NAICS 541690: Other Scientific and Technical Consulting Services — Federal Contracts

What NAICS 541690 covers

The North American Industry Classification System (NAICS) is the standard the federal government uses to classify the industry of every contractor and every procurement. NAICS 541690 identifies businesses primarily engaged in other scientific and technical consulting services. When a contracting officer publishes a solicitation on SAM.gov, they tag it with the NAICS code that best matches the work — which is why getting your NAICS portfolio right inside SAM is the single most important step for showing up in agency searches.

Who buys NAICS 541690?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 45 contractors tracked in the Mindy contractor database:

1. 1Centers For Disease Control And Prevention
2. 2Administration For Strategic Preparedness And Response
3. 3Centers For Medicare And Medicaid Services
4. 4Defense Advanced Research Projects Agency (DARPA)
5. 5Bureau Of The Fiscal Service

Source: aggregated from the Mindy contractor database (prime contractor disclosures via SBA + agency directories).

Top contractors in NAICS 541690

The largest prime contractors associated with NAICS 541690, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Booz Allen Hamilton INC

   $10.7B total reported value
2. 2
   Deloitte Consulting LLP

   $6.6B total reported value
3. 3
   Johns Hopkins University

   $2.8B total reported value
4. 4
   KBR Wyle Services LLC

   $2.1B total reported value
5. 5
   Mantech International Corporation

   $2.0B total reported value
6. 6
   Asgn Incorporated

   $752.9M total reported value
7. 7
   Leidos Holdings INC.

   $646.0M total reported value
8. 8
   Research Triangle Institute INC

   $546.0M total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 541690). Use as a ranking signal, not as a per-NAICS award total.