Building on existing evidence, we apply qualitative, quantitative and mixed method approaches to answer the toughest questions. We support clients to improve effectiveness and outcomes, maximize impact of investments, and drive the intersection between strategy, policy and advocacy. Our network includes professionals in public health, impact and outcomes research, product development and introduction, performance management, monitoring,evaluation and advocacy. Based in New York, with representation in France, Portugal and India, the practice draws on experts from around the world.