Many business publications and databases use industry codes to organize data. American companies are grouped into industries according to their Standard Industrial Classification code (SIC), established by the Office of the Budget & Management (OMB). In 1997, OMB announced its decision to adopt the North American Industry Classification System (NAICS pronounced Nakes) as the industry classification system used by the statistical agencies of the
North American Industry Classification System
The NAICS numbering system is a six-digit code. The first two digits designate the largest business sector. The third digit designates the sub sector, the fourth digit designates the industry group, and the fifth digit designates particular industries. The last digit designates national industries. The first five digits are generally the same in all three countries.
SECTOR |
31 |
Manufacturing |
SUBSECTOR |
311 |
Food Manufacturing |
INDUSTRY GROUP |
3112 |
Grain and Oilseed Milling |
NAICS INDUSTRY |
31121 |
Flour Milling and Malt Manufacturing |
|
311211 |
Flour Milling |
Standard Industrial Classification
The SIC numbering system uses is a four-digit code. The first two digits designate a general industrial sector. The third digit designates the industry group, while the last digit specifies a more focused industry segment.
MAJOR GROUP |
20 |
Food And Kindred Products |
INDUSTRY GROUP |
204 |
Grain Mill Products |
INDUSTRY |
2041 |
Flour and Other Grain Mill Products |
To begin your research, start by locating the codes for your industry.
North American Industry Classification System Lewis Ready Reference HF 1042 N6
http://www.census.gov/epcd/www/naics.html
This site allows keyword searches for industries, in addition to providing NAICS/SIC conversion tables.
Standard Industrial Classification Manual Lewis Ready Reference HF 1042 .S73 1987
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