All NAICS codes
20 sectors, 1,012 codes. Pick a sector to see every code in it.
- 11Agriculture, Forestry, Fishing and Hunting64 codes · 29K companies
- 21Mining, Quarrying, and Oil and Gas Extraction21 codes · 19K companies
- 22Utilities14 codes · 38K companies
- 23Construction31 codes · 202K companies
- 31-33Manufacturing346 codes · 622K companies
- 42Wholesale Trade69 codes · 126K companies
- 44-45Retail Trade57 codes · 168K companies
- 48-49Transportation and Warehousing57 codes · 98K companies
- 51Information29 codes · 292K companies
- 52Finance and Insurance35 codes · 229K companies
- 53Real Estate and Rental and Leasing24 codes · 145K companies
- 54Professional, Scientific, and Technical Services49 codes · 1.5M companies
- 55Management of Companies and Enterprises3 codes · 4K companies
- 56Administrative and Support and Waste Management and Remediation Services44 codes · 209K companies
- 61Educational Services17 codes · 312K companies
- 62Health Care and Social Assistance39 codes · 334K companies
- 71Arts, Entertainment, and Recreation25 codes · 126K companies
- 72Accommodation and Food Services15 codes · 120K companies
- 81Other Services (except Public Administration)44 codes · 196K companies
- 92Public Administration29 codes · 43K companies
How NAICS codes work
NAICS codes have two to six digits, and each digit narrows the code down. The first two are the sector, the third the subsector, the fourth the industry group, the fifth the NAICS industry and the sixth the national industry. These are the 2022 codes from the US Census Bureau, the edition in use in 2026. Forms such as SAM.gov registrations, SBA loans and tax returns ask for the six-digit code that matches a business's main activity.
Most common NAICS codes
The codes the most companies carry, each with the largest companies under it.
- 541512Computer Systems Design Services
- 541511Custom Computer Programming Services
- 541810Advertising Agencies
- 541613Marketing Consulting Services
- 611430Professional and Management Development Training
- 541430Graphic Design Services
- 611310Colleges, Universities, and Professional Schools
- 541611Administrative Management and General Management Consulting Services
- 541110Offices of Lawyers
- 512110Motion Picture and Video Production
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