| Largest foundations |
| Ranked by total assets, in U.S. billions, as of Dec. 31, 2009, unless otherwise noted. |
|
| 1 | Bill & Melinda Gates Foundation | $33.91 |
| 2 | Ford Foundation1 | $10.37 |
| 3 | J. Paul Getty Trust2 | $9.34 |
| 4 | The Robert Wood Johnson Foundation | $8.49 |
| 5 | The William and Flora Hewlett Foundation | $6.87 |
| 6 | W. K. Kellogg Foundation3 | $6.81 |
| 7 | The David and Lucile Packard Foundation | $5.70 |
| 8 | The John D. and Catherine T. MacArthur Foundation | $5.24 |
| 9 | Gordon and Betty Moore Foundation | $5.20 |
| 10 | Lilly Endowment Inc. | $5.15 |
| 11 | The Andrew W. Mellon Foundation | $5.05 |
| 12 | Tulsa Community Foundation4 | $3.80 |
| 13 | The Rockefeller Foundation | $3.32 |
| 14 | The Kresge Foundation | $3.13 |
| 15 | The California Endowment5 | $3.08 |
| 16 | The Leona M. and Harry B. Helmsley Charitable Trust6 | $2.67 |
| 17 | The Annie E. Casey Foundation | $2.64 |
| 18 | The Susan Thompson Buffett Foundation4 | $2.52 |
| 19 | The Duke Endowment | $2.48 |
| 20 | Carnegie Corporation of New York1 | $2.43 |
| 21 | Robert W. Woodruff Foundation, Inc. | $2.40 |
| 22 | Margaret A. Cargill Foundation4 | $2.12 |
| 23 | Charles Stewart Mott Foundation | $2.08 |
| 24 | John S. and James L. Knight Foundation | $2.08 |
| 25 | Conrad N. Hilton Foundation | $1.98 |
| 26 | Walton Family Foundation, Inc.4 | $1.95 |
| 27 | Open Society Institute4 | $1.93 |
| 28 | The Harry and Jeanette Weinberg Foundation, Inc.5 | $1.77 |
| 29 | Casey Family Programs4 | $1.76 |
| 30 | Silicon Valley Community Foundation | $1.75 |
| 31 | The New York Community Trust | $1.74 |
| 32 | Alfred P. Sloan Foundation | $1.62 |
| 33 | Kimbell Art Foundation4 | $1.61 |
| 34 | The Annenberg Foundation2 | $1.60 |
| 35 | The Cleveland Foundation4 | $1.60 |
| 36 | The McKnight Foundation4 | $1.58 |
| 37 | The Bloomberg Family Foundation, Inc.4 | $1.57 |
| 38 | Richard King Mellon Foundation4 | $1.53 |
| 39 | Doris Duke Charitable Foundation | $1.53 |
| 40 | The Chicago Community Trust1 | $1.50 |
| 41 | Ewing Marion Kauffman Foundation4 | $1.49 |
| 42 | The James Irvine Foundation | $1.45 |
| 43 | Houston Endowment Inc. | $1.43 |
| 44 | The Simons Foundation2 | $1.41 |
| 45 | The Heinz Endowments | $1.37 |
| 46 | Eli & Edythe Broad Foundation4 | $1.35 |
| 47 | The Wallace Foundation | $1.28 |
| 48 | The Starr Foundation4 | $1.20 |
| 49 | Daniels Fund | $1.13 |
| 50 | California Community Foundation7 | $1.12 |
| Notes: 1: Data are as of Sept. 30, 2009. 2: Data are as of June 30, 2009. 3: Data are as of Aug. 31, 2009. 4: Data are as of Dec. 31, 2008. 5: Data are as of Feb. 28, 2009. 6: Data are as of March 31, 2009. 7: Data are as of June 30, 2010. Source: The Foundation Center |