This executive summary of the “Strategic roadmap for the implementation and support of territorial RRI through Participatory Research Agenda Setting” aims at helping regional public administrations who wish to enable citizens’ and R&I stakeholder engagement actions in their local policymaking. The roadmap has been developed within the framework of TRANSFORM, an EU H2020 project, committed to transforming territorial research and innovation governance and opening up regional R&I policymaking so as to better align territorial research and innovation with citizens’ views, needs, and expectations. TRANSFORM provides regional public authorities and other interested R&I actors with inspiring examples and practical suggestions, emerging from real regional settings and experimentations, on how to implement RRI principles through sound methodologies to engage citizens and multiple stakeholders.