All Other Professional, Scientific, and Technical Services

344 active contract opportunities

344

Active Opportunities

326

Posted Last 7 Days

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Top Industries

  • All Other Professional, Scientific, and Technical Services344

Set-Aside Distribution

  • 234
  • Small Business49
  • No Set Aside26
  • SDVOSB19
  • 8(a) Competed6

Top Locations

  • CO74
  • VA39
  • DC34
  • TX32
  • MD30

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.

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

Joint Base Lewis McChord API and STI Inspections

DEPT OF DEFENSE
OMAHA, NE
NAICS 541990
Posted Mar 20, 2026
Due Apr 20, 2026
SDVOSB Sole Source

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

Plan Program Integrity Medicare Drug Integrity Contractor (PPI MEDIC)

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
BALTIMORE, MD
NAICS 541990
Posted Mar 18, 2026
WOSB

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

R-Science and Technical Support Services (STSSC) For Mid-Continent Region (MCR) i

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Mar 17, 2026
Due Jun 1, 2026
8(a) Competed

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

B-STUDENT CONTRACT - HARRISON PEKATS

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

$75M SATOC IDIQ - Assistant Secretary of the Army for Installations, Energy, and Environment (ASA(IEE))

DEPT OF DEFENSE
MOBILE, AL
NAICS 541990
Posted Mar 17, 2026
Due Apr 20, 2026

Conservation and Stabilization of the Plaster and Decorative Paint at the Presidents Room Ceiling, United States Capitol Building

ARCHITECT OF THE CAPITOL
Washington, DC
NAICS 541990
Posted Mar 16, 2026
Due Apr 20, 2026
No Set Aside

F-1305M326D0001 SEFSC SEFOP & PROP IDIQ

COMMERCE, DEPARTMENT OF
SEATTLE, WA
NAICS 541990
Posted Mar 16, 2026

International Monitoring System Waveform Operations and Maintenance

DEPT OF DEFENSE
FORT BELVOIR, VA
NAICS 541990
Posted Mar 13, 2026

Event Management and Rental Services for the Celebration of the United States Independence Day on or about June 29, 2026 Athens, Greece

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 541990
Posted Mar 13, 2026
Due Apr 30, 2026
No Set Aside

B-GS-05 SSC CATRIONA GOERING

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Mar 12, 2026