| 1 | LEIDOS, INC. | $1,019,274,280 | 4 | $254,818,570 | Nov 01, 2023 | Department of Energy |
| 2 | AMAZON WEB SERVICES, INC. | $858,369,801 | 56 | $15,328,032 | Jul 01, 2026 | Department of Defense |
| 3 | INTERNATIONAL BUSINESS MACHINES CORPORATION | $792,695,929 | 12 | $66,057,994 | Sep 01, 2025 | Department of Veterans Af… |
| 4 | GENERAL DYNAMICS INFORMATION TECHNOLOGY, IN… | $749,233,830 | 69 | $10,858,461 | Aug 06, 2025 | Department of Transportat… |
| 5 | ADVANTAGED SOLUTIONS, LLC | $748,823,889 | 5 | $149,764,778 | Sep 30, 2025 | Department of Defense |
| 6 | PERATON ENTERPRISE SOLUTIONS LLC | $600,874,577 | 13 | $46,221,121 | Mar 02, 2023 | General Services Administ… |
| 7 | WESTAT, INC. | $367,942,823 | 6 | $61,323,804 | Apr 13, 2024 | Department of Health and … |
| 8 | GOVCIO, LLC | $353,367,481 | 1 | $353,367,481 | Sep 19, 2022 | Department of Veterans Af… |
| 9 | MICROSOFT CORPORATION | $335,582,741 | 27 | $12,428,990 | Jan 23, 2026 | Department of Defense |
| 10 | PERATON TECHNOLOGY SERVICES INC. | $321,882,109 | 41 | $7,850,783 | Aug 01, 2026 | Department of Homeland Se… |
| 11 | COMPANION DATA SERVICES LLC | $319,926,618 | 3 | $106,642,206 | Sep 23, 2013 | Department of Health and … |
| 12 | EAGLE HARBOR, LLC | $303,328,292 | 5 | $60,665,658 | Feb 01, 2024 | Department of Justice |
