Sven Ahrens

SilverTours GmbH develops and operates an online portal for car rental price comparison. The firm specializes in the management of a web-based platform that provides users with information on car rental services and businesses, rental costs, vehicle insurance, complementary services, and miscellaneous fees. It also offers instant car booking services. The company was founded by Christian Mahnke in 2003 and is headquartered in Freiburg, Germany.

COMVEL GmbH engages in the development and operation of web-based tour and travel management portals. It offers booking of package tours, luxury and wellness hotels, cruises, and skiing vacations. The company was founded in 2004 and is headquartered in Munich, Germany.

tropo GmbH engages in provision of tour operating services. It offers travel packages and last minute travel services. The company was founded by Frank Riecke in 2011 and is headquartered in Leipzig, Germany.