The Economic and Social Research Council (ESRC) and the Department for International Development (DFID) commissioned an independent review of impact support, synthesis and cohort-building services aligned to ESRC-DFID commissioned programmes. The aim of this review was to assess the effectiveness of these services, and to draw out comparative lessons for any future similar services. The review was conducted by Leeds Beckett University (recruited via an open tendering process) and they have produced a series of findings and recommendations.  ESRC-DFID welcome these findings and recommendations. These have considerable potential value both to current service providers and in the development of future programmes.