All Other Professional, Scientific, and Technical Services
576 active contract opportunities
576
Active Opportunities
507
Posted Last 7 Days
30 days
Avg Response Window
Top Industries
- All Other Professional, Scientific, and Technical Services576
Set-Aside Distribution
- 416
- Small Business53
- No Set Aside41
- SDVOSB30
- Small Business Set Aside - Total12
Top Locations
- CO173
- VA61
- DC58
- MD53
- TX34
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.
Related Industries
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 BusinessH-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 BusinessH-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) CompetedOne 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
HUBZoneOne 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
SDVOSBOne 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
WOSBOne 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 BusinessOne 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 AsideR-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 AsideU-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
R-MALU RM KFH SCLC HFRS
INTERIOR, DEPARTMENT OF THE
ATLANTA, GA
NAICS 541990
Posted Jul 14, 2026
U-On-site Advanced Asbestos Fiber Analysis Training
ENVIRONMENTAL PROTECTION AGENCY
Washington, DC
NAICS 541990
Posted Jul 14, 2026
