There is a tremendous amount of capital moving into sustainable and impact financing today that are attempting to plug the SDG financing gap. However, too few are considering systems-level challenges to the efficacy with which “impact investments,” writ large, are made. While numerous stakeholders are pushing the sector forward and recent movements within the IMM space, these efforts often lack coordination around a larger strategy. This is largely a result, we believe, of a lack of a coherent approach to measuring impact and decision-making. Today, there remains no comprehensive systems map or study of impact investing’s impact measurement and management landscape as a cross-sectoral whole. This report aims to shine light on this by using the systems mapping and systems change methodology to research impact transparency and integrity within the global impact investment sector.