Social innovation can be seen as new combinations of social, economic and political capital (resources and capabilities)1. In social innovation initiatives actors with different capabilities cooperate and function as systems of innovation. The various actors (from the social, economic and/or political domain) contribute and benefit in different tangible and intangible ways. As producers and users of solutions for societal problems they co-create value for society. The paper aims for insights in the economic outcomes of social innovation. We argue that social innovation can be seen as an investment, rather than a cost. For 55 social innovation initiatives across Europe we identify economic outcomes for the various actors, and the sustainabil...