Champion Supporter (above $200,000)
- Bill & Melinda Gates Foundation
- Carnegie Corporation of New York
- Ewing Marion Kauffman Foundation
- Laura and John Arnold Foundation
- Searle Freedom Trust
- The Edythe and Eli Broad Foundation
- The Joyce Foundation
- The Teaching Commission
Lead Investor ($75,000-$200,000)
- Benwood Foundation
- Gleason Family Foundation
- Houston Endowment
- Hyde Family Foundations
- James M. Cox Foundation
- Michael & Susan Dell Foundation
- The Lynde & Harry Bradley Foundation
- Walton Family Foundation
- William Penn Foundation
- Anonymous
- Anonymous
- Anonymous
- Anonymous
Stakeholder ($25,000-$74,999)
- Chamberlin Family Foundation
- Cleveland Foundation
- George Kaiser Family Foundation
- MinnCAN
- Morton K. and Jane Blaustein Foundation
- Polk Bros Foundation
- Rockwell Collins Charitable Corporation
- Sid W. Richardson Foundation
- The Anschutz Foundation
- The Bodman Foundation
- The Bower Foundation
- The George Gund Foundation
- The Heinz Endowments
- The Lloyd A. Fry Foundation
- The Lynch Foundation
- William E. Simon Foundation
- Anonymous
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Partner (under $25,000)
- B&L Foundation
- Barksdale Reading Institute
- Barr Foundation
- Donnell-Kay Foundation
- Finnegan Family Foundation
- Foundation for the Mid South
- Goldsmith Family Foundation
- Irene E. and George A. Davis Foundation
- J.A. and Kathryn Albertson Foundation
- Jacob and Hilda Blaustein Foundation
- Longfield Family Foundation
- Osa Foundation
- Phil Hardin Foundation
- Rodel Charitable Foundation of Arizona
- Rodel Foundation of Delaware
- Samson Investment Company
- The Aaron Straus and Lillie Straus Foundation
- The Abell Foundation
- The Boston Foundation
- The Harold Whitworth Pierce Charitable Trust
- The Longwood Foundation
- Trefler Foundation
- Tulsa Metro Chamber
- Walker Foundation
- Williams Company
- Anonymous
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