E.ON Avacon AG provides a comprehensive range of electricity, gas, heat, and water services to about 1.4 million customers. The company's service territory spans just on 28,100 square kilometers in central and eastern Lower Saxony and in northern and central Saxony-Anhalt. Over 40 municipal and community utilities source their energy from Avacon.

E.ON Energie AG has a 66.5% shareholding in Avacon.