This thesis compares the Swedish and the French social entrepreneurship ecosystems. After an examination of the definitions and current legal frameworks around social enterprises in each country, their levels of social entrepreneurship activity are compared. The existing support structures providing non-financial help to social entrepreneurs (i.e. incubators, accelerators, co-working spaces and networks) are identified in Paris and in Stockholm, while perceptions from social entrepreneurs benefiting from such support were gathered through interviews. Findings show that the concept of social enterprise is more recognized and legally defined in France than in Sweden. Social entrepreneurship activity seems to be hard to quantify and compare, due to a lack of data available. Support structures appear to be well developed both in Paris and in Stockholm, while the support provided is overall quite appreciated by social entrepreneurs. Furthermore, many of them perceive their support needs as rather different from those of traditional entrepreneurs. Results tend to show that although developing in practice, social entrepreneurship remains a young academic field. Stakeholders from the field have much to gain from extended research on the topic.