Petra Kamolla

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.

Dortmund Stadtwerke Holding GmbH is an investment services company based in Dortmund, Germany. The German company provides investment services. The CEO of the private company is Guntram Pehlke.

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.

Siegfried Jacob Metallwerke GmbH & Co. KG provides metal recycling and trading services. The private company is based in Ennepetal, DE. and has subsidiaries in United Kingdom and Germany. The CEOs are Uwe Dierkes, Eckhard Jacob, Henning Reuter. The German company was founded in 1953 by Siegfried Jacobs.