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. Connecticut State Grange Patrons of Husbandry

    EIN 237218828 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Connecticut State Grange Patrons of Husbandry

    EIN 237273852 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Connecticut State Grange Patrons of Husbandry

    EIN 237298617 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Connecticut State Grange Patrons of Husbandry

    EIN 237318729 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  5. Connecticut State Grange Patrons of Husbandry

    EIN 237584819 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Connecticut State Grange Patrons of Husbandry

    EIN 237584836 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Connecticut State Grange Patrons of Husbandry

    EIN 237584873 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Connecticut State Grange Patrons of Husbandry

    EIN 237584882 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Connecticut State Grange Patrons of Husbandry

    EIN 237584887 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  10. Connecticut State Grange Patrons of Husbandry

    EIN 237584902 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  11. Connecticut State Grange Patrons of Husbandry

    EIN 237584908 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Connecticut State Grange Patrons of Husbandry

    EIN 237584918 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Connecticut State Grange Patrons of Husbandry

    EIN 237584920 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Connecticut State Grange Patrons of Husbandry

    EIN 237584935 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Connecticut State Grange Patrons of Husbandry

    EIN 237584961 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Connecticut State Grange Patrons of Husbandry

    EIN 463372215 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Connecticut State Grange Patrons of Husbandry

    EIN 824902360 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Connecticut State Grange Patrons of Husbandry

    EIN 825410034 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Connecticut State Grange Patrons of Husbandry

    EIN 825414039 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Connecticut State Marksmanship Training Inc

    EIN 995050942 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Connecticut State Medical Society Charitable Trust

    EIN 066340079 · Headquarters: NORTH HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Connecticut State Medical Society Inc

    EIN 060665164 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Connecticut State Police Union Inc

    EIN 061046318 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Connecticut State Seniors Golf Association Inc

    EIN 237253365 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Connecticut State Society of Anesthesiologists Inc

    EIN 066079041 · Headquarters: UNIONVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Connecticut State Society of Orthodontists Inc

    EIN 823212916 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. Connecticut State Univers American

    EIN 060942016 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Connecticut Street Rod Association

    EIN 223032480 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Connecticut Surgical Quality Collaborative Inc

    EIN 061046679 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Connecticut Teachers of English to Speakers of Other Languages Mcclea

    EIN 222577087 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Connecticut Technology Council Inc

    EIN 061387547 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Connecticut Tooling and Machining Association

    EIN 060797654 · Headquarters: MYSTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Connecticut Town Clerks Associationinc

    EIN 223076161 · Headquarters: CROMWELL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Connecticut Trial Lawyers Association

    EIN 061003190 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Connecticut Turnaround Management A

    EIN 061497196 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Connecticut United Foundation

    EIN 991524508 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Connecticut Valley Chapter Intnl Society of Explosives Engineers

    EIN 061416156 · Headquarters: OXFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Connecticut Valley Driving Club Inc

    EIN 060977574 · Headquarters: Old Lyme, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Connecticut Valley Litho Club Inc

    EIN 066025969 · Headquarters: North Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  40. Connecticut Valley Mycological Society Inc

    EIN 222793958 · Headquarters: Eastford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Connecticut Valley Region Porsche Club of America

    EIN 061066831 · Headquarters: MERIDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Connecticut Valley Siberian Husky Club Inc

    EIN 061155491 · Headquarters: PLAINVILLE, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Connecticut Valley Theatre Organ Society Inc

    EIN 060844830 · Headquarters: Newtown, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Connecticut Vending Association

    EIN 320293817 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  45. Connecticut Water Works Association Inc

    EIN 222782018 · Headquarters: Durham, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Connecticut Watercolor Society Inc

    EIN 066068548 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Connecticut Women Artists Inc

    EIN 800993016 · Headquarters: East Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Connecticut Women's Golf Assoc

    EIN 061058292 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Connecticut Women's Golf Association Scholarship Fund

    EIN 060972683 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Connecticut Womens Basketball Hall of Fame Inc

    EIN 200609912 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Connecticut Womens Lacrosse Officials Association Inc

    EIN 223001674 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Connecticut Yankee Council Inc Boy Scouts of America

    EIN 060646793 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Connecticut Yankees for Nebraska

    EIN 371650120 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Connecticut Zmirah Chorale Inc

    EIN 061013242 · Headquarters: Bethany, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. Connecticut-westchester Cocker Spaniel Club Inc

    EIN 113109729 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Connectikids Inc

    EIN 061035985 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Connection State Grange Patrons of Husbandry

    EIN 066055201 · Headquarters: Winchester Center, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Connectitut Education Association

    EIN 237107199 · Headquarters: WEST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Conneticut Nutmeg Winnies

    EIN 161771599 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  60. Conneticut Volunteer Services for the Blind & Handicapped Inc

    EIN 061006561 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Connex Credit Union

    EIN 060655052 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Connpirg Citizen Lobby Inc

    EIN 061341175 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Constance B Ripley Land Trust

    EIN 060955824 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  64. Construction and General Laborers' Local Union No 230 Realty Trust

    EIN 061414301 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Construction Financial Management Association

    EIN 061219099 · Headquarters: GLASTONBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Construction Management Association of America

    EIN 412102218 · Headquarters: Rocky Hill, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. Continuum Management Corporation

    EIN 061043193 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Continuum of Care, Inc.

    EIN 060836524 · Headquarters: New Haven, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Copper Valley Club

    EIN 060702858 · Headquarters: CHESHIRE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Coram Cemetery Association Inc

    EIN 060950971 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Corcoran Sundquist American Legion Post 83

    EIN 060901906 · Headquarters: BRANFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Corey for Senate

    EIN 822434991 · Headquarters: TORRINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  73. Corinthian Lodge 63 AF & AM

    EIN 237003050 · Headquarters: North Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Corinthian Temple Building Association

    EIN 261415195 · Headquarters: North Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Cornelia De Lange Syndrome Foundation

    EIN 061057497 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Cornell Poker Club

    EIN 331351308 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Cornerstone Foundation Inc

    EIN 222587192 · Headquarters: ROCKVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Cornwall Cemetery Association

    EIN 066037884 · Headquarters: Cornwall, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Cornwall Child Center Inc

    EIN 237373735 · Headquarters: WEST CORNWALL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Cornwall Conservation Trust Inc

    EIN 061203660 · Headquarters: West Cornwall, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Cornwall Historical Society Inc

    EIN 066073400 · Headquarters: CORNWALL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Cornwall Housing Corporation

    EIN 222959566 · Headquarters: CORNWALL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Cornwall Library Association Inc

    EIN 060669590 · Headquarters: CORNWALL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Cornwall Village Improvement Society

    EIN 066042508 · Headquarters: CORNWALL BRG, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Cos Cob Archers Inc

    EIN 061135292 · Headquarters: cos cob, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Cos Cob Revolver & Rifle Club Inc

    EIN 066052196 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Cottonwood Foundation Inc

    EIN 066067121 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  88. Council of American Maritime Museums Inc

    EIN 237407534 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Council of Darien School Parents Group

    EIN 911960215 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Counseling & Stress Research Center Inc

    EIN 061039080 · Headquarters: MYSTIC, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  91. Country Club of Farmington Connecticut

    EIN 060309240 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Country Club of Waterbury Incorporated

    EIN 060309310 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Country Dance and Song Society Inc

    EIN 061002449 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. Courage International Inc

    EIN 800615570 · Headquarters: Trumbull, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Couri Foundation Inc

    EIN 010441043 · Headquarters: Ridgefield, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  96. Court Appointed Special Advocates of Northen Connecticut

    EIN 823660654 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  97. Coventry Historical Society Incorpporated

    EIN 060983256 · Headquarters: Coventry, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Coventry Project Graduation

    EIN 472226101 · Headquarters: Coventry, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Coventry Village Improvement Society Incorporated

    EIN 061485610 · Headquarters: COVENTRY, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Cragin Memorial Library

    EIN 060689697 · Headquarters: COLCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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