Ludwig Summer

Vorarlberger Kraftwerke AG specializes in energy supply and distribution. The firm also engages in electricity and natural gas trading. It provides products and services in the areas of energy efficiency, mobility, and renewable energy. The company was founded in December 1901 and is headquartered in Bregenz, Austria.

Vorarlberger Illwerke AG engages in the generation and distribution of peak load electricity as well as regulating energy for its regional and international partners. It operates power stations and energy supply plants. The company was founded in 1924 and is headquartered in Bregenz, Austria.

VEG Vorarlberger Erdgas GmbH distributes gas and is ultimately controlled by the State of Vorarlberg. The company is based in Dornbirn, Austria.

Illwerke VKW AG is an Austrian company that was founded in 1924. The private company is based in Bregenz, Austria. The company specializes in various aspects of electricity, including generation, distribution, and energy efficiency.

TransnetBW GmbH operates the electricity transmission grid in the German state of Baden-Württemberg. It controls and monitors the energy flows through the grid and perform the necessary maintenance and network planning and development activities. The firm offers electricity traders and operators of power stations and distribution grids both in Germany and abroad. The company was founded in 1998 and is headquartered in Stuttgart, Germany.