NAICS Codes Lookup - North American Industry Classification System

Search or browse the North American Industry Classification System. Verify the best-fit NAICS using definitions, included/excluded boundaries, and hierarchy context.

What is a NAICS Code · How To Find My NAICS Code ·
Instructions
Governed classification reference since 1998 · Full NAICS coverage · Included/excluded boundary checks

What is the NAICS Code Lookup / Directory?

SICCODE.com's NAICS Code Lookup / Directory provides a fast, structured way to identify and verify official 2- to 6-digit NAICS classifications. Search by keyword or known code to locate candidate NAICS codes, then confirm the correct fit by reviewing definitions, included and excluded activities, and parent-child hierarchy context. For step-by-step browsing, select a sector below to drill down from top-level industries to the most specific 6-digit NAICS code.

🔹 Direct Lookup

Find specific NAICS codes by keyword or number and open the code page to review definitions and boundaries.

🔹 Steps to Detail

Browse by sector and narrow step-by-step from 2-digit industries to precise 6-digit NAICS classifications.

🔹 Trusted Reference

Uses U.S. Census-published NAICS definitions with included and excluded activity guidance to reduce misclassification.

🔹 Governed Classification Guidance

Apply establishment-level rules and primary-activity logic to support consistent, defensible NAICS assignment.

About NAICS Codes

NAICS Codes, or North American Industry Classification System Codes, are essential for categorizing business activities across various industries. As of the latest NAICS 2022 revision, there are 1,012 distinct industries classified under this system. These codes are not only vital for statistical purposes but are also frequently utilized by state governments to determine eligibility for tax incentives and contract opportunities based on specific industries.

Businesses can leverage our NAICS code lookup tool to identify and connect with companies within targeted sectors, enhancing their marketing strategies. By pinpointing the NAICS codes of their top clients, businesses can effectively expand their outreach and attract more customers within those industries.

More About NAICS Codes

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How Do I Find My NAICS Code How Do I Find A Company's NAICS Code

Choose a Sector Below

Start with the sector that best matches the establishment's primary activity, then narrow by business model and scope to reach the correct 6-digit NAICS code.

Tip: NAICS is assigned at the establishment level. Multi-location companies may have different NAICS codes by location.

11
Agriculture, Forestry, Fishing, Hunting
21
Mining, Quarrying, Oil, Gas Extraction
22
Utilities
23
Construction
31-33
Manufacturing
31 - Food, Beverage, Tobacco, Apparel, Leather, & Allied Products, Textile Mills, Textile Product Mills 32 - Paper, Printing & Related Support Activities, Petroleum & Coal Products, Chemical, Plastics & Rubber Products, Nonmetallic Mineral Products 33 - Primary Metal, Fabricated Metal Products, Machinery, Computer & Electronic Products, Electrical Equipment, Appliance, & Component, Transportation Equipment, Furniture & Related Products, Miscellaneous
42
Wholesale Trade
44-45
Retail Trade
44 - Motor Vehicle & Parts Dealers, Furniture, Electronics/Appliances, Building Material, Garden Supplies, Food, Beverages, Health Care, Gas Stations 45 - Sporting Goods, Musical Instruments, Books, General Merchandise, Miscellaneous, Nonstore Retailers
48-49
Transportation and Warehousing
48 - Air, Rail, Water, Truck, Transit & Ground Passenger, Pipeline, Scenic/Sightseeing, & Support Activities 49 - Postal Service, Couriers & Messengers, Warehousing & Storage
51
Information
52
Finance and Insurance
53
Real Estate, Rental, Leasing
54
Professional, Scientific, Tech. Services
55
Mgmt. of Companies & Enterprises
56
Administrative, Support, Waste Mgmt., Remediation Services
61
Educational Services
62
Health Care and Social Assistance
71
Arts, Entertainment, Recreation
72
Accommodation and Food Services
81
Other Services (except Public Administration)
92
Public Administration

Conversions / Cross-References

Frequently Asked Questions

  • 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 based on the activity generating the largest share of output (commonly revenue). If revenue data is unavailable, use a consistent proxy such as hours worked, payroll, or headcount and document your method.

  • 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.

  • 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.

  • Does NAICS change over time?

    Yes. NAICS is updated on a revision cycle, and definitions or boundaries can change. For data stability, store the NAICS year (vintage) and document any revision-driven changes.