Largest private operating foundations in the United States
The 50 largest private operating foundations in the United States
The 50 largest private operating foundations in the United States by revenue range from $1.1 billion down to $10 million.
The largest are Glaxosmithkline Patient Access Programs Foundation, The J Paul Getty Trust, and Otsuka Patient Assistance Foundation Inc.
Organizations
2,095
Total revenue
$4.9B
Total assets
$36.9B
Largest private operating foundations in the United States
Ranked by revenue.
![](https://mtcubacenter.org/wp-content/themes/mtcuba/assets/images/favicon/"apple-touch-icon-152x152.png"){kind=icon}
Public data from IRS Form 990 e-file & Business Master File. A 990 shows how an
organization is run and funded — not its real-world outcomes. Figures are presented without evaluation;
we do not rate, score, or rank organizations. · philanthropy.org