All Other Professional, Scientific, and Technical Services

575 active contract opportunities

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Top Industries

  • All Other Professional, Scientific, and Technical Services575

Set-Aside Distribution

  • 416
  • Small Business53
  • No Set Aside40
  • SDVOSB30
  • Small Business Set Aside - Total12

Top Locations

  • CO173
  • VA61
  • DC57
  • 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.

DVBD IDIQ-Policy and Admin Support Services

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 541990
Posted May 27, 2026
8(a) Competed

Justification-Maintenance of a Technical Advisory Group for United States Representation

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
Rockville, MD
NAICS 541990
Posted May 27, 2026

R-Science and Technical Support Services IDIQ Contract Mid-Continent

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted May 27, 2026

B-STUDENT CONTRACT - IGOR FREEMAN

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted May 22, 2026

B-STUDENT CONTRACT - NICHOLAS WELD

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted May 22, 2026

R-Tribal Secretarial Election Support Services for Winnebago Agency

INTERIOR, DEPARTMENT OF THE
ABERDEEN, SD
NAICS 541990
Posted May 15, 2026

Bridge Contract for Contract Administration and Closeout Support Services

NUCLEAR REGULATORY COMMISSION
ROCKVILLE, MD
NAICS 541990
Posted May 12, 2026

Golden Dome for America Commercial Solutions Opening

DEPT OF DEFENSE
WASHINGTON, DC
NAICS 541990
Posted Apr 2, 2026
Due Apr 2, 2031
No Set Aside

Q301-Diagnostic Medical Physicist Services RLRVAMC

VETERANS AFFAIRS, DEPARTMENT OF
DAYTON, OH
NAICS 541990
Posted Mar 30, 2026
SDVOSB

H258-Medical Physicist at Clement J. Zablocki VAMC, Oscar G. Johnson VAMC, Milo C. Huempfner CBOC, and John H. Bradley CBOC

VETERANS AFFAIRS, DEPARTMENT OF
MILWAUKEE, WI
NAICS 541990
Posted Mar 27, 2026
SDVOSB

Hand-Pulling Eurasian Watermilfoil, North Hartland Lake, North Hartland, VT and North Springfield Lake, Springfield, VT

DEPT OF DEFENSE
CONCORD, MA
NAICS 541990
Posted Mar 23, 2026
Small Business

B-STUDENT SERVICE CONTRACT - JACK YODZEVICIS

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Mar 20, 2026

BTO SETA Support Services

DEPT OF DEFENSE
ARLINGTON, VA
NAICS 541990
Posted Mar 20, 2026
No Set Aside

SAMHSA Behavioral Health Services Information System (BHSIS) Bridge Contract

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ROCKVILLE, MD
NAICS 541990
Posted Mar 19, 2026

H258-Medical Physicist for William S. Middleton Memorial Veterans Hospital

VETERANS AFFAIRS, DEPARTMENT OF
MILWAUKEE, WI
NAICS 541990
Posted Mar 18, 2026
SDVOSB

Arms Control Subject Matter Expert and Training Support Services

DEPT OF DEFENSE
FORT BELVOIR, VA
NAICS 541990
Posted Mar 18, 2026

R-LAUREN KENYON NEW SSC

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

B-STUDENT CONTRACT - SARAH VAN ROOYEN

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

SEDRIC Ontology Modernization Services TO5

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 541990
Posted Mar 17, 2026
Small Business

B-STUDENT CONTRACT - ELLIANA PROW

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