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How do different industry segment standards relate to each other?

This article explains which international standards for industry classification exist and how they can be compared. North Data supports the following standards: WZ 2025, NAICS, ISIC, NACE, and UK SIC

Overview of Industry Classification Standards: 
 
(1) SIC : An older North American standard 
(2) NAICS: A newer North American standard that has largely replaced SIC.  
(3) ISIC: The international standard from the United Nations. The current version is Revision 4 (from 2008). It forms the basis for many national and regional classifications, including the European NACE and the German WZ classification. (4) NACE: The standard used by the European Union. The current Revision 2.1 will come into effect in 2025 and is based directly on ISIC Rev. 4. 
(5) WZ: The German standard. The new version, WZ 2025, will take effect on January 1, 2025. It replaces the previous WZ 2008 and is based on NACE Rev. 2.1.  
(6) ÖNACE: The Austrian standard, also based on the NACE code. 
(7) NOGA: The Swiss standard, likewise derived from the NACE code.  
(8) UK SIC: The British standard (from 2007), also based on NACE Rev. 2.1. (Not to be confused with the North American SIC.) Einordnung und Vergleichbarkeit:  

 
Classification and Comparability: 

At first glance, the variety of standards may seem confusing – but in fact, they are largely compatible. The classifications NACE, WZ, and UK SIC are based on a common system.  
 
The Segment filter of the Power Search, different classification standards can be selected. North Data automatically performs a “translation” from the standard used in the respective country to the target standard.