The Connecticut State Capitol

Form 990-PFTax year 2025EIN 06-1479508

Dekker Foundation

A private foundation in Westport, CT. Its return for tax year 2025 lists 18 grants and $22,748 paid in grants.

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. It still lists the details below.

Contact
Dekker Foundation Co Cat Trail Mana
606 Post Road East Suite 681
Westport, CT 06880
(203) 226-3152
Form and materials
Written request
Deadlines
None
Restrictions
None

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $22,748

    Grants listed
    18
    Assets, end of year
    $384,999
  • Tax year 2024

    $9,000

    Grants listed
    17
    Assets, end of year
    $16,757
  • Tax year 2023

    $8,649

    Grants listed
    7
    Assets, end of year
    $6,583
  • Tax year 2022

    $13,800

    Grants listed
    6
    Assets, end of year
    $6,038
  • Tax year 2021

    $4,200

    Grants listed
    2
    Assets, end of year
    $7,739
  • Tax year 2020

    $0

    Grants listed
    0
    Assets, end of year
    $0
  • Tax year 2019

    $0

    Grants listed
    0
    Assets, end of year
    $0
  • Tax year 2018

    $0

    Grants listed
    0
    Assets, end of year
    $0

Grants paid in 2025

18 grants, largest first

As listed on the return.

  1. United Religions & Transcultural Faith Alliance FoundationSan Francisco, CA

    General operating support

    $10,000
  2. Americans United for the Separation of Church & StateWashington, DC

    General operating support

    $2,500
  3. Afya FoundationYonkers, NY

    General operating support

    $1,000
  4. Doctors Without BoardersHagerstown, MD

    General operating support

    $1,000
  5. Marthas Vineyard HospitalSomerville, MA

    General operating support

    $1,000
  6. Mount Holyoke CollegeSouth Hadley, MA

    General operating support

    $1,000
  7. Palenstines Childrens Relief FundLos Langeles, CA

    General operating support

    $1,000
  8. Beth-El SynagogueOmaha, NE

    General operating support

    $500
  9. Big Brothers Big Sisters of WestchesterPort Chester, NY

    General operating support

    $500
  10. Boys & Girls Club of Northern WestchesterMount Kisco, NY

    General operating support

    $500
  11. Feeding WestchesterElmsford, NY

    General operating support

    $500
  12. Greenwich HospitalGreenwich, CT

    General operating support

    $500
  13. Island Grown InitiativeVineyard HVN, MA

    General operating support

    $500
  14. New York Public RadioNew York, NY

    General operating support

    $500
  15. Ocean ConservancyWashington, DC

    General operating support

    $500
  16. Pan-Mass ChallengeNeedham, MA

    General operating support

    $500
  17. Paws Crossed Animal ShelterElmsford, NY

    General operating support

    $500
  18. Hudson River Sloop Clearwater IncBeacon, NY

    General operating support

    $248

Where the money goes

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

  1. Civil rights1 grant $2,50034% of the total
  2. Education1 grant $1,00014% of the total
  3. Human services1 grant $1,00014% of the total
  4. Environment2 grants $74810% of the total
  5. Arts and culture1 grant $5007% of the total
  6. Food and agriculture1 grant $5007% of the total
  7. 2 other causes2 grants $1,00014% of the total

By State

Grants to organizations with a US address, latest year.

  1. California2 grants $11,000
  2. New York7 grants $3,748
  3. District of Columbia2 grants $3,000
  4. Massachusetts4 grants $3,000
  5. Maryland1 grant $1,000
  6. Connecticut1 grant $500
  7. Nebraska1 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.

  • David DekkerTRUSTEE Hours 0.1Pay $0
  • Russell DekkerTRUSTEE Hours 0.1Pay $0

The return

More foundations

Similar foundations

Same main cause (civil rights), giving between a quarter and four times this foundation’s where possible, nearby first.

  1. Haimes Family FoundationOld Greenwich, CT 22 grants Preselected only $17,400 giving
  2. The Susan and Ralph Freydberg Foundation IncStamford, CT 7 grants Preselected only $15,000 giving
  3. The Korobkin Foundation IncRiverside, CT 12 grants Preselected only $35,000 giving
  4. Barak Zelinsky Foundation IncNew Haven, CT 15 grants Preselected only $49,694 giving
  5. The Vlock Family Foundation IncOrange, CT 10 grants Preselected only $60,750 giving