Electricity, gas, steam and air conditioning supply: highest revenue in Hainaut
As of 14 Nov 2026, 20 companies in Electricity, gas, steam and air conditioning supply (NACE 35) in Hainaut publish their revenue in recent accounts (financial years 2024 to 2025). The top 10 account for €2.31bn, out of €2.32bn for all of them; median revenue is €3.31m. ORES Assets leads with €1.16bn (financial year 2025).
Top 20 · Electricity, gas, steam and air conditioning supply · Hainaut
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | ORES Assets 6041 Charleroi | €5.23bn | €1.16bn | €2.07bn | — | 2025 |
| 2 | Operateur de Reseaux d'Energies 6041 Charleroi | €2.83bn | €920.9m | 461,806 € | 3,000.0 | 2025 |
| 3 | TotalEnergies - Centrale Electrique Marchienne-au-Pont 6030 Charleroi | €66.1m | €134.9m | €36.9m | 39.0 | 2025 |
| 4 | Comptoir Citoyen des Energies 7900 Leuze-en-Hainaut | €8.00m | €30.8m | €3.07m | 10.9 | 2025 |
| 5 | Association Intercommunale d'Electricité du Sud du Hainaut 6470 Sivry-Rance | €80.3m | €21.3m | €49.8m | 52.7 | 2025 |
| 6 | Eol'Wapi 7500 Tournai | €121.9m | €17.4m | €81.8m | — | 2025 |
| 7 | Cgnee Belgium Wind Energy Company 7000 Mons | €14.9m | €7.66m | −499,748 € | — | 2025 |
| 8 | Wind4Wallonia 2 6000 Charleroi | €48.7m | €5.79m | €10.2m | — | 2025 |
| 9 | ActiVent Wallonie 6000 Charleroi | €102.1m | €5.22m | €18.6m | — | 2025 |
| 10 | ENoRa 7500 Tournai | €3.88m | €3.36m | €1.94m | — | 2025 |
| 11 | MyPower 7700 Mouscron | €6.58m | €3.26m | 601,011 € | — | 2024 |
| 12 | Wind4Wallonia 3 6000 Charleroi | €18.3m | €2.58m | €2.86m | — | 2025 |
| 13 | Green City Wallonie 3 7330 Saint-Ghislain | €26.1m | €1.56m | €3.80m | — | 2025 |
| 14 | Snow Events International 7780 Comines-Warneton | €3.98m | €1.41m | −33,803 € | 5.3 | 2025 |
| 15 | Wind2Trucks 7500 Tournai | €3.67m | €1.03m | €3.25m | — | 2025 |
| 16 | Les Moulins du Haut-Pays 7370 Dour | €2.67m | 906,422 € | €1.21m | — | 2025 |
| 17 | Cooperative pour les Energies du Futur 7900 Leuze-en-Hainaut | €10.1m | 277,927 € | €8.74m | 6.8 | 2025 |
| 18 | Enora Leuze 7500 Tournai | 483,615 € | 240,334 € | 27,059 € | — | 2025 |
| 19 | Njpac 7134 Binche | 40,889 € | 126,484 € | 14,332 € | — | 2025 |
| 20 | Cofaren 7740 Pecq | 844,061 € | 109,146 € | 160,610 € | — | 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 · Hainaut →
Other sectors · Hainaut
- 01 Crop and animal production, hunting and related service activities122
- 08 Other mining and quarrying15
- 10 Manufacture of food products76
- 11 Manufacture of beverages10
- 13 Manufacture of textiles13
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials14
- 18 Printing and reproduction of recorded media17
- 20 Manufacture of chemicals and chemical products37
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations11
- 22 Manufacture of rubber and plastic products20
- 23 Manufacture of other non-metallic mineral products37
- 24 Manufacture of basic metals19
- 25 Manufacture of fabricated metal products, except machinery and equipment66
- 27 Manufacture of electrical equipment10
- 28 Manufacture of machinery and equipment n.e.c.21
- 32 Other manufacturing10
- 33 Repair, maintenance and installation of machinery and equipment21
- 38 Waste collection, recovery and disposal activities29
- 41 Construction of residential and non-residential buildings153
- 42 Civil engineering24
- 43 Specialised construction activities358
- 46 Wholesale trade293
- 47 Retail trade544
- 49 Land transport and transport via pipelines100
- 52 Warehousing, storage and support activities for transportation36
- 55 Accommodation19
- 56 Food and beverage service activities190
- 59 Motion picture, video and television programme production, sound recording and music publishing activities14
- 62 Computer programming, consultancy and related activities88
- 63 Computing infrastructure, data processing, hosting and other information service activities10
- 64 Financial service activities, except insurance and pension funding99
- 66 Activities auxiliary to financial services and insurance activities54
- 68 Real estate activities281
- 69 Legal and accounting activities96
- 70 Activities of head offices and management consultancy187
- 71 Architectural and engineering activities; technical testing and analysis92
- 73 Activities of advertising, market research and public relations34
- 74 Other professional, scientific and technical activities13
- 75 Veterinary activities14
- 77 Rental and leasing activities19
- 79 Travel agency, tour operator and other reservation service and related activities12
- 81 Services to buildings and landscape activities52
- 82 Office administrative, office support and other business support activities58
- 85 Education109
- 86 Human health activities233
- 87 Residential care activities81
- 88 Social work activities without accommodation55
- 90 Arts creation and performing arts activities23
- 93 Sports activities and amusement and recreation activities33
- 94 Activities of membership organisations22
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles47
- 96 Personal service activities65
Municipalities with the most companies in the sector · Hainaut
- 7500 Tournai (Ere, Saint-Maur)20
- 6220 Fleurus (Heppignies, Lambusart, Wangenies)15
- 7900 Leuze-en-Hainaut (Grandmetz)5
- 6000 Charleroi4
- 6142 Fontaine-l'Évêque (Leernes)4
- 7700 Mouscron (Luingne)4
- 7120 Estinnes (Croix-Lez-Rouveroy, Estinnes-Au-Mont, Estinnes-Au-Val, …)3
- 6001 Charleroi (Marcinelle)2
- 6041 Charleroi (Gosselies)2
- 6240 Farciennes (Pironchamps)2
- 6030 Charleroi (Goutroux, Marchienne-Au-Pont)1
- 6040 Charleroi (Jumet)1
Frequently asked questions
Which company in Electricity, gas, steam and air conditioning supply in Hainaut has the highest revenue?
ORES Assets, with €1.16bn 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 20 that publish it, out of 78 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 · Hainaut
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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.