The aim of this research is to analyse the social innovation nature of the Spanish organisation Emmaus Social Foundation, based on the criteria of governance, plural economy and co-construction and co-production of public policies.. The research methodology is qualitative, and the method used is the case study. The work was carried out in four phases. The data production techniques were the documentary analysis, participant observation, field notes, informal interviews and questionnaires, based on CRISES and adapted to the context of the entity. As a general conclusion, it can be stated that Emmaus Social Foundation has potential as an agent of social innovation.These are main conclusions: a) its commitment to the sale and marketing of new innovative products, b) its recognition as a social benchmark and its links to the territory, c) its potential to work together with different public and private social agents and, d) a formal commitment to work towards more equitable power relations between men and women. However, based on the criteria established by the validatedmodel, it would need to advance in its financial autonomy and in increasing the levels of social participation. We believe, however, that in order to assess the innovative nature of Solidarity Economy organisations in the Basque Country, a contextualised instrument should be developed.