Companies in 3000 Leuven
2,456 companies that have filed annual accounts are registered in 3000 Leuven.
Largest companies in Flemish Brabant → · Largest employers in Flemish Brabant →
Main sectors in Leuven
Largest companies in Leuven
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 | KBC Assurances Insurance, reinsurance and pension funding, except compulsory social security | €37.3bn | — | €18.2bn | 1,020.0 | 2025 |
| 2 | Cobrew Activities of head offices and management consultancy | €11.9bn | — | €199.6m | 6.7 | 2025 |
| 3 | Maatschappij Voor Roerend Bezit VAN DE Boerenbond Financial service activities, except insurance and pension funding | €4.19bn | — | €4.13bn | 10.1 | 2025 |
| 4 | KBC Ancora Financial service activities, except insurance and pension funding | €3.63bn | — | €3.53bn | — | 2025 |
| 5 | Cera Financial service activities, except insurance and pension funding | €3.29bn | €19.7m | €3.25bn | 45.9 | 2025 |
| 6 | KBC Autolease Financial service activities, except insurance and pension funding | €1.71bn | €505.3m | €7.88m | 138.0 | 2025 |
| 7 | Parkwind Electricity, gas, steam and air conditioning supply | €512.6m | €47.4m | €484.8m | 189.8 | 2025 |
| 8 | KBC Immolease Financial service activities, except insurance and pension funding | €483.2m | — | €27.3m | — | 2025 |
| 9 | Northwester 2 Electricity, gas, steam and air conditioning supply | €470.1m | €75.6m | €41.5m | — | 2025 |
| 10 | Nobelwind Electricity, gas, steam and air conditioning supply | €378.9m | €98.2m | €14.3m | — | 2025 |
| 11 | DIJLEDAL Sociale Huisvesting Leuven Real estate activities | €352.7m | €23.7m | €29.0m | 70.2 | 2025 |
| 12 | Circle Bidco Financial service activities, except insurance and pension funding | €266.4m | 620,699 € | €221.2m | — | 2025 |
| 13 | Studentcomfort Real estate activities | €264.9m | — | €85.5m | 13.2 | 2025 |
| 14 | Circle Topco Activities of head offices and management consultancy | €227.1m | — | €227.1m | — | 2025 |
| 15 | Fonds Voorzitter Verhelst Activities of head offices and management consultancy | €224.4m | — | €222.9m | — | 2024 |
| 16 | Z.org KU Leuven Human health activities | €221.8m | €111.2m | €109.4m | 940.6 | 2025 |
| 17 | Renner Energies Activities of head offices and management consultancy | €208.5m | 535,939 € | €43.3m | 10.0 | 2024 |
| 18 | Belwind Electricity, gas, steam and air conditioning supply | €194.8m | €79.7m | €22.3m | — | 2025 |
| 19 | LCP Holdco Belgium Financial service activities, except insurance and pension funding | €159.6m | €1.34m | €108.8m | 3.0 | 2025 |
| 20 | DYLS Financial service activities, except insurance and pension funding | €153.8m | €1.67m | €80.7m | 10.0 | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Nearby municipalities
Frequently asked questions
How many companies are registered in Leuven?
2,456 companies that have filed annual accounts are registered at postcode 3000 (Leuven).
What are the main sectors in Leuven?
By number of companies: Food and beverage service activities (300), Real estate activities (241), Retail trade (202).
What is the largest company in Leuven?
By total assets, it is KBC Assurances (€37.3bn, financial year 2025).
How many jobs do companies in Leuven report?
Companies registered in Leuven together report 13,140 full-time equivalents in their latest accounts. These jobs may be located outside the municipality.
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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 10 Oct 2026.