All Other Professional, Scientific, and Technical Services

581 active contract opportunities

581

Active Opportunities

512

Posted Last 7 Days

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Top Industries

  • All Other Professional, Scientific, and Technical Services576
  • All Other Professional, Scientific, and Technical Services5

Set-Aside Distribution

  • 418
  • Small Business54
  • No Set Aside42
  • SDVOSB30
  • Small Business Set Aside - Total12

Top Locations

  • CO173
  • DC61
  • VA61
  • MD53
  • TX34

About NAICS54199

The North American Industry Classification System (NAICS) code 54199 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.

R-Counter Nuclear Smuggling System Deployment (CNSSD

ENERGY, DEPARTMENT OF
ALBUQUERQUE, NM
NAICS 541990
Posted Jul 24, 2026

R-NEW SSC CELIA RATELIFF

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jul 24, 2026

Notice of Intent to Sole Source Lori Carson Consulting LLC

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
BETHESDA, MD
NAICS 541990
Posted Jul 24, 2026

R408-Radiation Oncology Assessment Services

VETERANS AFFAIRS, DEPARTMENT OF
LINTHICUM, MD
NAICS 541990
Posted Jul 23, 2026
Small Business

H-NCAO Fire Extinguisher and CO2 Services

INTERIOR, DEPARTMENT OF THE
SACRAMENTO, CA
NAICS 541990
Posted Jul 23, 2026

H-Aquatic Invasive Species Watercraft Inspection and

INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 541990
Posted Jul 22, 2026

TO14- ADB Microbiologist and Health Scientist Support Services

HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ATLANTA, GA
NAICS 541990
Posted Jul 21, 2026
Small Business

H-OLYM Fire Extinguisher inspection, service and rep

INTERIOR, DEPARTMENT OF THE
PORT ANGELES, WA
NAICS 541990
Posted Jul 17, 2026

One Acquisition Solution for Integrated Services Plus (OASIS+) 8(a) Small Business Set-Aside Continuously Open Solicitation

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
8(a) Competed

One Acquisition Solution for Integrated Services Plus (OASIS+) Historically Underutilized Business Zone (HUBZone) Small Business Set-Aside Continuously Open Solicitation

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
HUBZone

One Acquisition Solution for Integrated Services Plus (OASIS+) Service-Disabled Veteran-Owned Small Business (SDVOSB) Set-Aside Continuously Open Solicitation

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
SDVOSB

One Acquisition Solution for Integrated Services Plus (OASIS+) Women-Owned Small Business (WOSB) Set-Aside Continuously Open Solicitation

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
WOSB

One Acquisition Solution for Integrated Services Plus (OASIS+) Total Small Business Set-Aside Continuously Open

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
Small Business

One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted Continuously Open Solicitation

GENERAL SERVICES ADMINISTRATION
Washington, DC
NAICS 541990
Posted Jul 17, 2026
Due Jan 11, 2027
No Set Aside

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

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

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

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

Crash Investigation Sampling System (CISS) Injury Coding Center (ICC)

TRANSPORTATION, DEPARTMENT OF
WASHINGTON, DC
NAICS 541990
Posted Jul 17, 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 Jul 15, 2026
No Set Aside

U-Intent to Sole Source-DSEND Cert and Training

INTERIOR, DEPARTMENT OF THE
HERNDON, VA
NAICS 541990
Posted Jul 14, 2026

B-STUDENT CONTRACT - NICOLAS DIAL

INTERIOR, DEPARTMENT OF THE
DENVER, CO
NAICS 541990
Posted Jul 14, 2026