All Other Professional, Scientific, and Technical Services

467 active contract opportunities

467

Active Opportunities

440

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • All Other Professional, Scientific, and Technical Services467

Set-Aside Distribution

  • 323
  • Small Business62
  • No Set Aside44
  • SDVOSB24
  • 8(a) Competed6

Top Locations

  • CO131
  • DC49
  • VA46
  • MD40
  • TX32

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.

B-STUDENT CONTRACT - RITA GORSUCH

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jan 14, 2026

Medical Physics Testing

DEPT OF DEFENSE
JBSA FT SAM HOUSTON, TX
NAICS 541990
Posted Jan 14, 2026
Small Business

Justification for an Exception to Fair Opportunity - Free Space Optical Communications (FSOC) IV

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
GREENBELT, MD
NAICS 541990
Posted Jan 12, 2026

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 Jan 12, 2026

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

R-Science and Technical Support Services (STSSC) For

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

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

QAO ISO Audit

DEPT OF DEFENSE
ANNISTON, AL
NAICS 541990
Posted Dec 22, 2025

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