Site preparation: largest employers
931 Belgian companies in the sector (NACE 4312) report employees in recent accounts; here are the top 20. Aertssen Infra leads with 337.0 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 | Aertssen Infra 2940 Stabroek | €173.1m | €199.1m | €47.7m | 337.0 | 2025 |
| 2 | Eloy Travaux 4140 Sprimont | €51.5m | €84.5m | €11.9m | 237.8 | 2024 |
| 3 | HENS 2990 Wuustwezel | €31.6m | €54.0m | €9.98m | 104.7 | 2025 |
| 4 | ESSA 2170 Antwerp | €2.31m | — | 740,039 € | 77.5 | 2025 |
| 5 | Lucas David 4360 Oreye | €13.4m | €24.0m | €3.82m | 73.4 | 2025 |
| 6 | Bayro 9160 Lokeren | €7.37m | — | €3.62m | 65.5 | 2025 |
| 7 | Diciu Stefan 9700 Oudenaarde | €2.72m | €4.24m | €1.24m | 58.4 | 2025 |
| 8 | Baldewijns 3583 Beringen | €12.8m | €22.1m | €4.29m | 53.1 | 2025 |
| 9 | Megaflex 2100 Antwerp | 756,646 € | — | 404,837 € | 48.7 | 2024 |
| 10 | DKY 1130 Brussels | €1.88m | — | €1.27m | 47.4 | 2025 |
| 11 | Elboka 2460 Kasterlee | €6.85m | — | €2.68m | 42.9 | 2025 |
| 12 | Pirot 6890 Libin | €8.55m | — | €2.82m | 39.8 | 2025 |
| 13 | Grondwerken Eggermont Simon 9800 Deinze | €7.88m | — | €1.63m | 38.1 | 2025 |
| 14 | Yvaga 9220 Hamme (Vl.) | €8.97m | €10.9m | €2.83m | 37.8 | 2026 |
| 15 | Construction Location Service 4360 Oreye | €4.14m | — | 455,421 € | 37.4 | 2025 |
| 16 | GLK Grondwerken 9770 Kruisem | €4.52m | — | €1.70m | 35.2 | 2025 |
| 17 | Grondwerken de MOL 9080 Lochristi | €7.35m | €14.6m | €1.75m | 35.1 | 2025 |
| 18 | D'Haene Karl 9770 Kruisem | €9.95m | — | €1.73m | 34.3 | 2025 |
| 19 | GYVA 2800 Mechelen | €12.1m | €14.1m | €1.65m | 34.0 | 2025 |
| 20 | Degro 8900 Ypres | €14.7m | €13.1m | €6.36m | 33.3 | 2026 |
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 Site preparation?
Aertssen Infra, with 337.0 full-time equivalents reported (financial year 2025).
How many Site preparation companies report employees?
931 out of 3,071, in accounts less than 3 years old.
Analyse companies in Site preparation
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.