Professional, Scientific, and Technical Services

5,671 active contract opportunities

5,671

Active Opportunities

5,206

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Engineering Services969
  • Other Computer Related Services844
  • Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)705
  • All Other Professional, Scientific, and Technical Services467
  • Administrative Management and General Management Consulting Services316

Set-Aside Distribution

  • 3669
  • Small Business650
  • No Set Aside642
  • SDVOSB449
  • 8(a) Sole Source64

Top Locations

  • VA846
  • DC720
  • MD494
  • CO438
  • CA317

About NAICS541

The North American Industry Classification System (NAICS) code 541 covers 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.

Related Industries

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

Canine Thermal Model and Monitor (CTMM)

DEPT OF DEFENSE
FORT DETRICK, MD
NAICS 541715
Posted Jul 2, 2026
Due Aug 3, 2026
No Set Aside

Award Notice - TRM Labs, Inc.

HOMELAND SECURITY, DEPARTMENT OF
Irving, TX
NAICS 541519
Posted Jul 2, 2026

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

FEDLINK Library Support Services

LIBRARY OF CONGRESS
WASHINGTON, DC
NAICS 541990
Posted Jul 2, 2026
No Set Aside

WESTERN HEMISPHERE COMMAND (WHC) SUSTAINABLE RANGE PROGRAM (SRP) SINGLE AWARD TASK ORDER CONTRACT (SATOC)

DEPT OF DEFENSE
SAVANNAH, GA
NAICS 541330
Posted Jul 2, 2026
Small Business

Next Generation Undersea Security Initiative (NG-USI)

DEPT OF DEFENSE
WASHINGTON NAVY YARD, DC
NAICS 541715
Posted Jul 2, 2026
Due Jul 1, 2031
No Set Aside

C-Nationwide General Architect/Engineering (A/E) Professional Services MATOC IDIQ - HDR

INTERIOR, DEPARTMENT OF THE
Denver, CO
NAICS 541330
Posted Jul 2, 2026

C1DA-589-26-144, Prepare Site for High Cost Medical Equipment RFIR

VETERANS AFFAIRS, DEPARTMENT OF
LEAVENWORTH, KS
NAICS 541330
Posted Jul 2, 2026
SDVOSB

PAR EXCELLENCE - Phase 2 Expansion

VETERANS AFFAIRS, DEPARTMENT OF
HAMPTON, VA
NAICS 541614
Posted Jul 2, 2026

Tyndall AFB IROC OT Stack Phase 3

DEPT OF DEFENSE
JBSA LACKLAND, TX
NAICS 541512
Posted Jul 2, 2026

Apryse ActivePDF

DEPT OF DEFENSE
COLUMBUS, OH
NAICS 541519
Posted Jul 2, 2026

Transient Reducing Active Power System (TRAPS) Research Opportunity

DEPT OF DEFENSE
ARLINGTON, VA
NAICS 541715
Posted Jul 2, 2026
Due Sep 25, 2026

JEFO-Office of Health Security Administrative, Personnel Security, & Facility Support Services

HOMELAND SECURITY, DEPARTMENT OF
Washington, DC
NAICS 541611
Posted Jul 2, 2026

Standard Recovery - Dominican Republic (Follow-on)

EXPORT-IMPORT BANK OF THE US
WASHINGTON, DC
NAICS 541110
Posted Jul 2, 2026
No Set Aside

INL/Honduras: AFIS System

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 541512
Posted Jul 2, 2026

Water and Soil Environmental Testing and Observation

DEPT OF DEFENSE
CHAMBERSBURG, PA
NAICS 541380
Posted Jul 2, 2026
Small Business