| Gordon and Betty Moore Foundation | 15 | $6.5m |
| Arnold Ventures (Laura and John Arnold Foundation) | 20 | $5.7m |
| American Heart Association Inc | 3 | $5.4m |
| The Childrens Hospital Of Philadelphia | 3 | $4.8m |
| Bill & Melinda Gates Foundation | 9 | $3.8m |
| SCHWAB CHARITABLE FUND | 2 | $2.5m |
| David and Lucile Packard Foundation | 5 | $1.4m |
| GRANTHAM FOUNDATION FOR THE PROTECTION OF THE ENVIRONMENT | 1 | $1.3m |
| Howard Hughes Medical Institute | 6 | $1.0m |
| Pew Charitable Trusts | 6 | $869.8k |
| ADDITIONAL VENTURES FOUNDATION | 4 | $841.4k |
| William and Flora Hewlett Foundation | 6 | $833.9k |
| EDWARD P EVANS FOUNDATION | 2 | $681.3k |
| WILLIAM T GRANT FOUNDATION INC | 4 | $637.0k |
| Margaret A. Cargill Foundation | 3 | $615.2k |
| Wallace Foundation | 3 | $521.8k |
| Silicon Valley Community Foundation | 3 | $499.4k |
| THE HEISING-SIMONS FOUNDATION | 1 | $450.0k |
| THE NATHAN CUMMINGS FOUNDATION INC | 2 | $450.0k |
| Breakthrough T1D Canada/Percée DT1 Canada | 2 | $403.3k |
| MORTENSON FAMILY FOUNDATION | 2 | $400.0k |
| Annie E. Casey Foundation | 5 | $395.0k |
| Tulsa Community Foundation | 5 | $274.3k |
| ZOMA FOUNDATION INC | 1 | $240.0k |
| THE DENVER FOUNDATION | 3 | $208.6k |
| Susan Thompson Buffett Foundation | 1 | $156.7k |
| Rose Community Foundation | 1 | $121.2k |
| Walton Family Foundation | 2 | $117.5k |
| THE WILLIAM H DONNER FOUNDATION INC | 2 | $110.0k |
| The Commonwealth Fund | 1 | $107.0k |
| MARGUERITE CASEY FOUNDATION | 1 | $50.0k |
| COLUMBUS FOUNDATION | 2 | $40.0k |
| John Templeton Foundation | 1 | $23.5k |
| The Spencer Foundation | 1 | $15.0k |
| RAINWATER CHARITABLE FOUNDATION | 1 | $10.0k |
| ROCKEFELLER PHILANTHROPY ADVISORS INC | 1 | $10.0k |
| Tides Center | 1 | $10.0k |
| COLORADO GIVES FOUNDATION | 1 | $9.2k |
| THE GOLDMAN SACHS CHARITABLE GIFT FUND | 1 | $7.5k |