The professional co-founder Rheingau Founders GmbH was founded by Rheingau Ventures and Mountain Partners in May 2011 and is located in Kreuzberg, Berlin’s most traditional scene district. The team with their founders Philipp Hartmann, Dr. Tobias Johann, Kai Hansen support extern founderteams of online- and mobile-startups, especially as a proffessional partner in the b2b sector. The „Rheingau-Boys“ not only provide the first and following financing rounds, they even work operational as co-founder with the Ventures, which are located in the Rheingau Campus at Berlins Oranienplatz for the first two years of their foundation phase. Following their co-founder approach, Rheingau Founders actively accompany founders at eye level – with the aim of a sustainable and trustful partnership.