Construction of water projects
143 Belgian companies whose main activity falls under NACE code 4291 have filed annual accounts. Their median solvency is 42.9% for financial year 2023.
Sector medians
Computed by IdonisDistribution across the sector's companies for financial year 2023: 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 | 19.5% | 42.9% | 64.6% | 122 |
| Current ratio | 0.86 | 1.33 | 2.43 | 118 |
| ROE | 2.1% | 10.5% | 20.5% | 111 |
| Equity | 59,048 € | 182,857 € | €1.86m | 122 |
| Total assets | 171,123 € | 597,515 € | €4.47m | 122 |
| Net result | −72 € | 19,714 € | 160,953 € | 121 |
| Headcount (avg FTE) | 1.6 | 5.4 | 26.8 | 59 |
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 water projects
Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
See all 143 companies, full list →
Where are they based?
Municipalities with the most
- 2070 Beveren-Kruibeke-Zwijndrecht (Burcht, Zwijndrecht)8
- 9120 Beveren-Kruibeke-Zwijndrecht (Haasdonk, Kallo, Melsele, …)6
- 1020 Brussels (Laeken)2
- 1040 Etterbeek2
- 1200 Woluwe-Saint-Lambert2
- 2290 Vorselaar2
- 2600 Antwerp (Berchem)2
- 3012 Leuven (Wilsele)2
- 3090 Overijse2
- 9200 Dendermonde (Appels, Baasrode, Grembergen, …)2
- 9220 Hamme (Vl.) (Hamme, Moerzeke)2
- 9260 Wichelen (Schellebelle, Serskamp)2
Related sectors
← The whole Civil engineering sector (NACE 42)
- 4211 Construction of roads and motorways1,162
- 4222 Construction of utility projects for electricity and telecommunications928
- 4299 Construction of other civil engineering projects n.e.c.468
- 4221 Construction of utility projects for fluids444
- 4212 Construction of railways and underground railways60
- 4213 Construction of bridges and tunnels60
Frequently asked questions
How many Construction of water projects companies are there in Belgium?
143 Belgian companies whose main activity falls under NACE code 4291 (Construction of water projects) have filed annual accounts with the National Bank.
What is the median solvency in Construction of water projects?
For financial year 2023, median solvency (equity over total assets) is 42.9%. The middle half of companies lies between 19.5% and 64.6% (122 companies).
What is the largest company in Construction of water projects?
By total assets, it is Jan De Nul (€2.66bn, financial year 2025).
Where are Construction of water projects companies based?
The municipalities with the most: Beveren-Kruibeke-Zwijndrecht (8), Beveren-Kruibeke-Zwijndrecht (6), Brussels (2).
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 11 Nov 2026.