Companies in 4100 Seraing (Boncelles)
1,080 companies that have filed annual accounts are registered in 4100 Seraing (Boncelles). Postcode 4100 covers: Boncelles, Seraing.
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Main sectors in Seraing (Boncelles)
Largest companies in Seraing (Boncelles)
Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | John Cockerill Manufacture of fabricated metal products, except machinery and equipment | €851.9m | €272.0m | €296.6m | 565.5 | 2025 |
| 2 | Publilec Electricity, gas, steam and air conditioning supply | €193.9m | — | €168.3m | 2.3 | 2025 |
| 3 | John Cockerill Hydrogen Belgium Electricity, gas, steam and air conditioning supply | €161.9m | €14.3m | €22.0m | 143.2 | 2025 |
| 4 | Centre Hospitalier Bois DE L'Abbaye Human health activities | €152.9m | €183.6m | €24.1m | 1,563.1 | 2025 |
| 5 | La Maison Sérésienne Real estate activities | €148.0m | €16.1m | €99.9m | 63.5 | 2024 |
| 6 | Emnos Financial service activities, except insurance and pension funding | €55.5m | — | €53.2m | — | 2025 |
| 7 | ESMA Financial service activities, except insurance and pension funding | €55.5m | — | €53.2m | — | 2025 |
| 8 | John Cockerill Metals International Architectural and engineering activities; technical testing and analysis | €49.9m | — | €24.8m | — | 2025 |
| 9 | John Cockerill Groupe Siège Financial service activities, except insurance and pension funding | €41.3m | — | €25.7m | 1.7 | 2024 |
| 10 | Lo.Ve.Mat Wholesale trade | €30.5m | €60.1m | €19.0m | 47.5 | 2025 |
| 11 | Delbecq Retail trade | €22.0m | €69.6m | €3.62m | 79.5 | 2025 |
| 12 | Centrale de Services à Domicile - Réseau Solidaris Social work activities without accommodation | €21.8m | €46.0m | €6.73m | 1,013.2 | 2025 |
| 13 | LBX Manufacture of other transport equipment | €21.0m | €34.2m | €3.29m | 58.1 | 2025 |
| 14 | LES PHARMACIES DU PEUPLE - Réseau Solidaris Retail trade | €18.0m | €44.8m | €6.55m | 129.3 | 2025 |
| 15 | Industrya Fund Activities of head offices and management consultancy | €16.5m | — | €16.4m | — | 2025 |
| 16 | Maison Despriet Wholesale trade | €13.4m | €31.8m | €8.82m | 45.8 | 2025 |
| 17 | Incar-Motor Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles | €12.9m | €43.1m | €1.51m | 44.2 | 2025 |
| 18 | Pharma Sante - Reseau Solidaris Wholesale trade | €11.9m | €49.8m | €4.54m | 51.2 | 2025 |
| 19 | John Cockerill Defense Siège Real estate activities | €9.71m | — | €9.33m | — | 2024 |
| 20 | Matel - Motors Retail trade | €9.00m | €26.3m | €4.76m | 18.4 | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
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Frequently asked questions
How many companies are registered in Seraing (Boncelles)?
1,080 companies that have filed annual accounts are registered at postcode 4100 (Seraing (Boncelles)).
What are the main sectors in Seraing (Boncelles)?
By number of companies: Retail trade (134), Specialised construction activities (105), Human health activities (99).
What is the largest company in Seraing (Boncelles)?
By total assets, it is John Cockerill (€851.9m, financial year 2025).
How many jobs do companies in Seraing (Boncelles) report?
Companies registered in Seraing (Boncelles) together report 6,813 full-time equivalents in their latest accounts. These jobs may be located outside the municipality.
Analyse companies in Seraing (Boncelles)
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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 10 Oct 2026.