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Form 990-PFTax year 2024EIN 81-3945624

The Helen Diller Foundation

A private foundation in San Mateo, CA. Its return for tax year 2024 lists 7 grants and $44.8 million paid in grants.

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Tax year 2024 (period ending Dec 31, 2024), 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

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

  • Tax year 2024

    $44,769,050

    Grants listed
    7
    Assets, end of year
    $812,090

  • Tax year 2023

    $11,648,307

    Grants listed
    5
    Assets, end of year
    $244,849,988

  • Tax year 2022

    $15,915,000

    Grants listed
    5
    Assets, end of year
    $103,000,013

  • Tax year 2021

    $35,225,000

    Grants listed
    10
    Assets, end of year
    $17,032,621

  • Tax year 2020

    $14,225,000

    Grants listed
    7
    Assets, end of year
    $9,502,136

  • Tax year 2019

    $101,378,333

    Grants listed
    8
    Assets, end of year
    $1,647,687

  • Tax year 2018

    $32,550,000

    Grants listed
    5
    Assets, end of year
    $66,677

Grants paid in 2024

7 grants, largest first

As listed on the return.

  1. University of California - San FranciscoSan Francisco, CA

    Helen diller medical center

    $25,000,000
  2. Helen Diller Family FoundationSan Francisco, CA

    Diller teen fellows program and general support

    $6,950,000
  3. Helen Diller Family FoundationSan Francisco, CA

    Diller teen fellows program and general support

    $6,600,000
  4. American Society for TechnionNew York, NY

    Helen diller quantum center

    $5,000,000
  5. Congregation Emanu-ElSan Francisco, CA

    Investing in the future campaign

    $950,000
  6. Jewish Community FederationSan Francisco, CA

    Transformation fund

    $250,000
  7. Congregation Emanu-ElSan Francisco, CA

    Investing in the future campaign

    $19,050

Where the money goes

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

  1. Education1 grant $25,000,00057% of the total
  2. Philanthropy and grantmaking2 grants $13,550,00031% of the total
  3. International aid1 grant $5,000,00011% of the total

By State

Grants to organizations with a US address, latest year.

  1. California6 grants $39,769,050
  2. New York1 grant $5,000,000

Officers, directors and trustees

3 people as filed

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

  • Jaclyn SafierPRESIDENT Hours 2Pay $0
  • Phyllis CookTREASURER & SECRETARY Hours 5Pay $0
  • Nicolas ElsishansAUDIT CHAIR Hours 2Pay $0

The return

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