2021 Top 100
53: ECS FEDERAL, LLC
| Top 100 Revenue: | $496,648,000 |
| Defense Revenue: | $301,604,000 |
| Civilian Revenue: | $195,044,000 |
| 2020 Revenue: | $3.5 billion |
| 2020 Earnings: | $200.3 million |
| 2019 Revenue: | from parent: $3.9 billion |
| 2019 Earnings: | $174.7 million |
| Number of employees: | N/A |
| Headquarters: | Fairfax, Virginia |
| Website: | http://ecstech.com/ |
| Leadership: | N/A |
| Ticker: | ASGN |
| Lines of business: | N/A |
| Major customers: | N/A |
| Major contracts/projects: | N/A |