Electricity, gas, steam and air conditioning supply: highest revenue in Brussels
As of 14 Nov 2026, 49 companies in Electricity, gas, steam and air conditioning supply (NACE 35) in Brussels publish their revenue in recent accounts (financial years 2024 to 2026). The top 10 account for €21.1bn, out of €22.0bn for all of them; median revenue is €6.96m. Electrabel leads with €13.1bn (financial year 2025).
Top 49 · Electricity, gas, steam and air conditioning supply · Brussels
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | Electrabel 1000 Brussels | €20.5bn | €13.1bn | €10.2bn | 4,261.0 | 2025 |
| 2 | Luminus 1210 Saint-Josse-ten-Noode | €2.37bn | €3.12bn | €772.5m | 1,181.2 | 2025 |
| 3 | Elia Transmission Belgium 1000 Brussels | €10.5bn | €1.52bn | €3.86bn | 611.6 | 2025 |
| 4 | Elia Asset 1000 Brussels | €7.19bn | €963.7m | €1.73bn | 999.9 | 2025 |
| 5 | Fluxys Belgium 1040 Brussels | €2.27bn | €722.2m | €399.7m | 918.5 | 2025 |
| 6 | Axpo Benelux 1050 Brussels | €240.3m | €411.2m | €3.04m | 6.7 | 2025 |
| 7 | BE-NUC 1000 Brussels | €976.9m | €401.6m | €148.2m | 1.9 | 2025 |
| 8 | Sibelga 1000 Brussels | €1.52bn | €396.7m | €861.4m | — | 2025 |
| 9 | Fluxys LNG 1040 Brussels | €829.9m | €236.9m | €117.9m | 51.7 | 2025 |
| 10 | Octa+ Energie 1150 Woluwe-Saint-Pierre | €71.2m | €232.2m | €42.1m | 11.5 | 2025 |
| 11 | EDF Belgium 1210 Saint-Josse-ten-Noode | €1.96bn | €182.5m | €1.47bn | — | 2025 |
| 12 | Brussels Network Operations 1000 Brussels | €30.3m | €142.7m | 23,229 € | 1,201.7 | 2025 |
| 13 | Next Kraftwerke Belgium 1190 Forest | €96.7m | €131.5m | 471,991 € | 8.8 | 2024 |
| 14 | Energie.BE 1210 Saint-Josse-ten-Noode | €98.1m | €123.7m | €50.5m | 24.6 | 2025 |
| 15 | Bolt Energie 1210 Saint-Josse-ten-Noode | €28.2m | €84.8m | −€2.73m | 51.7 | 2025 |
| 16 | T-Power 1050 Ixelles | €123.5m | €77.9m | €74.4m | 1.0 | 2025 |
| 17 | Coreso 1000 Brussels | €45.3m | €50.7m | €8.66m | 110.8 | 2025 |
| 18 | Dehon Service Belgium 1090 Jette | €8.05m | €11.6m | €3.51m | 10.3 | 2025 |
| 19 | Fluxys Europe 1040 Brussels | €1.78bn | €10.7m | €1.71bn | 10.9 | 2025 |
| 20 | Greensky 1000 Brussels | €31.3m | €9.87m | €15.1m | — | 2025 |
| 21 | Conquest4Wind P5 1000 Brussels | €64.9m | €8.13m | €13.1m | — | 2025 |
| 22 | Wind4Flanders Projects 4 1000 Brussels | €49.9m | €7.62m | €10.7m | — | 2025 |
| 23 | Fluxys 1040 Brussels | €4.79bn | €7.40m | €1.97bn | 49.8 | 2025 |
| 24 | Wind4Flanders Projects 3 1000 Brussels | €53.2m | €7.20m | €15.3m | — | 2025 |
| 25 | Green Wind 1000 Brussels | €52.0m | €6.96m | €45.0m | — | 2025 |
| 26 | Eolus 1210 Saint-Josse-ten-Noode | €46.0m | €6.80m | €44.9m | — | 2024 |
| 27 | T-Power Energy Services 1050 Ixelles | €3.20m | €6.49m | 405,386 € | 25.2 | 2025 |
| 28 | Wind4Flanders Projects 2 1000 Brussels | €30.3m | €6.12m | €17.4m | — | 2025 |
| 29 | Fluxys hydrogen 1040 Brussels | €96.7m | €6.11m | €25.5m | 3.5 | 2025 |
| 30 | WIND4Flanders Projects 1 1000 Brussels | €19.6m | €5.84m | €16.9m | — | 2025 |
| 31 | Wind4Flanders Projects Alfa 1000 Brussels | €54.8m | €4.97m | €2.23m | — | 2025 |
| 32 | Power 2 Green 1210 Saint-Josse-ten-Noode | €21.3m | €4.76m | €6.24m | — | 2025 |
| 33 | Wind4Wallonia 1000 Brussels | €27.2m | €4.49m | €9.13m | — | 2025 |
| 34 | Electrabel Green Projects Flanders 1000 Brussels | €18.6m | €4.44m | €15.4m | — | 2025 |
| 35 | ISP1-RG 1000 Brussels | €6.04m | €4.09m | 858,850 € | — | 2025 |
| 36 | Wind4Flanders Projects Beta 1000 Brussels | €39.6m | €3.50m | €20.8m | — | 2025 |
| 37 | Zo-Fier 1210 Saint-Josse-ten-Noode | €31.0m | €2.48m | €8.47m | — | 2025 |
| 38 | Matisse Belgique 1160 Auderghem | €15.1m | €2.11m | €2.50m | — | 2025 |
| 39 | Luminus Wind Together 1210 Saint-Josse-ten-Noode | €11.0m | €1.77m | €10.5m | — | 2025 |
| 40 | Lumiwind 1210 Saint-Josse-ten-Noode | €13.2m | €1.77m | €12.7m | — | 2025 |
| 41 | MHI Power Aero Europe 1160 Auderghem | 496,451 € | €1.27m | 302,975 € | 3.0 | 2026 |
| 42 | LumIKA 1210 Saint-Josse-ten-Noode | €15.9m | €1.01m | €4.14m | — | 2025 |
| 43 | OMES 1150 Woluwe-Saint-Pierre | €1.32m | 901,604 € | −€3.04m | 2.4 | 2025 |
| 44 | Monument Green Energy 1210 Saint-Josse-ten-Noode | €2.28m | 733,548 € | 956,819 € | — | 2025 |
| 45 | Ampyr Distributed Energy Belgium 1 1000 Brussels | €21.6m | 126,000 € | 384,061 € | — | 2025 |
| 46 | Manergy 1000 Brussels | 880,030 € | 97,982 € | 344,672 € | — | 2025 |
| 47 | innogy Energy Belgium 1210 Saint-Josse-ten-Noode | 309,152 € | 92,938 € | 298,250 € | — | 2025 |
| 48 | Brussels Solar 1000 Brussels | 74,709 € | 6,011 € | 65,988 € | — | 2025 |
| 49 | Energy Cluster 1060 Saint-Gilles | 135,773 € | 6 € | 132,111 € | — | 2025 |
Ranking based on each company's own annual accounts (statutory, not consolidated): a subsidiary and its parent appear separately, and the ranking differs from lists based on consolidated group accounts. 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.
Electricity, gas, steam and air conditioning supply across Belgium → All sectors · Brussels →
Other sectors · Brussels
- 10 Manufacture of food products56
- 18 Printing and reproduction of recorded media25
- 20 Manufacture of chemicals and chemical products27
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations19
- 25 Manufacture of fabricated metal products, except machinery and equipment38
- 26 Manufacture of computer, electronic and optical products13
- 27 Manufacture of electrical equipment16
- 28 Manufacture of machinery and equipment n.e.c.11
- 32 Other manufacturing18
- 33 Repair, maintenance and installation of machinery and equipment21
- 38 Waste collection, recovery and disposal activities20
- 41 Construction of residential and non-residential buildings243
- 42 Civil engineering35
- 43 Specialised construction activities596
- 46 Wholesale trade733
- 47 Retail trade1,129
- 49 Land transport and transport via pipelines457
- 52 Warehousing, storage and support activities for transportation58
- 53 Postal and courier activities33
- 55 Accommodation69
- 56 Food and beverage service activities526
- 58 Publishing activities52
- 59 Motion picture, video and television programme production, sound recording and music publishing activities93
- 60 Programming, broadcasting, news agency and other content distribution activities12
- 61 Telecommunication33
- 62 Computer programming, consultancy and related activities337
- 63 Computing infrastructure, data processing, hosting and other information service activities43
- 64 Financial service activities, except insurance and pension funding273
- 66 Activities auxiliary to financial services and insurance activities97
- 68 Real estate activities722
- 69 Legal and accounting activities184
- 70 Activities of head offices and management consultancy485
- 71 Architectural and engineering activities; technical testing and analysis136
- 72 Scientific research and development27
- 73 Activities of advertising, market research and public relations164
- 74 Other professional, scientific and technical activities48
- 77 Rental and leasing activities43
- 78 Employment activities36
- 79 Travel agency, tour operator and other reservation service and related activities30
- 80 Investigation and security activities17
- 81 Services to buildings and landscape activities143
- 82 Office administrative, office support and other business support activities181
- 84 Public administration and defence; compulsory social security27
- 85 Education187
- 86 Human health activities259
- 87 Residential care activities100
- 88 Social work activities without accommodation156
- 90 Arts creation and performing arts activities84
- 92 Gambling and betting activities15
- 93 Sports activities and amusement and recreation activities77
- 94 Activities of membership organisations216
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles66
- 96 Personal service activities183
Municipalities with the most companies in the sector · Brussels
Frequently asked questions
Which company in Electricity, gas, steam and air conditioning supply in Brussels has the highest revenue?
Electrabel, with €13.1bn of published revenue (financial year 2025).
Why are some companies missing?
Small companies (micro and abridged accounts) do not have to publish their revenue: only the 49 that publish it, out of 146 companies in the sector in the area, are ranked.
Why does this ranking differ from other lists?
It uses each company's annual accounts as filed with the National Bank, not consolidated group accounts. A holding, a subsidiary or a purchasing entity can therefore appear separately. Only companies whose latest accounts are less than 3 years old are ranked.
Analyse companies · Brussels
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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 14 Nov 2026.