| 1 | HUMANA GOVERNMENT BUSINESS INC | $59,572,820,983 | 2 | $29,786,410,492 | Feb 01, 2023 | Department of Defense |
| 2 | HEALTH NET FEDERAL SERVICES, LLC | $23,482,808,066 | 1 | $23,482,808,066 | Aug 01, 2016 | Department of Defense |
| 3 | OPTUM PUBLIC SECTOR SOLUTIONS, INC. | $13,139,330,573 | 18 | $729,962,810 | Mar 01, 2026 | Department of Veterans Af… |
| 4 | TRIWEST HEALTHCARE ALLIANCE CORP | $12,667,253,131 | 6 | $2,111,208,855 | May 01, 2026 | Department of Veterans Af… |
| 5 | EVERNORTH FEDERAL SERVICES INC | $2,383,988,764 | 1 | $2,383,988,764 | Sep 23, 2021 | Department of Defense |
| 6 | NOVITAS SOLUTIONS, INC. | $2,327,741,041 | 4 | $581,935,260 | Jul 01, 2026 | Department of Health and … |
| 7 | UNITED CONCORDIA COMPANIES, INC. | $1,722,892,643 | 7 | $246,127,520 | Feb 25, 2026 | Department of Defense |
| 8 | THE JOHNS HOPKINS MEDICAL SERVICES CORPORAT… | $1,480,800,000 | 1 | $1,480,800,000 | Oct 01, 2023 | Department of Defense |
| 9 | MARTINS POINT HEALTH CARE INC | $1,292,986,774 | 1 | $1,292,986,774 | Oct 01, 2023 | Department of Defense |
| 10 | NATIONAL GOVERNMENT SERVICES, INC. | $950,856,645 | 2 | $475,428,322 | Jan 01, 2022 | Department of Health and … |
| 11 | CGS ADMINISTRATORS, LLC | $867,803,464 | 4 | $216,950,866 | Jan 01, 2024 | Department of Health and … |
| 12 | PALMETTO GBA, LLC | $778,177,512 | 2 | $389,088,756 | Sep 01, 2024 | Department of Health and … |
