Exhibit 99.1 NEWS RELEASE ICF Reports Second Quarter 2025 Results ―Second Quarter in Line with Expectations Led by 27% Revenue Growth in Commercial Energy― ―Margins Continue to Benefit From Favorable Mix― ―Maintains Full Year 2025 Guidance Framework with Improved Business Outlook― ―Expects a Return to Revenue and Earnings Growth in 2026― Second Quarter Highlights: RESTON, Va., July 31, 2025 — ICF (NASDAQ: ICFI), a leading global solutions and technology provider, reported results for the second quarter ende ...