Construction of residential and non-residential buildings: largest employers
5,434 Belgian companies in the sector (NACE 4100) report employees in recent accounts; here are the top 20. Thomas & Piron Home leads with 916.5 FTE (financial year 2025).
Top 20
Ranked by average headcount (FTE) reported in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Thomas & Piron Home 6852 Paliseul | €211.1m | €211.1m | €122.3m | 916.5 | 2025 |
| 2 | N.V. Besix S.A. 1200 Woluwe-Saint-Lambert | €1.04bn | €1.15bn | €258.7m | 808.8 | 2025 |
| 3 | Entreprises générales Louis Duchene 4577 Modave | €192.9m | €240.0m | €18.8m | 465.1 | 2025 |
| 4 | Stadsbader Contractors 1120 Brussels | €224.4m | €393.6m | €56.0m | 452.2 | 2025 |
| 5 | Willy Naessens Industriebouw 9790 Wortegem-Petegem | €228.9m | €334.3m | €83.3m | 394.0 | 2025 |
| 6 | Thomas & Piron Bâtiment 5100 Namur | €158.1m | €175.9m | €75.5m | 380.0 | 2025 |
| 7 | Cordeel Belgium 3730 Bilzen-Hoeselt | €269.2m | €324.9m | €61.2m | 349.4 | 2025 |
| 8 | CIT Blaton 1030 Schaerbeek | €186.9m | €303.0m | €61.3m | 334.9 | 2025 |
| 9 | Valcke Prefab Beton 8908 Ypres | €42.2m | €52.7m | €23.4m | 334.4 | 2025 |
| 10 | Willemen Bouw 2800 Mechelen | €151.1m | €231.5m | €30.3m | 312.2 | 2025 |
| 11 | BPC Group 1160 Auderghem | €148.0m | €209.2m | €19.3m | 301.0 | 2025 |
| 12 | Etablissements Jean Wust 4890 Thimister-Clermont | €71.6m | €141.3m | €18.2m | 298.1 | 2025 |
| 13 | Artes Roegiers 9150 Beveren-Kruibeke-Zwijndrecht | €137.5m | €232.2m | €24.7m | 272.2 | 2025 |
| 14 | Mourik 2030 Antwerp | €67.0m | €86.2m | €13.8m | 261.0 | 2025 |
| 15 | Draseghir 7080 Frameries | €1.99m | — | −56,998 € | 248.0 | 2025 |
| 16 | Democo 3500 Hasselt | €67.2m | €188.3m | €15.6m | 241.8 | 2025 |
| 17 | DCA 2250 Olen | €175.8m | €75.0m | €15.6m | 229.0 | 2024 |
| 18 | Louis de Waele Construction 1170 Watermael-Boitsfort | €51.8m | €128.5m | €10.4m | 217.0 | 2025 |
| 19 | Strabag Belgium 2030 Antwerp | €106.7m | €152.2m | €20.5m | 208.3 | 2025 |
| 20 | Van Laere 2070 Beveren-Kruibeke-Zwijndrecht | €100.0m | €184.7m | €12.7m | 201.0 | 2025 |
Headcount reported by the company for all its sites: the jobs may be located elsewhere.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
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Frequently asked questions
Who is the largest employer in Construction of residential and non-residential buildings?
Thomas & Piron Home, with 916.5 full-time equivalents reported (financial year 2025).
How many Construction of residential and non-residential buildings companies report employees?
5,434 out of 18,946, in accounts less than 3 years old.
Analyse companies in Construction of residential and non-residential buildings
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Open the full file →Active companies (legal entities) that have filed at least one set of annual accounts, based on the Crossroads Bank for Enterprises and the National Bank of Belgium. The sector is the main activity in the register; the municipality is that of the registered office. Data updated on 13 Nov 2026.