Ranking · Hainaut · NACE 35
Electricity, gas, steam and air conditioning supply: the largest companies in Hainaut
As of 14 Nov 2026, 78 companies in Electricity, gas, steam and air conditioning supply (NACE 35) in Hainaut publish total assets in recent accounts (financial years 2024 to 2025). The top 10 account for €8.57bn, out of €8.88bn for all of them; median total assets are €3.24m. ORES Assets leads with €5.23bn (financial year 2025).
Top 50 · Electricity, gas, steam and air conditioning supply · Hainaut
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 | 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 | Eol'Wapi 7500 Tournai | €121.9m | €17.4m | €81.8m | — | 2025 |
| 4 | ActiVent Wallonie 6000 Charleroi | €102.1m | €5.22m | €18.6m | — | 2025 |
| 5 | Association Intercommunale d'Electricité du Sud du Hainaut 6470 Sivry-Rance | €80.3m | €21.3m | €49.8m | 52.7 | 2025 |
| 6 | TotalEnergies - Centrale Electrique Marchienne-au-Pont 6030 Charleroi | €66.1m | €134.9m | €36.9m | 39.0 | 2025 |
| 7 | Wind4Wallonia 2 6000 Charleroi | €48.7m | €5.79m | €10.2m | — | 2025 |
| 8 | Les Vents de Damre 7500 Tournai | €33.5m | — | 215,530 € | — | 2025 |
| 9 | Gouynrg 7500 Tournai | €30.8m | — | −€1.29m | — | 2025 |
| 10 | Eole Agri Enviro 7500 Tournai | €29.8m | — | 403,288 € | — | 2025 |
| 11 | Green City Wallonie 3 7330 Saint-Ghislain | €26.1m | €1.56m | €3.80m | — | 2025 |
| 12 | Electrawinds Biomasse Mouscron 7700 Mouscron | €25.7m | 0 € | €10.8m | — | 2025 |
| 13 | Cinergie 6224 Fleurus | €22.8m | — | €10.3m | 12.1 | 2025 |
| 14 | Tabnrg 7500 Tournai | €19.1m | — | €3.56m | — | 2025 |
| 15 | Wind4Wallonia 3 6000 Charleroi | €18.3m | €2.58m | €2.86m | — | 2025 |
| 16 | Cgnee Belgium Wind Energy Company 7000 Mons | €14.9m | €7.66m | −499,748 € | — | 2025 |
| 17 | Eoliennes de la Fontaine 7500 Tournai | €12.4m | — | 647,943 € | — | 2025 |
| 18 | Walvert Mettet 6240 Farciennes | €10.5m | — | 692,504 € | — | 2024 |
| 19 | Cooperative pour les Energies du Futur 7900 Leuze-en-Hainaut | €10.1m | 277,927 € | €8.74m | 6.8 | 2025 |
| 20 | Les Vents d'Arpes 7500 Tournai | €9.46m | — | €2.41m | — | 2025 |
| 21 | Magna Wind Park 7500 Tournai | €9.09m | — | €2.12m | — | 2025 |
| 22 | Hydroelectricite d'Ourthe et Sambre 6142 Fontaine-l'Évêque | €8.59m | — | €3.29m | — | 2025 |
| 23 | Maduf 7500 Tournai | €8.52m | — | 577,139 € | — | 2025 |
| 24 | Comptoir Citoyen des Energies 7900 Leuze-en-Hainaut | €8.00m | €30.8m | €3.07m | 10.9 | 2025 |
| 25 | Enairgie du Hainaut 7500 Tournai | €7.10m | — | €1.89m | — | 2025 |
| 26 | Walvert Estinnes 6240 Farciennes | €7.06m | — | −100,981 € | — | 2024 |
| 27 | MyPower 7700 Mouscron | €6.58m | €3.26m | 601,011 € | — | 2024 |
| 28 | Eolienne de la Dudule 7500 Tournai | €6.38m | — | −423,007 € | — | 2025 |
| 29 | Vanheede Windpower 7040 Quévy | €5.60m | — | €1.60m | — | 2025 |
| 30 | Yorkshire Energie 7120 Estinnes | €4.89m | — | −451,587 € | — | 2025 |
| 31 | Eolienne de la Bataille 7500 Tournai | €4.74m | — | −168,482 € | — | 2025 |
| 32 | Districoal 6060 Charleroi | €4.44m | — | €2.44m | 13.1 | 2025 |
| 33 | Windlog 7500 Tournai | €4.38m | — | 387,490 € | — | 2025 |
| 34 | D&B Green Solution 7120 Estinnes | €4.11m | — | €2.38m | 9.0 | 2025 |
| 35 | Snow Events International 7780 Comines-Warneton | €3.98m | €1.41m | −33,803 € | 5.3 | 2025 |
| 36 | ENoRa 7500 Tournai | €3.88m | €3.36m | €1.94m | — | 2025 |
| 37 | Wind2Trucks 7500 Tournai | €3.67m | €1.03m | €3.25m | — | 2025 |
| 38 | KVNRG 7500 Tournai | €3.60m | — | 759,704 € | — | 2025 |
| 39 | Vent de la Sille 7900 Leuze-en-Hainaut | €3.36m | — | 477,781 € | — | 2025 |
| 40 | Gallee Energy 1 7333 Saint-Ghislain | €3.12m | — | −469,564 € | — | 2025 |
| 41 | Parc Eolien de Leuze-en-Hainaut 7900 Leuze-en-Hainaut | €2.85m | — | €1.23m | — | 2025 |
| 42 | CHARLEROI hydro 6142 Fontaine-l'Évêque | €2.79m | — | €1.00m | — | 2025 |
| 43 | ROSELIES hydro 6142 Fontaine-l'Évêque | €2.70m | — | 935,293 € | — | 2025 |
| 44 | Auvelais Hydro 6142 Fontaine-l'Évêque | €2.69m | — | 946,739 € | — | 2025 |
| 45 | Les Moulins du Haut-Pays 7370 Dour | €2.67m | 906,422 € | €1.21m | — | 2025 |
| 46 | Ingelec 7700 Mouscron | €2.60m | — | €1.07m | 16.9 | 2025 |
| 47 | Neopark 6000 Charleroi | €1.84m | — | 40,847 € | — | 2025 |
| 48 | D&B Green Invest 7120 Estinnes | €1.20m | — | 202,101 € | — | 2025 |
| 49 | Immo Delhem 7700 Mouscron | 976,885 € | — | 677,377 € | — | 2025 |
| 50 | Tourn'Eole 7900 Leuze-en-Hainaut | 955,611 € | — | 172,916 € | — | 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.
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Electricity, gas, steam and air conditioning supply across Belgium → All sectors · Hainaut →
Other sectors · Hainaut
- 01 Crop and animal production, hunting and related service activities714
- 02 Forestry and logging56
- 08 Other mining and quarrying25
- 10 Manufacture of food products434
- 11 Manufacture of beverages73
- 13 Manufacture of textiles62
- 14 Manufacture of wearing apparel35
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials102
- 17 Manufacture of paper and paper products22
- 18 Printing and reproduction of recorded media147
- 20 Manufacture of chemicals and chemical products92
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations57
- 22 Manufacture of rubber and plastic products64
- 23 Manufacture of other non-metallic mineral products174
- 24 Manufacture of basic metals58
- 25 Manufacture of fabricated metal products, except machinery and equipment481
- 26 Manufacture of computer, electronic and optical products35
- 27 Manufacture of electrical equipment45
- 28 Manufacture of machinery and equipment n.e.c.99
- 29 Manufacture of motor vehicles, trailers and semi-trailers21
- 31 Manufacture of furniture64
- 32 Other manufacturing108
- 33 Repair, maintenance and installation of machinery and equipment199
- 37 Sewerage16
- 38 Waste collection, recovery and disposal activities117
- 39 Remediation activities and other waste management service activities10
- 41 Construction of residential and non-residential buildings1,393
- 42 Civil engineering146
- 43 Specialised construction activities3,559
- 46 Wholesale trade2,488
- 47 Retail trade4,229
- 49 Land transport and transport via pipelines675
- 50 Water transport17
- 51 Air transport12
- 52 Warehousing, storage and support activities for transportation161
- 53 Postal and courier activities56
- 55 Accommodation198
- 56 Food and beverage service activities2,153
- 58 Publishing activities71
- 59 Motion picture, video and television programme production, sound recording and music publishing activities115
- 60 Programming, broadcasting, news agency and other content distribution activities14
- 61 Telecommunication45
- 62 Computer programming, consultancy and related activities1,358
- 63 Computing infrastructure, data processing, hosting and other information service activities119
- 64 Financial service activities, except insurance and pension funding1,131
- 65 Insurance, reinsurance and pension funding, except compulsory social security29
- 66 Activities auxiliary to financial services and insurance activities788
- 68 Real estate activities3,553
- 69 Legal and accounting activities1,511
- 70 Activities of head offices and management consultancy2,584
- 71 Architectural and engineering activities; technical testing and analysis1,007
- 72 Scientific research and development89
- 73 Activities of advertising, market research and public relations543
- 74 Other professional, scientific and technical activities303
- 75 Veterinary activities179
- 77 Rental and leasing activities249
- 78 Employment activities62
- 79 Travel agency, tour operator and other reservation service and related activities93
- 80 Investigation and security activities44
- 81 Services to buildings and landscape activities525
- 82 Office administrative, office support and other business support activities652
- 85 Education436
- 86 Human health activities4,824
- 87 Residential care activities325
- 88 Social work activities without accommodation176
- 90 Arts creation and performing arts activities149
- 91 Libraries, archives, museums and other cultural activities21
- 92 Gambling and betting activities19
- 93 Sports activities and amusement and recreation activities349
- 94 Activities of membership organisations91
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles372
- 96 Personal service activities628
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 is the largest company in Electricity, gas, steam and air conditioning supply in Hainaut?
By total assets, it is ORES Assets (€5.23bn, financial year 2025).
How many companies in Electricity, gas, steam and air conditioning supply in Hainaut are ranked?
78 out of 78 active companies in the sector with their registered office in the area: those whose latest accounts are less than 3 years old.
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.
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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 14 Nov 2026.