Industry Information


The Standard Industrial Classification (SIC) code number was established in order to promote the comparability of statistics. The SIC code has been revised over the years and some code numbers have changed.

It is important to be careful when comparing data from different publishers and over a long period of time. Beginning with the 1997 Economic Census, the Census Bureau began using a new North American Industrial Classification System (NAICS) (pronounced "nakes") which is more closely aligned with international codes.

Many commercial publications have converted to NAICS, but some still use SIC codes.

Finding SIC/NAICS codes

Use the websites below to find SIC or NAICS codes for a particular industry. Also, many company profiles provide the SIC and/or NAICS code for the industry or industries a particular company belongs to.

Using NAICS codes

You can search for articles regarding a particular industry by their NAICS code(s) in the databases Proquest One Business and Business Source Complete.

Searching by NAICS in Business Source Complete

Search by NAICS code in Business Source Complete