- A Better Place Foundation
- ABG Investment Group
- Ariel Capital Management
- Ashoka: Innovators for the Public
- Cisco Systems Foundation
- Community Foundation of Greater Memphis
- Flagg Creek Foundation
- Gap Foundation
- Genentech
- John and Marcia Goldman Foundation
- Hillman Foundation
- Household America
- James Irvine Foundation
- J.P. Morgan Chase Foundation
- James S. Riepe Family Foundation
- John D. and Alexandra C. Nichols Family Foundation
- Jones Family Foundation
- Koret Foundation
- L'Aiglon Foundation
- Louis V. Gerstner Jr. Foundation
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- MacLean Foundation
- MacLean-Fogg & Co.
- Manhattan Institute
- McReynolds Foundation
- Meyers Charitable Family Fund
- Monterey Fund
- The Overbrook Foundation
- Phoebe Snow Foundation
- Pisces Foundation
- Ruddie Memorial Youth Foundation
- Spalding Family Foundation
- The Swig Foundation
- Talbott Lea Simonds Foundation
- Texas Pacific Group
- Tiger Technology Management
- Union Bank of California
- Walmart Foundation
- Walter and Elise Haas Fund
- Wells Fargo Bank
- Wendell Family Foundation
- William R. Kenan, Jr. Charitable Trust
- Yahoo Employee Foundation
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updated December 2006

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