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Practical Guide

Contractor Accreditations in Belgium: Classes, Categories and Public Procurement

Everything you need to know about the Belgian contractor accreditation system for public works contracts.

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In Belgium, to participate in a public works contract exceeding certain thresholds, a contractor must hold an accreditation issued by the FPS Economy. This system of classes and categories is a fundamental element of the public construction sector. Here is a comprehensive guide to help you navigate it.

What is contractor accreditation?

Accreditation certifies that a company has the technical and financial capacity required to carry out public works. It is an essential prerequisite for accessing public works contracts in Belgium.

  • Mandatory for works contracts with an estimated value of EUR 75,000 or more (class 1)
  • Issued by the Accreditation Commission of the FPS Economy
  • Valid for 5 years, renewable upon request
  • Certifies the company's technical, financial and integrity capabilities

Accreditation classes (amounts)

Accreditation classes determine the maximum value of works a company is authorised to carry out. There are 8 classes, from class 1 (small contracts) to class 8 (very large projects).

Class 1

Up to EUR 135,000

Class 2

Up to EUR 275,000

Class 3

Up to EUR 500,000

Class 4

Up to EUR 900,000

Class 5

Up to EUR 1,810,000

Class 6

Up to EUR 3,225,000

Class 7

Up to EUR 5,330,000

Class 8

Over EUR 5,330,000

Categories and subcategories

In addition to the class, each accreditation is linked to one or more categories defining the type of works the company may carry out. Here are the main accreditation categories in Belgium.

Main categories

A — Dredging B — Electricity C — General road contracting D — General building contracting E — Civil engineering F — Metalwork G — Earthworks K — Mechanical installations L — Water and gas installations N — Waterway transport P — Electrical installations S — Special earthworks T — Heating and air-conditioning installations

Subcategory examples (category D)

Category D (general building contracting) is subdivided into numerous specialised subcategories:

D1 — Structural work and roofing D4 — General joinery D5 — Roofing and waterproofing D10 — Tiling D11 — Plastering and rendering D20 — Painting

How accreditation impacts your monitoring

GPC Gov automatically filters tenders based on your accreditations. Whether you are looking for public works contracts, road construction tenders or HVAC contracts, our platform identifies opportunities matching your exact classes and accreditation categories.

With our personalised monitoring, you only receive tenders for which you are accredited. Combined with the new 2026 European thresholds, this filtering ensures you never miss an opportunity. Explore our plans to get started.

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