Hainaut · Wallonia

Companies in 7180 Seneffe

329 companies that have filed annual accounts are registered in 7180 Seneffe.

Companies329
Reported headcount (FTE)2,888
Companies with 50+ FTE14
Median equity81,506 €
Founded in the last 3 years25

Largest companies in Hainaut → · Largest employers in Hainaut →

Main sectors in Seneffe

Largest companies in Seneffe

Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.

#Company Total assetsRevenue EquityFTEYear
1 DOW Silicones Belgium Manufacture of chemicals and chemical products €345.8m €131.8m €129.3m 440.2 2025
2 Doyen Auto Wholesale trade €143.1m €151.3m €28.0m 229.5 2025
3 Sopura International Services Activities of advertising, market research and public relations €88.7m 82,000 € €78.7m 0.7 2025
4 Telix Pharmaceuticals (Belgium) Manufacture of basic pharmaceutical products and pharmaceutical preparations €57.1m €14.9m 515,466 € 51.0 2025
5 Etwal - Platteau Infra Civil engineering €41.3m €65.3m €18.0m 430.4 2025
6 Les Produits Purs de Courcelles Manufacture of chemicals and chemical products €41.2m €35.5m €28.4m 87.2 2025
7 Groupe Atlantic Manufacturing Belgium Manufacture of fabricated metal products, except machinery and equipment €33.1m €35.4m −€18.7m 129.2 2025
8 Castingpar Manufacture of basic metals €27.3m €34.8m €6.04m — 2025
9 B.S.I. Manufacture of rubber and plastic products €24.4m €9.56m €11.3m 14.4 2025
10 Castingpar Group Financial service activities, except insurance and pension funding €22.3m — €4.05m — 2024
11 Alysse Food Manufacture of food products €19.4m €38.5m −€6.39m 217.2 2024
12 voestalpine Böhler Welding Belgium Manufacture of basic metals €17.6m €42.8m €7.03m 81.2 2026
13 aptaskil Education €17.0m €1.41m €9.11m 38.8 2025
14 Devanthinic Pharma Financial service activities, except insurance and pension funding €16.8m — €7.73m 8.4 2025
15 Gribomont Fonteyn Bogaerts Spitaels Notaires associés Legal and accounting activities €16.1m — 612,278 € 12.9 2025
16 Vandemoortele Seneffe Manufacture of food products €11.0m €17.6m €6.24m 139.6 2025
17 Bakbel Europe Manufacture of food products €10.5m €20.3m €5.56m 41.0 2025
18 The Belgian Pie Company Activities of head offices and management consultancy €10.5m 455,514 € €6.45m — 2025
19 BSI Pipe Systems Manufacture of rubber and plastic products €9.55m €5.97m €5.20m 14.2 2025
20 Centre DE Ressources Technologiques EN Chimie Architectural and engineering activities; technical testing and analysis €9.46m — €5.57m 30.5 2025

“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.

Based elsewhere, present in Seneffe

89 companies with their registered office in another municipality operate at least one establishment in Seneffe (shop, branch, depot…). The largest, by balance sheet total:

#Company Total assetsRevenue EquityFTEYear
1 TotalEnergies Petrochemicals & Refining 1000 Brussels €6.33bn €15.5bn €4.72bn 352.8 2025
2 bpost 1000 Brussels €4.27bn €2.19bn €657.6m 23,730.2 2025
3 Societe Wallonne DES Eaux 4800 Verviers €2.56bn €631.3m €1.52bn 1,318.2 2025
4 AGC Glass Europe 1348 Ottignies-Louvain-la-Neuve €2.22bn €487.2m €397.3m 1,968.2 2025
5 Verbraeken Drilling Infra 9140 Temse €552.5m €6.81m €44.3m — 2025
6 AIR Liquide Industries Belgium 1932 Zaventem €475.8m €573.8m €265.2m 269.4 2025
7 "I.D.E.A. S.C" 7000 Mons €441.3m €28.7m €279.3m 333.9 2025
8 Henogen 6041 Charleroi €97.2m €48.7m −€4.55m 244.5 2025
9 Comfort Energy 3500 Hasselt €96.6m €572.1m €41.7m — 2025
10 L'Air liquide Belge 1932 Zaventem €86.7m €126.7m €43.8m 304.7 2025
11 Societe Nouvelle DE Distribution 6220 Fleurus €77.1m €212.2m €32.4m 593.6 2025
12 Ineos Services Belgium 1120 Brussels €63.4m €46.7m €50.4m 169.6 2025
13 Hygea 7021 Mons €59.4m €22.1m €17.1m 363.2 2024
14 Fondatel Lecomte 5300 Andenne €36.4m €46.2m €17.2m 149.6 2025
15 Iron Mountain Belgium 1850 Grimbergen €32.5m €11.4m €29.4m 24.0 2025
16 Preflexibel 9400 Ninove €24.3m €57.2m €6.90m 58.4 2025
17 Intermediance & Partners 5032 Gembloux €20.9m — €2.95m 29.8 2024
18 P. VAN EGDOM-MARIEN EN Co 2220 Heist-op-den-Berg €17.8m €25.2m €8.80m 37.9 2025
19 Residence LA Sapiniere 7020 Mons €13.5m €23.7m €7.81m 226.0 2025
20 Arva Plastics 8020 Oostkamp €9.21m — €1.60m — 2025

Establishments: establishment units declared in the Crossroads Bank for Enterprises (CBE). Each company’s registered office is shown under its name.

“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.

Nearby municipalities

Frequently asked questions

How many companies are registered in Seneffe?

329 companies that have filed annual accounts are registered at postcode 7180 (Seneffe).

What are the main sectors in Seneffe?

By number of companies: Specialised construction activities (36), Human health activities (28), Activities of head offices and management consultancy (27).

What is the largest company in Seneffe?

By total assets, it is DOW Silicones Belgium (€345.8m, financial year 2025).

How many jobs do companies in Seneffe report?

Companies registered in Seneffe together report 2,888 full-time equivalents in their latest accounts. These jobs may be located outside the municipality.

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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 17 Oct 2026.