Heike Heim

Dortmunder Stadtwerke AG provides urban development and transportation services for the city of Dortmund. The firm, through its subsidiaries, also provides energy and telecommunication services. The company was founded on June 18, 1857 and is headquartered in Dortmund, Germany.

Stadtwerke Schwerte GmbH provides gas and electricity distribution services. The company is headquartered in Schwerte, Germany.

Energieversorgung Offenbach AG provides energy supply and service packages that encompass wind power, biomass and district heating networks. They are also engaged in energy business investments and renewable energy development. The company was founded in 1847 and is based in Offenbach, Germany.

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.

rku.it GmbH provides information technology services. These include consulting, IT management, managed IT services, business process outsourcing, service and support, sales and products, network and infrastructure, enterprise resource planning, billing, market communication and enterprise information management. The company was founded in 1961 and is headquartered in Herne, 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.

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.