The North American Industry Classification System (NAICS) assigns codes to classify businesses by industry. In federal contracting,
NAICS codes determine small business size standards (by revenue or employee count), influence set-aside eligibility, and guide
market research. Each solicitation lists a primary NAICS; offerors must confirm alignment between their capabilities and the
selected code. Accurate NAICS alignment affects teaming, eligibility, and competitive landscape. Businesses should maintain their
NAICS codes in SAM.gov and ensure they match their offerings.
- Procurement & RFP Basics
NAICS Code
Industry classification used to determine small business size standards and market segments.
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Related Glossary Terms
Industry classification used to determine small business size standards and market segments.
Procurement reserved for eligible small businesses under SBA programs.
Mandatory vendor registration in the federal System for Award Management with a Unique Entity Identifier.
Systematic process for understanding available products, services, and industry capabilities.