Claudia Daniela Wohlfahrtstätter

Elektrizitätswerk Jona-Rapperswil AG engages in the supply of energy. It offers EWJR Oekopower, EWJR SolarCITYpower, and EWJR Basic Power. The company was founded in 1902 and is headquartered in Jona, Switzerland.

WWZ AG operates as a holding company, which engages in the supply and distribution of water, electricity, natural gas, as well as district heating. The firm also operates hydroelectric and photovoltaic power plants. It offers telecommunications products and services such as Internet, television, as well as telephone connections via fiber optic cable network. The company was founded in 1892 and is headquartered in Zug, Switzerland.

Part of EnBW Energie Baden Württemberg AG, Energiedienst AG is a German Swiss company listed on the Zurich stock exchange. Founded in 1998, the company is based in Rheinfelden, Germany. Energiedienst is committed to economic, ecological, and social responsibility as stated in their sustainability declaration. The company specializes in providing tailored solutions for complex energy issues faced by both individuals and cities.

SN Energie AG engages in the generation, transmission, trading, and supply of electricity. It also offers renewable energy and hydropower. The company was founded in 1929 and is headquartered in St. Gallen, Switzerland.