All other professional, scientific and technical activities n.e.c.: largest employers
191 Belgian companies in the sector (NACE 7499) report employees in recent accounts; here are the top 20. Bio Base Europe Pilot Plant leads with 152.2 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 | Bio Base Europe Pilot Plant 9042 Ghent | €47.0m | €15.4m | €24.0m | 152.2 | 2025 |
| 2 | Vlaams Energiebedrijf 1000 Brussels | €120.0m | €847.0m | €50.5m | 103.9 | 2025 |
| 3 | P95 3000 Leuven | €18.6m | €15.7m | €7.86m | 68.3 | 2024 |
| 4 | IBEVE vzw 3001 Leuven | €10.4m | €10.1m | €8.08m | 59.8 | 2025 |
| 5 | Arche Consulting 9032 Ghent | €3.51m | — | 946,537 € | 31.4 | 2025 |
| 6 | NSF Belgium 1831 Machelen (Brab.) | €5.15m | — | €3.93m | 28.8 | 2025 |
| 7 | Greenhouse Talent 9000 Ghent | €18.0m | €45.3m | €7.10m | 28.4 | 2025 |
| 8 | Lam Research Belgium 3001 Leuven | €5.37m | €8.10m | €3.61m | 27.3 | 2025 |
| 9 | Centre for Future Generations 1040 Brussels | 499,551 € | — | — | 22.9 | 2025 |
| 10 | 2 Bridge 2980 Zoersel | €2.25m | €5.56m | €1.63m | 19.4 | 2025 |
| 11 | European Cyber Security Organisation 1000 Brussels | €1.19m | — | 384,731 € | 19.1 | 2025 |
| 12 | Safety Priority on Site 2060 Antwerp | 298,403 € | €1.67m | −222,007 € | 19.0 | 2025 |
| 13 | Croplife Europe 1040 Brussels | €6.28m | 11,446 € | €2.69m | 18.3 | 2025 |
| 14 | Harmony Clinical Research 9090 Merelbeke-Melle | €1.59m | — | €1.30m | 17.4 | 2025 |
| 15 | Research & Solutions 1853 Grimbergen | €1.57m | €2.36m | 537,373 € | 15.9 | 2025 |
| 16 | Département autonome de Diagnostic par Radio-isotopes 1180 Uccle | €3.63m | — | €2.44m | 14.7 | 2025 |
| 17 | Normec ISEC 9120 Beveren | €1.68m | — | €1.08m | 14.4 | 2025 |
| 18 | KENNISCENTRUM Welzijn,Wonen ,Zorg 1000 Brussels | €2.40m | — | €2.11m | 14.4 | 2025 |
| 19 | Institut Belge de la Soudure Industrie 9052 Ghent | €2.17m | — | €1.76m | 13.7 | 2025 |
| 20 | Mnky BZZ 2000 Antwerp | €5.25m | — | 382,250 € | 12.5 | 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.
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Frequently asked questions
Who is the largest employer in All other professional, scientific and technical activities n.e.c.?
Bio Base Europe Pilot Plant, with 152.2 full-time equivalents reported (financial year 2025).
How many All other professional, scientific and technical activities n.e.c. companies report employees?
191 out of 1,904, in accounts less than 3 years old.
Analyse companies in All other professional, scientific and technical activities n.e.c.
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 12 Nov 2026.