AIDS Healthcare Foundation

Annie E. Casey Foundation 

Barbara Lee Family Foundation 

Benton Foundation 

Bill and Melinda Gates Foundation

Bloomberg Philanthropies

California Endowment 

California HealthCare Foundation

Catalist (Hopewell Fund)  

Charles Stewart Mott Foundation 

Christopher and Dana Reeve Foundation 

Commonwealth Fund

David and Lucile Packard Foundation 

Everyday Democracy

Fannie Mae Foundation

Ford Foundation

Foreign Policy for America Foundation 

Foundation for Informed Medical Decision Making

Heinz Family Foundation 

Henry J. Kaiser Family Foundation

Horizon’s Foundation 

Human Rights Campaign Foundation 

Institute for Global Ethics 

Jack Kent Cooke Foundation

John A. Hartford Foundation

Kettering Foundation 

Knight Foundation

Markle Foundation

Melville Trust

Nathan Cummings Foundation

New America

New York State Health Foundation 

Northwest Area Foundation

NoVo Foundation

Robert Wood Johnson Foundation

Rockefeller Family Fund

Open Society Foundations

The Paul J. Aicher Foundation 

The Summit Fund of Washington, D.C. 

The Atlantic Philanthropies 

The Johnson Foundation

The Women's Foundation of California

The Women’s Foundation of Minnesota

W.K. Kellogg Foundation