Sector · NACE 3513

Transmission of electricity

24 Belgian companies whose main activity falls under NACE code 3513 have filed annual accounts. Their median solvency is 28.1% for financial year 2025.

Companies24
Median solvency28.1%
Median equity154,302 €
Founded in the last 3 years6

Sector medians

Computed by Idonis

Distribution across the sector's companies for financial year 2025: a quarter of companies sit below the 1st quartile, half below the median, three quarters below the 3rd quartile.

Indicator1st quartileMedian3rd quartileCompanies
Solvency 12.0%28.1%39.1% 20
Current ratio 0.631.302.74 21
ROE 3.6%9.4%44.0% 18
Equity 67,748 €154,302 €€1.99m 21
Total assets 254,837 €561,291 €€28.4m 21
Net result −3,240 €15,257 €685,982 € 21

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: Transmission of electricity

Ranked by total assets in the latest filed accounts. This is a size criterion, not an assessment.

#Company Total assetsRevenue EquityFTEYear
1 Elia Transmission Belgium 1000 Brussels €10.5bn €1.52bn €3.86bn 611.6 2025
2 Elia Asset 1000 Brussels €7.19bn €963.7m €1.73bn 999.9 2025
3 Elia Group 1000 Brussels €7.15bn — €5.05bn 9.3 2025
4 WindGrid 1000 Brussels €118.6m — €37.9m 4.1 2025
5 ABB 1831 Machelen (Brab.) €113.3m €207.0m €32.4m 233.6 2025
6 Ruien Energy Storage 8580 Avelgem €26.0m €4.50m €1.47m — 2026
7 Ruien Energy Storage 2 8580 Avelgem €14.5m — €4.35m — 2026
8 Ruien Energy Storage 3 8580 Avelgem €5.54m — €2.50m — 2026
9 AEP Solar 21 2200 Herentals €5.07m — €1.72m — 2025
10 Montea Green Energy Belgium 9320 Aalst €2.47m — 151,624 € — 2025
11 Sotik 3560 Lummen €1.76m — 487,199 € — 2025
12 Inverter Service 8560 Wevelgem €1.63m — 311,475 € 6.8 2025
13 AIM SLR 9051 Ghent 561,291 € — 10,382 € — 2025
14 J & J Francque 9982 Sint-Laureins 494,057 € — 67,748 € — 2025
15 Dispatch Topaz 1000 Brussels 405,893 € — −13,938 € — 2025
16 Solfunding 9051 Ghent 321,054 € — 80,929 € — 2025
17 Eliane MAS I 2800 Mechelen 275,022 € — −332,479 € — 2025
18 Solsam 9290 Berlare 254,837 € — 187,970 € — 2025
19 RESA Innovation et Technologie 4000 Liège 247,479 € — 80,269 € — 2025
20 Zeestroom 3050 Oud-Heverlee 194,390 € — 154,302 € — 2025

“—”: not published. Small companies (micro and abridged accounts) do not have to publish their revenue.

See all 24 companies, full list →

Related sectors

← The whole Electricity, gas, steam and air conditioning supply sector (NACE 35)

Frequently asked questions

How many Transmission of electricity companies are there in Belgium?

24 Belgian companies whose main activity falls under NACE code 3513 (Transmission of electricity) have filed annual accounts with the National Bank.

What is the median solvency in Transmission of electricity?

For financial year 2025, median solvency (equity over total assets) is 28.1%. The middle half of companies lies between 12.0% and 39.1% (20 companies).

What is the largest company in Transmission of electricity?

By total assets, it is Elia Transmission Belgium (€10.5bn, financial year 2025).

Where are Transmission of electricity companies based?

The municipalities with the most: Brussels (5), Avelgem (4), Ghent (2).

Idonis

Analyse companies in Transmission of electricity

Filter these companies by size, soundness and trend, follow them and get an alert when their accounts or publications change.

Open the full file →
Free account in 30 seconds, by email. No bank card.

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 12 Nov 2026.