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Business & Economics: Industry Codes (NAICS/SIC)

Useful web resources

SIC Codes

2 ways to search SIC:

  • Keyword search. (note: terms must match exactly) Tip: If you're having difficulty, try using truncation. For example, type camp* to search campgrounds, campsites, camping, etc.
  • Browse. Click on the SIC Manual link to view all industry sectors.

Standard Industrial Classification (SIC) codes are four-digit codes used to identify an industry. Many resources use these codes to identify a company’s activities, index companies by activity, and to define industry data and information. For information on the history of the SIC codes and information about its replacement, the NAICS, visit the NAICS Association web site at left. An excellent web site for a list of SIC codes and to search for a code is the OSHA site from the U.S. Department of Labor.