E.ON

E.ON SE (marketed with an interpunct as E·ON) is a European holding company based in Essen, North Rhine-Westphalia, Germany. It runs one of the world's largest investor-owned electric utility service providers. The name comes from the Greek word aeon which means an age. The company is a component of the Euro Stoxx 50 stock market index.It operates in over 30 countries and serves over 33 million customers. It is one of the 30 members of the DAX stock index of major German companies and a member of the Global Titans 50 index. Its chief executive officer (Vorstandsvorsitzender) is Dr. Johannes Teyssen.E.ON separated its conventional power generation and energy trading operations into a new company, Uniper, on 1 January 2016, retaining its retail, distribution and nuclear operations. E.ON sold a majority stake in Uniper in September 2016.HistoryE.ON came into existence in 2000 through the merger of energy companies VEBA and VIAG (Vereinigte Industrieunternehmungen AG; United Industrial Enterprises Corporation). In the United Kingdom, Powergen was acquired by E.ON in January 2002. In 2003 E.ON entered the gas market through the acquisition of Ruhrgas (now E.ON Ruhrgas). E.ON Ruhrgas is represented in more than 20 countries in Europe.