Nonprofits in Old Greenwich, Connecticut

Nonprofits in Old Greenwich, Connecticut. Browse 109 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.

Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.

Nonprofit profiles

  1. A Start In The Performing Arts Inc

    EIN 842513697 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Amoris Foundation Inc

    EIN 462265164 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  3. Andino International

    EIN 264423481 · Headquarters: Old Greenwich, CT, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  4. Autism Education Alliance C/o Andersen

    EIN 873318352 · Headquarters: OLD GREENWICH, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  5. Baddies Beating Cancer Inc

    EIN 394478215 · Headquarters: Old Greenwich, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Beyond American Motorcyclist Inc

    EIN 873334878 · Headquarters: Old Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Blitzer Family Foundation

    EIN 471261557 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  8. Books & Ball Inc

    EIN 472323764 · Headquarters: Old Greenwich, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  9. Booth Residence Inc

    EIN 310967986 · Headquarters: OLD GREENWICH, CT, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Bridgets Brigade Inc

    EIN 992488019 · Headquarters: OLD GREENWICH, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Cambodias Children Education Fund Inc

    EIN 611545069 · Headquarters: Old Greenwich, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  12. Cardinal Rugby Club Inc % Anita Lai

    EIN 320401461 · Headquarters: OLD GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Center for Art and Earth Inc

    EIN 133685295 · Headquarters: OLD GREENWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. Coalition for Inclusive Capitalism Usinc C/o Andersen Tax

    EIN 472359798 · Headquarters: OLD GREENWICH, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  15. Connecticut Ceramics Study Circle

    EIN 061275582 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Connecticut Society of the Sons of the American Revolution

    EIN 066068708 · Headquarters: Old Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Costa Doro Foundation C/o Andersen Tax Llc

    EIN 843250626 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Driscoll Family Foundation

    EIN 832776782 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. E J Schmeltz Scholarship Fund

    EIN 510548945 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. Friends of Binney Park

    EIN 921154250 · Headquarters: Old Greenwich, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Friends of Greenwich Point

    EIN 223051826 · Headquarters: Old Greenwich, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Friends of Thandanani Foundation

    EIN 993888888 · Headquarters: Old Greenwich, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Ghs Girls Soccer

    EIN 813365373 · Headquarters: Old Greenwich, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Grace Notes Inc

    EIN 237193872 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Greenwich High School Student Loan Fund Inc

    EIN 066071060 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Greenwich Music Festival Company

    EIN 202597105 · Headquarters: Old Greenwich, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  27. Greenwich Point Conservancy Inc

    EIN 300229904 · Headquarters: OLD GREENWICH, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Greenwich Sailing School Inc

    EIN 873923796 · Headquarters: OLD GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Greenwich Spanish School Corporation the Greenwich Spanish School Gss

    EIN 271109956 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Greenwich Town Party Inc

    EIN 453555667 · Headquarters: OLD GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Haimes Family Foundation

    EIN 261578471 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. Ifs Family Foundation Inc

    EIN 061552716 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  33. Infectious Diseases Society of New York Inc

    EIN 133734533 · Headquarters: Old Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. International Assoc of Lions Clubs

    EIN 066043154 · Headquarters: Old Greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. James and Helen Cabrera Memorial Scholarship Fund

    EIN 205366660 · Headquarters: Old Greenwich, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Jjj Family Foundation

    EIN 136881122 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  37. Karin Bain and John Kukral Foundation

    EIN 814631874 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. Kids Cancer Foundation Inc

    EIN 393142415 · Headquarters: Old Greenwich, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Kids Know Best Inc

    EIN 923565509 · Headquarters: Old Greenwich, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Life Matters Inc

    EIN 020602210 · Headquarters: Old Greenwich, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  41. Life Spring Network Inc

    EIN 204307197 · Headquarters: OLD GREENWICH, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Ligado Society

    EIN 824409919 · Headquarters: Old Greenwich, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Lions Club Foundation of Greenwich Inc

    EIN 066068573 · Headquarters: Old Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Maasai Honey Inc

    EIN 461107937 · Headquarters: Old Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Military Family Support of Greenwich Inc

    EIN 900607716 · Headquarters: Old Greenwich, CT, US · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  46. New Leaf Coalition

    EIN 821678669 · Headquarters: OLD GREENWICH, CT, US · Crime & Legal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. North Mianus Bulldogs Inc

    EIN 522381525 · Headquarters: OLD GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Nursing Education Alumni Association Inc

    EIN 133994898 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Old Greenwich Association

    EIN 811032309 · Headquarters: Old Greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Old Greenwich Retail Merchants Association

    EIN 061630692 · Headquarters: Old Greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Old Greenwich Riverside North Mianus Preservation Association

    EIN 822795522 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Old Greenwich School PTA

    EIN 066074547 · Headquarters: Old Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Old Greenwich Yacht Club

    EIN 510148202 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Old Timers Athletic Association of Greenwich Connecticut Inc

    EIN 066056345 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Oratory of the Little Way Inc

    EIN 066079146 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Pacs1 Syndrome Research Foundation C/o Taruna Reddy

    EIN 826460046 · Headquarters: OLD GREENWICH, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Penn Oberlander Family Foundation Inc C/o Laurence Penn

    EIN 203858920 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  58. Pitch Your Peers Inc

    EIN 352543830 · Headquarters: Old Greenwich, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Pronatura Mexico USA Inc

    EIN 260468709 · Headquarters: Old Greenwich, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  60. Putnam Generals Football Inc

    EIN 061543843 · Headquarters: Old Greenwich, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Robert & Dale Rosen Charitable Foundation Tr U/a 8/05/92

    EIN 136997530 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Robert a and Leslie N Cenci Foundation

    EIN 133437928 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  63. Rocky Point Club Inc

    EIN 060688038 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  64. Samstone Foundation

    EIN 476586278 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. Science Education Center Inc

    EIN 061055755 · Headquarters: Old Greenwich, CT, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  66. Sekolo Projects Inc

    EIN 800115298 · Headquarters: Old Greenwich, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  67. Shamana Giving Inc

    EIN 474673787 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. Sharks Swim Team Inc

    EIN 137016733 · Headquarters: OLD GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990

  69. Shaw Family Foundation C/o John Shaw

    EIN 061486109 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  70. Small World Initiative Inc

    EIN 811772308 · Headquarters: OLD GREENWICH, CT, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Sound Beach Community Band Inc

    EIN 320189702 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Sound Beach Volunteer Services Foundation Inc

    EIN 061052014 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Spidacares Inc

    EIN 833656831 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  74. St Pauls Center of New York Inc

    EIN 134157757 · Headquarters: Old Greenwich, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  75. Suzanne T and Frank W Millard Foundation

    EIN 100000648 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  76. Tandem Fund Inc

    EIN 994252659 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Tensoccer Foundation Inc

    EIN 814608374 · Headquarters: Old Greenwich, CT, US · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  78. The Achievement Fund Inc

    EIN 821433029 · Headquarters: Old Greenwich, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. The Asher Family Foundation Inc

    EIN 061514419 · Headquarters: Old Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. The Bryan C Cary Statutory Trust Foundat

    EIN 810784080 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  81. The Education Television Fund Inc

    EIN 205782149 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2021 · Primary form: IRS Form 990

  82. The Gibbons Foundation

    EIN 061188483 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  83. The Greenwich Jewish Study Group Inc

    EIN 060924899 · Headquarters: Old Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  84. The Handal Foundation Inc

    EIN 133162054 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  85. The Innis Arden Golf Club Inc

    EIN 060400660 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. The International Education Exchange Inc

    EIN 640964247 · Headquarters: OLD GREENWICH, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  87. The Jenny and Jay Galluzzo Family Foundation Inc

    EIN 472579607 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  88. The Julius Family Foundation

    EIN 206387243 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  89. The Laverack Family Foundation

    EIN 562307477 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  90. The Lee Family Foundation

    EIN 061563501 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  91. The Mhg Foundation Inc

    EIN 201993159 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. The Mike and Charlotte Delaney Foundation

    EIN 133437923 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. The Miller Charitable Trust

    EIN 926050257 · Headquarters: Old Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. The Pamela Howard Family Foundation Inc C/o Andersen Tax Llc

    EIN 134192506 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. The Perrin Family Foundation C/o Andersen Tax Llc

    EIN 223309886 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  96. The Perrot Memorial Library Associa of Old Greenwichinc

    EIN 061012967 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. The Ravengate Foundation

    EIN 066492514 · Headquarters: Old Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. The Ruth Angeline Whitley Memorial Foundation Inc

    EIN 204202689 · Headquarters: Old Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. The Sound Beach Volunteer Fire

    EIN 311703883 · Headquarters: OLD GREENWICH, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Through the Eyes of Children Inc

    EIN 841857979 · Headquarters: OLD GREENWICH, CT, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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