Federal Contracting by NAICS Code · Professional Services
NAICS 541990: All Other Professional, Scientific, and Technical Services
Professional, scientific, or technical services not classified elsewhere — including translation, weather forecasting, and specialised consulting. A frequently-used residual code.
📊 Based on 169 real federal solicitations tracked under this code
Sector
Professional Services
Typical award value
$50K - $5M per award
Set-aside activity
Yes
Federal agencies that buy under NAICS 541990
These buyers award all other professional, scientific, and technical services work under this code most often. Set up alerts on WinAContract to catch their solicitations early, then draft your response in GovCon.
Set-asides used under NAICS 541990
Filtering opportunities by NAICS 541990 and your certification surfaces the bids where large primes are excluded. See our set-aside program guides for how each one works.
Common questions about NAICS 541990
Which federal agencies buy under NAICS 541990?
The agencies that most frequently post all other professional, scientific, and technical services solicitations under NAICS 541990 include Department of State, Department of Defense, USAID, Department of Justice, Department of Commerce. Tracking these buyers on WinAContract and drafting responses in GovCon is the fastest way to build a pipeline under this code.
Is NAICS 541990 eligible for small-business set-asides?
Yes. Solicitations under NAICS 541990 commonly use Small Business, 8(a), HUBZone, SDVOSB, WOSB. If your firm holds a matching socioeconomic certification, you can compete on set-aside opportunities where large businesses are excluded — typically a far less crowded field.
What is the typical contract value for NAICS 541990?
Federal awards under NAICS 541990 typically range $50K - $5M per award. Actual values vary widely by agency, scope, and contract vehicle — for example, individual IDIQ task orders versus standalone definitive contracts.
What NAICS codes are related to 541990?
Closely related codes include 541611 (541611 · Administrative Management and General Management Consulting Services), 541690 (541690 · Other Scientific and Technical Consulting Services), 541720 (541720 · Research and Development in the Social Sciences and Humanities). Registering in SAM.gov under every code that fits your capabilities widens the set of opportunities you'll match.
Related NAICS codes
Bidding on a NAICS 541990 opportunity?
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