Unknown & Unclassified nonprofits in Connecticut

Unknown & Unclassified nonprofits in Connecticut. Browse 7,402 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 Robert C Geer Memorial Hospital Inc

    EIN 066071065 · Headquarters: CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  2. The Robert E Enslein Foundation Inc

    EIN 136270043 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. The Robsar Foundation Inc C/o Blanche S Goldenberg

    EIN 223145036 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  4. The Roger Ludlowe Middle School Pta

    EIN 061520442 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. The Roma Club Inc

    EIN 066069328 · Headquarters: BRIDGEPORT, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. The Rotary Club of Farmington Connecticut Inc

    EIN 237371753 · Headquarters: FARMINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. The Round Hill Club Incorporated

    EIN 060516620 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. The Rowan Center Inc

    EIN 061037583 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. The Russell Library Company

    EIN 066002310 · Headquarters: MIDDLETOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. The Russell Maguire Foundation Inc

    EIN 136162698 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. The Sack Foundation Inc C/o David L Sack

    EIN 237016765 · Headquarters: KILLINGWORTH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  12. The Saint James School Foundation Inc

    EIN 510151112 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. The Salem P T O F Inc

    EIN 061205042 · Headquarters: Salem, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. The Sanctum Inc

    EIN 222945484 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. The Sandbox Foundation Inc

    EIN 845125610 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. The Saunders Foundation Co Shipman & Goodwin

    EIN 066284362 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. The Saxe Foundation Inc

    EIN 066037207 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  18. The Schechter Foundation

    EIN 133157311 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. The Schwedel Foundation

    EIN 066068790 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. The Scottish Rite Building Corp

    EIN 061252811 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. The Seevers Family Foundation

    EIN 133437890 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. The Senior Housing Corporation of East Haddam

    EIN 061021497 · Headquarters: MOODUS, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  23. The Sheppard Foundation

    EIN 226388719 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  24. The Sherman Historical Society

    EIN 510176086 · Headquarters: Sherman, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. The Shorehaven Golf Club Incorporated

    EIN 060534650 · Headquarters: EAST NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. The Shulansky Foundation Inc

    EIN 066042338 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. The Slason Foundation Inc

    EIN 222867554 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  28. The Smith Family Foundation Inc

    EIN 203103127 · Headquarters: CANTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. The Southport Conservancy Inc

    EIN 061057342 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. The Southport School Inc

    EIN 061135389 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. The Spiros Segalas Charitable Trust

    EIN 136848308 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. The Stamford Historical Society Inc

    EIN 066039238 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. The Stamford JCC

    EIN 060646918 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. The Stanley Golf Club Incorporated

    EIN 222517634 · Headquarters: New Britain, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. The Stanwich Club Incorporated

    EIN 060790586 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  36. The Stemie Coalition Inc

    EIN 475426484 · Headquarters: MANSFIELD CTR, CT, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  37. The Stephen & Suzanne Weiss Foundation I

    EIN 133384021 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  38. The Stewart & Constance Greenfield Foundation

    EIN 066301506 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. 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

  40. 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

  41. The Stuart Foundation Inc

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

  42. The Susan Pechter Charitable Foundation

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

  43. 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

  44. 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

  45. 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

  46. The Thames Club Inc

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

  47. The Tokeneke Club Inc

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

  48. 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

  49. The Torrington Civic Symphony Inc

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

  50. The Torrington Country Club Inc

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

  51. 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

  52. The Towers Foundation Inc

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

  53. The Town and County Club Inc

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

  54. The Traveler's Employee Club

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

  55. The Troubadours

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

  56. 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

  57. 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

  58. The Uconn Club Inc

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

  59. 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

  60. 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

  61. The United Way of Greater Waterbury Inc

    EIN 060646634 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. The Unquowa School Association Inc

    EIN 060646937 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. The Val Trebbia & Val Nure Scholarship Fund

    EIN 237131741 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. The Valley Repertory Company Inc

    EIN 042767252 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. The Vervane Foundation Inc

    EIN 223256829 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. The Village Cooperative Nursery School Inc

    EIN 066009788 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. The Vlock Family Foundation Inc

    EIN 066036710 · Headquarters: ORANGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. The Volunteer Fire Department of Prospect Inc

    EIN 061271460 · Headquarters: PROSPECT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. The Wallingford Historical Society Inc

    EIN 066035188 · Headquarters: WALLIGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  70. The Waterbury Chorale Inc

    EIN 237048853 · Headquarters: Middlebury, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. The Waterbury Fish & Game Protective Association Incorporate

    EIN 222690129 · Headquarters: Naugatuck, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. The Waterford Little League Inc

    EIN 061037444 · Headquarters: WATERFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. The Waterford Public Library

    EIN 060707059 · Headquarters: WATERFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. The Watershed History Collective Inc

    EIN 061011396 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. The Watt Family Foundation

    EIN 133373456 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. The Weatherstone Family Foundation Inc

    EIN 061469074 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  77. The Wellspring Foundation Inc

    EIN 061014227 · Headquarters: BETHLEHEM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. The West Haven Community House Association Inc

    EIN 060646957 · Headquarters: WEST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. The Western Massachusetts Appaloosa Assoc Inc

    EIN 043327492 · Headquarters: SUFFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. The Weston Womens League Incorporated

    EIN 237321726 · Headquarters: Weston, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. The Wethersfield Soccer Club

    EIN 061086701 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. The White Memorial Foundation Inc

    EIN 060588850 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. The William and Alice Mortensen Foundation

    EIN 061064150 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  84. The William L Tarr Charitable Trust Peter Berdon Trustee

    EIN 222757383 · Headquarters: BRANFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  85. The Wimpfheimer Foundation Inc

    EIN 066036353 · Headquarters: Stonington, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  86. The Windham Historical Society

    EIN 066107746 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. The Windsor Fife and Drum Corp

    EIN 222702765 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. The Windsor Historical Society of Windsor Conn Inc

    EIN 060851583 · Headquarters: WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. The Wire Association International Inc

    EIN 066060608 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. The Wolcott Temple Corporation of Stafford

    EIN 320256025 · Headquarters: Stafford Springs, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. The Womans Club of Greenwich Inc

    EIN 060679087 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. The Women's Auxiliary of Jhe of Fairfield County

    EIN 061055236 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  93. The Women's Auxiliary of Saint Francis Hospital and Medical Center Inc

    EIN 060660403 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. The Woodhall School Inc

    EIN 061076770 · Headquarters: BETHLEHEM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. The Woodway Country Club Incorporated

    EIN 060595440 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  96. The Wrexham Foundation Inc

    EIN 060769957 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. The Yantic Fire Engine Company

    EIN 066066161 · Headquarters: YANTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. The Young Family Charitable Foundation

    EIN 136976453 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  99. The Zachs Family Foundation Inc

    EIN 061157320 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  100. The ZelnickBelzberg Charitable Trust

    EIN 137187853 · Headquarters: Darien, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

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