| Richard King Mellon Foundation | 17 | $51.1m |
| DIETRICH FOUNDATION | 2 | $45.0m |
| Mastercard Foundation | 3 | $33.6m |
| Heinz Endowments | 20 | $17.5m |
| HILLMAN FAMILY FOUNDATIONS | 11 | $15.1m |
| ALLEGHENY FOUNDATION | 2 | $9.2m |
| POSNER FOUNDATION OF PITTSBURGH | 2 | $6.5m |
| SCHWAB CHARITABLE FUND | 2 | $6.4m |
| Bill & Melinda Gates Foundation | 6 | $5.0m |
| NATIONAL PHILANTHROPIC TRUST | 2 | $3.1m |
| Alfred P. Sloan Foundation | 17 | $2.7m |
| VANGUARD CHARITABLE ENDOWMENT PROGRAM | 2 | $2.5m |
| Simons Foundation | 21 | $2.3m |
| THE TEPPER FOUNDATION | 2 | $2.0m |
| Silicon Valley Community Foundation | 3 | $1.8m |
| David and Lucile Packard Foundation | 6 | $1.4m |
| THE ERIC AND WENDY SCHMIDT FUND FOR STRATEGIC INNOVATION | 1 | $1.2m |
| Pittsburgh Foundation | 3 | $1.1m |
| Knight Foundation | 3 | $1.1m |
| The Kresge Foundation | 2 | $1.1m |
| PHILIPPE AND ANA LAFFONT FAMILY FOUNDATION C/O COATUE MANAGEMENT | 1 | $1.0m |
| ADDITIONAL VENTURES FOUNDATION | 2 | $781.7k |
| CHARITIES AID FOUNDATION AMERICA | 3 | $778.8k |
| Walton Family Foundation | 2 | $747.9k |
| JAMES S MCDONNELL FOUNDATION | 3 | $741.5k |
| Good Ventures Foundation | 2 | $673.2k |
| William and Flora Hewlett Foundation | 2 | $650.0k |
| THE GRABLE FOUNDATION | 12 | $629.2k |
| CLAUDE WORTHINGTON BENEDUM FOUNDATION | 5 | $480.0k |
| Gordon and Betty Moore Foundation | 2 | $450.0k |
| THE GOLDMAN SACHS CHARITABLE GIFT FUND | 2 | $411.8k |
| Andrew W Mellon Foundation | 1 | $270.0k |
| THE ALLEN INSTITUTE FOR ARTIFICIAL INTELLIGENCE | 1 | $250.0k |
| Rockefeller Foundation | 3 | $175.2k |
| TIDES FOUNDATION | 2 | $175.0k |
| New York Community Trust | 2 | $151.0k |
| GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC | 1 | $121.5k |
| The Commonwealth Fund | 2 | $116.8k |
| Carnegie Corporation of New York | 1 | $111.4k |
| JEWISH COMMUNAL FUND | 2 | $105.2k |
| SEQUOIA CLIMATE FOUNDATION | 1 | $100.0k |
| AMERICAN ENDOWMENT FOUNDATION | 3 | $66.8k |
| Kauffman Foundation | 1 | $66.5k |
| RAYMOND JAMES CHARITABLE ENDOWMENT FUND | 2 | $64.0k |
| Research Corporation dba Research Corporation for Science Advancement | 1 | $55.0k |
| THE GREATER CINCINNATI FOUNDATION | 2 | $54.8k |
| HELEN FRANKENTHALER FOUNDATION INC | 1 | $50.0k |
| THE US CHARITABLE GIFT TRUST | 1 | $47.3k |
| EAST BAY COMMUNITY FOUNDATION | 2 | $45.0k |
| Tulsa Community Foundation | 2 | $41.3k |