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Foundation Lookup

Form 990-PFTax year 2024EIN 13-3407819

Thomas L Kempner Jr Foundation

A private foundation in Southampton, NY. Its return for tax year 2024 lists 22 grants and $11.6 million paid in grants.

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

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

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

  • Tax year 2024

    $11,575,752

    Grants listed
    22
    Assets, end of year
    $326,388,820

  • Tax year 2023

    $17,594,561

    Grants listed
    25
    Assets, end of year
    $306,675,675

  • Tax year 2022

    $16,443,883

    Grants listed
    18
    Assets, end of year
    $307,756,994

  • Tax year 2021

    $16,496,043

    Grants listed
    16
    Assets, end of year
    $328,355,645

  • Tax year 2020

    $10,901,065

    Grants listed
    9
    Assets, end of year
    $283,533,640

  • Tax year 2019

    $13,630,754

    Grants listed
    15
    Assets, end of year
    $252,975,752

Grants paid in 2024

22 grants, largest first

As listed on the return.

  1. Jewish Communal FundNew York, NY

    Daf replenishment -thomas l. Kempner JR. Foundation inc. Fund

    $3,235,000
  2. Mount Sinai HospitalNew York, NY

    President's strategic initiative fund

    $2,000,000
  3. Planned Parenthood Federation of America IncNew York, NY

    Provider recruitment, patient navigation & epic

    $1,250,000
  4. Wildlife Conservation SocietyBronx, NY

    Marine strongholds and blue carbon

    $1,000,000
  5. Harlem Village AcademiesNew York, NY

    Accelerated mathematics phase II

    $944,000
  6. Open Space Institute IncNew York, NY

    Greenway trails acquisition program

    $519,660
  7. Transportation Alternatives IncNew York, NY

    General operating

    $400,000
  8. Businesses United in Investing Lending and DevelopmentRedwood City, CA

    Support and licensed partnerships

    $350,000
  9. Achievement First Charter SchoolNew Haven, CT

    CT general operations

    $250,000
  10. American Museum of Natural HistoryNew York, NY

    Futter fund for science and society

    $250,000
  11. Harvard Business SchoolBoston, MA

    Dean's innovation fund

    $250,000
  12. Rare IncArlington, VA

    Rare brazil's fish forever program - community-led management of the amazon coast

    $200,000
  13. Bletchley ParkBletchley, United Kingdom

    Block b learning centre

    $175,425
  14. Central Park ConservancyNew York, NY

    Essential central park fund

    $166,667
  15. Tides CenterSan Francisco, CA

    Da office project

    $150,000
  16. Yale UniversityNew Haven, CT

    Fund for civic engagement and discourse

    $100,000
  17. Yale UniversityNew Haven, CT

    Fund for yale school of engineering & applied science

    $100,000
  18. Parks & TrailsAlbany, NY

    Greenways across new york state via the est 2.0 proposal

    $90,000
  19. Stanford University Board of TrusteesStanford, CA

    Criminal justice center/three strikes project

    $75,000
  20. Stanford University Board of TrusteesStanford, CA

    Sallyanne payton fellowship fund, center for racial justice and blsa fund

    $45,000
  21. Yale UniversityNew Haven, CT

    Annual fund

    $20,000
  22. Harvard Business SchoolBoston, MA

    Annual fund

    $5,000

Approved for future payment

5 grants

Approved in 2024 and not yet paid.

  1. Stanford University Board of TrusteesStanford, CA

    Criminal justice center/three strikes project

    $500,000
  2. Yale UniversityNew Haven, CT

    Yale

    $440,000
  3. RareArlington, VA

    Rare brazil's fish forever program - community-led management of the amazon coast

    $300,000
  4. Tides CenterSan Francisco, CA

    Da office project

    $300,000
  5. Kabuki Syndrome FoundationNorthbrook, IL

    General operating

    $150,000

Where the money goes

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

  1. Health2 grants $3,250,00033% of the total
  2. Philanthropy and grantmaking1 grant $3,235,00033% of the total
  3. Animals1 grant $1,000,00010% of the total
  4. Education1 grant $944,00010% of the total
  5. Environment2 grants $719,6607% of the total
  6. Community development1 grant $350,0004% of the total
  7. 2 other causes2 grants $316,6673% of the total

By State

Grants to organizations with a US address, latest year.

  1. New York10 grants $9,855,327
  2. California4 grants $620,000
  3. Connecticut4 grants $470,000
  4. Massachusetts2 grants $255,000
  5. Virginia1 grant $200,000

Officers, directors and trustees

6 people as filed

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

  • Thomas Kempner JrPRESIDENT/TREASURER Hours 2Pay $0
  • Katheryn C PattersonVICE PRES/SECRETARY Hours 0.5Pay $0
  • Trevor KempnerDIRECTOR Hours 0.5Pay $0
  • Thomas N KempnerDIRECTOR Hours 0.5Pay $0
  • Jessica S KempnerDIRECTOR Hours 0.5Pay $0
  • Holly R RaubCHIEF ADMINISTRATIVE OFFICER Hours 24Pay $110,000

The return

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