Ranking · Brussels · NACE 94

Activities of membership organisations: the largest employers in Brussels

As of 14 Nov 2026, 670 companies in Activities of membership organisations (NACE 94) in Brussels report employees in recent accounts (financial years 2023 to 2026). The 10 largest employers account for 1,399.7 FTE, out of 10,020 for all of them; median headcount is 8.3 FTE. Vereniging van Vlaamse Steden en Gemeenten leads with 208.5 FTE (financial year 2025).

Top 50 · Activities of membership organisations · Brussels

Ranked by average headcount (FTE) reported in the latest filed accounts (accounts less than 3 years old).

#Company Total assetsRevenue EquityFTEYear
1 Vereniging van Vlaamse Steden en Gemeenten 1000 Brussels €43.3m €2.67m €4.04m 208.5 2025
2 Agoria 1000 Brussels €83.0m €9.51m €70.6m 180.7 2025
3 Oxfam Solidarite - Oxfam Solidariteit 1040 Brussels €47.1m €7.40m €19.2m 180.5 2025
4 European Network of Transmission System Operators for Electricity 1000 Brussels €81.1m — €16.8m 171.7 2025
5 Dokters van de Wereld - Medecins du Monde 1210 Saint-Josse-ten-Noode €35.4m — €3.22m 153.9 2025
6 Embuild 1000 Brussels €45.6m €8.01m €34.8m 109.9 2025
7 jes 1080 Molenbeek-Saint-Jean €2.65m — €1.15m 104.4 2025
8 Kazou 1030 Schaerbeek €9.39m €21.1m €2.58m 100.2 2025
9 Pro Velo - Institut de Recherche et de Promotion du Vélo - Pro Velo - Instituut voor Onderzoek en Promotie van de Fiets 1050 Ixelles €3.33m — 444,423 € 95.3 2025
10 Archipel 1050 Ixelles €2.54m — €1.13m 94.6 2025
11 Kom op tegen Kanker 1210 Saint-Josse-ten-Noode €104.5m €4.01m €43.9m 93.1 2025
12 Unie van Zelfstandige Ondernemers 1000 Brussels €15.8m €3.28m €2.43m 81.8 2025
13 Fonds Europeen pour la Democratie 1040 Brussels €254.6m — 20,250 € 79.7 2025
14 Cooperative for Assistance and Relief Everywhere, International 1000 Brussels €11.7m — 311,675 € 79.6 2025
15 Eurocities 1000 Brussels €16.1m 97,369 € €2.60m 77.0 2025
16 I.M. 1210 Saint-Josse-ten-Noode €57.7m 17,962 € €9.76m 74.7 2025
17 Federation des enterprises de Belgique 1000 Brussels €12.1m — €6.72m 72.8 2025
18 ASSURALIA (union professionnelle des entreprises d'assurances) 1210 Saint-Josse-ten-Noode €14.4m €1.62m €4.24m 72.4 2025
19 Greenpeace Belgium 1020 Brussels €6.24m €1.25m €4.27m 71.7 2025
20 OKRA, trefpunt 55+ 1030 Schaerbeek €7.05m €1.14m €4.94m 71.4 2025
21 De Brusselse Organisatie voor de Emancipatie van Jongeren 1080 Molenbeek-Saint-Jean €2.61m — €1.51m 67.3 2025
22 European Environmental Bureau 1000 Brussels €8.50m — 332,245 € 67.2 2025
23 Plan International Belgium 1000 Brussels €16.6m — €4.88m 67.0 2025
24 Ligue des Familles 1050 Ixelles €5.27m 500,516 € €3.88m 60.5 2025
25 Federation Belge du Commerce et des Services 1160 Auderghem €13.3m — €8.04m 58.9 2024
26 Ocarina 1000 Brussels €2.87m €1.94m €1.41m 58.7 2025
27 institut syndical europeen 1000 Brussels €8.00m 175,510 € €4.27m 57.3 2025
28 Epia solarpower europe 1040 Brussels €8.54m €8.34m €2.23m 57.0 2025
29 homegrade 1210 Saint-Josse-ten-Noode €1.19m 14,601 € 304,200 € 54.5 2025
30 ClientEarth 1050 Ixelles €1.38m — 216,741 € 54.3 2025
31 VVOB 1060 Saint-Gilles €22.1m — €2.73m 53.9 2025
32 Fondation Registre du Cancer 1210 Saint-Josse-ten-Noode €5.95m — €4.57m 53.3 2025
33 La Confederation des Entreprises Europeennes 1000 Brussels €10.4m — €6.60m 51.7 2025
34 Rebelle 1000 Brussels €1.34m — 568,175 € 49.1 2025
35 énéo 1000 Brussels €4.06m €1.22m €2.28m 47.8 2025
36 Présence et Action culturelles 1070 Anderlecht 973,599 € 114,722 € 76,555 € 45.9 2025
37 De Vormers 1030 Schaerbeek €1.58m — — 45.9 2025
38 Fédération belge des industries chimiques et des sciences de la vie 1030 Schaerbeek €8.37m €3.83m €5.75m 45.0 2025
39 WWF European Policy Programme 1000 Brussels €4.60m 7,444 € €2.10m 44.5 2025
40 Insurance Europe 1050 Ixelles €6.35m — €3.99m 42.9 2025
41 Zorgnet-Icuro 1040 Brussels €10.9m — €8.98m 42.4 2025
42 Plateforme pour le Service Citoyen 1000 Brussels €1.48m — −736,979 € 41.7 2025
43 Climate Action Network Europe 1050 Ixelles €10.7m €7.95m 623,864 € 41.6 2025
44 Fédération belge du Secteur Financier 1210 Saint-Josse-ten-Noode €8.85m 375,374 € €7.10m 41.5 2025
45 Amnesty International - Belgique francophone 1050 Ixelles €7.60m 299,015 € €6.42m 41.3 2025
46 Union des Classes Moyennes National 1050 Ixelles €3.29m 945 € €1.36m 39.3 2025
47 S-Plus 1000 Brussels €1.49m €1.13m 414,757 € 38.6 2025
48 European Partnership for Democracy 1040 Brussels €11.9m — 285,311 € 38.6 2025
49 GS1 1050 Ixelles €35.7m 301,741 € €6.87m 38.3 2024
50 Association des Constructeurs européens d'Automobiles 1040 Brussels €14.2m €16.3m 975,279 € 38.0 2025

Ranking based on each company's own annual accounts (statutory, not consolidated): a subsidiary and its parent appear separately, and the ranking differs from lists based on consolidated group accounts. 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.

Activities of membership organisations across Belgium → All sectors · Brussels →

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Frequently asked questions

Which is the largest employer in Activities of membership organisations in Brussels?

Among companies, Vereniging van Vlaamse Steden en Gemeenten, with 208.5 full-time equivalents reported (financial year 2025).

Are all the jobs located in the area?

Not necessarily: headcount is reported by the company for all its sites, and the company is ranked by the address of its registered office. 670 out of 945 companies in the sector report employees there.

Why does this ranking differ from other lists?

It uses each company's annual accounts as filed with the National Bank, not consolidated group accounts. A holding, a subsidiary or a purchasing entity can therefore appear separately. Only companies whose latest accounts are less than 3 years old are ranked.

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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 14 Nov 2026.