NACE and NACE-BEL classify economic activity in Belgium and across Europe.
NACE, short for the European statistical classification of economic activities, is used across the European Union to group business activity into a consistent hierarchy.
It is the backbone for comparable statistics, business registers, and a range of administrative processes that depend on describing what an organization actually does.
NACE-BEL is Belgium's national implementation of NACE. It keeps the European structure but adds the specificity needed for Belgian administrative and economic use.
Belgian businesses rely on NACE-BEL codes for registration, compliance, tax-related workflows, and official reporting.
The codes form a hierarchy from broader sectors down to more specific classes. That lets businesses classify themselves at the right degree of detail.
01The broadest practical grouping used in the public directory.
01.1Adds a more specific economic branch within the section.
01.11Narrows the activity into a more precise operational category.
01.111The most specific level published in this directory.
Based on NACE Rev. 1.1 and used earlier in the 2000s to reflect the economy of that period.
Aligned with NACE Rev. 2 and introduced important updates for services and digital activity.
The current version, updated for newer economic realities while staying aligned with European standards.
NACE is derived from the United Nations ISIC framework, which means European activity data can still be compared in a broader international context.
Eurostat and national statistical offices periodically review the classification so it keeps pace with how the economy changes.
The main idea is simple: everyone uses the same structure, so analysis, reporting, and administration stay consistent.
NACE-BEL codes matter well beyond statistics. They appear across the practical machinery of running and regulating businesses.
Belgian companies use NACE-BEL codes when incorporating and updating official records.
Authorities use classifications to segment businesses for administrative and regulatory work.
Economic data can be collected and compared consistently across sectors and countries.
Public and private tender flows often rely on activity codes to define scope.
The best code is the one that reflects the main activity of the business. If you are unsure, use the search directory to explore related activities and cross-check against official Belgian guidance.
Practical advice
If the classification affects a formal filing or legal obligation, confirm the final choice with a professional advisor or the relevant Belgian authority.