The first chapter provides the context, and describes why development co-operation providers are engaging the private sector, and what issues they address with their support. The second chapter maps development partner approaches - it discusses key concepts and adopts a framework to understand policy objectives, it presents examples of activities, and finally, it highlights the roles of different development co-operation actors. The third chapter presents an analysis of climate-related development finance flows supporting private sector engagement, highlighting the geographies of private sector engagement according to sector, provider, income of the recipients and aim (mitigation vs. adaptation).