The objective of this research was to examine the relationship of the variables training and learning, and the diversity of sources of innovation's ideas, with the social innovation of non-profit organisations (NPOs). The study was carried out in Guayas-Ecuador. It is a quantitative, cross-sectional, and non-experimental study, in which Probit regression was used. The findings indicate that the variables: training and learning, and the diversity of sources of ideas for innovation, positively affect social innovation in these organisations. The theoretical implication of the research is that it contributes to the scant empirical evidence of this relationship, especially in developing countries; it also strengthens the idea that the resource-based view of the firm can explain social innovation and that the fundamental resource in social innovation is the knowledge that these organisations acquire and increase through training and internal learning, as well as the diversity of sources of ideas for innovation that they acquire.