2011 Top 100
64: ICF International Inc.
| Top 100 Revenue: | $331,879,000 |
| Defense Revenue: | $19,100,000 |
| Civilian Revenue: | $312,779,000 |
| 2010 Revenue: | $764.7 million |
| 2010 Earnings: | $27.2 million |
| 2009 Revenue: | $674.4 million |
| 2009 Earnings: | $22.4 million |
| Number of employees: | 3,700 |
| Headquarters: | Fairfax, Va. |
| Website: | www.icfi.com |
| Leadership: | Sudhakar Kesavan, chairman and CEO |
| Ticker: | ICFI |
| Lines of business: | Climate change, defense, energy, environment, health, homeland security, social programs and transportation |
| Major customers: | Army, Coast Guard, Housing and Urban Development Department, Centers for Disease Control, Energy Department, Office of National Drug Control Policy, Health and Human Services Department and Census Bureau |
| Major contracts/projects: | N/A |