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 personal service in Offenbach, Germany. The German company offers electricity, gas, heat, water, and more. The private company also provides energy-saving tips for reducing costs in the kitchen. The company's subsidiary is ultimately controlled by the City of Mannheim. The company was founded in 1994, and the CEOs are Cordelia Müller and Ulrich Bruns.

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.