Central questions in entrepreneurship research concern the characteristics of the venture creation process and the factors determining the faith of a start-up project or the success of a new venture. Among other factors discussed social capital seems to play a pivotal role. Social capital is often tested for in entrepreneurship studies; however especially our knowledge about the team-social capital relationship is sparse. Scholars suggest that a start-up team compared to a solo-entrepreneur can gain more easily access to resources through the social network of its members (Davidsson & Honig, 2003). On the other hand a start-up team can perform more activities in the start-up process on their own, because a team combines different skills from its members (Gartner, 1985). In this paper investigate to what extent teams and solo-entrepreneurs rely on social capital during the venture creation process. We are also interested in the effects of social capital on later venture performance.