Christian Purrer

Energie Steiermark AG operates as a holding company, which engages in the acquisition, management, and sale of participations in companies in the energy sector. The firm specializes in the generation and distribution of electricity, natural gas, and district heating. It also offers services such as energy consulting, construction of photovoltaic systems, energy optimization, as well as customized energy trading services. The company was founded in 1996 and is headquartered in Graz, Austria.

STEFE SK as supplies centralized heating systems. It offers installation, repairs, and maintenance of heating and cooling equipment. The company was founded on June 5, 1995 and is headquartered in Banska Bystrica, Slovakia.

VERBUND Hydro Power GmbH engages in the generation and distribution of electricity, specifically generating power using hydroelectric power plants. The company was founded in 1947 and is headquartered in Vienna, Austria.

Part of Energie Steiermark AG, Energie Steiermark Kunden GmbH is an Austrian company that provides electricity, gas, heat, and energy services. The company is based in Graz, Austria. The CEOs are Peter Trummer, Josef Landschützer. The company was founded in 2000.