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. Knights of Columbus

    EIN 831121777 · Headquarters: North Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Knights of Columbus

    EIN 832582723 · Headquarters: NEW HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Knights of Columbus

    EIN 833309992 · Headquarters: WESTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Knights of Columbus

    EIN 842227962 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Knights of Columbus

    EIN 844239937 · Headquarters: Darien, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Knights of Columbus

    EIN 851924367 · Headquarters: Hebron, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Knights of Columbus

    EIN 872763273 · Headquarters: Ashford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Knights of Columbus

    EIN 882959089 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Knights of Columbus

    EIN 900415029 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Knights of Columbus

    EIN 900421615 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Knights of Columbus

    EIN 900532030 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Knights of Columbus

    EIN 900544417 · Headquarters: Torrington, CT, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  13. Knights of Columbus

    EIN 900577252 · Headquarters: East Hartford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  14. Knights of Columbus

    EIN 900624310 · Headquarters: Hartford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  15. Knights of Columbus

    EIN 900665535 · Headquarters: West hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Knights of Columbus

    EIN 900825698 · Headquarters: Wolcott, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. Knights of Columbus

    EIN 900914592 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Knights of Columbus

    EIN 912002193 · Headquarters: Branford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  19. Knights of Columbus

    EIN 931467856 · Headquarters: New Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Knights of Columbus 2616 Father Coleman Council

    EIN 237142938 · Headquarters: FAIRFIELD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Knights of Columbus 3594 St Pius X Council

    EIN 222804016 · Headquarters: WATERTOWN, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Knights of Columbus All Hallows 270

    EIN 237142537 · Headquarters: MOOSUP, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Knights of Columbus Charitable Fund

    EIN 815466677 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Knights of Columbus Charities Inc

    EIN 237227608 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Knights of Columbus Charities USA Inc

    EIN 412140273 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Knights of Columbus Council 3733

    EIN 237541373 · Headquarters: NORTH HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Knights of Columbus Ct State Council

    EIN 060850946 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Knights of Columbus Father Reagan Council 3300

    EIN 060773430 · Headquarters: north branford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  29. Knights of Columbus Lafayette Assembly 109

    EIN 237129091 · Headquarters: STAMFORD, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Knights of Columbus Mcgivney Council 29

    EIN 060836115 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Knights of Columbus Msgr Greylish Council 3675 Building Association

    EIN 060777118 · Headquarters: New Britain, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Knights of Columbus No 2370 St James

    EIN 060847996 · Headquarters: Stratford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Knights of Columbus Orinoco Council #39

    EIN 237142098 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Knights of Columbus St Anne Council 6119

    EIN 237541403 · Headquarters: WEST HARTFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  35. Knights of Columbus St Augustine Council 41

    EIN 237107425 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Knights of Columbus the Rev Monsignor Patrick Mcgivney

    EIN 900245409 · Headquarters: Bridgeport, CT, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Knights of Columbus Tinto Council 47

    EIN 061507314 · Headquarters: Milford, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  38. Knights of Peter Claver

    EIN 800686247 · Headquarters: South Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Knights of Peter Claver

    EIN 900662589 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Knights of Peter Claver Ladies Auxiliary

    EIN 352445044 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Knights of Pythias - John Hay Lodge #61

    EIN 061349407 · Headquarters: WEST HARTFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  42. Knights of Rizal

    EIN 814154792 · Headquarters: Stamford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  43. Knights of St Patrick Inc

    EIN 060416520 · Headquarters: NEW HAVEN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Knights of the York Cross of Honour Convent General

    EIN 237532669 · Headquarters: Stratford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Knights of Vartan Inc

    EIN 237616087 · Headquarters: EAST HARTFORD, CT, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  46. Knights Templar of the United States of America

    EIN 061308684 · Headquarters: PRESTON, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. Knights Templar of the United States of America

    EIN 066046554 · Headquarters: Brookfield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  48. Knights Templar of the United States of America

    EIN 066046788 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Knights Templar of the United States of America

    EIN 066051084 · Headquarters: Waterbury, CT, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  50. Knights Templar of the United States of America

    EIN 066053050 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Knights Templar of the United States of America

    EIN 237111502 · Headquarters: Stratford, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Knights Templar of the United States of America

    EIN 237121558 · Headquarters: East Hartford, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Knights Templar of the United States of America

    EIN 237135716 · Headquarters: Coventry, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Knights Templar of the United States of America

    EIN 571170721 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Knights Trust Inc

    EIN 061416549 · Headquarters: NEW HAVEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Knitting Is Love

    EIN 924012857 · Headquarters: Suffield, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  57. Know Thy Neighbor Corp

    EIN 931580041 · Headquarters: Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Know Your Beautiful Women Empowerment

    EIN 843836522 · Headquarters: Avon, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Knownpreneurs Inc

    EIN 923563894 · Headquarters: Guilford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Knowtern

    EIN 331283619 · Headquarters: West Hartford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Knox Inc

    EIN 060985421 · Headquarters: HARTFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Kobe Henro Inc

    EIN 873787089 · Headquarters: Guilford, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Kodiakcare Corporation

    EIN 843820590 · Headquarters: Simsbury, CT, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Kodis Korner

    EIN 920881833 · Headquarters: Colchester, CT, US · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Koforidua SeTech Old Student Association - USA

    EIN 813551991 · Headquarters: West Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Kog Family Outreach Inc

    EIN 994723334 · Headquarters: Manchester, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Kohn-joseloff Foundation Incorporated

    EIN 136062846 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  68. Koi Organisation International Inc

    EIN 800456087 · Headquarters: Rockfall, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Koinonia USA Inc

    EIN 991321477 · Headquarters: WETHERSFIELD, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Kol Haverim Cemetery Association Inc

    EIN 061528966 · Headquarters: Glastonbury, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Kolibri Ukrainian School of Dance

    EIN 992560748 · Headquarters: Oxford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Kollel of Central Connecticut Inc

    EIN 263626023 · Headquarters: WATERBURY, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Kollol Tifereth Zkeinim Levi Yitzchak Vchocmas Noshim Inc

    EIN 061518595 · Headquarters: New Haven, CT, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  74. Komban Community Center

    EIN 990721139 · Headquarters: MILFORD, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Kombit Corporation

    EIN 871024186 · Headquarters: Stratford, CT, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  76. Kongscut Land Trust Inc

    EIN 061031643 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Kontogouris-djokic Foundation

    EIN 100001906 · Headquarters: WESTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  78. Koproski Family Foundation C/o Alexander Koproski Trustee

    EIN 226561293 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  79. Korea-america Economic Association Inc

    EIN 251500080 · Headquarters: STORRS, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Korean American Charity Foundation Inc

    EIN 061602816 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  81. Korean American Nutritionists Assoc Iation

    EIN 412664638 · Headquarters: Storr, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Korean-american Society of Ct Inc

    EIN 510201369 · Headquarters: HAMDEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Koren Foundation Inc

    EIN 061534165 · Headquarters: SOUTHPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Korok Cultural Association

    EIN 993096251 · Headquarters: Westport, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Kosciuszko Inc

    EIN 993691257 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Koscuiszko Historical Society Inc

    EIN 222811460 · Headquarters: Ansonia, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  87. Kostin Ruffkess Foundation Inc

    EIN 264055749 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. Kozlowski Family Foundation C/o Cheryl M Kozlowski

    EIN 020500439 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  89. Kpcla Ladies of Grace Divison 4Th Degree Sister Dolores Harrall

    EIN 472143125 · Headquarters: HARTFORD, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Kpmg (Stamford) Foundation Inc

    EIN 061274772 · Headquarters: STAMFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  91. Krapek Family Charitable Foundation

    EIN 266286973 · Headquarters: AVON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. Krasnow Family Foundation

    EIN 364467697 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  93. Kraus Family Foundation

    EIN 300139549 · Headquarters: FARMINGTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. Krayany Corporation

    EIN 043767963 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  95. Kreitler Foundation Inc Dba the Hobart and Sally Kreitler Foundinc

    EIN 061311676 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. Kristin & Michael Reed Family Foundation Inc

    EIN 203970201 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  97. Kristin M Schleiter Als Foundation Inc

    EIN 822661051 · Headquarters: Fairfield, CT, US · Medical Research · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  98. Krusinski Kares

    EIN 871832048 · Headquarters: Milford, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. KT Murphy PTO

    EIN 060730339 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Kuhn Employment Opportunities Inc

    EIN 060770819 · Headquarters: MERIDEN, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

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