| 1 | SMITHS DETECTION INC. | $476,661,672 | 12 | $39,721,806 | Jul 07, 2026 | Department of Homeland Se… |
| 2 | LEIDOS, INC. | $325,946,114 | 11 | $29,631,465 | Jun 17, 2026 | Department of Homeland Se… |
| 3 | RAPISCAN SYSTEMS INC | $300,575,023 | 7 | $42,939,289 | Jul 30, 2026 | Department of Homeland Se… |
| 4 | SIEMENS MEDICAL SOLUTIONS USA, INC. | $231,878,014 | 123 | $1,885,187 | Sep 15, 2026 | Department of Veterans Af… |
| 5 | WESTINGHOUSE GOVERNMENT SERVICES LLC | $221,381,740 | 1 | $221,381,740 | Jul 15, 2000 | Department of Energy |
| 6 | GE PRECISION HEALTHCARE LLC | $166,280,692 | 118 | $1,409,158 | Sep 29, 2026 | Department of Veterans Af… |
| 7 | PHILIPS NORTH AMERICA LLC | $134,042,887 | 99 | $1,353,969 | Sep 11, 2026 | Department of Veterans Af… |
| 8 | ASTROPHYSICS INC | $118,051,622 | 6 | $19,675,270 | Aug 06, 2026 | Department of Homeland Se… |
| 9 | LEIDOS SECURITY DETECTION & AUTOMATION, INC. | $81,938,953 | 6 | $13,656,492 | Mar 03, 2026 | Department of Homeland Se… |
| 10 | AMERICAN SCIENCE & ENGINEERING INC | $63,559,908 | 1 | $63,559,908 | Sep 28, 2018 | Department of Homeland Se… |
| 11 | VARIAN MEDICAL SYSTEMS, INC | $53,372,840 | 14 | $3,812,346 | Jun 25, 2026 | Department of Veterans Af… |
| 12 | SMITHS DETECTION, INC | $42,866,380 | 3 | $14,288,793 | Sep 25, 2020 | Department of Homeland Se… |
