Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Industry Information Resource Guide: SIC / NAICS

Find the Primary Code for an Industry

Find the Primary Code for a Company

About the SIC and NAICS Codes

Established in 1938, and most recently revised in 1987, the Standard Industrial Classification (SIC) was developed to create a uniform system of classification for business establishments, and thereby to facilitate the comparability of statistics and data "describing various facets of the U.S. economy." In 1997 the Office of Management and Budget (OMB) adopted the North American Industry Classification System (NAICS) to replace the 1987 Standard Industrial Classification in the collection of industry statistics.

The NAICS codes (North American Industry Classification System) were established in 1997, and updated in 2002, 2007, and 2012. They are a result of the North American Free Trade Agreement (NAFTA), and they apply to Canada, Mexico, and the United States. The purpose of replacing the SIC with the NAICS codes is to allow for industry averages and ratios to be comparable between all three North American nations, and to include newer industries not covered by the SIC codes, such as services, high tech, and biotechnology.


Translations from SIC to NAICS, and NAICS to SIC

Print SIC / NAICS Manuals