Activities auxiliary to financial services and insurance activities: highest published revenue
374 Belgian companies in the sector (NACE 66) publish their revenue in recent accounts; here are the top 20. AON Belgium leads with €393.1m (financial year 2025).
Top 20
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | AON Belgium 1831 Machelen (Brab.) | €1.75bn | €393.1m | €89.5m | 317.0 | 2025 |
| 2 | MoneyGram International 1000 Brussels | €90.6m | €206.0m | €58.4m | 22.8 | 2025 |
| 3 | Aware 1050 Ixelles | €158.9m | €168.1m | €4.35m | 40.2 | 2025 |
| 4 | Wex Europe Services (BE) 1050 Ixelles | €23.3m | €148.8m | €12.5m | 11.3 | 2025 |
| 5 | Vanbreda Risk & Benefits 2140 Antwerp | €426.7m | €136.7m | €71.8m | 611.3 | 2025 |
| 6 | Willis Towers Watson 4020 Liège | €915.2m | €131.4m | €106.0m | 123.7 | 2025 |
| 7 | Marsh 1160 Auderghem | €460.5m | €129.7m | €56.6m | 266.2 | 2025 |
| 8 | Batopin 1210 Saint-Josse-ten-Noode | €247.7m | €115.0m | €44.6m | 31.4 | 2025 |
| 9 | Taptap Send Belgium 1000 Brussels | €18.4m | €112.3m | €11.1m | 33.2 | 2025 |
| 10 | Cigna International Health Services 2140 Antwerp | €120.1m | €98.7m | €28.2m | 201.5 | 2025 |
| 11 | Pluxee Belgium 1000 Brussels | €1.15bn | €98.0m | €4.11m | 255.4 | 2025 |
| 12 | ICLHB Finance 1000 Brussels | €724.5m | €87.3m | 61,500 € | — | 2025 |
| 13 | Vibe Group Belgium 2000 Antwerp | €14.7m | €69.3m | €2.25m | 74.1 | 2025 |
| 14 | Symrise Group Finance and IP-Holding 1050 Brussels | €587.8m | €68.6m | €44.1m | 0.9 | 2025 |
| 15 | Monument Insurance European Services 1210 Saint-Josse-ten-Noode | €22.5m | €66.2m | €9.59m | 144.7 | 2025 |
| 16 | Allia Insurance Brokers 8800 Roeselare | €225.5m | €63.6m | €23.8m | 274.5 | 2025 |
| 17 | Ibanfirst 1050 Brussels | €689.2m | €47.9m | €18.5m | 19.6 | 2025 |
| 18 | Miller Europe 1050 Ixelles | €167.2m | €44.3m | €74.0m | 8.5 | 2025 |
| 19 | Group induver 2018 Antwerp | €214.4m | €43.8m | €37.4m | 141.2 | 2025 |
| 20 | Dekra Belgium 1930 Zaventem | €23.9m | €32.7m | €16.0m | 248.0 | 2025 |
These are the revenue figures published in the annual accounts. Small companies (micro and abridged accounts) do not have to publish theirs: they do not appear in this ranking.
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Frequently asked questions
Which company in Activities auxiliary to financial services and insurance activities has the highest revenue?
AON Belgium, with €393.1m in revenue (financial year 2025).
How many Activities auxiliary to financial services and insurance activities companies publish their revenue?
374 out of 8,543, in accounts less than 3 years old. Small companies (micro and abridged accounts) are not required to publish it.
Analyse companies in Activities auxiliary to financial services and insurance activities
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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 13 Nov 2026.