GICS to NAICS crosswalk

Question

For the last two weeks I have been in search of a mapping/crosswalk between Global Industry Classification Standard (GICS) and North American Industry Classification Standard (NAICS) and have found little luck.

NAICS: https://www.census.gov/cgi-bin/sssd/naics/naicsrch?chart=2017

GICS: https://www.msci.com/gics

This is something I feel like should exists as there is plenty of GICS-/NAICS-classified data researchers would like to relate.

Does anyone know of such a mapping/crosswalk or a reason why this could never be done?

Qnp

Figured it out, emailed S&P and they provided a mapping. – Qnp

Hi! I also emailed S&P and they told me that they were not able to find the perfect mapping from GICS to NAICS. Can you share the solution for me? Thanks! – Disrelish

Are you able to upload this anywhere? or share the email of S&P anyone – Soane

Hey Ben, Any chance you can share the mapping they provided? – Comparator

Answer 1

GICS values are actually market data sold by Standard and Poors. Since S&P created and owns the mapping, you have to pay for the information. Many investment banks provide the GICS data but they have a license from S&P. That's why there isn't a public utility to lookup/map to other codes.

Cns

Answer 2

Shove both in a clustering algo or a topic modeler (to refine merges and splits) Make sure to include descriptions before chunking to give it some context and use sentenceTransformers to encode it etc... Look up BerTopic Leetopic KeyBERT and throw in a llama or two... have fun ;)

Artur