The Centre for the Understanding of Sustainable Prosperity (CUSP) is a cutting-edge research organisation core-funded by the UK’s Economic and Social Research Council and the Laudes Foundation. It takes the form of a rich international network, drawing together expert partners from academic and non-academic institutions as co-producers of the work programme. The overall research question is: What can prosperity possibly mean in a world of environmental, social and economic limits?—We work with people, policy and business to address this question, developing pragmatic steps towards a shared and lasting prosperity.