When doing business research, it is useful to obtain the NAICS codes and SIC codes, which can help you retrieve statistical information produced by the Census and some databases.
NAICS (North American Industry Classification System) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy.
SIC (Standard Industrial Classification) is the industry classification system in which all Federal economic statistics were based on up to 1996. The NAICS system replaced this in 1997.
NAICS is the North American Industry Classification System, a standard implemented in 1997 for classifying industry, product, and establishment. Use this site to find your industry NAICS code. Click on the relevant code to read its description and to ensure that you have the right code.
Standard Industrial Classification (SIC) is an industry classification system in which all Federal economic statistics are based on up to 1996. Use this site to do a keyword search to find an SIC code for an industry.