2021 Top 100
14: AMENTUM
| Top 100 Revenue: | $2,711,391,000 |
| Defense Revenue: | $1,600,098,000 |
| Civilian Revenue: | $1,111,293,000 |
| 2020 Revenue: | N/A |
| 2020 Earnings: | N/A |
| 2019 Revenue: | $3.7 billion |
| 2019 Earnings: | $200 million operating income |
| Number of employees: | N/A |
| Headquarters: | Germantown, Maryland |
| Website: | https://www.amentum.com/ |
| Leadership: | N/A |
| Ticker: | Private |
| Lines of business: | N/A |
| Major customers: | N/A |
| Major contracts/projects: | N/A |