Initiatives such as the Green Growth Platform (GGP) aim to positively influence political and economic decision-making. They can play an important role in shaping the ambition and structure of policy initiatives. In the absence of directly observable influences, it is often difficult to measure the actual impact of such initiatives. On behalf of the German Federal Ministry for Environment, Nature Conservation and Nuclear SafetyBMU, Ecologic Institute evaluated the Green Growth Platform through a survey of members, event participants and key stakeholders.