Largest employers in Leuven
771 companies registered in 3000 Leuven report employees in recent accounts; here are the top 20. SUi leads with 1,063.1 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 | SUi Employment activities | €42.8m | €22.6m | €24.1m | 1,063.1 | 2025 |
| 2 | KBC Assurances Insurance, reinsurance and pension funding, except compulsory social security | €37.3bn | — | €18.2bn | 1,020.0 | 2025 |
| 3 | Z.org KU Leuven Human health activities | €221.8m | €111.2m | €109.4m | 940.6 | 2025 |
| 4 | Regionaal Ziekenhuis Heilig Hart Leuven Human health activities | €127.6m | €118.7m | €46.8m | 626.7 | 2025 |
| 5 | JOB Talent Employment activities | €16.1m | €64.3m | €3.48m | 573.8 | 2025 |
| 6 | SBB Bedrijfsdiensten Legal and accounting activities | €42.6m | €69.5m | €23.4m | 534.4 | 2025 |
| 7 | Woonzorgnet-Dijleland Residential care activities | €76.5m | €29.4m | €34.4m | 366.1 | 2025 |
| 8 | WERKERS in uitzenden Employment activities | €2.34m | €9.33m | €1.47m | 258.9 | 2025 |
| 9 | Arktos Activities of membership organisations | €10.4m | 238,591 € | €4.44m | 246.3 | 2025 |
| 10 | Parkwind Electricity, gas, steam and air conditioning supply | €512.6m | €47.4m | €484.8m | 189.8 | 2025 |
| 11 | Pleegzorg Vlaams - Brabant en Brussel Social work activities without accommodation | €18.9m | — | €13.2m | 189.6 | 2025 |
| 12 | Centrum Algemeen Welzijnswerk Oost-Brabant Social work activities without accommodation | €9.73m | 332,487 € | €6.82m | 163.5 | 2025 |
| 13 | Boerenbond Activities of membership organisations | €10.8m | €1.74m | €3.41m | 147.7 | 2025 |
| 14 | Leuvense Strijk- en Poetsdienst Personal service activities | 594,339 € | — | 172,668 € | 145.0 | 2025 |
| 15 | KBC Autolease Financial service activities, except insurance and pension funding | €1.71bn | €505.3m | €7.88m | 138.0 | 2025 |
| 16 | Medisch Centrum voor Huisartsen Human health activities | €23.8m | €24.5m | €12.0m | 119.9 | 2025 |
| 17 | Talan Belgium Wholesale trade | €7.30m | €16.3m | €4.05m | 111.5 | 2025 |
| 18 | GuardSquare Computer programming, consultancy and related activities | €38.5m | €29.1m | €5.11m | 103.9 | 2025 |
| 19 | Keysight Technologies Belgium Wholesale trade | €39.6m | €11.4m | €2.56m | 99.7 | 2025 |
| 20 | Omnia Travel Travel agency, tour operator and other reservation service and related activities | €29.0m | €31.9m | €5.05m | 98.5 | 2025 |
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.
Frequently asked questions
Who is the largest employer in Leuven?
SUi, with 1,063.1 full-time equivalents reported (financial year 2025). These jobs may be located outside the municipality.
How many companies in Leuven report employees?
771 out of 2,455, in accounts less than 3 years old.
Analyse companies in Leuven
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.