Frank Baumgärtner

Clean Energy Sourcing AG engages in the supply of electricity to the commercial, industrial, and household sectors. It specializes in the direct marketing of electricity from renewable energy facilities. The firm also provides energy industry services. The company was founded in 2008 and is headquartered in Leipzig, Germany.

BSW-SACI GmbH is a management consultancy company that focuses in new business segments and business models, customer service and processes, and sales practices. The was founded in 1990 and is headquartered in Frankfurt, Germany.

TeraJoules Energy GmbH provides renewable energy generation, distribution and management services. The firm offers comprehensive service in the renewable energy sector, thus enabling a flexible and secure management of renewable energy and covers all service areas along the energy industry value chain, from generation and load management and trading to optimize consumption. The company is headquartered in Frankfurt, Germany.