1. The William and Flora Hewlett Foundation $133.73 M
2. The Energy Foundation $98.46 M
3. Robertson Foundation $52.25 M
4. McKnight Foundation $30.89 M
5. Sea Change Foundation $30.83 M
6. John D. and Catherine T. MacArthur Foundation $24.50 M
7. J P B Chapter $19.52 M
8. The David and Lucile Packard Foundation $19.43 M
9. Bloomberg Family Foundation Inc $14.17 M
10. Foundation For The Carolinas $13.86 M
11. Barr Foundation $10.62 M
12. The Joyce Foundation $8.30 M
13. Schwab Charitable $7.51 M
14. The John Merck Fund $6.16 M
15. Fidelity Charitable $5.93 M
16. Wells Fargo Foundation $5.28 M
17. Doris Duke Charitable Foundation, Inc. $5.20 M
18. Foundation to Promote Open Society $5.06 M
19. The Stanton Foundation $5.00 M
20. The Kresge Foundation $4.73 M
21. Heising-Simons Foundation $4.60 M
22. Combined Jewish Philanthropies of Boston $4.30 M
23. The Heinz Endowments $4.14 M
24. Rockefeller Brothers Fund $4.07 M
25. The Kendeda Fund $3.86 M

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