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ENTRP 485 New Venture Planning

Finding the NAICS Code for your Industry

There are 20 primary industries in the NAICS system (below). In the NAICS hierarchy, there are 96 subcategories (3 digit codes) and 317 industry groups (4 digit groups).

To properly determine your primary and possible secondary NAICS code you must work down the classification scheme until you find the best fit for your business. It is often the case that you determine that there is really no perfect fit when you get down to the four digit level.

For each two, three and four digit level there is an option, usually the last one shown, that says, “Not otherwise classified.” This is the choice to pick when you don’t fit close enough to a specific code.

2 digit code

Broad Industry

11 Agriculture, forestry, fishing and hunting
21 Mining
22 Utilities
23 Construction
31–33 Manufacturing
42 Wholesale Trade
44–45 Retail Trade
48–49 Transportation and Warehousing
51 Information
52 Finance and Insurance
53 Real Estate and Rental and Leasing
54 Professional - Scientific and Technical Services
55 Management of Companies and Enterprises
56 Administrative and Support and Waste Management and
Remediation Services
61 Educational Services
62 Health Care and Social Assistance
71 Arts – Entertainment and Recreation
72 Accommodation and Food Services
81 Other Services (except Public Administration)
99 Industries Not Classified

Resources for Industry Research

Industry Research

Which industry does your company operate in?

Every industry in the United States is assigned a North American Industry Classification System (NAICS) code. NAICS codes are used for a variety of purposes, from access to business loans to applying for federal contracts

A business may have a primary NAICS code (the code that best fits the business and describes its primary activities) and a secondary, or even third code (meaning the business also has characteristics of additional industries).

Many business databases will assign NAICS codes to articles and company profiles. Below is an example from Business Source Complete where a NAICS code is assigned to an article. Once you know the NAICS code for your company's industry, you can also search business databases by NAICS code.

There is a second older classification system known as Standard Industrial Classification (SIC) code that is still used but has been replaced, for most purposes, by the NAICS code.

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