Educational collaborative networks (ECNs), as instruments for achieving educational goals through the integration of non-governmental organisations (NGOs), have become frequent elements of public education worldwide. Despite their contribution of additional resources to the education enterprise, the roles of philanthropic foundations in ECNs are particularly controversial. Research suggests that leaders of ECNs such as policy makers, administrators, and school principals design and coordinate governance structures to guide participants' behaviour. However, the importance of governance design and coordination in ECNs for governing philanthropic roles is yet to be systematically analysed. This article centres on the relationship between the design and coordination of governance boards and role-related participation of philanthropic foundations. A mixed methods design is implemented based on secondary analysis of a German large-scale standardised survey and an in-depth case study conducted in a south German municipality. Results confirm that leaders of ECNs impact philanthropic engagement via the design and coordination of governance boards. Participation in ECNs can take on diverse roles of representing particular interests, pursuing innovation, or providing services and are explained by underlying governance-related mechanisms. Identified associations within governance boards and role-related participation of philanthropic foundations in ECNs offer valuable insights for leadership in education.