Construction of water projects: highest published revenue
28 Belgian companies in the sector (NACE 4291) publish their revenue in recent accounts; here are the top 20. Jan De Nul leads with €1.73bn (financial year 2025).
Top 20
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Jan De Nul 9308 Aalst | €2.66bn | €1.73bn | €1.42bn | 1,840.7 | 2025 |
| 2 | DEME Offshore BE 2070 Beveren-Kruibeke-Zwijndrecht | €1.50bn | €968.6m | €190.5m | 527.0 | 2025 |
| 3 | Dredging International 2070 Beveren-Kruibeke-Zwijndrecht | €705.3m | €731.2m | €222.9m | 29.9 | 2025 |
| 4 | DEME Dredging 2070 Beveren-Kruibeke-Zwijndrecht | €575.7m | €608.0m | €226.8m | 1,374.1 | 2025 |
| 5 | Baggerwerken Decloedt & Zoon 8400 Ostend | €366.4m | €159.3m | €234.6m | 230.2 | 2025 |
| 6 | Flanders Dredging Corporation 9308 Aalst | €150.0m | €94.7m | €79.9m | — | 2025 |
| 7 | Balteau 4141 Sprimont | €22.8m | €50.2m | €8.09m | 103.6 | 2025 |
| 8 | HYE N.V. 2070 Beveren-Kruibeke-Zwijndrecht | €38.9m | €40.9m | €9.34m | 112.4 | 2025 |
| 9 | Interconnector Zeebrugge Terminal 1040 Brussels | €17.3m | €38.9m | €8.92m | — | 2025 |
| 10 | Ghent Dredging 9810 Nazareth-De Pinte | €35.1m | €38.6m | €15.1m | 44.8 | 2025 |
| 11 | De Brandt 9200 Dendermonde | €31.1m | €26.2m | €16.6m | 90.4 | 2025 |
| 12 | Aqua.COM 8680 Koekelare | €13.3m | €23.1m | €9.71m | 13.8 | 2025 |
| 13 | Dredging, Environmental & Marine Engineering 2070 Beveren-Kruibeke-Zwijndrecht | €768.6m | €21.7m | €394.0m | 15.0 | 2025 |
| 14 | Heyrman - de Roeck 9120 Beveren-Kruibeke-Zwijndrecht | €15.8m | €17.4m | €10.7m | 19.4 | 2025 |
| 15 | Environnement - Ecologie - Curage 5380 Fernelmont | €11.1m | €16.2m | €2.22m | 57.4 | 2025 |
| 16 | BESIX Environment 1200 Woluwe-Saint-Lambert | €8.40m | €14.7m | 556,352 € | 17.1 | 2025 |
| 17 | Van Raak Louis 2381 Ravels | €16.2m | €13.8m | €4.16m | 30.7 | 2025 |
| 18 | Veolia WTS Belgium 4040 Herstal | €37.4m | €12.5m | €3.04m | 47.0 | 2025 |
| 19 | Deme Group 2070 Beveren-Kruibeke-Zwijndrecht | €1.23bn | €11.6m | €1.11bn | 4.0 | 2025 |
| 20 | Acotec 9320 Aalst | €11.7m | €9.18m | €5.29m | 23.5 | 2025 |
These are the revenue figures published in the annual accounts. Small companies (micro and abridged accounts) do not have to publish theirs: they do not appear in this ranking.
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Frequently asked questions
Which company in Construction of water projects has the highest revenue?
Jan De Nul, with €1.73bn in revenue (financial year 2025).
How many Construction of water projects companies publish their revenue?
28 out of 143, in accounts less than 3 years old. Small companies (micro and abridged accounts) are not required to publish it.
Analyse companies in Construction of water projects
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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.