Electricity, gas, steam and air conditioning supply
1,060 Belgian companies whose main activity falls under NACE code 35 have filed annual accounts. Their median solvency is 34.4% for financial year 2024.
Sector medians
Computed by IdonisDistribution across the sector's companies for financial year 2024: a quarter of companies sit below the 1st quartile, half below the median, three quarters below the 3rd quartile.
| Indicator | 1st quartile | Median | 3rd quartile | Companies |
|---|---|---|---|---|
| Solvency | 11.8% | 34.4% | 67.4% | 961 |
| Current ratio | 0.61 | 1.23 | 2.39 | 925 |
| ROE | -3.4% | 5.3% | 22.5% | 843 |
| Equity | 44,961 € | 436,435 € | €2.39m | 970 |
| Total assets | 321,396 € | €1.73m | €8.57m | 969 |
| Net result | −15,764 € | 13,589 € | 191,571 € | 968 |
| Headcount (avg FTE) | 0.0 | 2.2 | 11.0 | 266 |
Medians computed by Idonis from annual accounts filed with the National Bank, all sizes combined. The same panel is the sector benchmark on every company page. Method
Largest companies: Electricity, gas, steam and air conditioning supply
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 | Electrabel 1000 Brussels | €20.5bn | €13.1bn | €10.2bn | 4,261.0 | 2025 |
| 2 | Elia Transmission Belgium 1000 Brussels | €10.5bn | €1.52bn | €3.86bn | 611.6 | 2025 |
| 3 | Fluvius System Operator 9090 Merelbeke-Melle | €10.2bn | €2.90bn | €993.8m | 5,326.3 | 2025 |
| 4 | Elia Asset 1000 Brussels | €7.19bn | €963.7m | €1.73bn | 999.9 | 2025 |
| 5 | Elia Group 1000 Brussels | €7.15bn | — | €5.05bn | 9.3 | 2025 |
| 6 | ORES Assets 6041 Charleroi | €5.23bn | €1.16bn | €2.07bn | — | 2025 |
| 7 | Fluxys 1040 Brussels | €4.79bn | €7.40m | €1.97bn | 49.8 | 2025 |
| 8 | Fluvius West 8500 Kortrijk | €3.38bn | €541.7m | €1.30bn | — | 2025 |
| 9 | Fluvius Limburg 3500 Hasselt | €3.26bn | €434.3m | €1.66bn | — | 2025 |
| 10 | Fluvius Imewo 9090 Merelbeke-Melle | €3.07bn | €544.9m | €772.5m | — | 2025 |
| 11 | Operateur de Reseaux d'Energies 6041 Charleroi | €2.83bn | €920.9m | 461,806 € | 3,000.0 | 2025 |
| 12 | Fluvius Zenne-Dijle 3210 Lubbeek | €2.52bn | €354.2m | €554.6m | — | 2025 |
| 13 | FLUVIUS Antwerpen 2100 Antwerp | €2.46bn | €430.9m | €755.4m | — | 2025 |
| 14 | Luminus 1210 Saint-Josse-ten-Noode | €2.37bn | €3.12bn | €772.5m | 1,181.2 | 2025 |
| 15 | Fluxys Belgium 1040 Brussels | €2.27bn | €722.2m | €399.7m | 918.5 | 2025 |
| 16 | RESA 4000 Liège | €2.25bn | €386.4m | €985.6m | 930.6 | 2025 |
| 17 | EDF Belgium 1210 Saint-Josse-ten-Noode | €1.96bn | €182.5m | €1.47bn | — | 2025 |
| 18 | Fluxys Europe 1040 Brussels | €1.78bn | €10.7m | €1.71bn | 10.9 | 2025 |
| 19 | Sibelga 1000 Brussels | €1.52bn | €396.7m | €861.4m | — | 2025 |
| 20 | Fluvius Halle-Vilvoorde 1800 Vilvoorde | €1.36bn | €238.2m | €343.2m | — | 2025 |
“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.
Where are they based?
Municipalities with the most
- 1000 Brussels45
- 3550 Heusden-Zolder (Heusden, Zolder)28
- 3500 Hasselt (Sint-Lambrechts-Herk)26
- 8400 Ostend (Stene, Zandvoorde)24
- 8500 Kortrijk23
- 9051 Ghent (Afsnee, Sint-Denijs-Westrem)23
- 1210 Saint-Josse-ten-Noode21
- 7500 Tournai (Ere, Saint-Maur)20
- 2800 Mechelen (Walem)19
- 1050 Ixelles16
- 2300 Turnhout15
- 4000 Liège (Glain, Rocourt)15
Electricity, gas, steam and air conditioning supply: rankings by region and province
The largest companies in the sector in each region and province, by municipality of the registered office. A ranking is published once 10 companies in the sector publish the figure there.
| Area | Total assets | Revenue | Headcount |
|---|---|---|---|
| Flanders | Largest | Revenue | Employers |
| Wallonia | Largest | Revenue | Employers |
| Brussels | Largest | Revenue | Employers |
| Antwerp province | Largest | Revenue | Employers |
| Flemish Brabant | Largest | Revenue | — |
| Limburg | Largest | Revenue | Employers |
| East Flanders | Largest | Revenue | Employers |
| West Flanders | Largest | Revenue | Employers |
| Walloon Brabant | Largest | — | — |
| Hainaut | Largest | Revenue | Employers |
| Liège province | Largest | Revenue | Employers |
| Luxembourg province | Largest | — | — |
| Namur province | Largest | — | — |
Sub-sectors
- 3511 Production of electricity from non-renewable sources602
- 3515 Trade of electricity246
- 3514 Distribution of electricity60
- 3512 Production of electricity from renewable sources50
- 3530 Steam and air conditioning supply29
- 3513 Transmission of electricity24
- 3521 Manufacture of gas18
- 3522 Distribution of gaseous fuels through mains14
Frequently asked questions
How many Electricity, gas, steam and air conditioning supply companies are there in Belgium?
1,060 Belgian companies whose main activity falls under NACE code 35 (Electricity, gas, steam and air conditioning supply) have filed annual accounts with the National Bank.
What is the median solvency in Electricity, gas, steam and air conditioning supply?
For financial year 2024, median solvency (equity over total assets) is 34.4%. The middle half of companies lies between 11.8% and 67.4% (961 companies).
What is the largest company in Electricity, gas, steam and air conditioning supply?
By total assets, it is Electrabel (€20.5bn, financial year 2025).
Where are Electricity, gas, steam and air conditioning supply companies based?
The municipalities with the most: Brussels (45), Heusden-Zolder (28), Hasselt (26).
Analyse companies in Electricity, gas, steam and air conditioning supply
Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.
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.