Construction of residential and non-residential buildings
18,944 Belgian companies whose main activity falls under NACE code 41 have filed annual accounts. Their median solvency is 39.5% for financial year 2024.
Sector medians
Computed by IdonisDistribution across the sector's companies for financial year 2024: a quarter of companies sit below the 1st quartile, half below the median, three quarters below the 3rd quartile.
| Indicator | 1st quartile | Median | 3rd quartile | Companies |
|---|---|---|---|---|
| Solvency | 17.4% | 39.5% | 63.9% | 16,051 |
| Current ratio | 1.00 | 1.51 | 2.63 | 15,860 |
| ROE | 1.3% | 14.6% | 42.5% | 14,272 |
| Equity | 18,600 € | 67,662 € | 211,490 € | 16,154 |
| Total assets | 75,649 € | 204,982 € | 635,635 € | 16,112 |
| Net result | −1,010 € | 9,824 € | 36,177 € | 16,132 |
| Headcount (avg FTE) | 1.0 | 2.1 | 6.0 | 5,435 |
Medians computed by Idonis from annual accounts filed with the National Bank, all sizes combined. The same panel is the sector benchmark on every company page. Method
Largest companies: Construction of residential and non-residential buildings
Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | N.V. Besix S.A. 1200 Woluwe-Saint-Lambert | €1.04bn | €1.15bn | €258.7m | 808.8 | 2025 |
| 2 | Société de Développement pour la Région de Bruxelles-Capitale 1000 Brussels | €663.7m | €34.1m | €602.0m | 146.5 | 2025 |
| 3 | Dimensa Woonmaatschappij 9000 Ghent | €633.5m | — | €183.6m | — | 2025 |
| 4 | Compagnie d'Entreprises CFE 1160 Auderghem | €417.5m | €2.56m | €135.6m | 54.2 | 2025 |
| 5 | Woonsprong 8400 Ostend | €382.0m | €25.3m | €68.3m | 101.6 | 2025 |
| 6 | Woonmaatschappij Vlaamse Ardennen 9700 Oudenaarde | €350.9m | €18.3m | €56.7m | 37.7 | 2025 |
| 7 | Vastgoedgroep Degroote 8400 Ostend | €306.9m | €4.87m | €304.2m | 2.9 | 2025 |
| 8 | Cordeel Belgium 3730 Bilzen-Hoeselt | €269.2m | €324.9m | €61.2m | 349.4 | 2025 |
| 9 | Woonmaatschappij Meetjesland 9900 Eeklo | €256.0m | €16.9m | €72.0m | 43.8 | 2025 |
| 10 | Willy Naessens Industriebouw 9790 Wortegem-Petegem | €228.9m | €334.3m | €83.3m | 394.0 | 2025 |
| 11 | Providentia 1730 Asse | €228.3m | €20.8m | €29.0m | 39.1 | 2025 |
| 12 | Stadsbader Contractors 1120 Brussels | €224.4m | €393.6m | €56.0m | 452.2 | 2025 |
| 13 | Thomas & Piron Home 6852 Paliseul | €211.1m | €211.1m | €122.3m | 916.5 | 2025 |
| 14 | Hortus Conclusus 9308 Aalst | €208.2m | — | 61,500 € | — | 2025 |
| 15 | Entreprises générales Louis Duchene 4577 Modave | €192.9m | €240.0m | €18.8m | 465.1 | 2025 |
| 16 | CIT Blaton 1030 Schaerbeek | €186.9m | €303.0m | €61.3m | 334.9 | 2025 |
| 17 | EdgeConneX Brussels B.V. | €179.1m | €16.6m | −€36.5m | 1.0 | 2025 |
| 18 | DCA 2250 Olen | €175.8m | €75.0m | €15.6m | 229.0 | 2024 |
| 19 | Willemen Groep 2800 Mechelen | €170.0m | €4.09m | €33.4m | 6.9 | 2025 |
| 20 | Woonpunt Zennevallei 1500 Halle | €162.9m | €15.3m | €47.3m | 37.3 | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Where are they based?
Municipalities with the most
- 1600 Sint-Pieters-Leeuw (Oudenaken, Sint-Laureins-Berchem)324
- 1620 Drogenbos207
- 9000 Ghent193
- 1950 Kraainem190
- 1070 Anderlecht188
- 1930 Zaventem (Nossegem)184
- 1050 Ixelles167
- 1780 Wemmel162
- 1000 Brussels160
- 1853 Grimbergen (Strombeek-Bever)154
- 1700 Dilbeek (Sint-Martens-Bodegem, Sint-Ulriks-Kapelle)136
- 1800 Vilvoorde (Peutie)131
Construction of residential and non-residential buildings: rankings by region and province
The largest companies in the sector in each region and province, by municipality of the registered office. A ranking is published once 10 companies in the sector publish the figure there.
| Area | Total assets | Revenue | Headcount |
|---|---|---|---|
| Flanders | Largest | Revenue | Employers |
| Wallonia | Largest | Revenue | Employers |
| Brussels | Largest | Revenue | Employers |
| Antwerp province | Largest | Revenue | Employers |
| Flemish Brabant | Largest | Revenue | Employers |
| Limburg | Largest | Revenue | Employers |
| East Flanders | Largest | Revenue | Employers |
| West Flanders | Largest | Revenue | Employers |
| Walloon Brabant | Largest | Revenue | Employers |
| Hainaut | Largest | Revenue | Employers |
| Liège province | Largest | Revenue | Employers |
| Luxembourg province | Largest | Revenue | Employers |
| Namur province | Largest | Revenue | Employers |
Sub-sectors
Frequently asked questions
How many Construction of residential and non-residential buildings companies are there in Belgium?
18,944 Belgian companies whose main activity falls under NACE code 41 (Construction of residential and non-residential buildings) have filed annual accounts with the National Bank.
What is the median solvency in Construction of residential and non-residential buildings?
For financial year 2024, median solvency (equity over total assets) is 39.5%. The middle half of companies lies between 17.4% and 63.9% (16,051 companies).
What is the largest company in Construction of residential and non-residential buildings?
By total assets, it is N.V. Besix S.A. (€1.04bn, financial year 2025).
Where are Construction of residential and non-residential buildings companies based?
The municipalities with the most: Sint-Pieters-Leeuw (324), Drogenbos (207), Ghent (193).
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 12 Nov 2026.