Legal structure
Elia Group acts as a holding company owning Elia Transmission Belgium (Belgian TSO), Eurogrid International (comprising the activities of 50Hertz, the German TSO) and Elia Grid International (the Group’s international consultancy branch). Its main shareholder is the municipal holding Publi-T. Elia Group (formerly Elia System Operator SA/NV) has been listed on the regulated market of Euronext Brussels, since June 2005.

Please refer to the detailed shareholder structure for further information.
Elia Engineering is fully owned by Elia and is responsible for all engineering activities, while Elia Re is Elia’s reinsurance company.
- JAO, a joint service company of twenty Transmission System Operators from seventeen countries, responsible for the yearly, monthly and daily auctions of transmission rights on 27 borders in Europe. Acts as a fall-back for the European Market Coupling;
- HGRT (holding des gestionnaires de réseau de transport), a shareholder in the French-based European power exchange EPEX Spot SE;
- Coreso, the first joint regional technical coordination centre, shared by nine European transmission system operators. Coreso contributes to a number of EU objectives, namely the operational safety of the electricity system, the integration of large-scale renewable energy generation (wind energy) and the development of the electricity market in CWE;