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Form 990-PFTax year 2025EIN 13-6943521

The Winterburn Foundation

A private foundation in New York, NY. Its return for tax year 2025 lists 1 grant and $500,000 paid in grants.

See which foundations fund work like yours Matching by cause, place and grant size

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.

  • Tax year 2025

    $500,000

    Grants listed
    1
    Assets, end of year
    $3,051,771

  • Tax year 2024

    $0

    Grants listed
    0
    Assets, end of year
    $3,301,262

  • Tax year 2023

    $0

    Grants listed
    0
    Assets, end of year
    $3,233,628

  • Tax year 2022

    $450,000

    Grants listed
    8
    Assets, end of year
    $3,279,772

  • Tax year 2021

    $340,000

    Grants listed
    9
    Assets, end of year
    $3,691,234

  • Tax year 2020

    $325,000

    Grants listed
    8
    Assets, end of year
    $3,906,193

  • Tax year 2019

    $290,000

    Grants listed
    10
    Assets, end of year
    $4,107,235

  • Tax year 2018

    $245,000

    Grants listed
    8
    Assets, end of year
    $4,279,957

Grants paid in 2025

1 grant, largest first

As listed on the return.

  1. International Rescue CommitteeNew York, NY

    Providing healthcare and clean water, protective services for women and children, education, and economic support

    $500,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. International aid1 grant $500,000100% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York1 grant $500,000

Officers, directors and trustees

1 person as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Alexandra M RockefellerPRESIDENT Hours 0.25Pay $0

The return

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