NAICS 541690Other Scientific and Technical Consulting Services
Size Standard
$19 million
CMMC Level
Level 2 (most contracts)
Key Agencies
DoD, DARPA, DOE, NASA
Overview
Establishments primarily engaged in providing advice and assistance to businesses and other organizations on scientific and technical issues not elsewhere classified. Defense contractors use this code for technical advisory services, independent verification and validation (IV&V), and subject matter expert support across multiple disciplines.
Common Contract Types
Contracting Agencies
Frequently Asked Questions
What CMMC level is required for NAICS 541690?
Level 2 is required for most technical consulting contracts that involve CUI such as test data, technical assessments, or system evaluations. Advisory work limited to publicly available information may only need Level 1.
What is the SBA size standard for NAICS 541690?
The size standard is $19 million in average annual receipts.
How does NAICS 541690 differ from 541330?
NAICS 541330 covers engineering-specific services (design, analysis, testing), while 541690 covers broader scientific and technical consulting that may span multiple disciplines. If the work is primarily engineering, use 541330. If it crosses disciplines or is advisory in nature, 541690 is appropriate.
Related NAICS Codes
Related Guides
Free Compliance Tools
Track NAICS 541690 contract awards in real time
Get alerts when new other scientific and technical consulting services contracts are posted on SAM.gov. Free for members.
Get Free Contract AlertsUse this in your next proposal
This NAICS 541690 profile works once. ProposalOS bakes federal-contract math, color-team gating, and CUI-safe collaboration into every proposal you write.
See ProposalOSRelated: how much CMMC certification costs — DoD’s own priced figures