10 biggest US foundations and what they do

What are the 10 biggest foundations in the United States? Here they are in ascending order, based on their assets, along with a little bit about what social problems each addresses.

5. William and Flora Hewlett Foundation - $7.2 billion

The William and Flora Hewlett Foundation, headquartered in Menlo Park, Calif., has $7.2 billion in assets.

The other co-founder of HP wanted in on philanthropy, too. The William and Flora Hewlett Foundation seeks to “solve social and environmental problems at home and around the world.” William R. Hewlett, co-founder of the previously mentioned HP, established the foundation in 1966 with his wife and eldest son. Mr. Hewlett’s personal mantra was to “never stifle a generous impulse.” With $7.2 billion in assets, according to the Foundation Center, the Menlo Park, Calif., foundation today operates five programs in the areas of education, environment, global development and population, performing arts, and effective philanthropy. The foundation is also a significant grantmaker; $304 million was awarded in 2012, and a median grant in 2011 amounted to $125,000, according to its website. Foundation executives say it’s important to take risks in grantmaking, along with emphasizing the need to acknowledge and learn from failures in funding philanthropic ventures.

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