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Foundation Lookup

Form 990-PFTax year 2025EIN 45-2591325

Leiden Conservation Foundation

A private foundation in Hunting Valley, OH. Its return for tax year 2025 lists 5 grants and $585,571 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

    $585,571

    Grants listed
    5
    Assets, end of year
    $331,502

  • Tax year 2024

    $708,502

    Grants listed
    5
    Assets, end of year
    $512,884

  • Tax year 2023

    $434,082

    Grants listed
    6
    Assets, end of year
    $164,284

  • Tax year 2022

    $393,761

    Grants listed
    11
    Assets, end of year
    $50,176

  • Tax year 2021

    $310,220

    Grants listed
    7
    Assets, end of year
    $251,080

  • Tax year 2020

    $365,182

    Grants listed
    9
    Assets, end of year
    $61,733

  • Tax year 2019

    $464,027

    Grants listed
    9
    Assets, end of year
    $28,234

  • Tax year 2018

    $452,857

    Grants listed
    18
    Assets, end of year
    $120,215

Grants paid in 2025

5 grants, largest first

As listed on the return.

  1. International Crane FoundationBaraboo, WI

    Variety of projects

    $452,013
  2. Endangered Wildlife TrustSouth Africa, OH

    Regional resouce center

    $94,310
  3. Nelson Mandela UniversitySouth Africa, OH

    African penguin project

    $20,048
  4. Akron ZooAkron, OH

    Variety of projects

    $16,000
  5. Lion LandscapesUnited Kingdom TQ U, OH

    The big give

    $3,200

Where the money goes

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

  1. Animals1 grant $452,013100% of the total

By State

Grants to organizations with a US address, latest year.

  1. Wisconsin1 grant $452,013
  2. Ohio4 grants $133,558

Officers, directors and trustees

2 people as filed

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

  • Thomas M LeidenPRESIDENT Hours 1Pay $0
  • Kathleen A LeidenSECRETARY/TR Hours 1Pay $0

The return

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