Siegfried Heinzmann

Stadtwerke Villingen-Schwenningen GmbH provides natural gas, water and electricity distribution services. It provides products and services to residential, commercial and industrial sectors. The firm also provides energy consulting services such as energy performance certificate, heating and funding advice, remediation roadmap thermograph and energy saving tips. The company was founded in 1972 and is headquartered in Villingen, German.

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.

Thüga Holding GmbH & Co. KGaA is a private company based in Munich, Germany. Thüga Holding GmbH & Co. KGaA creates added value and is supported by the subsidiary companies of the Thüga Group. The German company offers a unique solution world. The company was founded in 2009 and the CEO is Michael Riechel.

Wüllner+Kaiser GmbH & Co. KG is a German company based in Sundern, Germany. Wüllner+Kaiser specializes in manufacturing plastic parts and offers plastic processing and injection molding services, with a focus on home articles. The private company was founded in 2000 and is led by CEOs Elmar Kaiser and Peter Wüllner.