| 1 | LEIDOS, INC. | $1,033,917,999 | 4 | $258,479,500 | Nov 01, 2023 | Department of Energy |
| 2 | AMAZON WEB SERVICES, INC. | $965,680,665 | 61 | $15,830,831 | Sep 08, 2026 | Department of Defense |
| 3 | INTERNATIONAL BUSINESS MACHINES CORPORATION | $842,750,062 | 12 | $70,229,172 | Sep 01, 2025 | Department of Veterans Af… |
| 4 | GENERAL DYNAMICS INFORMATION TECHNOLOGY, IN… | $779,525,576 | 75 | $10,393,674 | 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 | $598,726,208 | 13 | $46,055,862 | 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 | PERATON TECHNOLOGY SERVICES INC. | $346,077,368 | 47 | $7,363,348 | Sep 08, 2026 | Department of Homeland Se… |
| 10 | MICROSOFT CORPORATION | $335,913,064 | 27 | $12,441,225 | Jan 23, 2026 | Department of Defense |
| 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 |
