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Form 990-PFTax year 2025EIN 23-7042005

Leonard Mayer Foundation

A private foundation in Livingston, NJ. Its return for tax year 2025 lists 11 grants and $31,300 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

    $31,300

    Grants listed
    11
    Assets, end of year
    $251,149

  • Tax year 2024

    $19,000

    Grants listed
    11
    Assets, end of year
    $291,056

  • Tax year 2023

    $26,000

    Grants listed
    15
    Assets, end of year
    $341,136

  • Tax year 2022

    $18,000

    Grants listed
    10
    Assets, end of year
    $355,523

  • Tax year 2021

    $13,000

    Grants listed
    14
    Assets, end of year
    $532,385

  • Tax year 2020

    $18,964

    Grants listed
    16
    Assets, end of year
    $518,551

  • Tax year 2019

    $20,994

    Grants listed
    16
    Assets, end of year
    $362,398

  • Tax year 2018

    $12,900

    Grants listed
    12
    Assets, end of year
    $327,121

Grants paid in 2025

11 grants, largest first

As listed on the return.

  1. Parkinsons FoundationNew York, NY

    Operating funds

    $5,000
  2. Prostate Cancer FoundationSanta Monica, CA

    Operating funds

    $5,000
  3. Memorial Sloan KetteringHagerstown, MD

    Operating funds

    $4,000
  4. Alzheimers AssociationChicago, IL

    Operating funds

    $3,000
  5. American Friends of Magen DavidWashington, DC

    Operating funds

    $3,000
  6. Friends of the Israel Defense ForcesNew York, NY

    Operating funds

    $3,000
  7. St Jude Childrens HospitalNew York, NY

    Operating funds

    $3,000
  8. American Macular Degeneration FoundationNorthampton, MA

    Operating funds

    $2,000
  9. Hillel of Broward and Palm BeachBoca Raton, FL

    Operating funds

    $1,800
  10. Holocaust Memorial MuseumMerrifield, VA

    Operating funds

    $1,000
  11. Wounded Warrior ProjectJacksonville, FL

    Operating funds

    $500

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 $7,00038% of the total
  2. Medical research1 grant $5,00027% of the total
  3. Health1 grant $3,00016% of the total
  4. International aid1 grant $3,00016% of the total
  5. Human services1 grant $5003% of the total

By State

Grants to organizations with a US address, latest year.

  1. Minnesota2 grants $10,000
  2. District of Columbia2 grants $6,000
  3. New York2 grants $6,000
  4. Maryland1 grant $4,000
  5. Massachusetts1 grant $2,000
  6. Florida1 grant $1,800
  7. Virginia1 grant $1,000
  8. Kansas1 grant $500

Officers, directors and trustees

2 people as filed

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

  • Leonard MayerPRESIDENT Hours 0Pay $0
  • Harriet MayerVICE PRESIDENT Hours 0Pay $0

The return

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