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Form 990-PFTax year 2025EIN 82-3353232

Guestrin Family Foundation

A private foundation in Stanford, CA. Its return for tax year 2025 lists 1 grant and $323,993 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

    $323,993

    Grants listed
    1
    Assets, end of year
    $4,251,404

  • Tax year 2024

    $303,313

    Grants listed
    1
    Assets, end of year
    $4,179,818

  • Tax year 2023

    $275,018

    Grants listed
    1
    Assets, end of year
    $4,127,229

  • Tax year 2022

    $108,819

    Grants listed
    1
    Assets, end of year
    $4,091,622

  • Tax year 2021

    $165,977

    Grants listed
    1
    Assets, end of year
    $4,049,827

  • Tax year 2020

    $168,766

    Grants listed
    1
    Assets, end of year
    $4,014,408

  • Tax year 2019

    $25,000

    Grants listed
    2
    Assets, end of year
    $3,533,141

  • Tax year 2018

    $72,869

    Grants listed
    17
    Assets, end of year
    $1,413,501

Grants paid in 2025

1 grant, largest first

As listed on the return.

  1. GS Donor Advised Philanthropy FundNew York, NY

    To promote philanthropy in the us

    $323,993

Where the money goes

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

  1. Philanthropy and grantmaking1 grant $323,993100% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York1 grant $323,993

Officers, directors and trustees

2 people as filed

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

  • Emily FoxVICE PRESIDENT Hours 0Pay $0
  • Carlos GuestrinPRESIDENT/TREASURER Hours 0Pay $0

The return

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