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Industry Information: Industry Codes

Guide to industry information sources.

Industry Codes and Researching Industries


Industry codes (NAICS, SIC) are hierarchic, numeric schemes to define and distinguish one industry from another:

About Industry Classification Codes

NAICS codes 
SIC codes

Look at trade journals, i.e. journals published by industry associations, association websites, industry/investment analysts’ reports, nonprofit and government information sources such as EPA Industry Letters, EIA reports, Economic Census, market research reports, and commercial industry reports.