The world is beset by multiple crises that strain our societies. Many people want to do their part to limit suffering, promote flourishing, and minimize current and future risks. These aspiring change agents often struggle to help create a better future for people and the planet. This report offers a way forward, by defining the concept of “polycapital” and explaining why harnessing one’s polycapital is a critical, but underutilized, strategy for positive impact.