2018 Top 100
33: Alion Science & Technology
| Top 100 Revenue: | $764,911,000 |
| Defense Revenue: | $671,375,000 |
| Civilian Revenue: | $93,536,000 |
| 2017 Revenue: | N/A |
| 2017 Earnings: | N/A |
| 2016 Revenue: | N/A |
| 2016 Earnings: | N/A |
| Number of employees: | N/A |
| Headquarters: | McLean, Va. |
| Website: | http://www.alionscience.com |
| Leadership: | N/A |
| Ticker: | N/A |
| Lines of business: | N/A |
| Major customers: | N/A |
| Major contracts/projects: | N/A |