Adjusted EBITDA Margin on Service Revenue¹ Was 13.5% Record Contract Awards of $596 Million up 67%; TTM Contract Awards Were $2.2 Billion For a Book-to-Bill Ratio of 1.44 —Expects Full Year 2021 Service Revenue, EBITDA ¹ and EPS to be at Upper End of the Guidance Ranges— ICF (NASDAQ:ICFI), a global consulting and digital services provider, reported results for the first quarter ended March 31, 2021. Commenting on the results, John Wasson, chairman and chief executive officer, said, "This was an excellent quarter for ICF, underscoring our positioning in high-growth markets within both the government and commercial arenas, and representing efficient execution on client programs. Additionally, this was another quarter of robust contract awards that indicate how well ICF's domain expertise and implementation capabilities are aligned with market demand.