In close partnership with decisionmakers -- the policymakers, practitioners, investors, and donors working with the poor around the world -- we design and evaluate potential solutions to global poverty problems using randomized evaluations, the most rigorous evaluation method available. We also mobilize and support these decisionmakers to use these solutions to build better programs and policies at scale. Since our founding in 2002, the results of our research have improved the lives of over 50 million people around the world.