Dietmar Griebler

Wien Holding GmbH operates as a holding company with interests fin real estate and logistics management. The firm’s services include real estate management, cultural and event management, logistics and mobility, environmental management and media and service. The company was founded in 1974 and is headquartered in Vienna, Austria.

Wiener Stadtwerke GmbH engages in the provision of municipal infrastructure services such as energy supply and public transport system. It also focuses on energy, mobility, garage, burial, and cemetery services. The company was founded on January 1, 1949 and is headquartered Vienna, Austria.

Wien Energie GmbH engages in the production and supply of electricity and natural gas. Its business activities include the construction and development of solar-, wind-, and hydropower plants, biomass and waste recycling facilities, and cogeneration systems. The company is headquartered in Vienna, Austria.