- David and Lucile Packard Foundation
- Edna McConnell Clark Foundation
- Evelyn & Walter Haas, Jr. Fund
- Ewing Marion Kauffman Foundation
- Federal Transit Administration
- Finance Project
- Ford Foundation
- Heinz Endowments
- James Irvine Foundation
- John D. and Catherine T. MacArthur Foundation
- John S. and James L. Knight Foundation
- Kaiser Family Foundation
- Levi Strauss Foundation
- Lilly Endowment, Inc.
- Lucile Packard Foundation for Children's Health
