NAICS code lookup
Type a company name or website. Get its NAICS and SIC codes with their descriptions.
Crustdata's classification by main activity. The codes on a company's own SEC, SAM.gov or tax filings can differ.
SIC code (1987)
- 5812 Eating Places58 Eating and Drinking Places. Division G, Retail Trade
Public company? The SIC code on its own filings is on SEC EDGAR.
Other industry tags
Tags, not official codes.
Browse 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
What the lookup gives you
Most NAICS lookups stop at a number. This one shows what each digit means and which companies share the code, because it runs on Crustdata's own company data.
Free, on this page
- NAICS codeThe primary code, 2022 edition
- Full hierarchySector to national industry, with titles
- SIC codesEvery one on file, with its group
- Other industry tagsHow else the company is tagged
- Company factsWebsite, headquarters and size
- Companies per codeThe largest companies for 200 codes
With a free account
- Codes in bulkThousands of companies at once
- Search by codeEvery company with a NAICS or SIC code
- Full company dataHeadcount, funding, hiring and more
- API and MCPUse it in your code, Claude or ChatGPT
How this works
Like a NAICS code, each step narrows it down.
- 72We match the company
From its name or website, against 60M+ companies. Several close matches? You pick.
- 722We read its codes
Its primary NAICS code and every SIC code on file, plus its other industry tags.
- 722513We add the official titles
Each level of the code gets its title from the NAICS 2022 and SIC 1987 manuals.
# 1. Find the company (free)
curl -X POST https://api.crustdata.com/company/identify \
-H "Authorization: Bearer $CRUSTDATA_API_KEY" \
-H "x-api-version: 2025-11-01" \
-H "Content-Type: application/json" \
-d '{ "domains": ["acme.com"] }'
# 2. Read its codes
curl -X POST https://api.crustdata.com/company/enrich \
-H "Authorization: Bearer $CRUSTDATA_API_KEY" \
-H "x-api-version: 2025-11-01" \
-H "Content-Type: application/json" \
-d '{
"crustdata_company_ids": [12345],
"fields": ["basic_info", "taxonomy", "locations"]
}'
# taxonomy.primary_naics_detail.naics_code: "722513"
# taxonomy.sic_detail_list[].sic_code: "5812"Or build your own
Two API calls: identify the company, then enrich it with its taxonomy. Run them from your code, a spreadsheet, or Claude and ChatGPT through the MCP. Built with Crustdata. Get your own API key and build your own.
Questions
What is a NAICS code?
What is my NAICS code?
Which NAICS code do I put on SAM.gov or an SBA form?
Who assigns NAICS codes?
How do I find a company's NAICS code?
What is the difference between NAICS and SIC codes?
How do I look up a company's SIC code?
How many digits is a NAICS code?
Can a company have more than one code?
Is this NAICS code lookup free?
What if a company has no code?
What year are these codes?
How do I find all companies with a NAICS code?
Where does the data come from?
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