Heike Heim

KSBG Kommunale Beteiligungsgesellschaft GmbH & Co. KG operates as a consortium of six municipal utilities that serve the Rhine-Ruhr district. It engages in the generation and supply of energy, as well as provides network energy services to municipalities. The company was founded on December 7, 2010 and is headquartered in Essen, Germany.

Gasversorgung Offenbach GmbH provides reliable energy and personalized service from Offenbach, Germany for electricity, gas, heat, water, and more. The company is based in Offenbach am Main, Germany. The German company offers energy-saving tips to help customers reduce their energy costs in the kitchen and save money on electricity and water. The company ensures that their drinking water meets all legal requirements and standards. Gasversorgung Offenbach is a subsidiary of EVO, which is ultimately controlled by the City of Mannheim. The CEOs of the company are Ulrich Bruns, Cordelia Müller.

Dortmunder Energie- und Wasserversorgung GmbH provides energy services including electricity, gas, heat, water, and electric mobility in Dortmund, DE. The company also has a special BVB Stromtarif for Borussia Dortmund fans. The German company offers attractive deals for its customers, including discounts, tickets for exclusive events, and more. The CEOs are Heike Heim and Matthias Klein-Lassek. The company was founded in 1995 and is ultimately controlled by the City of Dortmund.