Abrams Foundation, Altman Foundation, Arnold Ventures, Barr Foundation, The William K. Bowes, Jr. Foundation, The Peter and Carmen Lucia Buck Foundation, Carnegie Corporation of New York, Craigslist Foundation, Davis Wright Tremaine, The Geraldine R. Dodge Foundation, Democracy Fund, The Richard H. Driehaus Foundation, Dyson Foundation, Emerson Collective, The Ford Foundation, Open Society Foundation, Goldhirsh Foundation, The Jerome L. Greene Foundation, Heising-Simons Foundation, The William and Flora Hewlett Foundation, The Joyce Foundation, Robert Wood Johnson Foundation, John S. and James L. Knight Foundation, Leon Levy Foundation, The John D. and Catherine T. MacArthur Foundation, Metabolic Studio, Park Foundation, The Lisa and John Pritzker Family Fund, Charles H. Revson Foundation, Sandler Foundation, Select Equity Foundation, Skoll Global Threats Fund, Alfred P. Sloan Foundation, Solidarity Giving

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