As You Sow Foundation
Broad Reach Fund
Builders Initiative
Bullitt Foundation
California Endowment
California Wellness Foundation
Canary Fund
Cedar Tree Foundation
Central New York Community Foundation
Ceres Trust
Chicago Frontlines Funding Initiative
Civis Consulting, Inc.
Claneil Foundation
Community Foundation for Greater Buffalo
Cornell Douglas Foundation
CS Fund
Energy Foundation
Fine Fund
Forsythia Foundation
Foundation for Pennsylvania Watersheds
Franciscan Sisters of Mary
Fred A. and Barbara M. Erb Family Foundation
GRACE Communications Foundation
Green Media Group
Heinz Endowments
High Tide Foundation
Hull Family Foundation
Jacob and Hilda Blaustein Foundation
Jenifer Altman Foundation
Jonas Philanthropies
Joyce Foundation
JPB Foundation
Keith Campbell Foundation for the Environment
Kresge Foundation
Laughing Gull
Liberty Hill Foundation
Lucy Rockefeller Waletzky, M.D - Individual Donor
Marisla Foundation
McKnight Foundation
Morris and Gwendolyn Cafritz Foundation
New England Grassroots Environment Fund
New York Community Trust
NorthLight Foundation
Park Foundation
Passport Foundation
Peter Sullivan - Individual Donor
Philanthropic + Nonprofit Consulting
Pisces Foundation
Plastic Solutions Fund
Robert Wood Johnson Foundation
Rockefeller Family Fund
Rose Foundation for Communities and the Environment
Roy and Patricia Disney Family Foundation
Singing Field Foundation
The 2030 Fund
Verna Harrison Associates
Wallace Global Fund
Water Foundation
William Penn Foundation