| THE COMMUNITY FOUNDATION OF LOUISVILLE INC | 2 | $50.0m |
| W.M. Keck Foundation | 8 | $25.3m |
| Lucas Family Foundation | 11 | $15.4m |
| Sherman Fairchild Foundation Inc | 8 | $10.3m |
| J. Paul Getty Trust | 71 | $10.1m |
| SCHWAB CHARITABLE FUND | 2 | $8.6m |
| Annenberg Foundation | 30 | $7.9m |
| Simons Foundation | 48 | $7.8m |
| THE MARCUS FOUNDATION INC | 2 | $7.6m |
| Conrad N Hilton Foundation | 18 | $5.8m |
| THE ELI AND EDYTHE BROAD FOUNDATION | 3 | $5.2m |
| Arnold Ventures (Laura and John Arnold Foundation) | 13 | $5.2m |
| ARGYROS FAMILY FOUNDATION | 2 | $4.6m |
| Charles Koch Foundation | 3 | $4.3m |
| CALIFORNIA COMMUNITY FOUNDATION | 2 | $4.3m |
| Andrew W Mellon Foundation | 4 | $4.2m |
| THOMAS & DOROTHY LEAVEY FOUNDATION | 4 | $4.0m |
| James Irvine Foundation | 13 | $4.0m |
| KORET FOUNDATION | 7 | $3.5m |
| The Kresge Foundation | 12 | $3.5m |
| Silicon Valley Community Foundation | 3 | $3.5m |
| Bill & Melinda Gates Foundation | 11 | $3.0m |
| California Endowment | 13 | $3.0m |
| Wellcome Trust | 1 | $2.8m |
| THE AZRIELI FOUNDATION/LA FONDATION AZRIELI | 1 | $2.7m |
| John D and Catherine T MacArthur Foundation | 5 | $2.6m |
| NATIONAL PHILANTHROPIC TRUST | 2 | $2.4m |
| Lilly Endowment Inc | 4 | $2.3m |
| Gordon and Betty Moore Foundation | 6 | $2.0m |
| STEVEN & ALEXANDRA COHEN FOUNDATION INC | 2 | $2.0m |
| Alfred P. Sloan Foundation | 15 | $1.9m |
| American Heart Association Inc | 3 | $1.9m |
| William and Flora Hewlett Foundation | 12 | $1.6m |
| Susan Thompson Buffett Foundation | 5 | $1.3m |
| JEWISH COMMUNAL FUND | 2 | $1.1m |
| VANGUARD CHARITABLE ENDOWMENT PROGRAM | 2 | $1.1m |
| W. K. Kellogg Foundation | 4 | $1.1m |
| California Healthcare Foundation | 3 | $1.1m |
| GREATER HOUSTON COMMUNITY FOUNDATION | 2 | $1.1m |
| THE CALIFORNIA WELLNESS FOUNDATION | 3 | $1.0m |
| CHAN ZUCKERBERG INITIATIVE FOUNDATION | 2 | $1.0m |
| Crown Family Foundation | 1 | $1.0m |
| AMERICAN ENDOWMENT FOUNDATION | 6 | $999.4k |
| FOUNDATION TO PROMOTE OPEN SOCIETY | 4 | $880.0k |
| ORANGE COUNTY COMMUNITY FOUNDATION | 2 | $787.5k |
| Knight Foundation | 3 | $775.0k |
| COLLEGE FUTURES FOUNDATION | 3 | $775.0k |
| GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC | 1 | $756.8k |
| PETER G PETERSON FOUNDATION | 1 | $750.0k |
| Pew Charitable Trusts | 4 | $670.0k |