Keystone Accountability is a not-for-profit organization that helps social-change organizations understand and improve their performance by harnessing feedback, especially from the people they serve. Keystone has developed a method called Constituent Voice™, a rigorous feedback system that monitors the impact of activities from the perspective of those most affected by them. This quantifiable and comparative data is used as the basis for learning dialogues, relationship building, and course correction to improve performance. It provides real-time data that fosters more accountable relationships with constituents, early identification of problems and unintended consequences and helps publically demonstrate that the organization is an active learner. Keystone is a grantee of the first donor consortium to support feedback, the Fund for Shared Insight. Our partners include The Bill and Melinda Gates Foundation, The Ford Foundation, the UK Department for International Development, Oxfam, Save the Children, International Rescue Committee, Ikea Foundation, the European Union and USAID.