We know that social action by volunteers and the wider voluntary and community sector has made a life changing difference to Londoners. But we have not had the kind of cross sector vision and strategy to join up this amazing resource. This is about to change. We have an estimated 120,000 civil society organisations and over 3 million volunteers already active in the capital. We have a new Deputy Mayor with an explicit brief on social integration and community engagement, the prospect of further devolution to and within London, and a move to make London the foremost global city for philanthropy. Notwithstanding the unknowns of Brexit and the on-going challenges to public funding, this is a remarkable opportunity that we must seize together.