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ISCO Occupational Classification

ISCO, the International Standard Classification of Occupations, is a framework for organising jobs into a consistent structure — this page explains how it works and how employers and candidates can use it.

For employers. HRHelperG helps define workforce requirements and connect you with suitable recruitment partners — see how it works, request workers and the business ecosystem. Not a recruitment agency; no placement guarantees.

What ISCO is

ISCO, the International Standard Classification of Occupations, is an international classification system that groups jobs into a structured hierarchy based on the tasks and duties involved. It is maintained at the international level and used widely for comparing occupational data.

The classification arranges occupations from broad major groups down to more detailed unit groups, giving a common language for describing roles. Official information is published by the bodies that maintain and apply it.

What ISCO covers

  • A structured hierarchy of occupations from broad to detailed groups.
  • Grouping of jobs by the tasks and duties they involve.
  • A common framework for describing and comparing occupations.
  • A basis for consistent occupational data across contexts.
  • A reference used alongside related national and EU classifications.

How employers use ISCO

  • To describe roles using a recognised, consistent framework.
  • To map internal job titles to standard occupational groups.
  • To support clearer, comparable role definitions in workforce planning.
  • As a neutral reference when discussing roles across borders.

How candidates use ISCO

  • To understand how an occupation is categorised in a standard way.
  • To relate a job title to a recognised occupational group.
  • To compare how similar roles are described across contexts.
  • As a neutral reference when interpreting role descriptions.

Confirm details with the official source

Classifications are revised over time and applied differently in different contexts, and this page is a general explanation. Confirm current structure and definitions with the official source that maintains the classification.

Official sources to confirm current rules

Requirements change and specifics vary. Confirm the current position with the official authority for this jurisdiction:

Recruitment partners & our business ecosystem

Depending on the project, country, workforce type and availability, HRHelperG may introduce employers to recruitment partners within its business ecosystem. Recruitment services may be delivered by TNT agency s.r.o. or another suitable recruitment partner where appropriate. HRHelperG is not a recruitment agency and does not guarantee placement, hiring outcomes or candidate availability.

Comparing where to live, work or hire?

Related tools from the HELPERG ecosystem that may help with this:

  • Global City Intelligence — Compare cities and countries on affordability, safety, healthcare and quality of life from official data — useful when deciding where to live, work or build a workforce.

Need workers?

Tell us what roles you need to fill. HRHelperG can help define your workforce requirements and connect you with suitable recruitment partners, including partners within our business ecosystem where appropriate. HRHelperG does not guarantee placement, hiring outcomes, or candidate availability.

Free, printable HR & employment resources

Practical, ungated resources to put this into action — no signup.

About HRHelperG. HRHelperG is an informational and employer acquisition platform — not a recruitment agency. Recruitment services may be provided by suitable recruitment partners where appropriate, including TNT agency s.r.o. or another partner within our business ecosystem. HRHelperG does not guarantee hiring outcomes, worker availability, or placement success. This page is general information only and is not legal, employment, tax or immigration advice.
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FAQ

Frequently asked questions

What is ISCO?

It is the International Standard Classification of Occupations, an international system that groups jobs into a structured hierarchy based on the tasks and duties involved.

Why does ISCO matter to employers?

It provides a recognised, consistent way to describe and compare roles, which helps with clear role definitions and workforce planning across contexts.

Is ISCO the same as an industry classification?

No. ISCO classifies occupations (the work a person does), while industry classifications group employers by economic activity. They are complementary frameworks.

Does HRHelperG maintain ISCO?

No. HRHelperG is an independent platform and does not maintain any classification. Always confirm current definitions with the official source.