NAICS 541690 · Other Scientific And Technical Consulting Services
79 open opportunities · 4,734 FY2025 awards · $2.18B obligated
Top contractors in this NAICS
- Kelly Services, INC.$105.9M
- System High Corporation$55.1M
- Tetra Tech Es, INC.$39.4M
Hunting recompetes here?
10+ contracts in this NAICS end within 18 months. The largest are listed below — incumbents and end dates included.
All expiring 541690 contracts →Open opportunities
| Title | Agency | Type | NAICS | Posted | Deadline |
|---|---|---|---|---|---|
| Clinical trial design for HPS pulmonary fibrosis | NATIONAL INSTITUTES OF HEALTH | Presolicitation | 541690 | Jul 12, 2026 | Jul 22, 2026(6d) |
| R--NOTICE OF INTENT - ATLANTIC COUNCIL OF THE U.S. | ENERGY, DEPARTMENT OF | Special Notice | 541690 | Jul 11, 2026 | Jul 21, 2026(5d) |
| DARPA Program Security Services | DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA) | Sources Sought | 541690 | Jul 10, 2026 | Jul 24, 2026(9d) |
| Notice of Intent to Sole Source - Security Identity Management Support | TRANSPORTATION SECURITY ADMINISTRATION | Special Notice | 541690 | Jul 9, 2026 | Jul 16, 2026(1d) |
| Notice of Intent to Sole Source - Credentialing Management Support | TRANSPORTATION SECURITY ADMINISTRATION | Special Notice | 541690 | Jul 9, 2026 | Jul 16, 2026(1d) |
| B--SOURCES SOUGHT UPDATE RIVER BASIN MODEL (RBM10) | US GEOLOGICAL SURVEY | Sources Sought | 541690 | Jul 9, 2026 | Jul 16, 2026(1d) |
| Supply Side Energy and Management Services | PUBLIC BUILDINGS SERVICE | Presolicitation | 541690 | Jul 9, 2026 | Jul 16, 2026(1d) |
| NON-DESTRUCTIVE TESTING TRAINING COURSE | NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | Combined Synopsis/Solicitation | 541690 | Jul 8, 2026 | Jul 22, 2026(7d) |
| American Made Post Prize Support Opportunities Education Program | ENERGY, DEPARTMENT OF | Sources Sought | 541690 | Jul 8, 2026 | Aug 1, 2026(16d) |
| Recurring Maintenance Services-Negative Pressure Fans | VETERANS AFFAIRS, DEPARTMENT OF | Combined Synopsis/Solicitation | 541690 | Jul 8, 2026 | Jul 14, 2026 |
| Laboratory Safety Evaluation and Safety Plan Assessment | FEDERAL HIGHWAY ADMINISTRATION | Combined Synopsis/Solicitation | 541690 | Jul 8, 2026 | Jul 25, 2026(9d) |
| Scientific analysis and mathematical modeling of clinical research data | NATIONAL INSTITUTES OF HEALTH | Combined Synopsis/Solicitation | 541690 | Jul 8, 2026 | Jul 18, 2026(2d) |
| USDA-ERS Macroeconomic Forecasts & ERS Farm Income Data | AGRICULTURAL RESEARCH SERVICE | Award Notice | 541690 | Jul 7, 2026 | — |
| Antiterrorism Program Support | DEPT OF THE ARMY | Sources Sought | 541690 | Jul 7, 2026 | Jul 10, 2026 |
| Bidder inquiry for LRD | DEPT OF THE ARMY | Combined Synopsis/Solicitation | 541690 | Jul 7, 2026 | Jul 27, 2026(12d) |
Largest contracts ending within 18 months
| PIID | Contractor | Description | Agency | NAICS | Obligated | Start | End |
|---|---|---|---|---|---|---|---|
| FA564125F0021 ↗ | Parsons Government Services INC. | ABAD TASK ORDER 5 | Department Of The Air Force | 541690 | $65.9M | Sep 30, 2025 | Sep 29, 2026 |
| W58RGZ21C0016 ↗ | Lockheed Martin Corporation | ATTACK HELICOPTER (AH-64) APACHE MODERNIZED TARGET ACQUISITION DESIGNATION SIGHT / PILOT NIGHT VISION SENSOR (MTADS/PNVS) PERFORMANCE BASED LOGISTICS (PBL) | Department Of The Army | 541690 | $65.5M | Jul 1, 2021 | Aug 31, 2027 |
| HQ085822C0007 ↗ | System High Corporation | DEI LABOR | Missile Defense Agency | 541690 | $21.7M | Aug 26, 2022 | Aug 25, 2027 |
| FA564121F0016 ↗ | Parsons Government Services INC. | RADSIL OPERATIONS AND MAINTENANCE. | Department Of The Air Force | 541690 | $12.2M | Aug 1, 2021 | Jul 31, 2026 |
| HDTRA122C0026 ↗ | Akima Data Management LLC | SECURITY SUPPORT SERVICES | Defense Threat Reduction Agency | 541690 | $12.0M | Mar 1, 2022 | Sep 27, 2026 |
| N6274224F0180 ↗ | Hdr Environmental, Operations And Construction, INC. | THIS CONTRACT TASK ORDER (CTO) MODIFICATION IS ISSUED TO EXERCISE THE FOLLOWING TASKS: TASK 5 - (EXERCISED 4 TIMES)TASK 11- (EXERCISED 8 TIMES)TASK 12 - (EXERCISED 7 TIMES)TASK 13B - (EXERCISED 5 TIMES) | Department Of The Navy | 541690 | $11.0M | Jul 23, 2024 | Jul 31, 2026 |
| FA702225F0015 ↗ | Kegman INC. | THIS TASK ORDER IS FOR MANAGEMENT, ENGINEERING AND RESEARCH CONCEPTS GEOPHYSICAL EXPANDED ACQUISITION FOLLOW-ON WHICH PROVIDES NON-PERSONAL ADVISORY AND ASSISTANCE SERVICES FOR THE AIR FORCE TECHNICAL APPLICATIONS CENTER. | Department Of The Air Force | 541690 | $10.5M | Jan 1, 2025 | Nov 30, 2026 |
| 140D0421F0589 ↗ | Essex Management LLC | CLINICAL REPORTING AND RESEARCH INFORMATICS (CRRI) | Departmental Offices | 541690 | $10.4M | Sep 1, 2021 | Aug 31, 2026 |
| 72011722C00002 ↗ | Chemonics International, INC. | RURAL COMPETITIVENESS RESILIENCE ACTIVITY INCREMENTAL FUNDING | Agency For International Development | 541690 | $10.1M | Sep 20, 2022 | Sep 19, 2027 |
| 72029422C00003 ↗ | Chemonics International, INC. | EGNI - MEPPA BUILDING REGIONAL ECONOMIC BRIDGES (BREB) ACTIVITY. | Agency For International Development | 541690 | $10.0M | Sep 29, 2022 | Sep 28, 2027 |