ČEZ Group is a Czech energy company, the largest utility company in Central and Eastern Europe.

Vestas Wind Systems A/S is a Danish manufacturer, seller, installer, and servicer of wind turbines.

TotalEnergies SE is a French multinational integrated oil and gas company founded in 1924 and one of the seven "supermajor" oil companies.

Schneider Electric SE is a French multinational company that specializes in energy management and automation solutions.

Vedanta Resources Limited is a diversified natural resources company headquartered in London, United Kingdom, with its main operations in India.

Equinor ASA, formerly Statoil, is a Norwegian state-owned multinational energy company headquartered in Stavanger, Norway.

DNO ASA is a Norwegian oil and gas company focused on the Middle East and the North Sea.

OMV Petrom is the largest oil and gas company in Romania, majority-owned by Austria's OMV Group.

PKN Orlen is a Polish oil refiner and petrol retailer, the largest company in Central and Eastern Europe.

Petrobras is a Brazilian state-owned multinational corporation in the petroleum industry, officially known as Petróleo Brasileiro S.A.

E.ON is a European electric utility company with Swedish operations.

Vattenfall is a Swedish multinational power company owned by the Swedish state.