of which is attached hereto as Exhibit…

Director — Ms. Caroline Angoorly: The company appointed Ms. Caroline Angoorly to the Board of Directors.