Civil engineering: largest employers
1,211 Belgian companies in the sector (NACE 42) report employees in recent accounts; here are the top 20. Jan De Nul leads with 1,840.7 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 | Jan De Nul 9308 Aalst | €2.66bn | €1.73bn | €1.42bn | 1,840.7 | 2025 |
| 2 | Spie Belgium 1070 Anderlecht | €274.7m | €375.6m | €60.8m | 1,375.4 | 2025 |
| 3 | DEME Dredging 2070 Beveren-Kruibeke-Zwijndrecht | €575.7m | €608.0m | €226.8m | 1,374.1 | 2025 |
| 4 | Denys 9032 Ghent | €528.9m | €506.3m | €103.8m | 969.3 | 2025 |
| 5 | Willemen Infra 9031 Ghent | €251.5m | €284.1m | €87.0m | 861.7 | 2025 |
| 6 | Etablissements Maurice Wanty 7134 Binche | €128.0m | €197.0m | €46.7m | 773.0 | 2025 |
| 7 | Stadsbader 8530 Harelbeke | €398.1m | €528.9m | €135.3m | 752.1 | 2025 |
| 8 | Galère 4053 Chaudfontaine | €180.4m | €183.6m | €39.5m | 585.2 | 2025 |
| 9 | BESIX Unitec 2627 Schelle | €126.2m | €180.6m | €29.2m | 546.5 | 2025 |
| 10 | APK infra 3900 Pelt | €58.2m | €164.9m | €15.3m | 539.6 | 2025 |
| 11 | DEME Offshore BE 2070 Beveren-Kruibeke-Zwijndrecht | €1.50bn | €968.6m | €190.5m | 527.0 | 2025 |
| 12 | Colas Belgium 1120 Brussels | €119.8m | €139.2m | €30.6m | 499.0 | 2025 |
| 13 | Colas Noord 3550 Heusden-Zolder | €66.9m | €157.9m | €3.87m | 472.1 | 2025 |
| 14 | Socogetra 6900 Marche-en-Famenne | €132.9m | €147.3m | €29.4m | 434.2 | 2025 |
| 15 | Etwal - Platteau Infra 7180 Seneffe | €41.3m | €65.3m | €18.0m | 430.4 | 2025 |
| 16 | Litran 9000 Ghent | €83.5m | €114.1m | €21.1m | 410.2 | 2025 |
| 17 | CAS-VOS 9100 Sint-Niklaas | €59.4m | €106.9m | €10.2m | 387.4 | 2025 |
| 18 | Viabuild 2870 Puurs-Sint-Amands | €131.3m | €161.5m | €38.9m | 378.4 | 2025 |
| 19 | Argea 1180 Uccle | €34.9m | €72.9m | €10.7m | 348.7 | 2025 |
| 20 | Verbraeken Infra 9140 Temse | €193.3m | €319.2m | €85.7m | 327.2 | 2025 |
Headcount reported by the company for all its sites: the jobs may be located elsewhere.
← The whole Civil engineering sector
Frequently asked questions
Who is the largest employer in Civil engineering?
Jan De Nul, with 1,840.7 full-time equivalents reported (financial year 2025).
How many Civil engineering companies report employees?
1,211 out of 3,265, in accounts less than 3 years old.
Analyse companies in Civil engineering
Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.
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 11 Nov 2026.