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Form 990-PFTax year 2025EIN 86-2043687

A & C De Coster Foundation

A private foundation in Greenwich, CT. Its return for tax year 2025 lists 11 grants and $454,342 paid in grants.

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

Tax year 2025 (period ending Jan 31, 2026), 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

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

  • Tax year 2025

    $454,342

    Grants listed
    11
    Assets, end of year
    $9,816,633

  • Tax year 2024

    $435,000

    Grants listed
    9
    Assets, end of year
    $8,912,759

  • Tax year 2023

    $436,000

    Grants listed
    8
    Assets, end of year
    $8,921,835

  • Tax year 2022

    $179,500

    Grants listed
    5
    Assets, end of year
    $8,966,956

  • Tax year 2021

    $0

    Grants listed
    0
    Assets, end of year
    $9,541,034

Grants paid in 2025

11 grants, largest first

As listed on the return.

  1. Brooklyn Jesuit PrepBrooklyn, NY

    General Fund

    $100,000
  2. Back Country JazzGreenwich, CT

    General Fund

    $92,342
  3. Circle of CareWilton, CT

    General Fund

    $70,000
  4. Myraid USA - formerly King Baudouin Foundation United StatesNew York, NY

    General Fund

    $50,000
  5. At Home in GreenwichGreenwich, CT

    General Fund

    $25,000
  6. Habitat For Humanity of Coastal Fairfield CountyStratford, CT

    General Fund

    $25,000
  7. Kids in CrisisCos Cob, CT

    General Fund

    $25,000
  8. Especially Everyone IncGreenwich, CT

    General Fund

    $25,000
  9. Neighbor to NeighborGreenwich, CT

    General Fund

    $25,000
  10. Kino Border InitiativeTucson, AZ

    General Fund

    $12,000
  11. Sandy Hook FoundationHighlands, NJ

    General Fund

    $5,000

Where the money goes

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

  1. Education1 grant $100,00056% of the total
  2. Arts and culture2 grants $30,00017% of the total
  3. Housing and shelter1 grant $25,00014% of the total
  4. Human services1 grant $25,00014% of the total

By State

Grants to organizations with a US address, latest year.

  1. Connecticut7 grants $287,342
  2. New York2 grants $150,000
  3. Arizona1 grant $12,000
  4. New Jersey1 grant $5,000

Officers, directors and trustees

2 people as filed

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

  • Alain De CosterTrustee Hours 10Pay $0
  • Catherine De CosterTrustee Hours 10Pay $0

The return

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