| 1 | HUMANA GOVERNMENT BUSINESS INC | $80,023,948,080 | 3 | $26,674,649,360 | Feb 01, 2023 | Department of Defense |
| 2 | HEALTH NET FEDERAL SERVICES, LLC | $42,897,598,009 | 2 | $21,448,799,005 | Aug 01, 2016 | Department of Defense |
| 3 | OPTUM PUBLIC SECTOR SOLUTIONS, INC. | $38,702,161,320 | 57 | $678,985,286 | Jun 01, 2026 | Department of Veterans Af… |
| 4 | TRIWEST HEALTHCARE ALLIANCE CORP | $24,916,644,393 | 21 | $1,186,506,876 | Jul 01, 2026 | Department of Veterans Af… |
| 5 | UNITEDHEALTH MILITARY & VETERANS SERVICES, … | $13,145,560,374 | 1 | $13,145,560,374 | Mar 20, 2012 | Department of Defense |
| 6 | THE JOHNS HOPKINS MEDICAL SERVICES CORPORAT… | $5,660,644,458 | 2 | $2,830,322,229 | Oct 01, 2023 | Department of Defense |
| 7 | MARTINS POINT HEALTH CARE INC | $4,881,905,184 | 2 | $2,440,952,592 | Oct 01, 2023 | Department of Defense |
| 8 | EXPRESS SCRIPTS INC | $3,128,400,885 | 6 | $521,400,148 | Oct 26, 2022 | Department of Defense |
| 9 | UNITED CONCORDIA COMPANIES, INC. | $3,026,029,578 | 13 | $232,771,506 | Feb 25, 2026 | Department of Defense |
| 10 | EVERNORTH FEDERAL SERVICES INC | $2,383,988,764 | 1 | $2,383,988,764 | Sep 23, 2021 | Department of Defense |
| 11 | NOVITAS SOLUTIONS, INC. | $2,327,741,041 | 4 | $581,935,260 | Jul 01, 2026 | Department of Health and … |
| 12 | PACMED CLINICS | $2,104,074,705 | 2 | $1,052,037,352 | Oct 01, 2023 | Department of Defense |
