CSO

Central Statistics Office (Ireland) is the national statistical authority of IE. It compiles, publishes and maintains official statistics — including the country's implementation of the EU NACE Rev. 2.1 activity classification.

NACEBridge reads authoritative definitions from Eurostat and each national statistical institute, then aligns them at the 4-digit NACE class so users can move between systems without losing meaning.

The authoritative source is the CSO page published by its maintainer — see the official link on this page.