Ranking · Walloon Brabant · NACE 35
Electricity, gas, steam and air conditioning supply: the largest companies in Walloon Brabant
As of 14 Nov 2026, 42 companies in Electricity, gas, steam and air conditioning supply (NACE 35) in Walloon Brabant publish total assets in recent accounts (financial years 2023 to 2026). The top 10 account for €752.0m, out of €782.8m for all of them; median total assets are 770,085 €. Eneco Wind Belgium leads with €510.6m (financial year 2025).
Top 42 · Electricity, gas, steam and air conditioning supply · Walloon Brabant
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 | Eneco Wind Belgium 1300 Wavre | €510.6m | €15.1m | €351.9m | 46.7 | 2025 |
| 2 | Reseau d'Energies de Wavre 1301 Wavre | €84.5m | €14.7m | €62.0m | 35.0 | 2025 |
| 3 | Hegoa Wind 1300 Wavre | €62.2m | €17.9m | €17.6m | — | 2026 |
| 4 | Sirocco Wind 1300 Wavre | €38.1m | €7.41m | €11.6m | — | 2026 |
| 5 | Bayamo Wind 1300 Wavre | €15.6m | — | €10.5m | 4.2 | 2026 |
| 6 | Newcastle Wind 1300 Wavre | €14.6m | €2.58m | €3.86m | — | 2026 |
| 7 | Cordona Wind 1300 Wavre | €7.72m | €1.93m | €3.69m | — | 2026 |
| 8 | Mont Eole 1360 Perwez | €7.42m | — | €1.10m | — | 2025 |
| 9 | Solano Wind 1300 Wavre | €6.57m | €2.87m | €4.78m | — | 2026 |
| 10 | HesbEnergie 1350 Orp-Jauche | €4.69m | — | €3.42m | 1.1 | 2025 |
| 11 | Mont Godinne Green Energy 1348 Ottignies-Louvain-la-Neuve | €4.54m | — | −618,022 € | 5.4 | 2023 |
| 12 | Theta Solar Energy 1435 Mont-Saint-Guibert | €4.35m | — | €1.42m | — | 2025 |
| 13 | Moulin du Zéphyr 1350 Orp-Jauche | €3.67m | — | 442,631 € | — | 2025 |
| 14 | La Hulpe Real Estate 1310 La Hulpe | €3.52m | — | −48,122 € | — | 2025 |
| 15 | Blue Enerfreeze Belgique 1480 Tubize | €2.91m | — | 793,748 € | — | 2025 |
| 16 | Kiwa1 1310 La Hulpe | €2.19m | — | €1.12m | — | 2025 |
| 17 | Bali Wind 1300 Wavre | €1.40m | — | −€2.07m | — | 2026 |
| 18 | Cogenerys 1435 Mont-Saint-Guibert | €1.28m | — | 321,539 € | — | 2025 |
| 19 | Gamma Solar Energy 1435 Mont-Saint-Guibert | €1.24m | — | 385,075 € | — | 2025 |
| 20 | Les Vents de l'Ornoi 1300 Wavre | 875,940 € | 843,944 € | 83,715 € | — | 2026 |
| 21 | Epsilon Solar Energy 1435 Mont-Saint-Guibert | 789,414 € | — | 295,757 € | — | 2025 |
| 22 | Greendyle 1471 Genappe | 750,756 € | 62,965 € | 156,150 € | — | 2025 |
| 23 | Energy Pool Belgium 1380 Lasne | 587,003 € | — | −178,780 € | 2.7 | 2025 |
| 24 | Delta Solar Energy 1435 Mont-Saint-Guibert | 519,823 € | — | 163,138 € | — | 2025 |
| 25 | NW Storm BeNeLux 1421 Braine-l'Alleud | 322,544 € | — | −172,793 € | — | 2025 |
| 26 | Sanitaire, Chauffage, Solaire 1470 Genappe | 300,326 € | — | 292,423 € | — | 2025 |
| 27 | Coolwave 1410 Waterloo | 287,389 € | — | 41,742 € | 4.0 | 2025 |
| 28 | Green Vest 1301 Wavre | 276,162 € | — | 209,496 € | — | 2025 |
| 29 | Les Vents de Perwez 1300 Wavre | 194,963 € | — | 189,969 € | — | 2026 |
| 30 | Noldim 1480 Tubize | 188,083 € | — | −36,701 € | — | 2025 |
| 31 | Rigenee Solar Plant 1495 Villers-la-Ville | 138,160 € | — | 23,160 € | — | 2025 |
| 32 | Romesco 1400 Nivelles | 105,037 € | — | 22,241 € | — | 2025 |
| 33 | Brassart Eau Douce 1435 Mont-Saint-Guibert | 94,659 € | — | 47,505 € | 1.0 | 2025 |
| 34 | Electricité TVDB 1367 Ramillies | 92,246 € | — | 15,405 € | — | 2025 |
| 35 | Energ’Ittre 1460 Ittre | 61,722 € | — | 49,756 € | — | 2025 |
| 36 | Corswind 1410 Waterloo | 46,163 € | — | 40,778 € | — | 2024 |
| 37 | Electravent 1390 Grez-Doiceau | 43,772 € | — | −77,355 € | — | 2025 |
| 38 | Cogesyn 1410 Waterloo | 43,072 € | — | 32,989 € | — | 2025 |
| 39 | Biomethanivelles 1460 Ittre | 38,831 € | — | −17,700 € | — | 2025 |
| 40 | VE Solar Energy 1 1420 Braine-l'Alleud | 953 € | — | −4,547 € | — | 2025 |
| 41 | VE Solar Energy 2 1420 Braine-l'Alleud | 341 € | — | −4,359 € | — | 2025 |
| 42 | VE Solar Energy 3 1420 Braine-l'Alleud | 255 € | — | −4,245 € | — | 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 · Walloon Brabant →
Other sectors · Walloon Brabant
- 01 Crop and animal production, hunting and related service activities368
- 02 Forestry and logging50
- 08 Other mining and quarrying11
- 10 Manufacture of food products186
- 11 Manufacture of beverages42
- 13 Manufacture of textiles23
- 14 Manufacture of wearing apparel26
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials57
- 17 Manufacture of paper and paper products13
- 18 Printing and reproduction of recorded media152
- 20 Manufacture of chemicals and chemical products46
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations46
- 22 Manufacture of rubber and plastic products29
- 23 Manufacture of other non-metallic mineral products56
- 24 Manufacture of basic metals16
- 25 Manufacture of fabricated metal products, except machinery and equipment165
- 26 Manufacture of computer, electronic and optical products66
- 27 Manufacture of electrical equipment38
- 28 Manufacture of machinery and equipment n.e.c.67
- 29 Manufacture of motor vehicles, trailers and semi-trailers23
- 30 Manufacture of other transport equipment14
- 31 Manufacture of furniture80
- 32 Other manufacturing94
- 33 Repair, maintenance and installation of machinery and equipment87
- 37 Sewerage13
- 38 Waste collection, recovery and disposal activities21
- 41 Construction of residential and non-residential buildings593
- 42 Civil engineering71
- 43 Specialised construction activities1,986
- 46 Wholesale trade1,783
- 47 Retail trade2,143
- 49 Land transport and transport via pipelines250
- 51 Air transport15
- 52 Warehousing, storage and support activities for transportation80
- 53 Postal and courier activities11
- 55 Accommodation102
- 56 Food and beverage service activities1,007
- 58 Publishing activities166
- 59 Motion picture, video and television programme production, sound recording and music publishing activities234
- 60 Programming, broadcasting, news agency and other content distribution activities21
- 61 Telecommunication35
- 62 Computer programming, consultancy and related activities1,984
- 63 Computing infrastructure, data processing, hosting and other information service activities159
- 64 Financial service activities, except insurance and pension funding733
- 65 Insurance, reinsurance and pension funding, except compulsory social security24
- 66 Activities auxiliary to financial services and insurance activities412
- 68 Real estate activities2,735
- 69 Legal and accounting activities1,163
- 70 Activities of head offices and management consultancy4,026
- 71 Architectural and engineering activities; technical testing and analysis906
- 72 Scientific research and development101
- 73 Activities of advertising, market research and public relations1,026
- 74 Other professional, scientific and technical activities340
- 75 Veterinary activities118
- 77 Rental and leasing activities136
- 78 Employment activities99
- 79 Travel agency, tour operator and other reservation service and related activities49
- 80 Investigation and security activities37
- 81 Services to buildings and landscape activities493
- 82 Office administrative, office support and other business support activities641
- 85 Education349
- 86 Human health activities2,543
- 87 Residential care activities75
- 88 Social work activities without accommodation85
- 90 Arts creation and performing arts activities186
- 91 Libraries, archives, museums and other cultural activities13
- 93 Sports activities and amusement and recreation activities295
- 94 Activities of membership organisations44
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles195
- 96 Personal service activities380
Municipalities with the most companies in the sector · Walloon Brabant
- 1300 Wavre (Limal)10
- 1435 Mont-Saint-Guibert (Corbais, Hévillers)6
- 1410 Waterloo3
- 1420 Braine-l'Alleud3
- 1301 Wavre (Bierges)2
- 1310 La Hulpe2
- 1350 Orp-Jauche (Enines, Folx-Les-Caves, Jandrain-Jandrenouille, …)2
- 1460 Ittre (Virginal-Samme)2
- 1480 Tubize (Clabecq, Oisquercq, Saintes)2
- 1348 Ottignies-Louvain-la-Neuve (Louvain-La-Neuve)1
- 1360 Perwez (Malèves-Sainte-Marie-Wastines, Orbais, Thorembais-Les-Béguines, …)1
- 1367 Ramillies (Autre-Eglise, Bomal, Gérompont, …)1
Frequently asked questions
Which is the largest company in Electricity, gas, steam and air conditioning supply in Walloon Brabant?
By total assets, it is Eneco Wind Belgium (€510.6m, financial year 2025).
How many companies in Electricity, gas, steam and air conditioning supply in Walloon Brabant are ranked?
42 out of 42 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.