GUS

Główny Urząd Statystyczny is the national statistical authority of PL. It compiles, publishes and maintains official statistics — including the country's implementation of the EU NACE Rev. 2.1 activity classification.

GUS publishes PKD — the national activity classification(s) aligned with NACE and used in business registries, tax filings and official statistics.

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 GUS page published by its maintainer — see the official link on this page.