Key facts
- A NAICS code is the standard number for what a business does, used in the United States, Canada and Mexico.
- NAICS is the North American Industry Classification System.
- SIC is the older system still on many records.
- A record can keep the same code after a company changes direction, so it may show the old number.
NAICS is the North American Industry Classification System. Source: BLS SIC is the older system still on many records. A record can keep the same code after a company changes direction, so it may show the old number.
Buzzlist searches the codes and the words in a company's name and description, so you can catch the companies the code misses.
Sources
Checked October 9, 2026. Rules change, so read the source before you rely on it. This is general information, not legal advice.
