NAICS Code Lookup & Directory

Find official NAICS codes and detailed Extended NAICS categories, and see available U.S. companies.

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  1. Find your industries

    Browse or search for the codes that match your target.

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Why build a list? Find companies for sales, direct mail, phone outreach, email marketing, or market research.

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Browse NAICS industries

Open a sector to see its industries. Click a name for details, or + Add to build your list.

20 sectors · NAICS 2022

Find and explore NAICS classifications

The North American Industry Classification System (NAICS) classifies business establishments by their primary economic activity. Published in the U.S. by the Census Bureau, NAICS 2022 contains 20 sectors, 96 subsectors, and 1,012 six-digit national industries. Codes become more specific as digits are added: 31–33 is Manufacturing, 311 is Food Manufacturing, and 311111 is Dog and Cat Food Manufacturing.

NAICS codes are used for government statistics, business research, contracting, and marketing. SICCODE.com also provides detailed 8-digit Extended NAICS categories and available U.S. company counts to help businesses research industries and build targeted company lists.

NAICS classifies individual establishments, so different locations of the same company may have different industry codes.

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NAICS reference & conversion tools

NAICS definitions and structure Find your NAICS code Find a company's NAICS code SIC to NAICS conversion NAICS to SIC conversion SIC vs. NAICS codes
Industry definitions

NAICS 2022, published by the U.S. Census Bureau, the current official U.S. edition. Official NAICS reference →

Company counts

SICCODE.com business database, U.S. and Canada. Counts show companies available for lists, not government industry totals. About our business data →Classification methodology →

Common questions about NAICS codes

How do I find my company's NAICS code?

Search by keyword for your main business activity, compare the definitions and included activities, and choose the code that matches your primary source of revenue. You can also look up a company by name, or ask our classification team to review your business. Find your NAICS code →

Is NAICS assigned to a company or a location?

NAICS is assigned to an establishment (a single operating location). Multi-location organizations can have different NAICS codes by site.

What if an establishment performs multiple activities?

Classify the establishment based on its primary economic activity. When multiple activities exist, evaluate their relative economic significance using appropriate measures such as value added, revenue, or employment.

Can I choose a NAICS code myself?

Yes. Businesses commonly self-select NAICS codes, but selections should be verified against official definitions and included/excluded activity guidance to avoid misclassification.

Who assigns NAICS codes?

There is no single official registry. Businesses usually select their own codes for forms and filings, and government agencies assign codes for their own statistical and administrative purposes, so a business can appear under different codes in different records. SICCODE.com assigns codes to the companies in its database using official NAICS definitions.

Why do some NAICS codes sound similar?

Many NAICS codes describe related activities. The correct choice depends on the primary activity, business model, and boundary rules, not just keywords in the code title.

Is NAICS the same in the U.S., Canada, and Mexico?

The three countries share the same structure through the 5-digit level. The 6-digit national industries can differ by country, so U.S. NAICS and NAICS Canada codes don't always match at the most detailed level.

When will NAICS codes be updated next?

NAICS is reviewed every five years to reflect changes in the economy. NAICS 2022 remains the current official U.S. classification as of 2026, with the next revision planned for 2027. The U.S. Office of Management and Budget oversees revisions, which may introduce new industries, modify definitions, or change existing codes. For data stability, store the NAICS year with your records and verify which edition applies to your reporting requirements.

Can I get a list of companies by NAICS code?

Yes. Select one or more NAICS codes, narrow by state and company size, and request a free count, pricing, and a sample. Lists can include company details, phone numbers, websites, and contacts. Build a list →