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. Citizens for Animal Protetion Inc

    EIN 222998917 · Headquarters: Cheshire, CT, US · Animal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  2. Citizens for Bransford Environment Inc

    EIN 061563757 · Headquarters: Branford, CT, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  3. Citizens for Clean Groundwater Inc

    EIN 264436547 · Headquarters: OLD LYME, CT, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Citizens for Easton

    EIN 060989528 · Headquarters: Easton, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Citizens for Gmo Labeling

    EIN 463839003 · Headquarters: Tolland, CT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  6. Citizens for Public Commons Inc

    EIN 812601509 · Headquarters: Sandy Hook, CT, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  7. Citizens for Quality Sickle Cell Care Inc

    EIN 753090191 · Headquarters: Avon, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  8. Citizens Hose Company No 6

    EIN 222990640 · Headquarters: Danbury, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  9. Citizens Network of the Capital Region Inc

    EIN 223223193 · Headquarters: West Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  10. Citizens Policy Forum of Connecticut

    EIN 922533169 · Headquarters: GREENWICH, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Citrone Foundation Inc

    EIN 473375379 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. City & Regional Magazine Association

    EIN 222269813 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. City Abc Ten Pin League

    EIN 061010302 · Headquarters: Groton, CT, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  14. City Angels Baseball Academy

    EIN 851632821 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. City Center Danbury Events Inc

    EIN 061290494 · Headquarters: DANBURY, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. City Church

    EIN 933568150 · Headquarters: WINDSOR, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. City Helpers Inc

    EIN 842410705 · Headquarters: Waterbury, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  18. City Housing Development Inc

    EIN 844035072 · Headquarters: Stamford, CT, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. City Lax Foundation Inc

    EIN 824082637 · Headquarters: GREENWICH, CT, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  20. City Light Academy Inc C/o Andrew Vindigni

    EIN 812749332 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990

  21. City Lights & Company

    EIN 205462244 · Headquarters: BRIDGEPORT, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. City Mission

    EIN 872816038 · Headquarters: Waterbury, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. City Mission Schools Inc

    EIN 833152508 · Headquarters: Waterbury, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. City Mission Society of Meriden Ct Inc

    EIN 473040342 · Headquarters: Meriden, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. City Missionary Association of New Haven C/o Brian Borgerson Cpa

    EIN 066032939 · Headquarters: WOODBRIDGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. City of Groton Local 1964 I a F F

    EIN 510226966 · Headquarters: Groton, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. City of Putnam Crime Prevention Fund Inc

    EIN 222513443 · Headquarters: Putnam, CT, US · Crime & Legal Related · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  28. City of Refuge Deliverance Ministry

    EIN 211241671 · Headquarters: Bridgeport, CT, USA · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  29. City of Refuge Ministry Inc C/o Mary Anderson

    EIN 364627173 · Headquarters: HAMDEN, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. City Point Yacht Club Inc

    EIN 060708424 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. City Seed Inc

    EIN 830397621 · Headquarters: NEW HAVEN, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. City Sisters Outreach Ministries Inc

    EIN 881145216 · Headquarters: New Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. City Youth Theater

    EIN 850778640 · Headquarters: Waterbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Cityreach Ct

    EIN 874427000 · Headquarters: Plainville, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Citysingers of Hartford Inc

    EIN 061193754 · Headquarters: East Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Citywide Youth Coalition

    EIN 061386638 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Civic Family Services Inc

    EIN 061086554 · Headquarters: BANTAM, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Civic Life Project Inc

    EIN 453455554 · Headquarters: MILFORD, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Civic Orchestra of New Haven Inc

    EIN 060849570 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Civic Trust Public Lobbying Company

    EIN 273829823 · Headquarters: New Milford, CT, US · Crime & Legal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  41. Civic Works Dept Inc

    EIN 394399802 · Headquarters: New Haven, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Civics First Inc

    EIN 060998367 · Headquarters: Kensington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Civics Institute

    EIN 880787054 · Headquarters: Meriden, CT, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. Civil Air Patrol

    EIN 581775581 · Headquarters: Danielson, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  45. Civil Air Patrol Flying Association Inc

    EIN 800510254 · Headquarters: BRANFORD, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Civil Service Employees Association

    EIN 270379931 · Headquarters: New Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Civil Service Employees Association

    EIN 412675512 · Headquarters: New Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Civitan Club of Middletown

    EIN 237136308 · Headquarters: MIDDLETOWN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Civitan International

    EIN 060000481 · Headquarters: Windsor, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Civitan International

    EIN 066069639 · Headquarters: Watertown, CT, US · Human Services · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Civitan International

    EIN 237306521 · Headquarters: Wethersfield, CT, US · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  52. Cja Foundation

    EIN 993311003 · Headquarters: WEST HARTFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Cjk Foundation Inc

    EIN 831891094 · Headquarters: CHESHIRE, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  54. Cjr Fund Inc

    EIN 061265380 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Cjs Fund

    EIN 208714011 · Headquarters: new britain, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  56. Claire & Marie Schifellite Foundation

    EIN 060956961 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. Claire & Maurits Edersheim Foundation

    EIN 136075353 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  58. Claire & Randy Salvatore Charitable Trust

    EIN 476841457 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  59. Claire & Randy Salvatore Pooled Common Fund

    EIN 823420686 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  60. Claire L Helsing Foundation C/o Wofsey Rosen Kweskin & Kuriansky

    EIN 471865899 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  61. Clam Shell Quilters

    EIN 061315122 · Headquarters: Waterford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Clan Donnachaidh Society of New England Inc

    EIN 222849105 · Headquarters: Danielson, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Clara M Robinson Foundation Inc

    EIN 831351790 · Headquarters: Manchester, CT, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Clare Nsenga Foundation

    EIN 061590386 · Headquarters: Colchester, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Clarence P Bradley Society Inc

    EIN 202332057 · Headquarters: Meriden, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Clarity Center of Connecticut Inc

    EIN 331120596 · Headquarters: Higganum, CT, US · Human Services · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  67. Clark Commandery Association of New Haven Commandery 2

    EIN 900360077 · Headquarters: West Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Clark Initiative Inc

    EIN 874224991 · Headquarters: MILFORD, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Clark Lane Middle School Parent Teacher Organization

    EIN 471957179 · Headquarters: Waterford, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  70. Claro Inc

    EIN 412219393 · Headquarters: HARTFORD, CT, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Clasp Homes Inc

    EIN 061074055 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Class of 1965 of Smith College

    EIN 953690322 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Class of 1997-Malden Highschool

    EIN 141875879 · Headquarters: Glastonbury, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Classes 4 Classes Inc C/o Rolleri & Sheppard Cpas Llp

    EIN 461894587 · Headquarters: FAIRFIELD, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Classical Association of Connecticut Inc

    EIN 061159856 · Headquarters: South Windsor, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Classical Judo Institute Inc

    EIN 383823507 · Headquarters: Stamford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Classical Magnet Music Booster Club Inc

    EIN 472763821 · Headquarters: Harford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  78. Classical Thespians Booster Club

    EIN 271969889 · Headquarters: SOUTHINGTON, CT, US · Education · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  79. Claws N Paws Rehabilitation Center

    EIN 842220665 · Headquarters: New Britain, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Clay Arsenal Community Development Corp

    EIN 933448444 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Claytors Ministry of Prayer and Deliverance Inc

    EIN 061018855 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. Clean Energy Clean Environment

    EIN 050611702 · Headquarters: New Hartford, CT, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  83. Cleanbirthorg

    EIN 462495953 · Headquarters: Westbrook, CT, US · Health Care · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  84. Cleanpeace Inc

    EIN 300326233 · Headquarters: Bridgeport, CT, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  85. Clear Nexus

    EIN 831975350 · Headquarters: Manchester, CT, USA · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  86. Clearwater Initiative Corporation

    EIN 261274724 · Headquarters: NEW HAVEN, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  87. Cleats for Dreams Inc

    EIN 474244640 · Headquarters: Ashford, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Clement Ministries

    EIN 844205969 · Headquarters: East Granby, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Clementina Arts Foundation Inc

    EIN 822760816 · Headquarters: Redding, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. CLEMENTINE LOCKWOOD PETERSON FOUNDATION C/o Cummings & Lockwood (HST III)

    EIN 066377136 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Clemons Productions Inc Aka That's the Spirit Productions

    EIN 133025846 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  92. Cler Foundation Erin K Rossitto Co-trustee

    EIN 412220148 · Headquarters: FAIRFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Cles Pto Corp

    EIN 333355154 · Headquarters: Brookfield, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Cleve Gray Foundation

    EIN 204701981 · Headquarters: LAKEVILLE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  95. CLICC Inc

    EIN 844647186 · Headquarters: New Haven, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Click Inc

    EIN 453938472 · Headquarters: WILLIMANTIC, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Click It for Cassie Inc

    EIN 452969649 · Headquarters: Darien, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Click to Begin

    EIN 010900302 · Headquarters: Westport, CT, US · Youth Development · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  99. Clifford Beers Community Care Center

    EIN 060646757 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Clifford Beers Community Health Partners Inc

    EIN 853627666 · Headquarters: HAMDEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

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