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. Colchester Baseball and Softball League Inc

    EIN 611572767 · Headquarters: Colchester, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Colchester Business Association Inc

    EIN 061226366 · Headquarters: Colchester, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  3. Colchester Community Theatre Inc

    EIN 934157632 · Headquarters: COLCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Colchester Continental Fife & Drum Corp

    EIN 341984079 · Headquarters: HEBRON, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Colchester Cooperative Nursery School

    EIN 060756836 · Headquarters: COLCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Colchester Cooperative Parent Teacher Organization

    EIN 061437754 · Headquarters: Colchester, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Colchester Cougars Midget Football Inc

    EIN 237301109 · Headquarters: COLCHESTER, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Colchester Emergency Communications Inc

    EIN 060946872 · Headquarters: Colchester, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2015 · Primary form: IRS Form 990

  9. Colchester Fire Fighters Association Local Number 3831

    EIN 061532584 · Headquarters: Colchester, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. Colchester Fish and Game Club Inc

    EIN 060918389 · Headquarters: Colchester, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Colchester Hayward Volunteer Fire Company

    EIN 066199925 · Headquarters: COLCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Colchester Historical Society Incorporated

    EIN 060960683 · Headquarters: Colchester, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Colchester Land Trust Inc

    EIN 810622538 · Headquarters: COLCHESTER, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Colchester Learning Foundation Inc

    EIN 263351959 · Headquarters: Colchester, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Colchester Lions Charities Inc

    EIN 061577056 · Headquarters: Colchester, CT, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990

  16. Colchester Music Boosters Inc

    EIN 933155301 · Headquarters: Colchester, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Colchester Police Union

    EIN 061430652 · Headquarters: Colchester, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Colchester Youth Basketball League Inc

    EIN 273660061 · Headquarters: COLCHESTER, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Colchester Youth Lacrosse Inc

    EIN 263325394 · Headquarters: Colchester, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Colchester Youth Soccer

    EIN 061268843 · Headquarters: Colchester, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Colchester Youth Wrestling Inc

    EIN 200571059 · Headquarters: Colchester, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Cold Spring School

    EIN 061066740 · Headquarters: New Haven, Connecticut, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Colebrook Associates Inc

    EIN 066059968 · Headquarters: Colebrook, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Colebrook Consolidated School Parent Teacher Organization Inc

    EIN 203564938 · Headquarters: Colebrook, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Colebrook Fire Department Forge Company

    EIN 932770916 · Headquarters: Colebrook, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Colebrook Historical Society Incorporated

    EIN 066046798 · Headquarters: Colebrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Colebrook Land Conservancy Inc

    EIN 061165984 · Headquarters: COLEBROOK, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Colebrook Preservation Society Inc

    EIN 208602135 · Headquarters: Colebrook, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Colebrook Volunteer Fire Dept

    EIN 800504801 · Headquarters: colebrook, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Colettes Canvas

    EIN 873288251 · Headquarters: Greenwich, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Colins Crew Inc

    EIN 461901641 · Headquarters: Wallingford, CT, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Colins Fund

    EIN 452740842 · Headquarters: Bloomfield, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Collab Incorporated

    EIN 861737815 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  34. Collaboration Healthcare Corp

    EIN 871932619 · Headquarters: NEW CANAAN, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Collaborative Center for Justice Inc

    EIN 061545854 · Headquarters: Hartford, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Collaborative Wellness Inc

    EIN 850621909 · Headquarters: New Britain, CT, US · Health Care · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  37. Collective Consciousness Inc

    EIN 141958179 · Headquarters: New Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Collective for Immigrant and Refugee Women Wellbeing

    EIN 992170344 · Headquarters: NEW HAVEN, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Collective Oyster Recycling & Restoration Foundation

    EIN 921890360 · Headquarters: FAIRFIELD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Colleen Curry Dawson Scholarship

    EIN 061631191 · Headquarters: Fairfield, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  41. College Access for All Kids Inc

    EIN 471721957 · Headquarters: Farmington, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. College Autism Network Inc

    EIN 811288718 · Headquarters: Mystic, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. College Club of Hartford

    EIN 066038633 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. College Help and Individual Needs

    EIN 932587973 · Headquarters: Greenwich, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. College Park Section Iii Owners Association Incorporated

    EIN 223340778 · Headquarters: Fairfield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. College Reading and Learning Association Northeast Chapter

    EIN 464767701 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  47. Collin George Whitmore Foundation Inc

    EIN 822034303 · Headquarters: Newtown, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. Collins Group Inc

    EIN 061377616 · Headquarters: WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Collinsville Volunteer Fire Department

    EIN 222668813 · Headquarters: COLLINSVILLE, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Colombian American Family Entertainment C a F E

    EIN 202861350 · Headquarters: NORWALK, CT, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  51. Colon Family Education Foundation Inc

    EIN 812829997 · Headquarters: MILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  52. Colonel Cares

    EIN 993798818 · Headquarters: Norwalk, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Colonel Daniel Putnam Association I

    EIN 066041260 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. Colonel Lloyd E & Joan Platt Witmer Scholarship Fund

    EIN 266621895 · Headquarters: ANSONIA, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  55. Colonial Cemeteries Inc

    EIN 060809929 · Headquarters: STAMFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Colonial Total Rewards Association Inc

    EIN 461626248 · Headquarters: Farmington, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  57. Colony Foundation

    EIN 060261454 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  58. Colorful Health Inc

    EIN 394747196 · Headquarters: Lakeville, CT, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Colors of the World Inc

    EIN 010848553 · Headquarters: HAMDEN, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Colossus Project Inc

    EIN 922421997 · Headquarters: Old Saybrook, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Colt Park Foundation Inc

    EIN 881147478 · Headquarters: HARTFORD, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Coltsville Heritage Partnership Inc

    EIN 813250954 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Columbia Autumn Classic Road Race

    EIN 465463375 · Headquarters: Columbia, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  64. Columbia Burying Ground Association

    EIN 066040744 · Headquarters: Columbia, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Columbia Business School Club of Ny Inc

    EIN 132919403 · Headquarters: GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Columbia Cooperative Nursery School

    EIN 060867955 · Headquarters: Hebron, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  67. Columbia Council 9 R & S M

    EIN 900634645 · Headquarters: East Hampton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. Columbia Group for Children in Adversity Inc

    EIN 455529488 · Headquarters: Wilton, CT, USA · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990

  69. Columbia Historical Society Inc

    EIN 237076537 · Headquarters: Columbia, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Columbia Lodge 25 Af & Am Scholarship Fund Inc

    EIN 474926149 · Headquarters: Glastonbury, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Columbia Lodge No 25 Building Association Inc

    EIN 061054619 · Headquarters: Glastonbury, CT, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Columbia Seniors Organization Inc

    EIN 050621140 · Headquarters: Columbia, CT, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  73. Columbia University Club Foundation Inc

    EIN 136105775 · Headquarters: RIVERSIDE, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  74. Columbia Volunteer Fire Department Inc

    EIN 060799489 · Headquarters: COLUMBIA, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Columbia West Street Burying Ground Association Inc

    EIN 066057349 · Headquarters: Columbia, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Columbia Windham Soccer Alliance

    EIN 061489274 · Headquarters: North Windham, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  77. Columbian Charities of Ct Inc

    EIN 060972133 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Columbiettes Incorpoated Supreme Council

    EIN 862634911 · Headquarters: Newtown, CT, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Columbiettes Incorporated

    EIN 061044005 · Headquarters: Bridgeport, CT, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  80. Columbiettes Incorporated

    EIN 061064331 · Headquarters: Wolcott, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Columbiettes Incorporated

    EIN 061088008 · Headquarters: Hamden, CT, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Columbiettes Incorporated

    EIN 061373022 · Headquarters: Norwalk, CT, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  83. Columbiettes Incorporated

    EIN 061398596 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Columbiettes Incorporated

    EIN 061573707 · Headquarters: Waterbury, CT, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  85. Columbiettes Incorporated

    EIN 061629055 · Headquarters: STamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Columbiettes Incorporated

    EIN 066172162 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Columbiettes Incorporated

    EIN 222186954 · Headquarters: Fairfeld, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Columbiettes Incorporated

    EIN 364744686 · Headquarters: Griswold, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Columbiettes Incorporated

    EIN 450575882 · Headquarters: Monroe, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Columbiettes Incorporated

    EIN 452093367 · Headquarters: Killingworth, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Columbiettes Incorporated

    EIN 462795195 · Headquarters: WILTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Columbiettes Incorporated

    EIN 510220128 · Headquarters: Southbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Columbiettes Incorporated

    EIN 510220132 · Headquarters: Norwalk, CT, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  94. Columbiettes Incorporated

    EIN 510220191 · Headquarters: Wallingford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. Columbiettes Incorporated

    EIN 510220207 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Columbiettes Incorporated

    EIN 510246661 · Headquarters: Old Saybrook, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Columbiettes Incorporated

    EIN 814351478 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Columbus Association

    EIN 060797900 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  99. Columbus Brass Ensemble Ltd

    EIN 133423279 · Headquarters: NEW FAIRFIELD, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Columbus Club Association of Branford Inc

    EIN 066103140 · Headquarters: Branford, CT, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

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