- Aaron Straus and Lillie Straus Foundation
- Abell Foundation
- Anonymous
- Anonymous
- B & L Foundation
- Barksdale Reading Institute
- Barr Foundation
- Benwood Foundation
- Bill and Melinda Gates Foundation
- Boston Foundation
- Bower Foundation
- Brookhill Foundation
- Carnegie Corporation of New York
- Chamberlin Family Foundation
- Cleveland Foundation
- Daniels Fund
- Doris and Donald Fisher Fund
- Edythe and Eli Broad Foundation
- Ewing Marion Kauffman Foundation
- Finnegan Family Foundation
- Foundation for the MidSouth
- Garner Foundation
- George Gund Foundation
- George Kaiser Family Foundation
- Gleason Family Foundation
- Goldsmith Family Foundation
- Harold Whitworth Pierce Charitable Trust
- Houston Endowment
- Hyde Family Foundation
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- Irene E. and George A. Davis Foundation
- Jacob and Hilda Blaustein Foundation
- Joyce Foundation
- Laura and John Arnold Foundation
- Longfield Family Foundation
- Longwood Foundation, Inc.
- Lynch Foundation
- Lynde and Harry Bradley Foundation
- Massachusetts Business Alliance for Education
- Michael & Susan Dell Foundation
- Morton K. and Jane Blaustein Foundation
- Osa Foundation
- Phil Hardin Foundation
- Polk Bros Foundation
- Rockwell Collins, Inc.
- Rodel Charitable Foundation of Arizona
- Rodel Foundation of Delaware
- Samson Investment Company
- Searle Freedom Trust
- Sid W. Richardson Foundation
- Steans Family Foundation
- The Heinz Endowments
- The Teaching Commission
- Tulsa Metro Chamber
- Walker Foundation
- Wasserman Foundation
- William E. Simon Foundation
- Williams Company
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