All Other Professional, Scientific, and Technical Services
535 active contract opportunities
535
Active Opportunities
441
Posted Last 7 Days
30 days
Avg Response Window
Top Industries
- All Other Professional, Scientific, and Technical Services531
- All Other Professional, Scientific, and Technical Services4
Set-Aside Distribution
- 368
- Small Business55
- No Set Aside43
- SDVOSB26
- Small Business Set Aside - Total21
Top Locations
- CO157
- DC51
- VA50
- MD42
- TX33
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.
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NAICS 541990
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Small Business Set Aside - TotalNotice of Intent to Sole Source - Defensive Counterintelligence & Insider Threat Program Support Services - PHK ENTERPRISES, LLC
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NAICS 541990
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Small Business Set Aside - TotalUSAC RFP: Lifeline Programs National Verifier (NV) O&M Support
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NAICS 541990
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Scientific Research on FVCOM Modeling of Lake Erie
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NAICS 541990
Posted Aug 20, 2026
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No Set AsideW50SLF26QA014 - Optimizing the Human Weapon System
DEPT OF DEFENSE
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NAICS 541990
Posted Aug 20, 2026
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DEPT OF DEFENSE
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NAICS 541990
Posted Aug 20, 2026
Due Aug 25, 2026
Small Business Set Aside - TotalSECO IT
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Posted Aug 19, 2026
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No Set AsideRefining seasonal cetacean density models
COMMERCE, DEPARTMENT OF
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NAICS 541990
Posted Aug 19, 2026
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Small Business Set Aside - TotalR-26-TAR400-BW-SC-DEN-Y1
INTERIOR, DEPARTMENT OF THE
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NAICS 541990
Posted Aug 19, 2026
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INTERIOR, DEPARTMENT OF THE
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NAICS 541990
Posted Aug 19, 2026
F-LOWER PAYETTE STREAM GAGING
INTERIOR, DEPARTMENT OF THE
GRAND COULEE, WA
NAICS 541990
Posted Aug 19, 2026
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INTERIOR, DEPARTMENT OF THE
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NAICS 541990
Posted Aug 19, 2026
Due Aug 26, 2026
Small Business Set Aside - TotalJ-GC26 - MAINTENANCE OF JANUS FIRE
INTERIOR, DEPARTMENT OF THE
SALT LAKE CITY, UT
NAICS 541990
Posted Aug 19, 2026
Event Data Recorders
STATE, DEPARTMENT OF
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NAICS 541990
Posted Aug 19, 2026
Due Sep 9, 2026
Small Business Set Aside - TotalH242-FY26 FIRE EXTINGUISHER TESTING - Battle Creek MI
VETERANS AFFAIRS, DEPARTMENT OF
DAYTON, OH
NAICS 541990
Posted Aug 19, 2026
Due Sep 3, 2026
SDVOSBAward Notice - Contracts Disputes Act Claims Analysis Support
HEALTH AND HUMAN SERVICES, DEPARTMENT OF
ROCKVILLE, MD
NAICS 541990
Posted Aug 19, 2026
Amendment 0002/RFQ CAFC26-0008 Tactile Project. Exhibition Design, Fabrication, and Installation Services for Interactive Educational Exhibits
ADMINISTRATIVE OFFICE OF THE US COURTS
WASHINGTON, DC
NAICS 541990
Posted Aug 19, 2026
Due Aug 26, 2026
