Standard Industrial Classification (SIC) codes are two, four or six-digit numerical codes assigned to companies to identify their primary business. The classification was developed in the 1930’s to assist in the collection, arrangement and analysis of statistical business data. SIC codes are also used to promote consistency in the presentation of data collected by the federal government, state agencies and private organizations. SIC classification defines industries in accordance with the structure of the economy
SIC codes cover the entire economic market: agriculture, forestry, fishing, hunting and trapping; mining; construction; manufacturing; transportation; communications, electric, gas and sanitary services; wholesale trade; retail trade; finance; insurance and real estate; personal, business, professional, repair, recreation and other services; and public administration. Over the years, SIC classification has been revised to reflect the economy's changing composition and organization.
How to read an SIC Code
The first two digits of the code identify the major industry group, the third digit identifies the industry group and the fourth digit identifies the industry.
ELECTRONIC & OTHER ELECTRIC EQUIPTMENT
ELECTRONIC COMPONENTS & ACCESSORIES
PRINTED CIRCUIT BOARDS
SIC codes are standardized to the four digit level. Six digit SIC codes were added to further specify the industry.
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