Largest employers in Brussels
3,739 companies registered in 1000 Brussels report employees in recent accounts; here are the top 20. bpost leads with 23,730.2 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 | bpost Postal and courier activities | €4.27bn | €2.19bn | €657.6m | 23,730.2 | 2025 |
| 2 | Societe DES Transports Intercommunaux DE Bruxelles Land transport and transport via pipelines | €3.47bn | €240.6m | €3.00bn | 10,277.5 | 2025 |
| 3 | Arcelormittal Belgium Manufacture of basic metals | €4.55bn | €4.89bn | €1.66bn | 5,838.8 | 2025 |
| 4 | ISS Facility Services Services to buildings and landscape activities | €148.0m | €350.1m | €49.3m | 5,282.5 | 2025 |
| 5 | AG Insurance Insurance, reinsurance and pension funding, except compulsory social security | €76.3bn | — | €58.4bn | 4,379.8 | 2025 |
| 6 | Electrabel Electricity, gas, steam and air conditioning supply | €20.5bn | €13.1bn | €10.2bn | 4,261.0 | 2025 |
| 7 | Umicore Manufacture of chemicals and chemical products | €6.26bn | €5.43bn | €2.10bn | 3,209.0 | 2025 |
| 8 | G4S Secure Solutions Investigation and security activities | €109.6m | €187.6m | −€5.91m | 3,159.9 | 2025 |
| 9 | Fonds voor wetenschappelijk Onderzoek - Vlaanderen Scientific research and development | €260.3m | — | €183.9m | 2,772.6 | 2025 |
| 10 | Sodexo Belgium SA Food and beverage service activities | €170.7m | €410.8m | €49.4m | 2,599.7 | 2025 |
| 11 | Fonds DE LA Recherche Scientifique-Fnrs Scientific research and development | €446.5m | — | €134.8m | 2,180.8 | 2025 |
| 12 | Sweco Architectural and engineering activities; technical testing and analysis | €286.7m | €315.2m | €73.8m | 1,951.9 | 2025 |
| 13 | Inditex Belgie-Inditex Belgique Retail trade | €210.3m | €503.2m | €118.7m | 1,790.7 | 2026 |
| 14 | G4S Aviation Security Investigation and security activities | €38.2m | €94.6m | €19.3m | 1,664.8 | 2025 |
| 15 | Tractebel Engineering Architectural and engineering activities; technical testing and analysis | €350.5m | €332.1m | €176.4m | 1,326.4 | 2025 |
| 16 | H & M Hennes & Mauritz Wholesale trade | €171.7m | €397.9m | €76.0m | 1,318.4 | 2025 |
| 17 | Vivaqua Water collection, treatment and supply | €1.76bn | €356.0m | €569.7m | 1,260.3 | 2025 |
| 18 | Clinique Saint-Jean Human health activities | €251.9m | €233.8m | €76.2m | 1,210.7 | 2025 |
| 19 | Brussels Network Operations Electricity, gas, steam and air conditioning supply | €30.3m | €142.7m | 23,229 € | 1,201.7 | 2025 |
| 20 | Accenture Activities of head offices and management consultancy | €196.6m | €469.5m | €52.3m | 1,081.2 | 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 Brussels?
bpost, with 23,730.2 full-time equivalents reported (financial year 2025). These jobs may be located outside the municipality.
How many companies in Brussels report employees?
3,739 out of 12,738, in accounts less than 3 years old.
Analyse companies in Brussels
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.