The Andrew W. Mellon Foundation, a New York-based not-for-profit corporation, was
established in 1969 by the children of Andrew W. Mellon, and named in his honor. Ailsa
Mellon Bruce’s Avalon Foundation, established in 1940, and the Old Dominion Foundation,
established in 1941 by Paul Mellon, were consolidated to create the new organization.
In its first year, Mellon’s assets totaled $273 million. By the end of 2020, the total
endowment was approximately $8.2 billion with annual grantmaking of over $400 million.
The Richard King Mellon Foundation, named for Andrew W. Mellon’s nephew, is a separate
philanthropic foundation headquartered in Pittsburgh, Pennsylvania.
Foundation, Mellon. “About the Mellon Foundation.” Mellon Foundation. Accessed April
8, 2023. https://mellon.org/about/.