NAICS 541690
Other Scientific and Technical Consulting Services
Sector: Professional, Scientific, and Technical Services
SBA size standard
$19.0M
Top buying agencies
- Department of Health and Human Services
- Department of Defense
- Department of Agriculture
Open opportunities in NAICS 541690
Updated August 24, 2026213active solicitations
Most active buyers
- Department of Health and Human Services32
- Department of Veterans Affairs30
- Department of Defense29
- United States Trade and Development Agency23
- Interior, Department of the22
Most common set-asides
- Unrestricted77
- No Set aside used65
- Total Small Business Set-Aside (FAR 19.5)32
- Service-Disabled Veteran-Owned Small Business Set Aside15
- Small Business Set Aside - Total13
Counts reflect active contract opportunities ingested from SAM.gov and refresh daily. Figures move as solicitations are posted, amended, and closed.
Description
Scientific and technical advisory services not classified elsewhere, including agricultural, biological, chemical, physics, and safety consulting.
Common uses in federal contracting
- Safety and occupational health consulting
- Scientific advisory and peer review support
- Specialized technical studies
How to use this NAICS
Add NAICS 541690 to your SAM.gov entity profile to be identified as a provider in this industry. If you are a small business under the $19.0M size standard, you qualify for small-business set-asides in this code.
See our guide to federal set-asides for a walk-through of which programs you can stack on top of this NAICS.