Q. How can I find a listing of SIC or NAICS Codes and other industry classifications?

You can search by keyword for NAICS or SIC codes at the following links:

• North American Industry Classification System (NAICS)
• Standard Industrial Classification Manual (SIC)

To find the corresponding NAICS and SIC codes, go to the NAICS website. Click on the "Reference Files" drop-down menu and select "Concordances". Then click on the "2002 NAICS to 1987 SIC" link to download an Excel file of data.

For more information, please see the Industry Classification section of the Industry Information Sources guide.