Within the framework of the Europe 2020 Strategy, the European Union is actively engaged in the recognition of social innovation. Through one of the 7 flagship initiatives of this Strategy, “Innovation Union”, it aims to promote the development of social innovation. More concretely, EU support for social innovation is highlighted in the 2014-2020 National Operational Programme (NOP) of the European Social Fund: the development of social innovation projects that create jobs and social cohesion has been identified as one of the six major challenges to be addressed and axis 3 of the SOP “to combat poverty and promote inclusion” includes a possibility of concrete support for social innovation. Within the framework of this NOP, the European Social Fund aims in particular to ‘support the engineering of projects for the development of social innovation’. The proposed transaction is entirely in this context. The European Social Fund will contribute to the development of the following three actions: Accelerating the development of social innovation Accompanying the change of scale and the duplication of social innovations Develop social impact assessment Accelerating the development of social innovation requires first of all the implementation of actions allowing its recognition and ownership by all the actors who can contribute to its support and support. But this is a first step to take. In order to concretely develop employment in the territories through the implementation of socially innovative projects, two other complementary and essential aspects must be worked in parallel: On the one hand, it becomes necessary to deploy methods and tools to encourage their change of scale and in particular their duplication. On the other hand, it is a question of capitalising on methods, tools and best practices to assess the social impact of these innovations. These actions will mobilise a large number of Lavise partners who can contribute through their complementary expertise to these different actions, such as: Networks, structures and actors of the SSE (Mouves, LIAE Networks, CGSCOP, CNCRES, Provident organisations,) Stakeholders in the support and financing of socially innovative projects (France Active, MACIF Foundation, networks of business creation, BPI France. Various experts in social innovation, scale change, social impact (researchers, incubators, academics)