E.ON IS is the E.ON Group's IT services provider as well as a leading one-stop IT services provider to the wider energy industry. The company designs, implements, operates and maintains IT solutions for energy supply companies. Its German workforce of over 1,600 supports around 100 customers at over 30 locations throughout the country. Most of these customers are members of the E.ON Group, but the company also provides services to third-party municipalities and regional utilities. In addition, E.ON IS is continuously expanding its international business via its subsidiaries in Bulgaria, the UK, Rumania, Sweden, Slovakia, the Czech Republic, and Hungary. Its combined domestic and international operations employ a total workforce of about 2,400.