Who Assigns SIC Codes to Businesses?

SIC Codes are self-selected and determined based on a company’s primary line of business. Therefore there is not a central agency that handles the assignment of SIC Codes. SICCODE.com provides the tools and resources to assist you in determining your SIC Code.  Please see the following pages for assistance:

What is a Primary SIC Code?

Each and every company will have a primary SIC code. This number indicates a company’s primary line of business. What determines a company’s primary SIC code is the code definition that generates the highest revenue for that company at a specific location in the past year.