Professional, Scientific, and Technical Services

5,675 active contract opportunities

5,675

Active Opportunities

5,210

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)706
  • All Other Professional, Scientific, and Technical Services467
  • Administrative Management and General Management Consulting Services317

Set-Aside Distribution

  • 3672
  • Small Business650
  • No Set Aside643
  • SDVOSB449
  • 8(a) Sole Source64

Top Locations

  • VA846
  • DC721
  • 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

Corydon Well Replacement Project – Professional Design, Bidding Support and Engineering Services During Construction

Small Business Administration (SBA)
CA
NAICS 541330
Posted Aug 1, 2026
Due Aug 12, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

SEEKING QUALIFIED SUBCONSULTANTS IN RIVERSIDE COUNTY/SOCAL TO SUPPORT WELL REPLACEMENT PROJECT WITH WATER DISTRICT

Small Business Administration (SBA)
CA
NAICS 541330
Posted Jul 30, 2026
Due Aug 7, 2026
Small Business (SB), Small Disadvantaged Business (SDB), Women-Owned Small Business (WOSB), Veteran-Owned Small Business (VOSB), SBA-certified Service-Disabled Veteran-Owned Small Business (SDVOSB), Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Disadvantaged Veteran Business Enterprise (DVBE) – State of California, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Corydon Well Replacement Project - Professional Design, Bidding Support, Engineering Services During Construction

Small Business Administration (SBA)
CA
NAICS 541330
Posted Jul 29, 2026
Due Sep 1, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Corydon Well Replacement Project – Professional Design, Bidding Support and Engineering Services During Construction

Small Business Administration (SBA)
CA
NAICS 541690
Posted Jul 28, 2026
Due Sep 1, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation, Minority Business Enterprise (MBE) – NMSDC certification (non-federal), Woman Business Enterprise (WBE) – WBENC certification (non-federal)

Corydon Well Replacement (C2305)

Small Business Administration (SBA)
CA
NAICS 541330
Posted Jul 28, 2026
Due Aug 28, 2026
Disadvantaged Business Enterprise (DBE) – Dept of Transportation

Reference Laboratory Testing Services at Naval Hospital, Guam

DEPT OF DEFENSE
CAMP PENDLETON, CA
NAICS 541380
Posted Jul 28, 2026
Due Aug 4, 2026
No Set Aside

B-BIOLOGICAL ANALYSIS-WATER SAMPLES - IDIQ

INTERIOR, DEPARTMENT OF THE
BOULDER CITY, NV
NAICS 541380
Posted Jul 28, 2026

Indefinite Delivery/Indefinite Quantity Contract for Architect-Engineer Services for Utility Projects at Various Locations under the Cognizance of Naval Facilities Engineering Systems Command, Hawaii

DEPT OF DEFENSE
PEARL HARBOR, HI
NAICS 541330
Posted Jul 28, 2026
Due Sep 3, 2026
No Set Aside

Vindicator V5 Hardware Upgrade.

DEPT OF DEFENSE
APO, AP
NAICS 541519
Posted Jul 28, 2026
Due Aug 6, 2026

JOFOC Bridge Extension for R3 START VI 68HE0320D0003

ENVIRONMENTAL PROTECTION AGENCY
PHILADELPHIA, PA
NAICS 541620
Posted Jul 27, 2026

Environmental, Health and Safety (EHS) Services

STATE, DEPARTMENT OF
WASHINGTON, DC
NAICS 541620
Posted Jul 27, 2026
Due Aug 3, 2026
8(a) Competed

Bridge - Technology Support Services

DEPT OF DEFENSE
KEYPORT, WA
NAICS 541513
Posted Jul 27, 2026

Call for Solutions - Enterprise Transformation Capability for the Army's Organic Industrial Base (OIB)

DEPT OF DEFENSE
REDSTONE ARSENAL, AL
NAICS 541330
Posted Jul 27, 2026
Due Aug 4, 2026

Non-personal professional, engineering, technical assessments, special studies, and management support services required by the Strategic Missions Systems Engineering Division (GXP) of the Global Strategic Deterrent Department at NSWC Crane.

DEPT OF DEFENSE
CRANE, IN
NAICS 541330
Posted Jul 27, 2026
Due Aug 24, 2026
Small Business

7A-CO DIV OF IRTM SPLUNK LICENSE

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 541519
Posted Jul 27, 2026

Fiscal Years 2027-2029 Improved Bradley Acquisition Subsystem (IBAS) Engineering Services

DEPT OF DEFENSE
REDSTONE ARSENAL, AL
NAICS 541330
Posted Jul 27, 2026
No Set Aside

Missile Segment Enhancement (MSE) Containerized Launcher (CL) and Remote Interceptor Guidance 360 Degrees (RIG-360) Containerized System (CS) Phase 2 Program

DEPT OF DEFENSE
REDSTONE ARSENAL, AL
NAICS 541330
Posted Jul 27, 2026

R-CA-SAN DIEGO NWRC-COLLABORATIVE EVALUATI

INTERIOR, DEPARTMENT OF THE
Falls Church, VA
NAICS 541611
Posted Jul 27, 2026

Warehouse Support Services Recompete

DEPT OF DEFENSE
QUANTICO, VA
NAICS 541330
Posted Jul 27, 2026
Due Aug 18, 2026
SDVOSB

NAVSUP Virtual Industry Day - NETSAFA International Training Center

DEPT OF DEFENSE
NORFOLK, VA
NAICS 541330
Posted Jul 27, 2026
Due Aug 3, 2026