NAICS 541990 · All Other Professional, Scientific, And Technical Services
207 open opportunities · 12,002 FY2025 awards · $12.00B obligated
Top contractors in this NAICS
- Booz Allen Hamilton INC$641.0M
- Sierra Nevada Company, LLC$593.6M
- The Mitre Corporation$557.9M
- Dai Global LLC$180.2M
Hunting recompetes here?
10+ contracts in this NAICS end within 18 months. The largest are listed below — incumbents and end dates included.
All expiring 541990 contracts →Open opportunities
Largest contracts ending within 18 months
| PIID | Contractor | Description | Agency | NAICS | Obligated | Start | End |
|---|---|---|---|---|---|---|---|
| 47QFCA24F0037 ↗ | Booz Allen Hamilton INC | SERVICE SOLUTIONS FOR MODERNIZATION ANALYSIS READINESS CAPABILITY THREAT AND TRAINING SSMARTT | Federal Acquisition Service | 541990 | $319.9M | Sep 10, 2024 | Sep 9, 2026 |
| 47QFCA24F0043 ↗ | Hii Mission Technologies Corp | ADMIN ONLY | Federal Acquisition Service | 541990 | $241.2M | Sep 16, 2024 | Sep 15, 2026 |
| DESC0014664 ↗ | Oak Ridge Associated Universities, Incorporated | MANAGEMENT OF THE OAK RIDGE INSTITUTE FOR SCIENCE AND EDUCATION. | Department Of Energy | 541990 | $186.7M | Mar 10, 2016 | Sep 30, 2026 |
| 47QFCA23F0016 ↗ | Hii Mission Technologies Corp | USAFRICOM PERSONNEL RECOVERY ENTERPRISE SERVICES AND SOLUTIONS PRESS OBLIGATION OF FUNDING. | Federal Acquisition Service | 541990 | $170.5M | Mar 1, 2023 | Feb 27, 2027 |
| 693KA923F00076 ↗ | Ptsi Managed Services INC | THE T5 CONTRACT WILL SUPPORT IMPLEMENTATION OF THE FEDERAL AVIATION ADMINISTRATION AVIATION CIP AND CERTAIN REIMBURSABLE PROGRAMS INCLUDING THOSE ARISING FROM AIP APPROPRIATIONS AND OTHER DIRECTLY FUNDED AND REIMBURSABLE PROJECTS | Federal Aviation Administration | 541990 | $140.9M | Mar 30, 2023 | Apr 5, 2027 |
| 7200AA23C00012 ↗ | Abt Global LLC | PREVENTION OF MALARIA THROUGH VECTOR CONTROL (PMI EVOLVE) | Agency For International Development | 541990 | $139.7M | Dec 15, 2022 | Dec 18, 2027 |
| 47QFCA19C0016 ↗ | Bluestaq LLC | MOD 51 IF AND CEILING INCREASE. THIS SBIR PHASE III EFFORT IS A FOLLOW ON PHASE I CONTRACT FA9453-18-P-0230, TOPIC NUMBER AF181039. | Federal Acquisition Service | 541990 | $115.8M | Aug 1, 2019 | Jul 31, 2026 |
| HQ003422F0001 ↗ | The Johns Hopkins University Applied Physics Laboratory LLC | MULTIPLE RESEARCH AND ANALYSIS SUPPORT SERVICES RELATING TO WARFARE CAPABILITIES. | Washington Headquarters Services | 541990 | $79.1M | Jun 30, 2022 | Sep 30, 2026 |
| FA870225CB001 ↗ | The Mitre Corporation | MITRE NATIONAL SECURITY ENGINEERING CENTER (NSEC) SERVICES FOR THE AIR FORCE | Department Of The Air Force | 541990 | $73.4M | Oct 1, 2025 | Sep 30, 2026 |
| HQ003425F0021 ↗ | Institute For Defense Analyses | RESEARCH, DEVELOPMENT, AND STUDIES SUPPORT SERVICES. | Washington Headquarters Services | 541990 | $70.1M | Nov 22, 2024 | Nov 29, 2026 |