Computing infrastructure, data processing, hosting and related activities: highest published revenue
82 Belgian companies in the sector (NACE 6310) publish their revenue in recent accounts; here are the top 20. crystal computing leads with €965.1m (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 | crystal computing 7331 Saint-Ghislain | €5.33bn | €965.1m | €4.80bn | 155.5 | 2025 |
| 2 | Smals 1060 Saint-Gilles | €288.2m | €578.9m | — | 2,222.6 | 2025 |
| 3 | Worldline 1130 Brussels | €3.74bn | €566.5m | €2.15bn | 544.0 | 2025 |
| 4 | ProUnity 1150 Woluwe-Saint-Pierre | €66.3m | €429.9m | €1.43m | 27.5 | 2025 |
| 5 | Egov Select 1030 Schaerbeek | €37.7m | €122.2m | €9.21m | 998.7 | 2025 |
| 6 | Secrétariat Social Securex - Sociaal Sekretariaat Securex - Sozial Sekretariate für Arbeitgeber Securex 1040 Etterbeek | €269.3m | €103.5m | €70.1m | 440.6 | 2025 |
| 7 | Atrias 1030 Schaerbeek | €60.2m | €61.8m | 18,600 € | 40.2 | 2025 |
| 8 | Combell 9042 Ghent | €886.8m | €56.8m | €509.0m | 131.9 | 2025 |
| 9 | Bancontact Company 1040 Brussels | €74.4m | €36.3m | €33.3m | 51.8 | 2025 |
| 10 | IPEX 1480 Tubize | €44.5m | €31.7m | €23.1m | 49.1 | 2025 |
| 11 | Clarivate Analytics (Belgium) 2600 Antwerp | €62.8m | €27.4m | €5.90m | 121.7 | 2025 |
| 12 | Datacenter United Brussels 1140 Evere | €31.7m | €25.7m | €27.3m | 3.8 | 2025 |
| 13 | GraydonCreditsafe Belgium 2600 Antwerp | €18.9m | €20.2m | €5.92m | 56.9 | 2025 |
| 14 | Almaviva de Belgique 1000 Brussels | €7.91m | €15.9m | €3.62m | 14.8 | 2025 |
| 15 | Vlaams Datanutsbedrijf 1000 Brussels | €34.1m | €14.7m | €23.8m | 15.2 | 2025 |
| 16 | Proximus Ada 1000 Brussels | €5.54m | €14.0m | €2.93m | 62.0 | 2023 |
| 17 | European Registry for Internet Domains 1831 Machelen (Brab.) | €23.2m | €13.3m | €8.05m | 40.1 | 2025 |
| 18 | Companyweb 1800 Vilvoorde | €12.1m | €13.3m | €1.14m | 12.9 | 2025 |
| 19 | Trionis 1000 Brussels | €3.24m | €10.7m | €1.28m | 2.0 | 2025 |
| 20 | MyData-TRUST 1300 Wavre | €9.28m | €10.7m | €2.36m | 54.7 | 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 Computing infrastructure, data processing, hosting and related activities has the highest revenue?
crystal computing, with €965.1m in revenue (financial year 2025).
How many Computing infrastructure, data processing, hosting and related activities companies publish their revenue?
82 out of 1,174, in accounts less than 3 years old. Small companies (micro and abridged accounts) are not required to publish it.
Analyse companies in Computing infrastructure, data processing, hosting and related 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 20 Oct 2026.