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Form 990-PFTax year 2025EIN 83-2788578

Assenmacher Foundation

A private foundation in Tucson, AZ. Its return for tax year 2025 lists 7 grants and $69,500 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

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

  • Tax year 2025

    $69,500

    Grants listed
    7
    Assets, end of year
    $319,529

  • Tax year 2024

    $114,800

    Grants listed
    6
    Assets, end of year
    $298,129

  • Tax year 2023

    $64,000

    Grants listed
    8
    Assets, end of year
    $351,023

  • Tax year 2022

    $71,000

    Grants listed
    7
    Assets, end of year
    $351,641

  • Tax year 2021

    $113,000

    Grants listed
    9
    Assets, end of year
    $336,248

  • Tax year 2020

    $119,500

    Grants listed
    4
    Assets, end of year
    $302,966

Grants paid in 2025

7 grants, largest first

As listed on the return.

  1. El Rio FoundationTucson, AZ

    Program support

    $25,000
  2. Centurion FoundationTucson, AZ

    Program support

    $20,000
  3. University of Arizona FoundationTucson, AZ

    Student-athlete excellence fund

    $10,000
  4. Children's Advocacy Center of Southern ArizonaTucson, AZ

    Program support

    $7,500
  5. Southern Arizona Adaptive SportsTucson, AZ

    Program support

    $5,000
  6. University of Arizona FoundationTucson, AZ

    Father's day council tucson

    $1,000
  7. University of ArizonaTucson, AZ

    Pcce master garden program

    $1,000

Where the money goes

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

  1. Philanthropy and grantmaking2 grants $45,00074% of the total
  2. Education2 grants $11,00018% of the total
  3. Sports and recreation1 grant $5,0008% of the total

By State

Grants to organizations with a US address, latest year.

  1. Arizona7 grants $69,500

Officers, directors and trustees

1 person as filed

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

  • William AssenmacherPRESIDENT Hours 1Pay $0

The return

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