| Bill & Melinda Gates Foundation | 3 | $4.7m |
| Walton Family Foundation | 4 | $3.5m |
| Wallace Foundation | 2 | $3.5m |
| The Kresge Foundation | 3 | $3.0m |
| ARIZONA COMMUNITY FOUNDATION | 1 | $2.0m |
| THE SCHMIDT FAMILY FOUNDATION | 1 | $1.7m |
| Carnegie Corporation of New York | 3 | $1.6m |
| NATIONAL PHILANTHROPIC TRUST | 2 | $1.6m |
| Doris Duke Foundation | 3 | $1.4m |
| William and Flora Hewlett Foundation | 1 | $1.2m |
| SCHWAB CHARITABLE FUND | 2 | $1.2m |
| John D and Catherine T MacArthur Foundation | 2 | $1.0m |
| POSNER FOUNDATION OF PITTSBURGH | 2 | $1.0m |
| Alfred P. Sloan Foundation | 3 | $975.0k |
| CATENA FOUNDATION | 2 | $950.0k |
| VANGUARD CHARITABLE ENDOWMENT PROGRAM | 2 | $928.1k |
| Annie E. Casey Foundation | 3 | $810.0k |
| Kauffman Foundation | 3 | $785.0k |
| Joyce Foundation | 3 | $650.0k |
| John Templeton Foundation | 2 | $624.2k |
| PUBLIC WELFARE FOUNDATION INC | 2 | $550.0k |
| Charles Stewart Mott Foundation | 3 | $525.0k |
| Rockefeller Foundation | 3 | $500.9k |
| Pew Charitable Trusts | 1 | $500.0k |
| THE MELVILLE CHARITABLE TRUST INC | 2 | $500.0k |
| J. Paul Getty Trust | 1 | $500.0k |
| THE SKOLL FOUNDATION | 1 | $450.0k |
| Silicon Valley Community Foundation | 2 | $388.6k |
| WILLIAM T GRANT FOUNDATION INC | 2 | $300.0k |
| GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC | 1 | $276.9k |
| THE LEMELSON FOUNDATION | 1 | $250.0k |
| AMERICAN ENDOWMENT FOUNDATION | 3 | $217.3k |
| JEWISH COMMUNAL FUND | 2 | $213.0k |
| ORANGE COUNTY COMMUNITY FOUNDATION | 2 | $210.0k |
| DONALD A PELS CHARITABLE TRUST UTD 8/18/92 C/O PKF O'CONNOR DAVIES | 2 | $200.0k |
| MANITOU FUND | 2 | $200.0k |
| VITAL PROJECTS FUND INC | 1 | $125.0k |
| ST LOUIS COMMUNITY FOUNDATION INC | 2 | $90.0k |
| The Oregon Community Foundation | 2 | $63.4k |
| The George Gund Foundation | 1 | $62.5k |
| The Spencer Foundation | 1 | $50.0k |
| CALIFORNIA COMMUNITY FOUNDATION | 2 | $46.6k |
| THE COMMUNITY FOUNDATION FOR GREATER ATLANTA INC | 1 | $40.0k |
| SEATTLE FOUNDATION | 6 | $38.0k |
| JEWISH COMMUNITY FEDERATION OF SAN FRANCISCO THE PENINSULA MARIN & SONOMA | 2 | $37.5k |
| SANTA BARBARA FOUNDATION | 1 | $37.0k |
| THE BESSEMER GIVING FUND C/O BESSEMER TRUST COMPANY TRUSTEE | 2 | $34.7k |
| New York Community Trust | 1 | $31.3k |
| KELSON FOUNDATION | 2 | $30.0k |
| RAYMOND JAMES CHARITABLE ENDOWMENT FUND | 1 | $28.6k |