Nonprofits in Connecticut

Nonprofits in Connecticut. Browse 26,993 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. The Stone Trust Corporation C/o Evan Wax

    EIN 060552923 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. The Stone-wood Family Foundation

    EIN 880745007 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. The Stonington Free Library Inc

    EIN 060665194 · Headquarters: STONINGTON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. The Stonington Soccer Club Inc

    EIN 223365947 · Headquarters: PAWCATUCK, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. The Stony Creek Cemetery Associatio N Incorporated

    EIN 223200308 · Headquarters: Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. The Storehouse Project Inc

    EIN 464513921 · Headquarters: MILFORD, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. The Storr Family Foundation

    EIN 061489906 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  8. The Stratford Community Fund Inc C/o the Sterling House

    EIN 061273505 · Headquarters: STRATFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  9. The Stratford Lions Club Fund Inc

    EIN 415284176 · Headquarters: STRATFORD, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. The Stuart and Arline Small Sadaka Foundation Inc

    EIN 205921033 · Headquarters: bloomfield, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  11. The Stuart Foundation Inc

    EIN 136066191 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. The Stuart L Higley Foundation Inc

    EIN 061410177 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. The Studio and Forum of Scenic Art

    EIN 200116152 · Headquarters: MONROE, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  14. The Styrke Foundation for Rare Disease Research and Treatment

    EIN 931503591 · Headquarters: Darien, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. The Sue B Hart Foundation C/o Walt Woodward

    EIN 061602439 · Headquarters: COLUMBIA, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. The Suffield Observer Inc

    EIN 061543256 · Headquarters: Suffield, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. The Sullivan Family Foundation

    EIN 061484566 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  18. The Sultan and Ann Ahamed Family Foundation

    EIN 061517722 · Headquarters: MYSTIC, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. The Summer Community Band Incorporated

    EIN 753216565 · Headquarters: Norwalk, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. The Summer Hill Foundation

    EIN 261344446 · Headquarters: Madison, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  21. The Sunny Ridge Foundation

    EIN 201465689 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  22. The Susan and Eliot Black Foundation

    EIN 134085055 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  23. The Susan and Ralph Freydberg Foundation Inc

    EIN 208071434 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  24. The Susan Elaine Foundation Inc

    EIN 853752468 · Headquarters: OLD SAYBROOK, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  25. The Susan Fund Inc C/o Jeffrey Booth

    EIN 223174640 · Headquarters: NORWALK, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. The Susan Pechter Charitable Foundation

    EIN 223053745 · Headquarters: WOODBRIDGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. The Susan Todd Horton Class of 1910 Trust F/b/o Wellesley College

    EIN 261369039 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. The Susie Foundation Inc

    EIN 462687969 · Headquarters: West Hartford, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. The Suzanne Lafollette Culley Foundation

    EIN 680413268 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. The Sweet Blue Foundation Inc

    EIN 994501549 · Headquarters: GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. The Sydnor and Miriam Reiss Teachers Fund for Further Study In

    EIN 222574289 · Headquarters: Darien, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. The T Erik Piecyk Memorial Recreation Fund

    EIN 842978659 · Headquarters: Pomfret Center, CT, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  33. The Taft School Corporation

    EIN 060646921 · Headquarters: WATERTOWN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. The Tammy and Jay Levine Foundation Inc C/o Louis R Piscatelli

    EIN 204398295 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. The Tapping Solution Foundation Inc

    EIN 461936322 · Headquarters: BROOKFIELD, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. The Taylor-cheris Foundation

    EIN 333634415 · Headquarters: SOUTHBURY, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. The Tebil Foundation Inc C/o Steven M Loeb Esq

    EIN 136082546 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  38. The Tedmed Foundation

    EIN 812485592 · Headquarters: STAMFORD, CT, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. The Tennis Foundation of Connecticut Inc

    EIN 061287098 · Headquarters: New Haven, CT, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990

  40. The Terryville Polish American Political Club Inc

    EIN 060669652 · Headquarters: Terryville, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. The Thames Club Inc

    EIN 060560810 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  42. The Theresa M Rogers Foundation

    EIN 208635846 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  43. The Thomas Berry Foundation

    EIN 522149696 · Headquarters: WOODBRIDGE, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  44. The Thomas G Dipietro Foundation Inc Co Ronald Soccoli Jr

    EIN 263930605 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-PF

  45. The Thomas Hardy Association

    EIN 201068012 · Headquarters: New Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  46. The Thomas Meloy Foundation

    EIN 521116447 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  47. The Thrive Cooperative Center for Wellness Inc

    EIN 883921625 · Headquarters: TRUMBULL, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. The Throttle House Inc

    EIN 393378402 · Headquarters: Torrington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. The Tiny Miracles Foundation Inc

    EIN 412125069 · Headquarters: DARIEN, CT, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. The Titus Foundation Inc C/o Anna M Boronow

    EIN 061587986 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  51. The Toby Fund Inc

    EIN 270328841 · Headquarters: ORANGE, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. The Tokeneke Club Inc

    EIN 060563647 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. The Tom & Claire ONeil Foundation

    EIN 066035099 · Headquarters: Old Saybrook, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  54. The Tom & Linda Petrone Foundation Inc

    EIN 993569493 · Headquarters: Greenwich, CT, US · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. The Tommy Fund Inc

    EIN 061245787 · Headquarters: NEW HAVEN, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. The Torrington Civic Symphony Inc

    EIN 222551359 · Headquarters: Torrington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. The Torrington Country Club Inc

    EIN 060564730 · Headquarters: TORRINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  58. The Torrington Library

    EIN 060669622 · Headquarters: TORRINGTON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. The Tory Party Alumni Organization Inc

    EIN 825263211 · Headquarters: NEW HAVEN, CT, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  60. The Tow Foundation Inc

    EIN 066484045 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  61. The Towers at Tower Lane

    EIN 060870134 · Headquarters: New Haven, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. The Towers at Tower Lane

    EIN 060984337 · Headquarters: NEW HAVEN, CT, USA · Housing & Shelter · Latest available filing year: 2017 · Primary form: IRS Form 990

  63. The Towers Foundation Inc

    EIN 061331831 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. The Town and County Club Inc

    EIN 060565260 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. The Town Hall Players Inc

    EIN 352288211 · Headquarters: West Cornwall, CT, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. The Town of Darien Firefighters Foundation Inc

    EIN 651287080 · Headquarters: DARIEN, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. The Tracy Foundation

    EIN 260009676 · Headquarters: West Hartford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  68. The Tranfo Family Foundation Inc

    EIN 651080569 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  69. The Transplant Journey Inc Aka Transplant Journey

    EIN 850948828 · Headquarters: WILTON, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. The Transportation Association of Greenwich

    EIN 222531166 · Headquarters: RIVERSIDE, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  71. The Traveler's Employee Club

    EIN 066069720 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. The Tresemer Foundation Inc

    EIN 841505071 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  73. The Triana Foundation

    EIN 251886709 · Headquarters: CHESTER, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. The Trinity Foundation Dba Marian

    EIN 061623476 · Headquarters: THOMPSON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. The Triumph Fund Inc

    EIN 992262884 · Headquarters: Greenwich, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. The Troubadours

    EIN 471134499 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. The Trumbull Land Trust Inc

    EIN 061233677 · Headquarters: Trumbull, CT, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  78. The Trumbull Rotary Foundation Inc

    EIN 061503380 · Headquarters: TRUMBULL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. The Trustees and Proprietors of Bacon Academy

    EIN 061293258 · Headquarters: Colchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. The Tudor Foundation Inc

    EIN 061502288 · Headquarters: Stamford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  81. The Turnover Shop of Wilton Inc

    EIN 061325903 · Headquarters: WILTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. The Turtles Back Inc

    EIN 832782563 · Headquarters: Madison, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. The Twin Lakes Association of Salisbury Inc

    EIN 060985300 · Headquarters: SALISBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. The Two Left Feet Blues Festival Inc

    EIN 473085208 · Headquarters: ANSONIA, CT, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  85. The Tyler Hughes Fund

    EIN 800173823 · Headquarters: Enfield, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. The Uconn Club Inc

    EIN 061333372 · Headquarters: STORRS, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. The Uhnw Institute

    EIN 833703748 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. The Umbrella Club Inc

    EIN 223314578 · Headquarters: STAMFORD, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. The Unexpected Journey Inc

    EIN 823301035 · Headquarters: Fairfield, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. The Union County Watchdog Association Inc

    EIN 861153341 · Headquarters: Southington, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. The Unitarian Universalist Congregation in Westport Inc

    EIN 060766361 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  92. The United Illuminating Company Non-Union WELFARE BENEFIT TRUST

    EIN 306131955 · Headquarters: Orange, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  93. The United Mentoring Academy Inc

    EIN 061617436 · Headquarters: Bridgeport, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. The United States Pony Clubs Inc

    EIN 061168436 · Headquarters: Ledyard, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. The United States Pony Clubs Inc

    EIN 061315170 · Headquarters: North Granby, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. The United States Pony Clubs Inc

    EIN 061419695 · Headquarters: Bozrah, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. The United States Pony Clubs Inc

    EIN 066070313 · Headquarters: Sharon, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. The United States Pony Clubs Inc

    EIN 066078175 · Headquarters: Granby, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. The United States Pony Clubs Inc

    EIN 066102446 · Headquarters: Westport, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. The United States Pony Clubs Inc

    EIN 066113480 · Headquarters: Greenwich, CT, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

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