Institutional Members:
- The Annie E. Casey Foundation
- Arcus Foundation
- Bank of America Charitable Foundation
- Barr Foundation
- The Bill and Melinda Gates Foundation
- Blue Shield of California Foundation
- Bush Foundation
- The Boston Foundation
- California Community Foundation
- California HealthCare Foundation
- The California Endowment
- Conrad Hilton Foundation
- The Dwight Stuart Youth Fund
- Empire Health Foundation
- The Evelyn and Walter Haas, Jr. Fund
- First 5 LA
- Ford Foundation
- Foundation for Child Development
- GAPA Foundation
- Grantmakers for Effective Organization
- Harry and Masie Masto Foundation
- Headwaters Foundation for Justice
- Heising-Simons Foundation
- The Hyams Foundation
- The James Irvine Foundation
- Kaiser Permanente Foundation
- Korean American Community Foundation
- Korean American Community Foundation – San Francisco
- The Kresge Foundation
- Levi Strauss Foundation
- The Libra Foundation
- The Lloyd A. Fry Foundation
- Lumina Foundation for Education
- MacArthur Foundation
- Marguerite Casey Foundation
- Marin Community Foundation
- The McKnight Foundation
- Medtronic Foundation
- Mertz Gilmore Foundation
- Eugene and Agnes E. Meyer Foundation
- The Minneapolis Foundation
- Mondelēz International
- North Star Fund
- Northwest Area Foundation
- Okura Mental Health Leadership Foundation
- Ong Family Foundation
- Pacific Foundation Services
- The Philadelphia Foundation
- Robert Wood Johnson Foundation
- Rockefeller Philanthropy Advisors
- Rosenberg Foundation
- San Francisco Foundation
- S. D. Bechtel, Jr. Foundation
- Sheng-Yen Lu Foundation
- Southern California Grantmakers
- Tarsadia Foundation
- Tides
- United Way of King County
- The Wallace Foundation
- Weingart Foundation
- The William and Flora Hewlett Foundation
- William T. Grant Foundation
- William Penn Foundation
- W.K. Kellogg Foundation