I am looking for a way to map business name + address to NAICS code. Found few government sites like follows:

Can someone recommend a more centralized place where similar lists could be found across US?

  • 1
    Random guess: the IRS is interested in this, so they may have something: poke around for EINs and TINs. However, since many sole proprietorships use the owner's SSN for tax id, this may not be super helpful finding smaller businesses.
    – user3856
    Commented Aug 12, 2017 at 16:02
  • 1
    Interesting idea. Found also this github.com/datasets/edgar - which maps public companies to SIC code (potentially convertible to NAICS).
    – Altair7852
    Commented Aug 14, 2017 at 18:50

2 Answers 2


Not an answer, but too long for a comment. What I've found:


You can use Relativity6 API service to classify business with NAICs, just using business name and address. The system will perform a real-time consulting with the help of an IA to classify the business.


Disclaimer: I work for Relativity6.

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