All Other Professional, Scientific, and Technical Services

576 active contract opportunities

576

Active Opportunities

507

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • All Other Professional, Scientific, and Technical Services576

Set-Aside Distribution

  • 416
  • Small Business53
  • No Set Aside41
  • SDVOSB30
  • Small Business Set Aside - Total12

Top Locations

  • CO173
  • VA61
  • DC58
  • MD53
  • TX34

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.

R-Science and Technical Support Services (STSSC) For

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 18, 2026

B-Assessing Biodiversity using environmental DNA (eD

COMMERCE, DEPARTMENT OF
SEATTLE, WA
NAICS 541990
Posted Sep 18, 2026

H342-Fire Extinguisher Inspection and Service in Support of the St. Cloud VA Healthcare System

VETERANS AFFAIRS, DEPARTMENT OF
Saint Paul, MN
NAICS 541990
Posted Sep 17, 2026

R-Water Rights Litigation Support for Fort Belknap A

INTERIOR, DEPARTMENT OF THE
RESTON, VA
NAICS 541990
Posted Sep 17, 2026

Technology Test and Evaluation Division (TTED) Technology Evaluations Support Services

COMMERCE, DEPARTMENT OF
GAITHERSBURG, MD
NAICS 541990
Posted Sep 17, 2026
Small Business Set Aside - Total

Technology Test and Evaluation Division (TTED) Technology Evaluations Support Services

COMMERCE, DEPARTMENT OF
GAITHERSBURG, MD
NAICS 541990
Posted Sep 17, 2026
Small Business Set Aside - Total

R-FY2025-2026 Program/Project Management Services

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 17, 2026

B-P. MULLIN - NEW SC

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 17, 2026

R-Science and Technical Support Services IDIQ Contra

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 17, 2026

Fire Extinguisher & Hood Inspection

VETERANS AFFAIRS, DEPARTMENT OF
Saint Paul, MN
NAICS 541990
Posted Sep 17, 2026
SDVOSB

Oak Ridge Institute for Science and Education (ORISE) (Expressions of Interest and Request for Information)

ENERGY, DEPARTMENT OF
OAK RIDGE, TN
NAICS 541990
Posted Sep 16, 2026
Due Oct 7, 2026

R-Digital Services, Geospatial Technical Services

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 15, 2026

Q-DNA Next-Generation Amplicon Sequencing Services

COMMERCE, DEPARTMENT OF
SEATTLE, WA
NAICS 541990
Posted Sep 15, 2026

B-L. SORROW - NEW SC

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Sep 15, 2026

R-Observer Program Gear Team Services

COMMERCE, DEPARTMENT OF
SEATTLE, WA
NAICS 541990
Posted Sep 15, 2026

B-Refining seasonal cetacean density models to suppo

COMMERCE, DEPARTMENT OF
KANSAS CITY, MO
NAICS 541990
Posted Sep 15, 2026

Justification for Other than Full and Open Competition (JOFOC) for System Architectures for Intelligent Transportation Standardization, Deployment, and Evolution

TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 541990
Posted Sep 14, 2026

Notice of Intent to Sole Source Guidehouse Digital LLC - Pediatric Hospitalist - Scientific Subject Matter Expert

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
BETHESDA, MD
NAICS 541990
Posted Sep 14, 2026

Hawaiian false killer whale photo-identification

COMMERCE, DEPARTMENT OF
KANSAS CITY, MO
NAICS 541990
Posted Sep 11, 2026
Small Business Set Aside - Total

Technical Support Services for the FHWA Office of Safety and Operations Research & Development

TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 541990
Posted Sep 11, 2026
Due Oct 9, 2026