Nonprofits in Greenwich, Connecticut

Nonprofits in Greenwich, Connecticut. Browse 725 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. 1974 Wihs 50 Reunion Inc

    EIN 933128451 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. A & C De Coster Foundation

    EIN 862043687 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. Aaib Inc

    EIN 237017585 · Headquarters: GREENWICH, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Aaron and Betty Lee Stern Foundation Inc

    EIN 061501986 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-PF

  5. Abilis Community Foundation Inc

    EIN 061331293 · Headquarters: GREENWICH, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Abilis Inc

    EIN 066009327 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Ability Dream Inc

    EIN 464228539 · Headquarters: GREENWICH, CT, USA · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  8. Accesscircles Inc

    EIN 822117628 · Headquarters: GREENWICH, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Acting Company of Greenwich Inc

    EIN 061307437 · Headquarters: Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. Adventures in Astronomy Inc

    EIN 920559324 · Headquarters: GREENWICH, CT, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Ahlan-ny

    EIN 834195207 · Headquarters: GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Aida-us Chapter Inc

    EIN 133804855 · Headquarters: Greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  13. AIDS Alliance of Greenwich

    EIN 223338373 · Headquarters: Greenwich, CT, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Air Conservation Trust Inc

    EIN 061042992 · Headquarters: Greenwich, CT, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  15. Alexander Host Foundation

    EIN 222549698 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  16. Allen Museum of Art

    EIN 844540850 · Headquarters: GREENWICH, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Allen Research Endowment Inc

    EIN 814117507 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Alliance Francaise of Greenwich Inc

    EIN 066053875 · Headquarters: GREENWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Alphaomega Charitable Foundation Inc

    EIN 650510147 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. Alumni Association of Psi Chapter of Psi Upsilon Inc

    EIN 150536199 · Headquarters: GREENWICH, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Amateur Athletic Union of the United States Inc

    EIN 611709241 · Headquarters: Greenwich, CT, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. American College of Healthcare Executives

    EIN 050613539 · Headquarters: GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. American Contract Bridge League Unit 126 Inc

    EIN 061053734 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Friends of the Archbishop of Canterbury's Anglican Communion Fundinc

    EIN 311720280 · Headquarters: GREENWICH, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. American Hot Rod Foundation Inc CO Stephen E Memishian

    EIN 431969463 · Headquarters: Greenwich, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  26. American Legion

    EIN 066042809 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Society of Friends of Teatro Alla Scala Inc

    EIN 472453571 · Headquarters: GREENWICH, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Amogerone Volunteer Fire Co #1 Inc

    EIN 066041123 · Headquarters: Greenwich, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Amvets

    EIN 260849513 · Headquarters: Greenwich, CT, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  30. Anantaa-om Foundation

    EIN 472531318 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Anchors for Hope Inc

    EIN 812490714 · Headquarters: GREENWICH, CT, US · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  32. Angel Choir

    EIN 450634643 · Headquarters: Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Animal Rescue Flights

    EIN 800491284 · Headquarters: Greenwich, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Anne Li Mcgraw & Charles Robert Mcgraw Family Foundation Inc

    EIN 814330868 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. Ansell Family Foundation Inc

    EIN 813723108 · Headquarters: GREENWICH, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Archaeological Associates of Greenwich Inc

    EIN 061059394 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  37. Armstrong Chamber Concerts Inc

    EIN 222564700 · Headquarters: greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  38. Arora Foundation Inc

    EIN 030576552 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Association of Divorce Financial Planner C/o L Vasileff President

    EIN 113420188 · Headquarters: GREENWICH, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. At Home in Greenwich Inc

    EIN 261266170 · Headquarters: GREENWICH, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Atlas Prize Institute

    EIN 842817288 · Headquarters: Greenwich, CT, US · Medical Research · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  42. August Family Foundation Trust

    EIN 886482090 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  43. Azcat Foundation

    EIN 814754238 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  44. B Cured Inc

    EIN 261906165 · Headquarters: GREENWICH, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. BackCountry Jazz

    EIN 208523846 · Headquarters: Greenwich, Connecticut, United States · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Banksville Community House Inc

    EIN 060688915 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Bar Association of Greenwich Inc

    EIN 061244737 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Barbara & Gary Brandt Family Foundation

    EIN 261396548 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  49. Barbaras House Inc

    EIN 060703570 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Beat Obesity Foundation Inc

    EIN 471000251 · Headquarters: Greenwich, CT, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. Bel Canto Society Inc

    EIN 133266551 · Headquarters: GREENWICH, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Bemc 4 Association

    EIN 874726186 · Headquarters: GREENWICH, CT, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Bemc Foundation

    EIN 854281986 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. Berrien House Tr

    EIN 826277716 · Headquarters: Greenwich, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Beta-spectrin 1 Sptbn1 Foundation Inc

    EIN 920518592 · Headquarters: Greenwich, CT, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Better Beginnings Inc

    EIN 475589902 · Headquarters: Greenwich, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Better Health Initiative Inc

    EIN 271402050 · Headquarters: GREENWICH, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. Big Day Gifts Inc

    EIN 473746494 · Headquarters: GREENWICH, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Big Picture Foundation

    EIN 814795736 · Headquarters: Greenwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  60. Bigtentusa Inc

    EIN 880595844 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Bimah Foundation C/o Qp Global

    EIN 453526909 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Black Iv Inc

    EIN 832498144 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. Blessed Dressed Inc

    EIN 994146217 · Headquarters: GREENWICH, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Blue Knights Ct Vii

    EIN 061197103 · Headquarters: GREENWICH, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Bmore Incorporated

    EIN 833030209 · Headquarters: GREENWICH, CT, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Bobby Fund Inc

    EIN 061322126 · Headquarters: Greenwich, CT, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  67. Boys & Girls Club of Greenwich

    EIN 060646655 · Headquarters: GREENWICH, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Braver Foundation Inc

    EIN 136277869 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  69. Breast Cancer Alliance Inc

    EIN 061453500 · Headquarters: GREENWICH, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Brille Family Foundation

    EIN 200857093 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  71. Brito Foundation Inc

    EIN 832817961 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. Brookfieldburke Foundation Inc

    EIN 061484617 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  73. Brotherhood of Railroad Signalmen

    EIN 263600837 · Headquarters: Greenwich, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Brucato Family Foundation Inc

    EIN 871154981 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Bruce Museum Inc

    EIN 237105904 · Headquarters: GREENWICH, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Bruised Camel Charitable Foundationinc

    EIN 461270945 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  77. Brunswick School Inc

    EIN 060646562 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Bucknall Family Foundation

    EIN 061485574 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  79. Buddy White Project Inc

    EIN 933051413 · Headquarters: Greenwich, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Burn Support Bangladesh Inc

    EIN 920609792 · Headquarters: Greenwich, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. Burning Tree Country Club Inc

    EIN 060777076 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  82. Bursky Family Foundation

    EIN 331531703 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  83. Bush Cup Corp

    EIN 811673583 · Headquarters: Greenwich, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. Business Insurance Foundation Inc

    EIN 464411779 · Headquarters: GREENWICH, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Byram Archibald Neighborhood Center Trust Inc

    EIN 060985313 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Byram Neighborhood Association Corp

    EIN 861811640 · Headquarters: greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Byram Shore Boat Club Inc

    EIN 061097882 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Byram Veterans Association Inc

    EIN 060775034 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Byram Volunteer Fire Department Inc

    EIN 061420116 · Headquarters: GREENWICH, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. Calf Island Foundation C/o W M Jennings & B Dater

    EIN 066304990 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  91. Call-A-Ride of Greenwich Inc

    EIN 060970902 · Headquarters: Greenwich, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Cameron Family Foundation Inc

    EIN 208085838 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Cancer Research for Integrative Medicine Research & Education Inc

    EIN 200228934 · Headquarters: GREENWICH, CT, US · Medical Research · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  94. Candidate Development Training Inc

    EIN 830589424 · Headquarters: Greenwich, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Caplan Family Foundation Trust

    EIN 137258430 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. Cardinal Quarterback Club Inc C/o Cecilie Jedlicka

    EIN 562610168 · Headquarters: GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Carl & Dorothy Bennett Foundation C/o Robin Kanarek

    EIN 066051371 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Carl Forstmann Memorial Foundation

    EIN 226042706 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  99. Carmel Academy

    EIN 134013334 · Headquarters: Greenwich, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Casa Club the Spanish School

    EIN 331605835 · Headquarters: Greenwich, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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