Country reference network

Business classification sites around the world

Start with a country, then open the project that covers its national industry, occupation, tax or trade codes. Every card explains the project's actual scope so you can choose the relevant system before leaving AU-Codex.

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Asia-Pacific

National industry, occupation and business-code references across Asia and Oceania.

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Europe

Business activity systems derived from national standards and European NACE relationships.

Italy

Codici ATECO

ATECO 2026

Italian ATECO reference with code search, the 2022-to-2026 transition, terminology support and practical material for business classification.

Italian Visit site
Spain

IAE-CNAE

IAE and CNAE 2025

Free Spanish converter and lookup joining tax activity headings from IAE with CNAE economic activity codes and their official titles.

Spanish Visit site
Spain

Atlas de Nombres Hispanos

Hispanic given-name reference

A separate cultural reference project for exploring Hispanic given names by country, origin and initial. It is included as a related data project, not a business classifier.

Spanish Visit site
United Kingdom

UK SIC

UK SIC

Complete UK industry-code directory designed around Companies House, HMRC and ONS use cases, with all levels available for browsing.

English Visit site
France

NAF Code France

NAF and APE

French NAF explorer for finding APE activities, understanding classification levels and comparing the transition from NAF Revision 2.

French Visit site
Poland

PKD Polska

PKD 2025

Polish PKD 2025 hub with legacy PKD 2007 migration context and links to corresponding NACE and ISIC structures.

Polish Visit site
Türkiye

Meslek NACE

NACE activity codes

Turkish activity-code finder supporting tax, MERSIS and SGK workflows through search, terminology and code comparison.

Turkish Visit site
Germany

WZ Codes

WZ 2025

German WZ 2025 directory for business registration, tax office and chamber-of-commerce use, with migration references from WZ 2008.

German Visit site

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Americas

Industry, occupation, trade and procurement systems used across North and Latin America.

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Middle East and Africa

National business activity directories and wider compliance references for MENA and African markets.

Scope and independence

Use each directory as a navigation aid

These are independent reference projects, not government portals. Classification editions and administrative use can change. Confirm consequential registration, tax, customs, employment or licensing decisions with the authority named on the destination site.