1. Gordon and Betty Moore Foundation $339.70 M
2. The David and Lucile Packard Foundation $138.11 M
3. Oak Foundation $79.38 M
4. Walton Family Foundation $53.15 M
5. The Pew Charitable Trusts $52.79 M
6. The Marisla Foundation $40.75 M
7. Bloomberg Family Foundation Inc $37.77 M
8. Waitt Foundation $31.26 M
9. Oceans 5 $23.02 M
10. Annenberg Foundation $22.61 M
11. Nationale Postcode Loterij $19.79 M
12. The Rockefeller Foundation $19.09 M
13. The Keith Campbell Foundation for the Environment, Inc. $18.12 M
14. Arcadia Fund $16.05 M
15. Margaret A. Cargill Foundation $13.54 M
16. The William and Flora Hewlett Foundation $12.80 M
17. The Paul G. Allen Family Foundation $12.57 M
18. John D. and Catherine T. MacArthur Foundation $11.24 M
19. Leonardo DiCaprio Foundation $11.04 M
20. The Leona M. and Harry B. Helmsley Charitable Trust $10.34 M
21. National Fish and Wildlife Foundation $10.08 M
22. The Oak Foundation U.S.A. $9.85 M
23. Simons Foundation $8.19 M
24. The Skoll Foundation $8.05 M
25. The Lenfest Foundation, Inc. $7.75 M

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