1. Gordon and Betty Moore Foundation $338.56 M
2. The David and Lucile Packard Foundation $138.11 M
3. Oak Foundation $75.55 M
4. Walton Family Foundation $55.16 M
5. The Pew Charitable Trusts $52.79 M
6. The Marisla Foundation $37.75 M
7. Bloomberg Philanthropies, Inc. $37.27 M
8. Waitt Foundation $31.00 M
9. Oceans 5 $23.02 M
10. Annenberg Foundation $21.43 M
11. Nationale Postcode Loterij $19.79 M
12. The Rockefeller Foundation $19.09 M
13. The Keith Campbell Foundation for the Environment, Inc. $16.91 M
14. Arcadia $16.30 M
15. Margaret A. Cargill Foundation $14.39 M
16. The William and Flora Hewlett Foundation $13.72 M
17. The Paul G. Allen Family Foundation $13.22 M
18. John D. and Catherine T. Macarthur Foundation $11.24 M
19. National Fish and Wildlife Foundation $10.62 M
20. The Leona M. and Harry B. Helmsley Charitable Trust $10.34 M
21. Simons Foundation $8.30 M
22. The Oak Foundation U.S.A. $8.13 M
23. The Lenfest Foundation, Inc. $7.75 M
24. Cargill Foundation $7.25 M
25. Robertson Foundation $7.05 M

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