Matthias Siedler

carpooling.com GmbH develops and operates internet portals for car pooling. It operates Carpooling.com, which offers ridesharing opportunities that are accessed by computers, mobile phones, and social networks. The company was founded by Michael Reinicke, Matthias Siedler, and Stefan Weber in 2001 and is headquartered in Munich, Germany.

AUDI AG engages in the development, production and sale of cars. It operates through the Automotive, and Motorcycles segments. The Automotive segment encompasses the development, production, assembly and distribution of vehicles of the Audi and Lamborghini brands, and the distribution of vehicles of other Volkswagen Group brands as well as the accompanying accessories and spare parts business. The Motorcycles segment covers the development, production, assembly, and distribution of Ducati brand motorcycles, including the accessories and spare parts business. The company was founded by August Horch on July 16, 1909 and is headquartered in Ingolstadt, Germany.