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. United Electrical Radio & Machine Workers of America Ue Local 222-90

    EIN 465652639 · Headquarters: Berlin, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  2. United Electrical Radio & Machine Workers of American Ue Local 222

    EIN 651207858 · Headquarters: Coventry, CT, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  3. United Electrical Radio and Machine Worker of America

    EIN 010587247 · Headquarters: East Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  4. United Electrical Radio and Machine Worker of America

    EIN 061470053 · Headquarters: East Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. United Electrical Radio and Machine Worker of America

    EIN 900584772 · Headquarters: Windsor Locks, CT, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  6. United Electrical Radio and Machine Worker of America

    EIN 900584830 · Headquarters: yalesville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. United Electrical Radio and Machine Worker of America

    EIN 900599490 · Headquarters: Windsor Locks, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. United Electrical Radio and Machine Workers of America

    EIN 020768687 · Headquarters: Cromwell, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  9. United Electrical Radio and Machine Workers of America

    EIN 020795943 · Headquarters: Shelton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  10. United Electrical Radio and Machine Workers of America

    EIN 030524166 · Headquarters: Wallingford, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. United Electrical Radio and Machine Workers of America

    EIN 060452576 · Headquarters: Groton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  12. United Electrical Radio and Machine Workers of America

    EIN 060949665 · Headquarters: milford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  13. United Electrical Radio and Machine Workers of America

    EIN 061086341 · Headquarters: New Haven, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. United Electrical Radio and Machine Workers of America

    EIN 061135992 · Headquarters: vernon, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. United Electrical Radio and Machine Workers of America

    EIN 061380808 · Headquarters: Suffield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  16. United Electrical Radio and Machine Workers of America

    EIN 061421129 · Headquarters: Simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. United Electrical Radio and Machine Workers of America

    EIN 061437109 · Headquarters: Canton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. United Electrical Radio and Machine Workers of America

    EIN 061487105 · Headquarters: berlin, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  19. United Electrical Radio and Machine Workers of America

    EIN 061525079 · Headquarters: North Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  20. United Electrical Radio and Machine Workers of America

    EIN 161729061 · Headquarters: New Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  21. United Electrical Radio and Machine Workers of America

    EIN 202219730 · Headquarters: Trumbull, CT, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. United Electrical Radio and Machine Workers of America

    EIN 272540902 · Headquarters: New Britain, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. United Electrical Radio and Machine Workers of America

    EIN 320262994 · Headquarters: Wolcott, CT, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  24. United Electrical Radio and Machine Workers of America

    EIN 392074248 · Headquarters: Avon, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. United Electrical Radio and Machine Workers of America

    EIN 460694983 · Headquarters: Willington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  26. United Electrical Radio and Machine Workers of America

    EIN 460844981 · Headquarters: Stafford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. United Electrical Radio and Machine Workers of America

    EIN 460854794 · Headquarters: Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. United Electrical Radio and Machine Workers of America

    EIN 510462470 · Headquarters: Derby, CT, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  29. United Electrical Radio and Machine Workers of America

    EIN 562579807 · Headquarters: STONINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. United Electrical Radio and Machine Workers of America

    EIN 753260077 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. United Electrical Radio and Machine Workers of America

    EIN 841677318 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  32. United Electrical Radio and Machine Workers of America

    EIN 900584767 · Headquarters: New Fairfield, CT, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  33. United Electrical Radio and Machine Workers of America

    EIN 900585234 · Headquarters: Tolland, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. United Electrical Radio and Machine Workers of America

    EIN 900585290 · Headquarters: Shelton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  35. United Electrical Radio and Machine Workers of America

    EIN 900601915 · Headquarters: Yalesville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. United Electrical Radio and Machine Workers of America

    EIN 900614285 · Headquarters: Wallingford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. United Electrical Radio and Machine Workers of America

    EIN 900652836 · Headquarters: Yalesville CT, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. United Electrical Radio and Machine Workers of America

    EIN 900675428 · Headquarters: Trumbull, CT, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. United Ewe Association of Connecticut Inc

    EIN 800627293 · Headquarters: NEWINGTON, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. United Faith Center for Children Inc

    EIN 273747577 · Headquarters: Hamden, CT, US · Religion Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  41. United Fiduciary Institute

    EIN 311446566 · Headquarters: Pomfret, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. United Food & Commercial Workers Local 371

    EIN 060605499 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. United Food & Commercial Workers Union

    EIN 060721822 · Headquarters: Farmington, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. United Food and Commercial Workers International Union

    EIN 060728166 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. United Food and Commerical Workers International Union

    EIN 066069129 · Headquarters: Newtown, CT, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  46. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617416 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. United Haitian American Society

    EIN 010613380 · Headquarters: Norwalk, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. United Islamic Trust, South Windsor, CT

    EIN 611915231 · Headquarters: South Windsor, CT, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990

  49. United Jewish Federation Stamford New Canaan Darien Inc

    EIN 060923384 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. United Khmer Foundation

    EIN 472849633 · Headquarters: Danbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  51. United Korean Martial Arts Inc

    EIN 832337462 · Headquarters: Manchester, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. United Methodist Church of Resurrection Inc

    EIN 863786791 · Headquarters: Bridgeport, CT, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  53. United Methodist Home of Sharon Inc

    EIN 061607026 · Headquarters: SHELTON, CT, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  54. United Methodist Homes Inc

    EIN 060987394 · Headquarters: SHELTON, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  55. United Muslim Masjid of CT

    EIN 061359565 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  56. United Nations Association of the USA Inc

    EIN 237181929 · Headquarters: Greens Farms, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  57. United Nations Association of the USA Inc

    EIN 900059317 · Headquarters: Kent, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  58. United Nations Committee of New Canaan

    EIN 061630469 · Headquarters: NEW CANAAN, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  59. United Nations Football Club Inc

    EIN 270206386 · Headquarters: Stamford, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. United Nomads Swim Team

    EIN 472344001 · Headquarters: Colchester, CT, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  61. United Nurses and Allied Professionals

    EIN 061569824 · Headquarters: PUTNAM, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. United Ostomy Association

    EIN 060947132 · Headquarters: Wallingford, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  63. United Ostomy Association

    EIN 942902087 · Headquarters: East Hartford, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  64. United Ostomy Association of America Inc

    EIN 060984870 · Headquarters: GROTON, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  65. United Ostomy Association of America Inc

    EIN 320160316 · Headquarters: Wallingford, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  66. United Ostomy Association of America Inc

    EIN 900720270 · Headquarters: New Milford, CT, US · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. United Ostomy Association of America Inc

    EIN 942695982 · Headquarters: Southington, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  68. United Ostomy Association of America Inc

    EIN 942902156 · Headquarters: Manchester, CT, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. United Ostomy Associations of America Inc

    EIN 800543751 · Headquarters: Groton, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  70. United Public Service Employees Union Msa Local 424 Unit 97

    EIN 820902482 · Headquarters: Milford, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. United Public Service Employees Union Upseu Local 424 Unit 78

    EIN 383931844 · Headquarters: Torrington, CT, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. United Sangha Council

    EIN 823953815 · Headquarters: ANDOVER, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. United Seniors for America Inc

    EIN 273633259 · Headquarters: WEST HAVEN, CT, US · Public & Societal Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  74. United Services Inc

    EIN 060804423 · Headquarters: DAYVILLE, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. United Social & Mental Health Resources Inc

    EIN 222896309 · Headquarters: DAYVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. United Social & Mental Health Services Inc

    EIN 222911611 · Headquarters: DAYVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. United Souls for Women Inc

    EIN 844862177 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. United States Aikido Federation

    EIN 133015810 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. United States Amateur Boxing Inc

    EIN 061322533 · Headquarters: East Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. United States America Plowing Organization

    EIN 416042586 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. United States Australian Shepherd Foundation

    EIN 202330701 · Headquarters: Putnam, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. United States Bowling Congress Connecticut State USBC Association

    EIN 204852973 · Headquarters: West Haven, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. United States Bowling Congress Inc

    EIN 030594871 · Headquarters: Gales Ferry, CT, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  84. United States Bowling Congress Inc

    EIN 204827013 · Headquarters: Uncasville, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  85. United States Bowling Congress Inc

    EIN 204879855 · Headquarters: Gales Ferry, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  86. United States Bowling Congress Inc

    EIN 510565336 · Headquarters: Chaplin, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. United States Bowling Congress Inc

    EIN 593832964 · Headquarters: DANBURY, CT, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  88. United States Bowling Congress Inc

    EIN 841711093 · Headquarters: Stratford, CT, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  89. United States Coast Guard Academy Parents Association Inc

    EIN 364881785 · Headquarters: NEW LONDON, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. United States Coast Guard Academy Sponsored Programs and Research Inc

    EIN 824741058 · Headquarters: NEW LONDON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. United States Corporate Track Association

    EIN 770114689 · Headquarters: west simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. United States Diving Inc

    EIN 815018448 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. United States Fencing Association

    EIN 061545900 · Headquarters: Danbury, CT, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. United States Green Parking Co

    EIN 272760767 · Headquarters: NEW HAVEN, CT, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990

  95. United States Junior Chamber of Commerce

    EIN 061235215 · Headquarters: DANBURY, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  96. United States Junior Chamber of Commerce

    EIN 061475912 · Headquarters: GREENWICH, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  97. United States Junior Chamber of Commerce

    EIN 222576926 · Headquarters: Bethel, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  98. United States Junior Chamber of Commerce

    EIN 742568306 · Headquarters: Windsor, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  99. United States Lightweight Rowing Incorporated

    EIN 460546923 · Headquarters: Weston, CT, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  100. United States Masters Swimming Inc

    EIN 311131707 · Headquarters: Weston, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

First page and all pages