Professional, Scientific, and Technical Services
7,085 active contract opportunities
7,085
Active Opportunities
6,296
Posted Last 7 Days
30 days
Avg Response Window
Top Industries
- Engineering Services1196
- Other Computer Related Services1131
- Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)810
- All Other Professional, Scientific, and Technical Services575
- Administrative Management and General Management Consulting Services423
Set-Aside Distribution
- 4652
- No Set Aside766
- Small Business566
- SDVOSB550
- Small Business Set Aside - Total240
Top Locations
- VA1123
- DC882
- CO633
- MD631
- CA382
About NAICS541
The North American Industry Classification System (NAICS) code 541 covers professional, scientific, and technical services. Federal agencies use NAICS codes to classify contracts by industry. Businesses should register their applicable NAICS codes in SAM.gov.
Related Industries
FTA Closeout Support 2026
TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 541611
Posted Sep 25, 2026
Due Oct 13, 2026
Small Business Set Aside - TotalC-Nationwide General Architect/Engineering (A/E) Professional Services MATOC IDIQ - AECOM
INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 541330
Posted Sep 25, 2026
Digital Forensics Examiner Services
DEPT OF DEFENSE
NORFOLK, VA
NAICS 541519
Posted Sep 25, 2026
Due Oct 2, 2026
8(a) Set-AsideDiscovery Software VOIP CAIRS
DEPT OF DEFENSE
HOLLOMAN AFB, NM
NAICS 541519
Posted Sep 25, 2026
No Set AsideSR Power Supplies Rack Detailed Design for ALS-U
ENERGY, DEPARTMENT OF
Berkeley, CA
NAICS 541330
Posted Sep 25, 2026
Due Oct 3, 2026
No Set AsideB-FY2027 CARLSBAD FIELD OFFICE WATER AND SOIL ANALYS
INTERIOR, DEPARTMENT OF THE
Lakewood, CO
NAICS 541380
Posted Sep 25, 2026
Lunar Enabling Infrastructure Accelerator (LEIA) -Broad Agency Announcement (BAA) NextSTEP-3 Appendix A - Final Solicitation
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
CLEVELAND, OH
NAICS 541715
Posted Sep 25, 2026
Due Oct 15, 2026
No Set AsideQ702-Base YR (10/01/2026-09/30/2027) Nurse Call System Maintenance
VETERANS AFFAIRS, DEPARTMENT OF
MILWAUKEE, WI
NAICS 541511
Posted Sep 25, 2026
ISOF Range 2027
DEPT OF DEFENSE
TAMPA, FL
NAICS 541715
Posted Sep 25, 2026
Due Jan 29, 2027
No Set Aside7D20-Abacus Visual Playbook Builder and Automation Orchestrator
VETERANS AFFAIRS, DEPARTMENT OF
EATONTOWN, NJ
NAICS 541519
Posted Sep 25, 2026
MAHG181094CR Repair Runway Charrette, Keesler AFB, MS
DEPT OF DEFENSE
KEESLER AFB, MS
NAICS 541330
Posted Sep 25, 2026
Small Business Set Aside - TotalSmoke and Fire Damper Inspection
VETERANS AFFAIRS, DEPARTMENT OF
DAYTON, OH
NAICS 541350
Posted Sep 25, 2026
SDVOSBCCF TURNAROUND, FC TEST DESCRIPTION, DCSS RF, AND SP21 REPAIR
DEPT OF DEFENSE
WASHINGTON NAVY YARD, DC
NAICS 541330
Posted Sep 25, 2026
No Set AsideIntrinsic Market Resilience (IMR)
DEPT OF DEFENSE
ARLINGTON, VA
NAICS 541715
Posted Sep 25, 2026
Due Dec 7, 2026
Endpoint Security Event Management
DEPT OF DEFENSE
SCOTT AFB, IL
NAICS 541519
Posted Sep 25, 2026
Due Oct 9, 2026
No Set AsideC-VA MEADOWOOD SENSORY TRAIL A/E DESIGN TITLE I & II
INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541330
Posted Sep 25, 2026
2026 US and UK Weapon Control Systems Spares and Special Support Equipment
DEPT OF DEFENSE
WASHINGTON NAVY YARD, DC
NAICS 541330
Posted Sep 25, 2026
No Set AsideA Study on Vessel Design Challenge
TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 541720
Posted Sep 25, 2026
Due Jan 10, 2027
Program Management Support Services Bridge 4
DEPT OF DEFENSE
FALLS CHURCH, VA
NAICS 541611
Posted Sep 25, 2026
Due Oct 12, 2026
FY26 ICAM HSPD-12 Branch Program Support Services
GENERAL SERVICES ADMINISTRATION
WASHINGTON, DC
NAICS 541519
Posted Sep 25, 2026
