Installation of insulation
1,225 Belgian companies whose main activity falls under NACE code 4323 have filed annual accounts. Their median solvency is 45.2% 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 | 23.2% | 45.2% | 66.5% | 1,027 |
| Current ratio | 1.08 | 1.68 | 2.83 | 1,025 |
| ROE | 1.5% | 16.2% | 38.9% | 943 |
| Equity | 21,982 € | 70,003 € | 207,613 € | 1,039 |
| Total assets | 73,201 € | 179,006 € | 507,806 € | 1,037 |
| Net result | −13 € | 9,986 € | 39,730 € | 1,039 |
| Headcount (avg FTE) | 1.0 | 3.0 | 7.6 | 336 |
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: Installation of insulation
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 | Altrad Services 9130 Beveren-Kruibeke-Zwijndrecht | €108.4m | €172.0m | €41.2m | 1,098.5 | 2025 |
| 2 | Bilfinger Industrial Services Belgiê 2070 Beveren-Kruibeke-Zwijndrecht | €33.1m | €118.8m | €5.49m | 328.4 | 2025 |
| 3 | Blijweert Holding 9250 Waasmunster | €23.6m | — | €12.5m | — | 2024 |
| 4 | KAEFER België 9140 Temse | €23.2m | €53.3m | €8.69m | 265.9 | 2025 |
| 5 | EIB Insulation 2900 Schoten | €22.9m | €48.1m | €1.85m | 100.4 | 2023 |
| 6 | Murprotec 1440 Braine-le-Château | €18.1m | €45.0m | €8.28m | 48.3 | 2025 |
| 7 | Les Erables 7522 Tournai | €15.8m | €4.63m | €12.0m | 180.1 | 2025 |
| 8 | Isolatec 3500 Hasselt | €11.6m | €7.13m | €11.1m | 11.0 | 2025 |
| 9 | Roteam 1930 Zaventem | €10.6m | €20.7m | €5.26m | 15.7 | 2025 |
| 10 | Isoflex 1790 Affligem | €9.92m | €26.4m | €1.84m | 16.5 | 2025 |
| 11 | Setip-Gcube 1083 Ganshoren | €9.76m | €20.3m | €3.37m | 58.2 | 2025 |
| 12 | Nivolo Group 8570 Anzegem | €8.48m | €1.39m | €5.04m | 1.0 | 2025 |
| 13 | Cesar 1470 Genappe | €8.24m | — | 695,680 € | 1.0 | 2025 |
| 14 | G + H Montage 2040 Antwerp | €8.01m | €14.1m | €3.53m | 80.2 | 2025 |
| 15 | Rimann 1070 Anderlecht | €7.67m | €2.32m | €2.40m | — | 2024 |
| 16 | JEF Ponsen 3640 Kinrooi | €7.35m | — | €6.03m | — | 2025 |
| 17 | Hönders Immobilien 4731 Raeren | €6.50m | — | 728,552 € | — | 2025 |
| 18 | Endeco 1301 Wavre | €6.41m | — | €4.39m | 36.6 | 2025 |
| 19 | Isolteam 8610 Kortemark | €6.21m | €14.6m | €4.76m | 33.7 | 2025 |
| 20 | Expitisol 2170 Antwerp | €5.92m | — | €1.55m | 10.7 | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Where are they based?
Municipalities with the most
Related sectors
← The whole Specialised construction activities sector (NACE 43)
- 4321 Electrical installation10,614
- 4332 Joinery installation8,227
- 4322 Plumbing, heat and air-conditioning installation8,146
- 4399 Other specialised construction activities n.e.c.5,388
- 4341 Roofing activities3,896
- 4312 Site preparation3,070
- 4334 Painting and glazing2,815
- 4333 Floor and wall covering2,423
- 4335 Other building completion and finishing2,044
- 4331 Plastering1,655
- 4324 Other construction installation1,367
- 4391 Masonry and bricklaying activities999
Frequently asked questions
How many Installation of insulation companies are there in Belgium?
1,225 Belgian companies whose main activity falls under NACE code 4323 (Installation of insulation) have filed annual accounts with the National Bank.
What is the median solvency in Installation of insulation?
For financial year 2024, median solvency (equity over total assets) is 45.2%. The middle half of companies lies between 23.2% and 66.5% (1,027 companies).
What is the largest company in Installation of insulation?
By total assets, it is Altrad Services (€108.4m, financial year 2025).
Where are Installation of insulation companies based?
The municipalities with the most: Schaerbeek (31), Anderlecht (30), Brussels (23).
Analyse companies in Installation of insulation
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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.