NAICS 541990in54199:All Other Professional, Scientific, and Technical Services

All Other Professional, Scientific, and Technical Services

309 active contract opportunities

309

Active Opportunities

17

Posted Last 7 Days

30 days

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Top Industries

  • All Other Professional, Scientific, and Technical Services309

Set-Aside Distribution

  • 193
  • Small Business49
  • No Set Aside34
  • SDVOSB17
  • 8(a) Competed7

Top Locations

  • CO42
  • VA42
  • MD33
  • TX30
  • DC29

About NAICS541990

The North American Industry Classification System (NAICS) code 541990 covers all other 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.

SAM.gov Registration →|Set-Aside Programs →

Related Industries

541110:Offices of Lawyers541120:Offices of Notaries541191:Title Abstract and Settlement ...541199:All Other Legal Services541211:Offices of Certified Public Ac...541213:Tax Preparation Services

R-Science and Technical Support Services IDIQ Contra

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jan 9, 2026

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jan 8, 2026

Integrated Geospatial Intelligence Enterprise Architecture (IGEA)

DEPT OF DEFENSE
FORT BELVOIR, VA
NAICS 541990
Posted Jan 8, 2026
Due Feb 9, 2026
14 days left

USCG Station Marathon Basin Bubble Curtain Repair

HOMELAND SECURITY, DEPARTMENT OF
MIAMI, FL
NAICS 541990
Posted Jan 8, 2026
Due Jan 28, 2026
Small Business
3 days left

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jan 7, 2026

R499-Ergonomic Assessment Services

VETERANS AFFAIRS, DEPARTMENT OF
Gilbert, AZ
NAICS 541990
Posted Jan 6, 2026
Due Jan 27, 2026
2 days left

Space- and Ground-Based Environmental Monitoring (EM) Commercial Data and Services Request for Information (RFI)

DEPT OF DEFENSE
EL SEGUNDO, CA
NAICS 541990
Posted Jan 6, 2026
Due Feb 21, 2026
No Set Aside
26 days left

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 29, 2025

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 29, 2025

Space Based Infrared Radar Operations Support (SBIRS OS) Bridge

DEPT OF DEFENSE
PETERSON AFB, CO
NAICS 541990
Posted Dec 29, 2025
Small Business

Fire Sprinkler System Inspection and Repair Services at PEWARS

DEPT OF DEFENSE
PITTSBURGH, PA
NAICS 541990
Posted Dec 23, 2025
No Set Aside

Traumatic Brain Injury Center of Excellence Warfighter Brain Health Research and Translation Support Services

DEPT OF DEFENSE
FALLS CHURCH, VA
NAICS 541990
Posted Dec 19, 2025
Due Jan 27, 2026
No Set Aside
2 days left

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 19, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025

R-Science and Technical Support Services for National Water Quality Laboratory (NWQL) in Denver and Boulder, Colorado.

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Dec 18, 2025
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