1. The William and Flora Hewlett Foundation $237.35 M
2. The Energy Foundation $109.94 M
3. The David and Lucile Packard Foundation $89.22 M
4. Sea Change Foundation $64.73 M
5. The Jpb Foundation $54.75 M
6. John D. and Catherine T. Macarthur Foundation $50.46 M
7. Oak Foundation $48.31 M
8. The Rockefeller Foundation $35.74 M
9. Bloomberg Family Foundation Inc $34.56 M
10. Robertson Foundation $33.50 M
11. The Mcknight Foundation $33.15 M
12. Foundation for the Carolinas $31.89 M
13. Howard G. Buffett Foundation $31.82 M
14. Oil and Natural Gas Corporation Limited Contributions Program $24.98 M
15. Heising-Simons Foundation $20.24 M
16. Bill & Melinda Gates Foundation $19.32 M
17. Alfred P. Sloan Foundation $18.04 M
18. The Joyce Foundation $13.59 M
19. Combined Jewish Philanthropies of Boston $13.48 M
20. Charles Stewart Mott Foundation $12.01 M
21. Climateworks Foundation $10.69 M
22. The National Lottery Community Fund $10.00 M
23. Rockefeller Brothers Fund, Inc. $9.00 M
24. Silicon Valley Community Foundation $8.78 M
25. Greenpeace Fund, Inc. $8.60 M

+ More- Show Less