Electricity, gas, steam and air conditioning supply: highest revenue in Liège province
As of 14 Nov 2026, 22 companies in Electricity, gas, steam and air conditioning supply (NACE 35) in Liège province publish their revenue in recent accounts (financial year 2025). The top 10 account for €3.03bn, out of €3.05bn for all of them; median revenue is €4.58m. TotalEnergies Power & Gas Belgium leads with €1.61bn (financial year 2025).
Top 22 · Electricity, gas, steam and air conditioning supply · Liège province
Ranked by revenue published in the latest filed accounts (accounts less than 3 years old).
| # | Company | Total assets | Revenue | Equity | FTE | Year |
|---|---|---|---|---|---|---|
| 1 | TotalEnergies Power & Gas Belgium 4000 Liège | €448.7m | €1.61bn | €65.6m | 181.4 | 2025 |
| 2 | Power Online 4020 Liège | €198.0m | €574.7m | €35.1m | 21.1 | 2025 |
| 3 | RESA 4000 Liège | €2.25bn | €386.4m | €985.6m | 930.6 | 2025 |
| 4 | TotalEnergies Gas & Power Western Europe 4000 Liège | €48.3m | €324.2m | 153,118 € | — | 2025 |
| 5 | Clinique Psychiatrique des Frères Alexiens 4841 Welkenraedt | €27.0m | €37.0m | €9.13m | 400.0 | 2025 |
| 6 | Balteau I.E. 4420 Saint-Nicolas | €18.3m | €30.6m | €7.51m | 130.4 | 2025 |
| 7 | Codel 4020 Liège | €10.6m | €26.8m | €2.27m | 2.0 | 2025 |
| 8 | John Cockerill Hydrogen Belgium 4100 Seraing | €161.9m | €14.3m | €22.0m | 143.2 | 2025 |
| 9 | Green4Power 4000 Liège | €80.1m | €13.0m | €9.37m | — | 2025 |
| 10 | Infratech 4890 Thimister-Clermont | €7.54m | €11.9m | €5.58m | 21.1 | 2025 |
| 11 | TotalEnergies Integrated Power ESS Belgium 4000 Liège | €59.6m | €4.60m | 401,065 € | — | 2025 |
| 12 | John Cockerill Energy 4100 Seraing | €5.14m | €4.55m | −847,805 € | 28.2 | 2025 |
| 13 | CORETEC Services 4340 Awans | €15.8m | €4.16m | €1.36m | 3.7 | 2025 |
| 14 | Demainvest 4030 Liège | €81.4m | €3.32m | €6.71m | — | 2025 |
| 15 | 2Valorise Amel 4770 Amel | €20.9m | €3.21m | 716,933 € | 20.6 | 2025 |
| 16 | Dries Energy 4770 Amel | €3.16m | €1.02m | 755,836 € | — | 2025 |
| 17 | Val Notre-Dame Internat 4520 Wanze | 606,224 € | €1.00m | 54,343 € | 16.2 | 2025 |
| 18 | Intelligent Technology Network 4280 Hannut | 120,462 € | 842,607 € | 104,533 € | 1.9 | 2025 |
| 19 | Ecolma 4400 Flémalle | €4.22m | 822,693 € | €4.20m | — | 2025 |
| 20 | Lampiris Wind 4000 Liège | 213,232 € | 50,662 € | 105,275 € | — | 2025 |
| 21 | WAL d'OR 4570 Marchin | 133,441 € | 9,994 € | 52,672 € | — | 2025 |
| 22 | Ferréole 4190 Ferrières | 355,780 € | 4,893 € | 344,811 € | — | 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 · Liège province →
Other sectors · Liège province
- 01 Crop and animal production, hunting and related service activities34
- 10 Manufacture of food products68
- 13 Manufacture of textiles10
- 16 Manufacture of wood and of products of wood and cork, except furniture; manufacture of articles of straw and plaiting materials19
- 18 Printing and reproduction of recorded media10
- 20 Manufacture of chemicals and chemical products22
- 21 Manufacture of basic pharmaceutical products and pharmaceutical preparations18
- 22 Manufacture of rubber and plastic products11
- 23 Manufacture of other non-metallic mineral products24
- 24 Manufacture of basic metals17
- 25 Manufacture of fabricated metal products, except machinery and equipment71
- 26 Manufacture of computer, electronic and optical products21
- 27 Manufacture of electrical equipment16
- 28 Manufacture of machinery and equipment n.e.c.24
- 32 Other manufacturing14
- 33 Repair, maintenance and installation of machinery and equipment18
- 38 Waste collection, recovery and disposal activities21
- 41 Construction of residential and non-residential buildings101
- 42 Civil engineering22
- 43 Specialised construction activities225
- 46 Wholesale trade244
- 47 Retail trade313
- 49 Land transport and transport via pipelines71
- 52 Warehousing, storage and support activities for transportation38
- 55 Accommodation25
- 56 Food and beverage service activities165
- 58 Publishing activities14
- 59 Motion picture, video and television programme production, sound recording and music publishing activities18
- 62 Computer programming, consultancy and related activities70
- 64 Financial service activities, except insurance and pension funding117
- 66 Activities auxiliary to financial services and insurance activities25
- 68 Real estate activities228
- 69 Legal and accounting activities69
- 70 Activities of head offices and management consultancy201
- 71 Architectural and engineering activities; technical testing and analysis70
- 72 Scientific research and development16
- 73 Activities of advertising, market research and public relations24
- 74 Other professional, scientific and technical activities11
- 77 Rental and leasing activities21
- 78 Employment activities17
- 79 Travel agency, tour operator and other reservation service and related activities10
- 81 Services to buildings and landscape activities34
- 82 Office administrative, office support and other business support activities45
- 85 Education94
- 86 Human health activities155
- 87 Residential care activities57
- 88 Social work activities without accommodation55
- 90 Arts creation and performing arts activities38
- 93 Sports activities and amusement and recreation activities39
- 94 Activities of membership organisations33
- 95 Repair and maintenance of computers, personal and household goods, and motor vehicles and motorcycles34
- 96 Personal service activities50
Municipalities with the most companies in the sector · Liège province
- 4000 Liège (Glain, Rocourt)15
- 4750 Bütgenbach (Elsenborn)7
- 4020 Liège (Bressoux, Jupille-Sur-Meuse, Wandre)5
- 4040 Herstal4
- 4960 Malmedy (Bevercé)4
- 4030 Liège (Grivegnee)3
- 4100 Seraing (Boncelles)3
- 4570 Marchin (Vyle-Et-Tharoul)3
- 4700 Eupen3
- 4770 Amel (Amblève, Meyerode)3
- 4870 Trooz (Forêt, Fraipont, Nessonvaux)3
- 4122 Neupré (Plainevaux)2
Frequently asked questions
Which company in Electricity, gas, steam and air conditioning supply in Liège province has the highest revenue?
TotalEnergies Power & Gas Belgium, with €1.61bn 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 22 that publish it, out of 95 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 · Liège province
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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.