2021 Top 100
55: ICF International Inc.
| Top 100 Revenue: | $489,598,000 |
| Defense Revenue: | $59,582,000 |
| Civilian Revenue: | $430,016,000 |
| 2020 Revenue: | N/A |
| 2020 Earnings: | N/A |
| 2019 Revenue: | $1.5 billion |
| 2019 Earnings: | $68.9 million |
| Number of employees: | N/A |
| Headquarters: | Fairfax, Va. |
| Website: | www.icfi.com |
| Leadership: | N/A |
| Ticker: | ICFI |
| Lines of business: | N/A |
| Major customers: | N/A |
| Major contracts/projects: | N/A |