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The Center for Effective Philanthropy
The Center for High Impact Philanthropy
The Chicago Community Trust
The Clare Rose Foundation
The Cleveland Foundation
The Colorado Health Foundation
The Colorado Trust
The Columbus Foundation
The Community Foundation of Greater Des Moines
The Connecticut Community Foundation
The Crown Family Philanthropies
The Daphne Foundation
The David and Lucile Packard Foundation
The Devonshire Foundation
The District of Columbia Bar Foundation
The Duke Endowment
The Durfee Foundation
The Dyson Foundation
The Ewing Marion Kauffman Foundation
The Fannie E. Rippel Foundation
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Grantmakers for Effective Organizations
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