| THE HEISING-SIMONS FOUNDATION | 12 | $2.8m |
| W.M. Keck Foundation | 5 | $2.6m |
| The Coca-Cola Foundation Inc | 3 | $2.1m |
| THE ZEGAR FAMILY FOUNDATION | 2 | $1.9m |
| Simons Foundation | 10 | $1.5m |
| ARNOLD AND MABEL BECKMAN FOUNDATION | 4 | $1.4m |
| NATIONAL PHILANTHROPIC TRUST | 2 | $1.2m |
| THE SCHMIDT FAMILY FOUNDATION | 3 | $1.1m |
| SANTA BARBARA FOUNDATION | 2 | $994.1k |
| Alfred P. Sloan Foundation | 7 | $611.7k |
| GRANTHAM FOUNDATION FOR THE PROTECTION OF THE ENVIRONMENT | 1 | $600.0k |
| Silicon Valley Community Foundation | 3 | $520.4k |
| SCHWAB CHARITABLE FUND | 2 | $414.4k |
| VANGUARD CHARITABLE ENDOWMENT PROGRAM | 2 | $367.8k |
| Carnegie Corporation of New York | 3 | $347.3k |
| William Randolph Hearst Foundation | 1 | $250.0k |
| The Kresge Foundation | 1 | $176.1k |
| THE SAN DIEGO FOUNDATION | 2 | $127.8k |
| McKnight Foundation | 4 | $113.0k |
| Research Corporation dba Research Corporation for Science Advancement | 2 | $110.0k |
| AMATEUR RADIO DIGITAL COMMUNICATIONS | 1 | $109.6k |
| HILLMAN FAMILY FOUNDATIONS | 2 | $100.0k |
| MANITOU FUND | 1 | $100.0k |
| Pew Charitable Trusts | 2 | $72.9k |
| Michael & Susan Dell Foundation | 2 | $59.0k |
| GS DONOR ADVISED PHILANTHROPY FUND FOR WEALTH MANAGEMENT INC | 1 | $55.0k |
| THE FREEMAN FOUNDATION | 1 | $46.0k |
| RUSSELL SAGE FOUNDATION | 2 | $40.0k |
| ORANGE COUNTY COMMUNITY FOUNDATION | 1 | $35.0k |
| CALIFORNIA COMMUNITY FOUNDATION | 2 | $35.0k |
| THE SAN FRANCISCO FOUNDATION | 2 | $30.0k |
| The McConnell Foundation | 1 | $29.6k |
| PRICE PHILANTHROPIES FOUNDATION | 2 | $24.5k |
| John Templeton Foundation | 1 | $23.5k |
| NATL CHRISTIAN CHARITABLE FDN INC | 1 | $20.0k |
| Tulsa Community Foundation | 2 | $18.8k |
| GREATER HOUSTON COMMUNITY FOUNDATION | 1 | $10.0k |
| THE GOLDMAN SACHS CHARITABLE GIFT FUND | 1 | $10.0k |
| AMERICAN ENDOWMENT FOUNDATION | 1 | $6.0k |
| CHARITIES AID FOUNDATION AMERICA | 1 | $5.4k |
| AMERICAN GIFT FUND | 1 | $5.2k |
| Enterprise Holdings Foundation | 1 | $5.0k |
| THE PFIZER FOUNDATION INC | 2 | $1.3k |
| VANCOUVER FOUNDATION | 1 | $1.0k |