The solidarity economy has been interpreted as being characterised by a political dimension: however, empirical and theoretical analysis supporting this statement is still embryonic. Drawing on a qualitative study in the city of Barcelona, this article analyses the political dimension of the solidarity economy and its transformative character with respect to neoliberalism by engaging with critical approaches related to the social movement studies. The main objectives were to investigate factors enabling the upsurge of solidarity economy organisations and how the opposition (...) of social movement participants to neoliberal rationalities impacts on the way the solidarity economy is conceived and implemented in practice. The results highlight three main dimensions in which the political dimension is reflected, and some general as well as context‐specific factors enabling the upsurge of solidarity economy organisations. Findings show how the compensative rationale that distinguishes most approaches in the field of social entrepreneurship studies is contested by the solidarity economy: its transformative character is reflected in discourses and practices that define the solidarity economy as a prefigurative socio‐economic project. (shrink)