Mario Castello

Part of Bergstadt Clausthal-Zellerfeld, Stadtwerke Clausthal Zellerfeld GmbH provides electricity, gas, and drinking water distribution services. The company is based in Clausthal-Zellerfeld, Germany. The German company was founded in 1948. The CEO is Carsten Eisfelder.

Part of E.ON SE, Harz Energie GmbH & Co. KG is a German company that provides a range of services including electricity, natural gas, heat, heating, and e-mobility. Harz Energie is based in Osterode am Harz, DE. The company offers comprehensive advice through its 12 locations. The CEOs of the company are Hjalmar Schmidt and Konrad Aichner.

Kom9 GmbH & Co. KG supplies electricity. The private company is based in Freiburg, Germany. The CEOs are Wolfgang Höffken, Axel Sträter. The German company was founded in 2009.

Eichsfelder Energie- und Wasserversorgungsgesellschaft mbH is a German company that distributes electricity. The private company is based in Duderstadt, Germany. The CEO of the company is Markus Kuhlmann.

ARTUS Bautrocknung- und Sanierungsgruppe GmbH is a nationwide partner of the construction and real estate industry in Germany. The company is based in Isernhagen, Germany and has subsidiaries in Germany. The German company's services include drying and heating as well as comprehensive damage regulation of properties after fire, water, mold, and more. The CEO of the private company is Josef Bölle.