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. Lowthorpe Association Incorporated

    EIN 060961817 · Headquarters: Norwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Lptv Broadcasters Association Inc

    EIN 862313089 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Lucy Pang Yoa Chang Foundation

    EIN 061190397 · Headquarters: Norwalk, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. Lucy Robbins Welles Library Inc

    EIN 066035131 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Lulac Head Start Inc

    EIN 222478707 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Lunion Des Franco-americans Du Ct

    EIN 223033724 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Luso-american Financial a Fraternal Benefit Society

    EIN 237232101 · Headquarters: GLASTONBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Luther Ridge at Middletown Inc

    EIN 200216017 · Headquarters: MIDDLETOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Lutheran Assisted Living at Middletown Inc

    EIN 200215979 · Headquarters: MIDDLETOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Lutheran Housing Corporation at Middletown Inc

    EIN 061574629 · Headquarters: MIDDLETOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Lutheran Service Association Inc

    EIN 061272794 · Headquarters: MIDDLETOWN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Lux Improvitas an Undergraduate Ensemble

    EIN 463451478 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  13. Lwga

    EIN 844782390 · Headquarters: Westport, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. LY Spear Foundation Co F Haberlandt

    EIN 066026051 · Headquarters: Mystic, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  15. Lyme Ambulance Association Inc

    EIN 060933886 · Headquarters: HADLYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Lyme Art Association Inc

    EIN 060932073 · Headquarters: OLD LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Lyme Public Library Foundation Inc

    EIN 237208228 · Headquarters: LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Lymes Youth Service Bureau

    EIN 061015706 · Headquarters: Old Lyme, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Lynde Point Lighthouse Society Inc

    EIN 992128485 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Maasai Honey Inc

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

  21. Mabel C Stevens Tr Uw Xxxxx0005 C/o the Episcopal Church in Connecticut

    EIN 066432254 · Headquarters: MERIDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. Mad Dogs Cricket Club Inc

    EIN 451029553 · Headquarters: Darien, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Mad River Foundation

    EIN 136097034 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Madaket Homeowners Association

    EIN 264733423 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  25. Madison Beach Preservation Association

    EIN 371762753 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  26. Madison Country Club Inc

    EIN 060436540 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Madison Hose Co 1 Inc P O Box 573

    EIN 066070026 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Madison Lions Foundation Inc

    EIN 223266512 · Headquarters: Killingworth, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Madison Masonic Temple Corporation

    EIN 060958778 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Madison Rod and Gun Club Inc

    EIN 060942196 · Headquarters: Killingworth, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Madison Rotary Club

    EIN 061498469 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Madison Rotary Foundation Inc

    EIN 066075666 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Madison Winter Club Inc

    EIN 066069006 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  34. Madison Youth Soccer Club

    EIN 061067445 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Magyar Studies of America Inc

    EIN 061009346 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Mainers for Fair Laws

    EIN 872245349 · Headquarters: Orange, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  37. Majestic Waterfowl Sanctuary Inc

    EIN 202891425 · Headquarters: Lebanon, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Makalia Temple

    EIN 413155492 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Makalia Temple No 172

    EIN 991308888 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Mallory Brook Farm Inc

    EIN 331473431 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Mamanasco Lake Improvement Fund Inc

    EIN 237446617 · Headquarters: RIDGEFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Manchester BPOE 1893

    EIN 060649225 · Headquarters: Manchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Manchester Community College Foundation Inc

    EIN 066105971 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Manchester Community Services Council Inc

    EIN 222606362 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Manchester Congregations Housing Corporation

    EIN 061079802 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. Manchester Land Conservation Trust Inc

    EIN 237212665 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Manchester Little League - NL

    EIN 521242381 · Headquarters: Bolton, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  48. Manchester Memorial Service & Skilled Maintenance Employees United Local 5121

    EIN 061615967 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Manchester Pipe Band Inc

    EIN 510200353 · Headquarters: Woodstock Valley, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Mandell JCC

    EIN 060662142 · Headquarters: West Hartford, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Manross Fred Tr Fbo Br Hoslib

    EIN 066338289 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  52. Mansfield Historical Society Inc

    EIN 066068580 · Headquarters: Storrs, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Mansfield Republican Town Committee

    EIN 042865476 · Headquarters: Storrs Mansfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Manufacturers Association of New Haven County Inc

    EIN 066068581 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Manufacturing Alliance Service Corporation Inc

    EIN 061370390 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Manumit United

    EIN 814120693 · Headquarters: Uncasville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Maple Cemetary Association Inc

    EIN 060724046 · Headquarters: EAST BERLIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Marathon Mind Foundation

    EIN 413156912 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. MARCH, Inc. of Manchester

    EIN 061016068 · Headquarters: Manchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Marcia M Polayes Foundation Inc C/o Zimmer and Zimmer Pc

    EIN 061160555 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  61. Marian Heights Inc

    EIN 510614189 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. Marian Work Study Corporation

    EIN 921568627 · Headquarters: Shelton, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Marie G Dennett Foundation Inc

    EIN 061060970 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Marilyn T Krom Foundation Corp

    EIN 473119013 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  65. Marine Cadets of America

    EIN 061314296 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  66. Marine Chemists' Association Inc

    EIN 521168405 · Headquarters: STONINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Marine Corps League

    EIN 020804229 · Headquarters: Moodus, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. Marine Corps League

    EIN 060941568 · Headquarters: Plantsville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Marine Corps League

    EIN 061326293 · Headquarters: Ridgefield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Marine Corps League

    EIN 061340138 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Marine Corps League

    EIN 061407249 · Headquarters: portland, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  72. Marine Corps League

    EIN 061408091 · Headquarters: bristol, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Marine Corps League

    EIN 061410416 · Headquarters: Moodus, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Marine Corps League

    EIN 061415290 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Marine Corps League

    EIN 061419805 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Marine Corps League

    EIN 061561772 · Headquarters: Prospect, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Marine Corps League

    EIN 061562016 · Headquarters: Ansonia, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  78. Marine Corps League

    EIN 061568581 · Headquarters: Unionville, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. Marine Corps League

    EIN 061828807 · Headquarters: MERIDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Marine Corps League

    EIN 066099295 · Headquarters: MERIDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Marine Corps League

    EIN 237049953 · Headquarters: Canaan, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Marine Corps League

    EIN 260498517 · Headquarters: Taftville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Marine Corps League

    EIN 261479265 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Marine Corps League

    EIN 263928255 · Headquarters: UNCASVILLE, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Marine Corps League

    EIN 571178734 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Marine Corps League

    EIN 743242178 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Marine Corps League

    EIN 800534385 · Headquarters: Moodus, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. Marine Corps League

    EIN 800617731 · Headquarters: Plantsville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Marion Gislason Obernauer Memorial Fund

    EIN 066422269 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  90. Marjorie J Baldwin Estate Tr Aka Mary Jewell Baldwin Fund

    EIN 066216205 · Headquarters: Tolland, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  91. Mark R Fusco Foundation

    EIN 222566615 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. Mark Twain Library Association Inc

    EIN 060776655 · Headquarters: REDDING, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Marlborough Association for Senior Housing Inc

    EIN 061039607 · Headquarters: MARLBOROUGH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Marlborough Cooperative Nursery School Inc

    EIN 066007936 · Headquarters: Marlborough, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Marlborough Elementary Child Care Association Inc

    EIN 222546979 · Headquarters: Marlborough, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Marlborough Volunteer Fire Company

    EIN 060946331 · Headquarters: Marlborough, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Marlborough Youth Athletic League

    EIN 237129556 · Headquarters: Marlborough, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Martha Moxley Foundation John Moxley Trustee

    EIN 133207033 · Headquarters: WESTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. Martha Washington Straus-harry H Straus Foundation Inc

    EIN 560645526 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  100. Martin Family Foundation Inc

    EIN 934782284 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

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