As the traditional aid landscape shifts, a wider group of governments is playing a growing role in development cooperation. But how much of their contribution is visible in public data? The second report in our Making Impact Visible series assesses the transparency of 47 providers of international development cooperation that are not part of the OECD Development Assistance Committee (DAC). In this post, Henry Lewis sets out what the research covered, the strong data foundations it identified, and the information that’s missing.