The European Research Area is targeting efforts in research and innovation on thecurrent challenges faced by society. These challenges are complex, multidimensional and require the engagement of different actors alongside researchers, particularly relating to integrated and sustainable urban development.In an effort to bridge the gap between the scientific community and society, SEiSMiC (Societal Engagement in Science, Mutual learning in Cities) aims to create a structured dialogue and mutual learning with citizens and urban actors by setting up National Networks (and expanding on existing networks where possible) in 10 countries across Europe. These networks will specifically include urban stakeholders from civil society, business, NGOs, youth, media, musea but also from research and policy). On the European level, an Advisory Group (with EU-wide urban stakeholder organisations) and an Observer Group (with JPI Urban Europe and European Parliament representatives) will also be established.The objectives of SEiSMiC as Mobilisation and Mutual Learning Action Plan are threefold. Firstly it aims to mobilise a wide range of urban stakeholders at the local level with a view to, secondly, feed the experiences and challenges of social innovation at local level into the European urban research agenda and to enhance the social dimension of the strategic research agenda of JPI Urban Europe. Thirdly, it will diffuse the initiatives, projects and results of JPI Urban Europe (and other European programmes) to all urban actors at local, regional, national and European level.It is expected that by means of this multi-level, multi-actor, integrated and inclusive approach, research activities can be increased, new concepts and solutions will be more targeted and accepted, social innovation with the social context is strengthened, and commonalities and differences in European needs, awareness and solutions in the urban field can be identified.