Largest foundations: 2015
See the 10 largest private foundations ranked by investment assets.
Investment assets: $5.6 billionPictured: J. Paul Getty Museum, Los Angeles
Investment assets: $5.9 billionPictured: Detroit Institute of Art
Investment assets: $5.9 billionPictured: South Pole Telescope
Investment assets: $6.4 billionPictured: The New England Aquarium, Boston
Investment assets: $7.3 billionPictured: Battle Creek, Mich., which is a leading recipient of the foundation's causes
Investment assets: $7.5 billionPictured: Christian Theological Seminary, Indianapolis
Investment assets: $7.9 billionPictured: Global warming protest sign
Investment assets: $9.2 billionPictured: FNV ad promoting healthier eating habits
Investment assets: $11.5 billionPictured: Detroit Institute of Art
Investment assets: $36.4 billionPictured: Vaccination is a leading cause for the foundation
The photos represent some of the causes the foundations support.