NAICS & SIC Code Lookup
Free NAICS code lookup by company name or website. Get any company's 6-digit NAICS 2022 code and 4-digit SIC code with confidence scores for SAM.gov, vendor onboarding, compliance, and CRM enrichment.
How this NAICS code lookup works
Most NAICS lookup tools make you search a static census table and guess which entry describes the business. This tool works from the company itself: it resolves the company name to its website, reads what the company actually does (homepage, product pages, About page, structured data), and matches that against the official NAICS 2022 and SIC taxonomies. You get ranked codes with confidence levels instead of a keyword search over 1,000+ table rows.
When you need a NAICS or SIC code
NAICS codes are required for SAM.gov registration and federal contract bids, SBA loan applications and size standards, IRS business filings, and insurance underwriting. SIC codes still appear in SEC EDGAR filings, Dun & Bradstreet records, and older CRM and compliance systems. Sales and data teams also use both to segment markets, score leads, and enrich CRM records by industry.
Lookup by company name vs by website
Company names are ambiguous: "Apple" matches a tech giant, a record label, and a thousand small businesses. A website domain is unique, so classifying from the domain is nearly always more accurate. If you have both, search the domain; if you only have a name, the tool will resolve it to the most likely company first.
Classify companies at scale with the API
This tool is powered by the Context.dev NAICS Code Lookup API and SIC Code Lookup API. Programmatic NAICS and SIC lookups require access to be enabled for your organization. Brand profiles, Styleguide typography, and web scraping are available in the default API catalog.
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