NAICS 541990 · All Other Professional, Scientific, And Technical Services
154 open opportunities · 15,171 FY2025 awards · $19.97B obligated
Top contractors in this NAICS
- Booz Allen Hamilton INC$1.09B
- Sierra Nevada Company, LLC$900.0M
- The Mitre Corporation$857.1M
- Ptsi Managed Services INC$444.4M
- Caci, INC. - Federal$282.4M
- Bluestaq LLC$264.1M
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
- Air Force Technical and Analytical Support and Professional Services (AFTAS Pro) CSO
- Deadline
- Nov 20, 2026(8d)
- Agency
- DEPT OF THE AIR FORCE
- Type
- Solicitation
- NAICS
- 541990
- Posted
- Nov 10, 2026
- Quality Assurance Services - Civil Works, Interagency and International Services (IIS), and Military Construction Projects in Puerto Rico and U.S. Virgin Islands
- Deadline
- Nov 20, 2026(8d)
- Agency
- DEPT OF THE ARMY
- Type
- Solicitation
- NAICS
- 541990
- Posted
- Nov 10, 2026
- Vandenberg SFB Tank Inspection
- Deadline
- Nov 27, 2026(15d)
- Agency
- DEPT OF THE ARMY
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541990
- Posted
- Nov 10, 2026
- SMART IRB Governance, Administration, and Operations Support (GAOS)
- Deadline
- Nov 13, 2026(1d)
- Agency
- NATIONAL INSTITUTES OF HEALTH
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541990
- Posted
- Nov 10, 2026
- MQ-4C Triton Unmanned Aircraft System (UAS) Sustaining Engineering and Support (SES) IV Contract Modification to Incorporate Royal Australian Air Force (RAAF) Technical Services Contract Line Item Numbers (CLINs)
- Deadline
- Nov 25, 2026(13d)
- Agency
- DEPT OF THE NAVY
- Type
- Presolicitation
- NAICS
- 541990
- Posted
- Nov 10, 2026
- NIH Scientific & Technical Expertise & Acquisition Management (STEAM)
- Deadline
- Nov 16, 2026(5d)
- Agency
- NATIONAL INSTITUTES OF HEALTH
- Type
- Sources Sought
- NAICS
- 541990
- Posted
- Nov 10, 2026
- FDA Scientific & Regulatory Support Services(SRS)
- Deadline
- Nov 23, 2026(11d)
- Agency
- FOOD AND DRUG ADMINISTRATION
- Type
- Sources Sought
- NAICS
- 541990
- Posted
- Nov 10, 2026
- B--ShakeAlert Production System Code Review
- Deadline
- Nov 23, 2026(11d)
- Agency
- DEPARTMENTAL OFFICES
- Type
- Presolicitation
- NAICS
- 541990
- Posted
- Nov 9, 2026
- U.S. Navy and Royal Australian Air Force (RAAF) MQ-4C Triton Unmanned Aircraft System (UAS) Sustaining Engineering and Support (SES) V Contract
- Deadline
- Nov 23, 2026(11d)
- Agency
- DEPT OF THE NAVY
- Type
- Sources Sought
- NAICS
- 541990
- Posted
- Nov 9, 2026
- U.S. Coast Guard Air Station Port Angeles Annual Fire Protection System Inspection
- Deadline
- Nov 23, 2026(11d)
- Agency
- US COAST GUARD
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541990
- Posted
- Nov 9, 2026
- ACC-APG Industry Update November 2026: Registration and request for topics
- Deadline
- Dec 15, 2026(34d)
- Agency
- DEPT OF THE ARMY
- Type
- Special Notice
- NAICS
- 541990
- Posted
- Nov 6, 2026
- R--STUDENT SERVICES - HANNAH COX
- Deadline
- —
- Agency
- DEPARTMENTAL OFFICES
- Type
- Award Notice
- NAICS
- 541990
- Posted
- Nov 6, 2026
- USACE Tactical Readiness - Integrated Deployment of Enterprise Services (TRIDENT)
- Deadline
- —
- Agency
- DEPT OF THE ARMY
- Type
- Presolicitation
- NAICS
- 541990
- Posted
- Nov 5, 2026
- Advances in Contemporary Mining Safety and Health Challenges for Critical Minerals
- Deadline
- Jan 11, 2027(60d)
- Agency
- CENTERS FOR DISEASE CONTROL AND PREVENTION
- Type
- Solicitation
- NAICS
- 541990
- Posted
- Nov 5, 2026
- FIRE FIGHTING EQUIPMENT INSPECTIONS
- Deadline
- Nov 10, 2026
- Agency
- DEPT OF THE NAVY
- Type
- Solicitation
- NAICS
- 541990
- Posted
- Nov 5, 2026
Largest contracts ending within 18 months
- 47QFCA24F0037 ↗$637.8M
SERVICE SOLUTIONS FOR MODERNIZATION ANALYSIS READINESS CAPABILITY THREAT AND TRAINING SSMARTT
- Ends
- Sep 8, 2027
- Started
- Sep 9, 2024
- Agency
- Federal Acquisition Service
- NAICS
- 541990
- 47QFCA24F0043 ↗$556.3M
ADMIN ONLY
- Ends
- Sep 14, 2027
- Started
- Sep 15, 2024
- Agency
- Federal Acquisition Service
- NAICS
- 541990
- 47QFCA23F0016 ↗$300.4M
USAFRICOM PERSONNEL RECOVERY ENTERPRISE SERVICES AND SOLUTIONS PRESS OBLIGATION OF FUNDING.
- Ends
- Feb 27, 2027
- Started
- Feb 28, 2023
- Agency
- Federal Acquisition Service
- NAICS
- 541990
- DESC0014664 ↗$273.8M
MANAGEMENT OF THE OAK RIDGE INSTITUTE FOR SCIENCE AND EDUCATION.
- Ends
- Sep 29, 2027
- Started
- Mar 9, 2016
- Agency
- Department Of Energy
- NAICS
- 541990
- 47QFCA19C0016 ↗$264.1M
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.
- Ends
- Jul 30, 2027
- Started
- Jul 31, 2019
- Agency
- Federal Acquisition Service
- NAICS
- 541990
- HQ003424F0422 ↗$175.5M
INFORMATION, TECHNOLOGY, AND EXPLORATORY RESEARCH AND DEVELOPMENT.
- Ends
- Feb 23, 2028
- Started
- Aug 22, 2024
- Agency
- Washington Headquarters Services
- NAICS
- 541990
- 47QFCA24F0018 ↗$158.5M
GLOBAL OPERATIONAL SUPPORT INFORMATION INSIGHT AND THREAT GOSIIT
- Ends
- May 18, 2027
- Started
- May 19, 2024
- Agency
- Federal Acquisition Service
- NAICS
- 541990
- 7200AA23C00012 ↗$156.4M
PREVENTION OF MALARIA THROUGH VECTOR CONTROL (PMI EVOLVE)
- Ends
- Dec 17, 2027
- Started
- Dec 14, 2022
- Agency
- Agency For International Development
- NAICS
- 541990
- HQ003425F0021 ↗$129.3M
RESEARCH, DEVELOPMENT, AND STUDIES SUPPORT SERVICES.
- Ends
- Jun 20, 2027
- Started
- Nov 21, 2024
- Agency
- Washington Headquarters Services
- NAICS
- 541990
- 75N99225F00001 ↗$116.1M
PROFESSIONAL, TECHNICAL, AND ADMINISTRATIVE SERVICES
- Ends
- Jun 18, 2027
- Started
- Jun 19, 2025
- Agency
- National Institutes Of Health
- NAICS
- 541990
| 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 | $637.8M | Sep 9, 2024 | Sep 8, 2027 |
| 47QFCA24F0043 ↗ | Hii Mission Technologies Corp | ADMIN ONLY | Federal Acquisition Service | 541990 | $556.3M | Sep 15, 2024 | Sep 14, 2027 |
| 47QFCA23F0016 ↗ | Hii Mission Technologies Corp | USAFRICOM PERSONNEL RECOVERY ENTERPRISE SERVICES AND SOLUTIONS PRESS OBLIGATION OF FUNDING. | Federal Acquisition Service | 541990 | $300.4M | Feb 28, 2023 | Feb 27, 2027 |
| DESC0014664 ↗ | Oak Ridge Associated Universities, Incorporated | MANAGEMENT OF THE OAK RIDGE INSTITUTE FOR SCIENCE AND EDUCATION. | Department Of Energy | 541990 | $273.8M | Mar 9, 2016 | Sep 29, 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 | $264.1M | Jul 31, 2019 | Jul 30, 2027 |
| HQ003424F0422 ↗ | Institute For Defense Analyses | INFORMATION, TECHNOLOGY, AND EXPLORATORY RESEARCH AND DEVELOPMENT. | Washington Headquarters Services | 541990 | $175.5M | Aug 22, 2024 | Feb 23, 2028 |
| 47QFCA24F0018 ↗ | Caci, INC. - Federal | GLOBAL OPERATIONAL SUPPORT INFORMATION INSIGHT AND THREAT GOSIIT | Federal Acquisition Service | 541990 | $158.5M | May 19, 2024 | May 18, 2027 |
| 7200AA23C00012 ↗ | Abt Global LLC | PREVENTION OF MALARIA THROUGH VECTOR CONTROL (PMI EVOLVE) | Agency For International Development | 541990 | $156.4M | Dec 14, 2022 | Dec 17, 2027 |
| HQ003425F0021 ↗ | Institute For Defense Analyses | RESEARCH, DEVELOPMENT, AND STUDIES SUPPORT SERVICES. | Washington Headquarters Services | 541990 | $129.3M | Nov 21, 2024 | Jun 20, 2027 |
| 75N99225F00001 ↗ | Booz Allen Hamilton INC | PROFESSIONAL, TECHNICAL, AND ADMINISTRATIVE SERVICES | National Institutes Of Health | 541990 | $116.1M | Jun 19, 2025 | Jun 18, 2027 |