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. Connecticut Business and Industry Association Inc

    EIN 060439660 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Connecticut Business Aviation Group

    EIN 030447589 · Headquarters: Sandy Hook, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Connecticut Business Development Corporation

    EIN 222534136 · Headquarters: WALLINGFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  4. Connecticut Business Environmental Council Inc

    EIN 061388970 · Headquarters: Bristol, CT, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  5. Connecticut Business Leadership Network Inc

    EIN 061620904 · Headquarters: West Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Connecticut Butterfly Association Inc

    EIN 223345360 · Headquarters: Wallingford, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Connecticut Cactus and Succulent Society

    EIN 222517487 · Headquarters: TORRINGTON, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Connecticut Calendar Girlz Inc

    EIN 455303160 · Headquarters: Unionville, CT, US · Crime & Legal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  9. Connecticut Campaign Against Cooleys Anemia Inc

    EIN 237323951 · Headquarters: Orange, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  10. Connecticut Campground Owners Assn

    EIN 061172551 · Headquarters: Waterbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Connecticut Camping Association Inc

    EIN 061180450 · Headquarters: HADDAM NECK, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Connecticut Cancer Foundation Inc

    EIN 061240574 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Connecticut Cancer Foundation Inc

    EIN 274393730 · Headquarters: Manchester, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  14. Connecticut Canine Care & Rescue Inc

    EIN 842645812 · Headquarters: West Suffield, CT, US · Animal Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  15. Connecticut Canine Search and Rescue Inc

    EIN 061406046 · Headquarters: Glastonbury, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Connecticut Cannabis Chamber of Commerce

    EIN 874678012 · Headquarters: Rocky Hill, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Connecticut Capoeira & Dance Center Inc

    EIN 833188478 · Headquarters: West Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. Connecticut Captive Insurance Association Inc

    EIN 454926404 · Headquarters: Hartford, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Connecticut Career Counseling and Development Association

    EIN 871959514 · Headquarters: Manchester, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Connecticut Career Fire Chiefs Association Inc

    EIN 932131556 · Headquarters: Waterbury, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Connecticut Carpenters Apprentice and Training Fund

    EIN 237277981 · Headquarters: HAMDEN, CT, USA · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990

  22. Connecticut Carpenters Health Fund

    EIN 237032832 · Headquarters: HAMDEN, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  23. Connecticut Carry Inc

    EIN 454038079 · Headquarters: NORTH BRANFORD, CT, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  24. Connecticut Carwash Association

    EIN 061065301 · Headquarters: HIGGANUM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Connecticut Cat Connection Inc

    EIN 260971015 · Headquarters: Windsor, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Connecticut Catholic Alliance Inc

    EIN 061225410 · Headquarters: CHESHIRE, CT, US · Religion Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  27. Connecticut Catholic Hospital Council Inc

    EIN 061055432 · Headquarters: MIDDLETOWN, CT, USA · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  28. Connecticut Catholic Public Affairs Conference Inc

    EIN 010941732 · Headquarters: HARTFORD, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Connecticut Ccim Chapter Inc C/o New Haven Middlesex Asso of Realtor

    EIN 061243232 · Headquarters: GUILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Connecticut Cdfi Alliance Inc

    EIN 030380921 · Headquarters: WALLINGFORD, CT, USA · Housing & Shelter · Latest available filing year: 2021 · Primary form: IRS Form 990

  31. Connecticut Cellar Savers Inc

    EIN 311585304 · Headquarters: Watertown, CT, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  32. Connecticut Cemetery Association Inc

    EIN 066056615 · Headquarters: New Haven, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Connecticut Center for a New Economy Inc

    EIN 061582994 · Headquarters: HARTFORD, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Connecticut Center for Advanced Tec

    EIN 201051854 · Headquarters: EAST HARTFORD, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Connecticut Center for Arts & Technology

    EIN 451257955 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Connecticut Center for Employee Ownership

    EIN 863473576 · Headquarters: Old Lyme, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Connecticut Center for Mind-body Enrichment Inc

    EIN 825427056 · Headquarters: Clinton, CT, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Connecticut Center for Nonviolence

    EIN 260890808 · Headquarters: HARTFORD, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Connecticut Center for Patient Safety

    EIN 201517678 · Headquarters: Fairfield, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  40. Connecticut Center for Social Innovation Inc

    EIN 463266595 · Headquarters: New Haven, CT, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Connecticut Center for the Book Incorporated

    EIN 223084563 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Connecticut Center for the Prevention of Emotional Abuse

    EIN 874000059 · Headquarters: Brookfield, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  43. Connecticut Ceramics Study Circle

    EIN 061275582 · Headquarters: Old Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Connecticut Certification Board Inc

    EIN 061033064 · Headquarters: Meriden, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  45. Connecticut Challenge Inc DBA Mission Your Mission CT Challenge

    EIN 202777748 · Headquarters: Southport, CT, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Connecticut Chamber Choir Inc

    EIN 061073837 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Connecticut Chamber Orchestra Inc

    EIN 510169180 · Headquarters: westport, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  48. Connecticut Chapter National Institute of Pension Administrator

    EIN 061392385 · Headquarters: North Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  49. Connecticut Chapter North American Rock Garden Society

    EIN 061767387 · Headquarters: Franklin, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  50. Connecticut Chapter of ACHMM Inc

    EIN 300432691 · Headquarters: Plainville, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  51. Connecticut Chapter of Afcc Inc

    EIN 462716503 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  52. Connecticut Chapter of Certified Fraud Examiners

    EIN 061346633 · Headquarters: Cheshire, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Connecticut Chapter of Nasf Inc

    EIN 383936547 · Headquarters: Somers, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Connecticut Chapter of Professional Women In

    EIN 203272148 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Connecticut Chapter of the 8Th Air Force Historical Society

    EIN 061366701 · Headquarters: N Branford, CT, US · Public & Societal Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  56. Connecticut Chapter of the Aaidd Inc

    EIN 061193772 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  57. Connecticut Chapter of the Air and Wast Management Association

    EIN 061369613 · Headquarters: Middletown, CT, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  58. Connecticut Chapter of the Alpha De

    EIN 813572946 · Headquarters: Storrs, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  59. Connecticut Chapter of the American Association of Nurse Attorneys Inc

    EIN 061336721 · Headquarters: MADISON, CT, US · Crime & Legal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  60. Connecticut Chapter of the American Chestnut Foundation Inc

    EIN 061360461 · Headquarters: Old Lyme, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Connecticut Chapter of the American College of Cardiology

    EIN 061390571 · Headquarters: GLASTONBURY, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  62. Connecticut Chapter of the American College of Surgeons Professional As

    EIN 043839991 · Headquarters: STAMFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Connecticut Chapter of the American Planning Associates

    EIN 222511702 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Connecticut Chapter of the American Society of Landscape Architects Inc

    EIN 222592807 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Connecticut Chapter of the International Association of Arson Investigators

    EIN 223007527 · Headquarters: Vernon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Connecticut Chapter of the International Public Management

    EIN 222566895 · Headquarters: Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. Connecticut Chapter of the National Academy of Elder Law Attorneys Inc

    EIN 204725789 · Headquarters: Madison, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Connecticut Chapter Piano Technicians Guild Inc

    EIN 223060066 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Connecticut Charter Schools Network Inc

    EIN 061584858 · Headquarters: HARTFORD, CT, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  70. Connecticut Chasers Ltd

    EIN 061491554 · Headquarters: Weatogue, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Connecticut Children's

    EIN 060646755 · Headquarters: HARTFORD, CT, United States · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  72. Connecticut Children's Alliance Inc

    EIN 270182554 · Headquarters: HARTFORD, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Connecticut Children's Foundation

    EIN 222619869 · Headquarters: Hartford, CT, United States · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. Connecticut Children's Specialty Group Inc

    EIN 061446900 · Headquarters: HARTFORD, CT, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  75. Connecticut Children's Theatre Inc

    EIN 202010851 · Headquarters: ESSEX, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Connecticut Childrens Museum Inc

    EIN 237346410 · Headquarters: NEW HAVEN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Connecticut Childrens Services Inc

    EIN 222655532 · Headquarters: new milford, CT, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  78. Connecticut Chinese Culture Association Inc

    EIN 800635247 · Headquarters: Farmington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Connecticut Chinese Dance Company

    EIN 464150560 · Headquarters: Stamford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Connecticut Chinese Education Association Inc

    EIN 208062480 · Headquarters: New Canaan, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Connecticut Chiropractic Council

    EIN 061367651 · Headquarters: SOUTH WINDSOR, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Connecticut Chiropractic Physicians Association Incorporated

    EIN 237033112 · Headquarters: Portland, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Connecticut Chopin Foundation Inc

    EIN 455228356 · Headquarters: Rocky Hill, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Connecticut Choral Artists Inc

    EIN 222755473 · Headquarters: NEW BRITAIN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Connecticut Choral Society Inc

    EIN 061043577 · Headquarters: Southbury, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Connecticut Christmas Tree Growers Association Incorporated

    EIN 237003073 · Headquarters: Torrington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Connecticut Citizen Action Group Inc

    EIN 060872695 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Connecticut Citizen Research Group Inc

    EIN 060889894 · Headquarters: HARTFORD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Connecticut Citizens Defense League Inc

    EIN 800420189 · Headquarters: Southbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Connecticut Citizenship Fund Inc Dept of the State

    EIN 223172903 · Headquarters: West Hartford, CT, US · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  91. Connecticut Civics Institution Inc

    EIN 881981407 · Headquarters: West Hartford, CT, US · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Connecticut Civil War Round Table Inc

    EIN 453536887 · Headquarters: TORRINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Connecticut Classic Chevy

    EIN 061409752 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Connecticut Classic Inc

    EIN 472434796 · Headquarters: WATERTOWN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Connecticut Clean Communities Advisory Inc

    EIN 934746851 · Headquarters: Woodbury, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Connecticut Clean Waterways Project Inc

    EIN 880714938 · Headquarters: old saybrook, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Connecticut Club Managers Association

    EIN 237176539 · Headquarters: GREENWICH, CT, USA · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  98. Connecticut Coalition Against Domestic Violence Inc

    EIN 060985675 · Headquarters: MIDDLETOWN, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Connecticut Coalition for Achievement Advocacy Inc

    EIN 830417690 · Headquarters: Stamford, CT, USA · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  100. Connecticut Coalition for Animals

    EIN 452698497 · Headquarters: Berlin, CT, USA · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

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