Largest Charitable Foundations by Total Assets
The Bill & Melinda Gates Foundation remains the world's largest charitable foundation by total assets, with reported assets of roughly $54 billion as of the most recent IRS Form 990 filings, and it has paid out billions in grants since its founding in 2000. The foundation focuses on global health, poverty alleviation, and education, and it regularly publishes detailed grant data on its website gatesfoundation.org.
The Ford Foundation, established in 1936, reported total assets of approximately $16 billion in its latest public filings and is one of the oldest and largest private foundations in the United States. It primarily funds social justice, human rights, and democratic participation initiatives, with grant-making data available through its official site fordfoundation.org.
Top Foundations by Annual Grant Spending
The Bezos Earth Fund, launched by Jeff Bezos in 2020, committed up to $10 billion to address climate change and has already deployed billions in grants to environmental organizations and researchers. The fund's early grantee list includes major universities and conservation groups, with updates published on its official portal bezosearthfund.org.
The Open Society Foundations, founded by George Soros, reported annual grant expenditures exceeding $1 billion in recent years and operates in more than 120 countries. Its programs span democratic governance, public health, and education, and detailed project-level data are accessible through its transparency portal opensocietyfoundations.org.
How to Search and Verify Charitable Foundations
Using IRS Tax Exempt Organization Search
The IRS Tax Exempt Organization Search tool allows users to verify the legal status, EIN, and filing history of any U.S. charitable foundation by name or EIN. The database includes Form 990-PF filings that report assets, income, grants, and compensation, making it the primary source for due diligence on any foundation IRS Tax Exempt Organization Search.
Key Data Points to Check
When reviewing a foundation, focus on the total assets, gross receipts, qualifying distributions, and grant amounts reported on Form 990-PF. These figures reveal whether a foundation is actively spending on charitable purposes or holding assets for extended periods, and they are updated annually with the IRS filing deadline IRS Charities and Non-Profits.