How to Choose the Correct NAICS or SIC Code
Picking a NAICS or SIC code starts with a simple question: what does the business mainly do? For many straightforward businesses, that answer gets you most of the way there. Say what the business sells, match it to the closest code description, and check that the code fits the real operation. Updated June 2026 · Reviewed by the SICCODE.com Industry Classification Review Team , specialists in