Before joining the Rockefeller Brothers Fund as President, Stephen Heintz held top leadership positions in both the nonprofit and public sectors. He was founding president of Dēmos, a public policy research and advocacy organization working to enhance American democracy and promote broadly shared prosperity, and he served as executive vice president and chief operating officer of the EastWest Institute, where he worked on issues of economic reform, civil society development, and international security. Under Heintz’s leadership, the Rockefeller Brothers Fund has made climate change the primary focus of its work in the US, China, and elsewhere around the globe. Heintz currently serves on the boards of the EastWest Institute, the Rockefeller Archive Center, and The American Prospect. He is a member of the Council on Foreign Relations and a fellow of the American Academy of Arts and Sciences. The Nonprofit Times has named him one of the 50 most influential leaders of the nonprofit sector.