Marcus Börner

youmix GmbH provides platform working as an intermediary among artists, music business and consumers. It operates a social networking web site for musicians and fans. The company's site allows site visitors to listen to music, watch videos uploaded by bands, and add songs to their personal play list. The company is headquartered in Berlin, Germany

OptioPay GmbH operates an online payment platform. Its solutions include human resource, e-commerce, banking, and insurance solutions. The company was founded by Marcus Börner, Oliver Oster, Oliver Neumann, Mike Rötgers, and Moritz Claussen and is headquartered in Berlin, Germany.

reBuy reCommerce GmbH develops and operates an online electronics shopping platform. It specializes in the management of a web-based portal offering new and used electronics and entertainment products. This allows users to search, buy, and sell software, videos, game consoles, mobile phones, tablets, and laptops. The firm also provides account management, consulting, and technical support services. The company was founded by Marcus Börner, Daniel Freudenberger, Tim Fronzek, Lawrence Leuschner, Olivier Mackovic in 2004 and is headquartered in Berlin, Germany.