THE WINTERBURN FOUNDATION
Data sourced from IRS 990-PF public filings
Supports international humanitarian efforts, education, and animal welfare, funding organizations like the International Rescue Committee and the Animal Medical Center, primarily in New York.
THE WINTERBURN FOUNDATION has 18 grants on file funding 9 organizations. Giving increased from $450,000 in 2022 to $500,000 in 2025. Reported assets: $3,051,771.
Total Assets
$3,051,771
Grants (Last Year)
$500,000
Total Grants on File
18
Recipients Funded
9
Giving History
| Year | Total Granted | Grants Made | Avg Grant |
|---|---|---|---|
| 2025 | $500,000 | 1 | $500,000 |
| 2022 | $450,000 | 8 | $56,250 |
| 2021 | $340,000 | 9 | $37,778 |
Top Grant Recipients
New York, NY
New York, NY
NEW YORK, NY
NEW YORK, NY
ITHACA, NY
NEW YORK, NY
New York, NY
NEW YORK, NY
NEW YORK, NY
NEW YORK, NY
Showing top 10 of 18 grants on file.
Officers & Trustees
From 2025 IRS 990-PF filing (data available for 15 filing years)
ALEXANDRA M ROCKEFELLER
PRESIDENT
IRS Filing History
THE WINTERBURN FOUNDATION has IRS 990-PF filings on record for 15 years, spanning 2010 to 2025.
Frequently Asked Questions
Other Foundations in New York
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