444S Foundation
Jenifer Altman Foundation
Brainerd Foundation
Bullitt Foundation
Campion Foundation
Christensen Fund
Compton Foundation
The Doris Duke Charitable Foundation
Environment Now
Ford Foundation
Garfield Foundation
Germeshausen Foundation
Richard and Rhoda Goldman Fund
Harder Foundation
Vira I. Heinz Endowment
William and Flora Hewlett Foundation
Ivey Foundation
V. Kann Rasmussen Foundation
J.M. Kaplan Fund
Henry P. Kendall Foundation
Kresge Foundation
Lazar Foundation
Lyndhurst Foundation
John D. & Catherine T. MacArthur Foundation
Marisla Foundation
John Merck Fund
Merck Family Fund
Gordon & Betty Moore Foundation
Charles Stewart Mott Foundation
Curtis & Edith Munson Foundation
Oak Foundation
David and Lucile Packard Foundation
The Park Foundation
Pew Charitable Trusts
Rockefeller Brothers Fund
Rockefeller Family Fund
Rockefeller Philanthropy Advisors
Sacharuna Foundation
Sandler Foundation
Summit Foundation
Surdna Foundation
Tides Foundation
Emily Hall Tremaine Foundation
Turner Foundation
U.S. Agency for International Development
Wallace Genetic Foundation
Wallace Global Fund
Weeden Foundation
WestWind Foundation
Wilburforce Foundation