Professional, Scientific, and Technical Services

4,113 active contract opportunities

4,113

Active Opportunities

205

Posted Last 7 Days

30 days

Avg Response Window

Top Industries

  • Engineering Services700
  • Other Computer Related Services617
  • Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)559
  • All Other Professional, Scientific, and Technical Services308
  • Administrative Management and General Management Consulting Services215

Set-Aside Distribution

  • 2699
  • Small Business466
  • No Set Aside437
  • SDVOSB320
  • 8(a) Sole Source57

Top Locations

  • VA639
  • DC515
  • MD370
  • CA231
  • CO219

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

Fast and Curious Proposers Day

DEPT OF DEFENSE
ARLINGTON, VA
NAICS 541715
Posted Jan 16, 2026
Due Jan 27, 2026
1 day left

R-HYDROGRAPHIC DATA COLLECTION IDIQ

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 541370
Posted Jan 16, 2026

Request for Information (RFI) for ITSSC Recompete

SOCIAL SECURITY ADMINISTRATION
BALTIMORE, MD
NAICS 541519
Posted Jan 16, 2026
Due Feb 13, 2026
18 days left

iSToRE Follow-On Request for Information

DEPT OF DEFENSE
SPRINGFIELD, VA
NAICS 541511
Posted Jan 16, 2026
Due Feb 13, 2026
18 days left

2027 FACILITIES ACQUISITION & ENGINEERING (FA&E) SUPPORT SERVICES

DEPT OF DEFENSE
WASHINGTON NAVY YARD, DC
NAICS 541330
Posted Jan 16, 2026
Due Feb 2, 2026
7 days left

HQMC DC P&R B&E Financial Management Support Services

DEPT OF DEFENSE
WASHINGTON, DC
NAICS 541611
Posted Jan 16, 2026
Due Feb 2, 2026
No Set Aside
7 days left

NEXT-GEN OPIR POLAR SOFTWARE DEPOT ACTIVATION GAP ANALYSIS

DEPT OF DEFENSE
ROBINS AFB, GA
NAICS 541330
Posted Jan 16, 2026
Due Jan 31, 2026
5 days left

Janus Transition IDIQ

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 541512
Posted Jan 16, 2026

R-Neutral Services Supporting the Nuclear Regulatory Commission Office of Enforce

NUCLEAR REGULATORY COMMISSION
ROCKVILLE, MD
NAICS 541990
Posted Jan 16, 2026
Due Mar 2, 2026
35 days left

Health Plan Innovation Support (HPIS) Task 1

DEPT OF DEFENSE
FALLS CHURCH, VA
NAICS 541611
Posted Jan 16, 2026

PD-1410-0219; Safety Engineer Services

DEPT OF DEFENSE
PHILADELPHIA, PA
NAICS 541990
Posted Jan 16, 2026
Due Feb 2, 2026
No Set Aside
7 days left

Video Encoder Support

LIBRARY OF CONGRESS
Washington, DC
NAICS 541512
Posted Jan 16, 2026
Due Feb 17, 2026
No Set Aside
22 days left

Air Defense Communication Services Air 5 Sources Sought Notice

DEPT OF DEFENSE
SCOTT AFB, IL
NAICS 541512
Posted Jan 16, 2026
Due Feb 16, 2026
21 days left

AWARD, Indefinite Delivery/Indefinite Quantity Contract for Architect-Engineer Design and Related Services at the NAVFAC SE

DEPT OF DEFENSE
NAS JACKSONVILLE, FL
NAICS 541330
Posted Jan 16, 2026
Small Business

PBLO and Depot Level Support - Justification and Approval

DEPT OF DEFENSE
NORTH CHARLESTON, SC
NAICS 541330
Posted Jan 16, 2026

14-CONNECTOR,DUMMY,DEL

DEPT OF DEFENSE
MECHANICSBURG, PA
NAICS 541519
Posted Jan 16, 2026
Due Feb 17, 2026
Small Business
22 days left

Surveillance of severe influenza-associated encephalopathy and related complications in US children

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 541380
Posted Jan 16, 2026
Due Feb 15, 2026
20 days left

B533-Hemodialysis Water Analysis | Wilkes Barre VA Medical Center

VETERANS AFFAIRS, DEPARTMENT OF
PITTSBURGH, PA
NAICS 541380
Posted Jan 16, 2026
Due Jan 27, 2026
Veteran-Owned Small Business
1 day left

B-Section 106 Consultation and Mitigation

INTERIOR, DEPARTMENT OF THE
BOULDER CITY, NV
NAICS 541620
Posted Jan 16, 2026

SUPPORT SERVICES FOR ENGINEERING, ANALYSIS, PROGRAM SUPPORT, WEAPONS SURETY, POLICY, AND COMPLIANCE

DEPT OF DEFENSE
WASHINGTON NAVY YARD, DC
NAICS 541330
Posted Jan 15, 2026