Nuclear power companies

The Public JSC National nuclear energy generating company "Energoatom" () is the public enterprise operating all four nuclear power plants in Ukraine (Zaporizhzhia, Rivne, South Ukraine, and Khmelnytskyi). It is the largest producer of electricity in Ukraine.

Uniper SE is a German multinational energy company based in Düsseldorf, Germany, which has been a state-owned enterprise since late 2022. It is one of the biggest energy companies by revenue in Europe. The name of the company is a portmanteau of "unique" and "performance", which was given by long-term employee Gregor Recke. Uniper was formed by the separation of E.ON's fossil fuel assets into a separate company that began operating on 1 January 2016. In 2019, the company employed about 6,800 people in over 40 countries. In 2018, around one-third of the employees were based in German