Shelby Cullom Davis Foundation 

• Annenberg Foundation

• United Way of the National Capitol Area

• Morris and Gwendolyn Cafritz Foundation

• Diana Davis Spencer Foundation

• Office of the State Superintendent of Education, Washington DC

• Capital One Foundation

• Alice & Russell True Foundation

• Greater Washington Community Foundation

• NBC Universal/Comcast Foundation

• Marriott Foundation

• Marcia M. Carlucci & Frank Carlucci, III

• Citigroup Management Corp.

• Aaron and Cecile Goldman Family Foundation

• Dart Group II Foundation

• Harry and Zoe Poole Foundation

• Dimick  Foundation 

• Elno Family Foundation

• Max and Victoria Dreyfus Foundation

• Fordham Street FoundationThe Milrose Foundation 

• George Preston Marshall Foundation

• United States Tennis Association Foundation 

• Herb Block Foundation

• Fight for Children

• Children's Charities Foundation

• John Edward Fowler Memorial Foundation

• Clark Charitable Foundation

• Marshall B. Coyne Foundation

• The Wilczynski Foundation

• The Share Fund

• Verizon Foundation