A river running through a deep pine forest valley

Grant recipient EIN 11-3227901Environment

Who funds The Clamshell Foundation Inc?

21 private foundations gave The Clamshell Foundation Inc in East Hampton, NY $91,740 across 44 grants, in tax years 2017 to 2025.

Grants listed on funders’ 990-PF returns for tax years 2017 to 2025, read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Grants received by year

Grants from private foundations by the funder’s tax year. The latest year is in blue; it is not complete until all its returns reach the IRS.

Every foundation grant, by year

44 grants

Each line as the funder listed it on its return, newest year first, then largest.

  1. Bogatin Family Foundation IncSan Diego, CA 2025

    Community / health program

    $250
  2. Alfred and Harriet Feinman Foundationbrooklyn, NY 2024

    Charitable

    $5,000
  3. The Reba Judith Sandler Foundation IncBoston, MA 2024

    General support

    $3,500
  4. Irvin Stern FoundationBoca Raton, FL 2024

    General support

    $3,500
  5. Bogatin Family Foundation IncSan Diego, CA 2024

    Community / health program

    $250
  6. Pilzer Foundation IncDobbs Ferry, NY 2024

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $100
  7. Alfred and Harriet Feinman Foundationbrooklyn, NY 2023

    Charitable

    $5,000
  8. The Ravi Chopra Foundation IncMiami, FL 2023

    General support

    $5,000
  9. Wunsch Foundation IncNew York, NY 2023

    Communities

    $4,000
  10. Bogatin Family Foundation IncSan Diego, CA 2023

    Community / health program

    $100
  11. Pilzer Foundation IncDobbs Ferry, NY 2023

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $100
  12. Amazonsmile FoundationSeattle, WA 2023

    General support

    $57
  13. The Randall & Barbara Smith FoundationTeaneck, NJ 2022

    Unrestricted grant

    $10,000
  14. The Reba Judith Sandler Foundation IncBoston, MA 2022

    General support

    $5,000
  15. Wunsch Foundation IncNew York, NY 2022

    Communities

    $3,500
  16. The Scheerer Family FoundationOjai, CA 2022

    To support organizations involved with human services, education, and the environment

    $3,000
  17. The Pfizer Foundation IncNew York, NY 2022

    Matching gifts

    $1,000
  18. Bogatin Family Foundation IncSan Diego, CA 2022

    Community / health program

    $100
  19. Pilzer Foundation IncDobbs Ferry, NY 2022

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $100
  20. Amazonsmile FoundationSeattle, WA 2022

    General support

    $90
  21. Alice Rosenwald FundNew York, NY 2021

    General support

    $10,000
  22. Alice and Jaclyn Houseknecht FoundationMontauk, NY 2021

    To aid the mission to partner and provide funds to local groups including the retreat, montauk, east hampton, amagansett, springs & sag harbor food pantries, east end cares, ola of eastern long island, soul grow and olman sanabria, among others.

    $5,000
  23. Wunsch Foundation IncNew York, NY 2021

    Communities

    $3,500
  24. Alfred and Harriet Feinman Foundationbrooklyn, NY 2021

    Charitable

    $2,500
  25. Bogatin Family Foundation IncSan Diego, CA 2021

    Community / health program

    $300
  26. Pilzer Foundation IncDobbs Ferry, NY 2021

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $100
  27. Amazonsmile FoundationSeattle, WA 2021

    General support

    $74
  28. Alice Rosenwald FundNew York, NY 2020

    General support

    $5,000
  29. The JCT FoundationMiami, FL 2020

    General support

    $5,000
  30. Wunsch Foundation IncNew York, NY 2020

    Communities

    $4,500
  31. The Penniman Foundation IncBoston, MA 2020

    General support

    $1,000
  32. Muriel F Siebert Foundation IncSouthampton, NY 2020

    General purpose

    $1,000
  33. Bayberry Family FoundationNew York, NY 2020

    Supports the people, programs, and projects of the east end.

    $750
  34. Bogatin Family Foundation IncSan Diego, CA 2020

    Community / health program

    $370
  35. J Gurwin Foundation IncNew York, NY 2020

    Charity

    $250
  36. BC Partners Foundation (US) IncNew York, NY 2020

    Charity outreach

    $200
  37. Pilzer Foundation IncDobbs Ferry, NY 2020

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $100
  38. Amazonsmile FoundationSeattle, WA 2020

    General support

    $49
  39. Susanna Porter & James Clark Giving FundNew York, NY 2019

    Food bank

    $500
  40. J Gurwin Foundation IncNew York, NY 2019

    Charity

    $400
  41. Allan Silverstein Family Foundation IncRidgewood, NJ 2019

    Charitable

    $250
  42. Pilzer Foundation IncDobbs Ferry, NY 2019

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $250
  43. Pilzer Foundation IncDobbs Ferry, NY 2018

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $500
  44. Pilzer Foundation IncDobbs Ferry, NY 2017

    Enrich lives of others by fostering education in health, cultural and environmental fields of endeavor

    $500

Funders of similar organizations nearby

Foundations that gave to other environment organizations in East Hampton, NY and are not among The Clamshell Foundation Inc’s funders above.

  1. Stephanie & Lawrence Flinn Jrcharitable TrustRye, NY 2 grants Preselected only $10,250 to similar organizations
  2. Rockefeller Brothers Fund IncNew York, NY 4 grants Accepts applications $200,000 to similar organizations
  3. Baron Family FoundationNew York, NY 1 grant Preselected only $100,000 to similar organizations
  4. Cumming FoundationJackson, WY 1 grant Preselected only $50,000 to similar organizations
  5. Mary Jane Hipp Brock Family FoundationNew York, NY 19 grants Preselected only $31,647 to similar organizations
  6. The Daniel and Estrellita Brodsky Family FoundationNew York, NY 1 grant Preselected only $20,000 to similar organizations
  7. The Donald and Barbara Zucker Family FoundationNew York, NY 2 grants Preselected only $20,000 to similar organizations
  8. The Robert Kravis and Kimberly Kravis FoundationNew York, NY 2 grants Preselected only $20,000 to similar organizations

About this match

Funders write a recipient’s name and address, not its EIN. We matched these grants to EIN 11-3227901 by name and ZIP code against the IRS list of exempt organizations and our list of filers. Grants we could not tie to one organization are not counted here.