E.ON SE is a European multinational electric utility company based in Essen, Germany. It operates as one of the world's largest investor-owned electric utility service providers. The name originates from the Latin word aeon, derived from the Greek αἰών aion, which means age or "infinity", with the period being added to create secondary meanings of "energy" (E) and "illumination" (ON). The company is a component of the Euro Stoxx 50 stock market index, DAX stock index and a member of the Dow Jones Global Titans 50 index.