NAICS codes by sector
NAICS (North American Industry Classification System) sorts every US business into one of 20 sectors, then down to a six-digit code. Pick your sector, or describe your business and we'll suggest the code.
- 11Agriculture, Forestry, Fishing and Hunting64 codes
- 21Mining, Quarrying, and Oil and Gas Extraction21 codes
- 22Utilities14 codes
- 23Construction31 codes
- 31-33Manufacturing346 codes
- 42Wholesale Trade69 codes
- 44-45Retail Trade57 codes
- 48-49Transportation and Warehousing57 codes
- 51Information29 codes
- 52Finance and Insurance35 codes
- 53Real Estate and Rental and Leasing24 codes
- 54Professional, Scientific, and Technical Services49 codes
- 55Management of Companies and Enterprises3 codes
- 56Administrative and Support and Waste Management and Remediation Services44 codes
- 61Educational Services17 codes
- 62Health Care and Social Assistance39 codes
- 71Arts, Entertainment, and Recreation25 codes
- 72Accommodation and Food Services15 codes
- 81Other Services (except Public Administration)44 codes
- 92Public Administration29 codes
How NAICS codes work
Each extra digit narrows the industry: the first two digits are the sector, three the subsector, four the industry group, five the industry and six the US national industry. Forms such as SAM.gov registration, SBA loan applications and many state business filings ask for the six-digit code.
NAICS is revised every five years. The codes here are the 2022 edition, which is current until the 2027 edition takes effect for data from 1 January 2027.
Data last changed November 14, 2026. Source: US Census Bureau 2022 NAICS structure.