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. Southeastern Area Lacrosse Inc

    EIN 061419143 · Headquarters: North Stonington, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Southeastern Connecticut 16-18 Babe Ruth League Inc

    EIN 061563371 · Headquarters: WATERFORD, CT, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  3. Southeastern Connecticut Amateur Radio Society

    EIN 882444792 · Headquarters: Gales Ferry, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Southeastern Connecticut Community Land Trust Inc

    EIN 831824983 · Headquarters: VOLUNTOWN, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990

  5. Southeastern Connecticut Community Orchestra Inc

    EIN 883550567 · Headquarters: Waterford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Southeastern Connecticut Enterprise Region Corp

    EIN 222973506 · Headquarters: GROTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Southeastern Connecticut Housing Alliance Inc

    EIN 371531162 · Headquarters: NORWICH, CT, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Southeastern Connecticut Mustang Club

    EIN 061555944 · Headquarters: OAKDALE, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Southeastern Connecticut Organization for Racial Equity

    EIN 853033379 · Headquarters: Niantic, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. Southeastern Connecticut Radio Amateur Mobile Systems

    EIN 061488492 · Headquarters: Waterford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Southeastern Connecticut Stem Education Inc

    EIN 833658114 · Headquarters: Ledyard, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Southeastern Connecticut Television Inc

    EIN 203058967 · Headquarters: GROTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Southeastern Connecticut Womens Network

    EIN 061441214 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Southeastern Council on Alcoholism and Drug Dependence Inc

    EIN 060860926 · Headquarters: NEW LONDON, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Southeastern CT Chinese School

    EIN 061475732 · Headquarters: East Lyme, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Southeastern Ct Robotics Inc

    EIN 844925069 · Headquarters: GROTON, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Southeastern Ct Youth Hockey Inc

    EIN 061030159 · Headquarters: OAKDALE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Southeastern New England Marine Educators

    EIN 300394292 · Headquarters: West Mystic, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Southeastern Regional Action Council Inc

    EIN 061308487 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Southern Alabama Family Theatre Company

    EIN 273709911 · Headquarters: Torrington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. Southern Berkshire Golden Retriever Club Inc

    EIN 061417974 · Headquarters: West Suffield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Southern California Chapter American Academy Psychiatry & Law

    EIN 223358048 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Southern Conn Chapter of the Society of Chartered Property And

    EIN 237161781 · Headquarters: Brookfield, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  24. Southern Connecticut Agility Team Inc

    EIN 731704977 · Headquarters: Shelton, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Southern Connecticut Alliance for Inner- City Tennis and Education Inc

    EIN 451541516 · Headquarters: DARIEN, CT, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  26. Southern Connecticut Ancestry Network Inc

    EIN 300398299 · Headquarters: Hamden, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  27. Southern Connecticut Animal Trust Inc

    EIN 061526879 · Headquarters: Stamford, CT, US · Animal Related · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  28. Southern Connecticut Antique Bottle and Glass Collectors Assc Inc

    EIN 061625365 · Headquarters: Orange, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Southern Connecticut Camerata

    EIN 061141661 · Headquarters: Norwalk, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Southern Connecticut Chinese School

    EIN 204180579 · Headquarters: NEW HAVEN, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Southern Connecticut Christian

    EIN 061091018 · Headquarters: FAIRFIELD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Southern Connecticut Conference

    EIN 061405383 · Headquarters: Cheshire, CT, USA · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  33. Southern Connecticut Cycle Club Inc

    EIN 061268190 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Southern Connecticut Diamond Club Inc

    EIN 454488378 · Headquarters: Hamden, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Southern Connecticut District Roofers Joint Apprenticeship Committee Fund

    EIN 061086784 · Headquarters: NORTH HAVEN, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Southern Connecticut Gas Company Post- Retirement Medical Plan Trust for Union

    EIN 223341175 · Headquarters: ORANGE, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990

  37. Southern Connecticut Health System Properties Inc

    EIN 061297708 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. Southern Connecticut Ibew

    EIN 060969912 · Headquarters: WALLINGFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990

  39. Southern Connecticut Open Source User Group

    EIN 412034908 · Headquarters: NORTH BRANFORD, CT, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  40. Southern Connecticut Polymer Clay Guild Inc

    EIN 061549221 · Headquarters: Brookfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Southern Connecticut Ski Council Inc

    EIN 833396450 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  42. Southern Connecticut Soccer Officials Association Inc

    EIN 262602577 · Headquarters: Bridgeport, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Southern Connecticut State University Alumni Association Inc

    EIN 237213073 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Southern Connecticut State University Foundation Inc

    EIN 237208882 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Southern Connecticut Storm Special

    EIN 260585647 · Headquarters: TRUMBULL, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Southern Connecticut Synchronized Skating Inc

    EIN 852832107 · Headquarters: STAMFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Southern Ct Building Owners and Managers Association Inc

    EIN 222610894 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Southern Ct Isc2 Chapter

    EIN 475048819 · Headquarters: northford, CT, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Southern Ct Youth Hockey Inc

    EIN 061201158 · Headquarters: MILFORD, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Southern Fairfield County Retired Teachers Association

    EIN 851188889 · Headquarters: Norwalk, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Southern Fairfield County Womens Council of Realtors

    EIN 061543732 · Headquarters: FAIRFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  52. Southern New England Adult Soccer Inc

    EIN 333612680 · Headquarters: ANDOVER, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Southern New England Alumnae Panhellenic

    EIN 461244265 · Headquarters: Wallingford, CT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  54. Southern New England Branch of the American Association For

    EIN 061265072 · Headquarters: groton, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Southern New England Chapter of the Antique Classic Boat Society Inc

    EIN 810599669 · Headquarters: Westbrook, CT, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. Southern New England Consortium of Partnership 2000 Incorporated

    EIN 201475524 · Headquarters: West Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Southern New England Floor Covering Association

    EIN 472996252 · Headquarters: Hartford, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  58. Southern New England Friendship Softball League

    EIN 205890410 · Headquarters: Milford, CT, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  59. Southern New England Friendship Softball League Inc

    EIN 812176269 · Headquarters: Middletown, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Southern New England Horsemens Asso Ciation

    EIN 413763525 · Headquarters: Glastonbury, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Southern New England Law Librarians Association

    EIN 060979807 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Southern New England Navhda Chapter Inc

    EIN 061605212 · Headquarters: STAFFORD SPRINGS, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Southern New England Saddlebred Association

    EIN 461961345 · Headquarters: East Hampton, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  64. Southern New England Womens Golf Association

    EIN 223205902 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Southern New England Youth Football Conference

    EIN 134234295 · Headquarters: Lisbon, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Southern New London County Independent Football Club

    EIN 853260418 · Headquarters: GROTON, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Southern Society for Pediatric Research Inc

    EIN 596182249 · Headquarters: S Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Southfield Children's Center

    EIN 060906671 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Southford Cemetery Assoc

    EIN 061344014 · Headquarters: OXFORD, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Southford Falls Quilters Llc

    EIN 205367031 · Headquarters: Seymour, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Southington Administrators Association Inc

    EIN 462689845 · Headquarters: Southington, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Southington Amateur Radio Assoc Inc

    EIN 061055741 · Headquarters: Southington, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Southington Arts and Crafts Association

    EIN 222572877 · Headquarters: Plantsville, CT, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. Southington Arts Council Inc

    EIN 061072230 · Headquarters: SOUTHINGTON, CT, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  75. Southington Band Backers Club Inc

    EIN 061095045 · Headquarters: PLANTSVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Southington Cadets

    EIN 331404607 · Headquarters: Southington, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Southington Clerical and Food Service Employees United Nipseu

    EIN 850585575 · Headquarters: SOUTHINGTON, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Southington Community Cultural Arts Inc

    EIN 453617168 · Headquarters: SOUTHINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Southington Community Theatre Inc

    EIN 066065713 · Headquarters: Southington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Southington Dog Park Association Inc

    EIN 205887904 · Headquarters: Plantsville, CT, US · Animal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  81. Southington Education Foundation Inc

    EIN 943480746 · Headquarters: Southington, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Southington Festival Choir Inc

    EIN 060964217 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Southington Girls Softball League Inc

    EIN 222704114 · Headquarters: SOUTHINGTON, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Southington Gridiron Club

    EIN 264773840 · Headquarters: SOUTHINGTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Southington High Class of 1972

    EIN 061084103 · Headquarters: Farmington, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  86. Southington High School Wall of Honor Foundation Inc

    EIN 822125751 · Headquarters: Plantsville, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Southington Historical Society Inc

    EIN 066080963 · Headquarters: Southington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Southington Italian American Festival C/o Michael Fasulo

    EIN 453759645 · Headquarters: PLANTSVILLE, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Southington Knights Cheerleading Booster Club

    EIN 270343757 · Headquarters: Southington, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Southington Lacrosse Association

    EIN 813004508 · Headquarters: SOUTHINGTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Southington Land Conservation Trust Inc

    EIN 237285599 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Southington Lions Foundation for Giving Inc

    EIN 061593432 · Headquarters: SOUTHINGTON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Southington Manna Fund Inc

    EIN 300230823 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Southington Masonic Temple Corporation

    EIN 061025895 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Southington Middle School Athletics Association

    EIN 822544077 · Headquarters: Southington, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Southington Midget Football League Inc

    EIN 061273966 · Headquarters: SOUTHINGTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Southington Outsider Inc

    EIN 393333991 · Headquarters: Southington, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Southington Police Benevolent Assoc

    EIN 061218140 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Southington Robotics and Technology Education Association Inc

    EIN 822567002 · Headquarters: Southington, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Southington Rotary Trust

    EIN 061063364 · Headquarters: Southington, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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