ICF International (NASDAQ: ICFI) partners with government and commercial clients to deliver consulting services and technology solutions in the energy, climate change, environment, transportation, social programs, health, defense, and emergency management markets.
The firm combines passion for its work with industry expertise and innovative analytics to produce compelling results throughout the entire program life cycle, from analysis and design through implementation and improvement.

Since 1969, ICF has been serving government at all levels, major corporations, and multilateral institutions. More than 3,000 employees serve these clients worldwide.

ICF International reported gross revenue of US$727.1 million in 2007.

The firm's services are organized around seven markets:

- climate change
- defense
- energy
- environment
- homeland security
- social programs
- transportation

Within each market, the firm offers advisory and information technology services to assist clients in strategy and policy analysis, program management, project evaluation, and other services.