| 1 | SIEMENS MEDICAL SOLUTIONS USA, INC. | $660,554,790 | 328 | $2,013,887 | Sep 24, 2026 | Department of Veterans Af… |
| 2 | SMITHS DETECTION INC. | $592,187,037 | 19 | $31,167,739 | Jul 07, 2026 | Department of Homeland Se… |
| 3 | RAPISCAN SYSTEMS INC | $461,308,385 | 15 | $30,753,892 | Jul 31, 2026 | Department of Homeland Se… |
| 4 | LEIDOS, INC. | $427,979,115 | 17 | $25,175,242 | Aug 24, 2026 | Department of Homeland Se… |
| 5 | GE PRECISION HEALTHCARE LLC | $373,002,558 | 276 | $1,351,459 | Sep 29, 2026 | Department of Veterans Af… |
| 6 | PHILIPS NORTH AMERICA LLC | $310,352,121 | 246 | $1,261,594 | Sep 18, 2026 | Department of Veterans Af… |
| 7 | WESTINGHOUSE GOVERNMENT SERVICES LLC | $221,381,740 | 1 | $221,381,740 | Jul 15, 2000 | Department of Energy |
| 8 | LEIDOS SECURITY DETECTION & AUTOMATION, INC. | $186,511,142 | 13 | $14,347,011 | Mar 03, 2026 | Department of Homeland Se… |
| 9 | SMITHS DETECTION, INC | $154,704,178 | 8 | $19,338,022 | Sep 25, 2020 | Department of Homeland Se… |
| 10 | AMERICAN SCIENCE & ENGINEERING INC | $152,704,593 | 4 | $38,176,148 | Sep 28, 2018 | Department of Homeland Se… |
| 11 | ASTROPHYSICS INC | $119,745,040 | 7 | $17,106,434 | Aug 06, 2026 | Department of Homeland Se… |
| 12 | VARIAN MEDICAL SYSTEMS, INC | $116,713,135 | 33 | $3,536,762 | Sep 25, 2026 | Department of Veterans Af… |
