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. Sound Shore Foundation

    EIN 222777141 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  2. Sound Shore Pickleball League Inc

    EIN 992394207 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sound Steppers Square Dance Club Inc

    EIN 061026805 · Headquarters: Westbrook, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Sound View Beach Association Inc

    EIN 061349280 · Headquarters: Old Lyme, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Sound View Community Media Inc

    EIN 061539221 · Headquarters: STRATFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Sounding Board Inc

    EIN 061009215 · Headquarters: WEST HARTFORD, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Soundkeeper Inc C/o Save the Sound

    EIN 061224565 · Headquarters: NEW HAVEN, CT, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990

  8. Soundsurfer Foundation Inc

    EIN 471441457 · Headquarters: FAIRFIELD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. Soundview Empowerment Alliance Inc

    EIN 881027401 · Headquarters: Westport, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Soundwaters Inc

    EIN 061263947 · Headquarters: STAMFORD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Source Charitable Tr

    EIN 146285566 · Headquarters: Wilton, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  12. South Asia Pure Water Initiative Inc

    EIN 203257989 · Headquarters: Wallingford, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. South Asian Bar Association of Connecticut Inc

    EIN 201540303 · Headquarters: Wethersfield, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. South Asian Community of Greater New Haven

    EIN 393167998 · Headquarters: Woodbridge, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. South Asian Women Physicians Society Corp

    EIN 392705914 · Headquarters: Fairfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. South Britain Cemetary Association

    EIN 066035438 · Headquarters: SOUTHBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. South Burying Ground Association of Kensington Inc

    EIN 066058947 · Headquarters: Kensington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. South Cemetery Association of West Woodstock Inc

    EIN 237204764 · Headquarters: Woodstock, CT, US · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  19. South Central Chiefs of Police Asso

    EIN 061048839 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. South Central CT Regional Economic Dev Corp

    EIN 061455545 · Headquarters: New Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. South Central Ct Substance Abuse Council Inc

    EIN 061348152 · Headquarters: WALLIGFORD, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2017 · Primary form: IRS Form 990

  22. South Central Premier C/o Nikki Kelly

    EIN 421589783 · Headquarters: MERIDEN, CT, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990

  23. South City Organization Community Trust Fund Inc

    EIN 061626289 · Headquarters: NORWALK, CT, US · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. South Dakota Frg

    EIN 812014115 · Headquarters: Griswold, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. South East Connecticut Community Center of the Blind Inc

    EIN 060945527 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. South East Connecticut Skin Divers

    EIN 810705089 · Headquarters: UNCASVILLE, CT, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  27. South End Burying Ground Association

    EIN 066037838 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. South End Community Council of Stratford Inc

    EIN 222553838 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. South End Pto

    EIN 060978462 · Headquarters: PLANTSVILLE, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. South End Volunteer Fire Department

    EIN 061596811 · Headquarters: New Hartford, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. South Fairfield Association for the Education of Young Children

    EIN 061397087 · Headquarters: Norwalk, CT, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  32. South Glastonbury Public Library Association Inc

    EIN 237365075 · Headquarters: South Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. South Kensington Fire Department Inc

    EIN 066076348 · Headquarters: KENSINGTON, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. South Kent School Corporation

    EIN 060646906 · Headquarters: SOUTH KENT, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. South Meriden Festivals Inc

    EIN 814743826 · Headquarters: Meriden, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. South Meriden Volunteer Fire Department

    EIN 383825792 · Headquarters: Meriden, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. South Meriden Youth Baseball League Inc

    EIN 061135859 · Headquarters: MERIDEN, CT, USA · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  38. South Norwalk Boat Club Educational Foundation Inc

    EIN 204190295 · Headquarters: NORWALK, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. South Norwalk Boat Club Inc

    EIN 060542400 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  40. South Norwalk Community Center Inc

    EIN 060872692 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  41. South Norwalk Social Service Center Inc

    EIN 060987485 · Headquarters: Norwalk, CT, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  42. South Park Inn Inc

    EIN 061083735 · Headquarters: HARTFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. South School Parent Teacher Council

    EIN 061535096 · Headquarters: NEW CANAAN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. South Street Elementary School Pto

    EIN 873730017 · Headquarters: Danbury, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. South Windham Fire Department Inc

    EIN 066046428 · Headquarters: SOUTH WINDHAM, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. South Windsor Administratorsassociation Inc

    EIN 260317399 · Headquarters: South Windsor, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. South Windsor Alliance for Progress

    EIN 821274913 · Headquarters: South Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  48. South Windsor Ambulance Corps Inc

    EIN 061045810 · Headquarters: SOUTH WINDSOR, CT, USA · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990

  49. South Windsor Bobcats Boosters Inc

    EIN 274147342 · Headquarters: South Windsor, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. South Windsor Boys Lacrosse Inc

    EIN 270245702 · Headquarters: SOUTH WINDSOR, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. South Windsor Cemetery Association

    EIN 060769278 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. South Windsor Chamber of Commerce

    EIN 060896726 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. South Windsor Child Development Cen

    EIN 061078837 · Headquarters: SOUTH WINDSOR, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. South Windsor Community Band

    EIN 274108130 · Headquarters: SOUTH WINDSOR, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. South Windsor Community Chorus Inc

    EIN 030372743 · Headquarters: BROAD BROOK, CT, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. South Windsor Community Foundation Inc

    EIN 200820971 · Headquarters: SOUTH WINDSOR, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. South Windsor Connecticut Education Association

    EIN 237106757 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. South Windsor Ct Boys Travel Basketball Corp

    EIN 843584196 · Headquarters: SOUTH WINDSOR, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. South Windsor Cultural Arts Commission

    EIN 237195765 · Headquarters: South Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. South Windsor Girls Lacrosse Inc

    EIN 271225661 · Headquarters: SOUTH WINDSOR, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. South Windsor Girls Travel Basketball Incorporated

    EIN 842080876 · Headquarters: SOUTH WINDSOR, CT, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  62. South Windsor Haiti School Inc

    EIN 273958606 · Headquarters: SOUTH WINDSOR, CT, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  63. South Windsor Historical Society Inc

    EIN 237146776 · Headquarters: SOUTH WINDSOR, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. South Windsor Jaycees Foundation Inc

    EIN 272480548 · Headquarters: South Windsor, CT, US · Arts, Culture & Humanities · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  65. South Windsor Kennel Club Inc

    EIN 061331982 · Headquarters: AVON, CT, USA · Animal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  66. South Windsor Land Conservation Trust

    EIN 510204084 · Headquarters: EAST WINDSOR HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. South Windsor Lions Foundation Inc

    EIN 821808077 · Headquarters: South Windsor, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. South Windsor Little League Inc

    EIN 061279172 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. South Windsor Non-supervisor Professiona

    EIN 852834369 · Headquarters: SOUTH WINDSOR, CT, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. South Windsor Panthers Inc

    EIN 562458073 · Headquarters: South Windsor, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. South Windsor Police Union Inc

    EIN 821590927 · Headquarters: South Windsor, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. South Windsor Soccer Club Inc

    EIN 061204931 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. South Windsor Swim & Tennis Club Inc

    EIN 060888358 · Headquarters: SOUTH WINDSOR, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. South Windsor Wrestling Association Incorporated

    EIN 834092636 · Headquarters: SOUTH WINDSOR, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. South Windsor Youth Hockey Association

    EIN 222943703 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. South-west Conference Inc C/o Mark Berkowitzcommissioner

    EIN 061426554 · Headquarters: WESTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Southbury Affordable Housing Alliance Inc

    EIN 881479903 · Headquarters: Southbury, CT, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Southbury Ambulance Association Inc

    EIN 061237197 · Headquarters: SOUTHBURY, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Southbury Arts and Culture Alliance Inc

    EIN 334184324 · Headquarters: Southbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Southbury Business Association Inc

    EIN 061284511 · Headquarters: SOUTHBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  81. Southbury Elderly Housing Inc

    EIN 222515002 · Headquarters: SOUTHBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Southbury Fuel Bank Inc

    EIN 222487481 · Headquarters: Southbury, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Southbury Historical Society Inc

    EIN 061064312 · Headquarters: SOUTHBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Southbury Junior Womens Club Inc

    EIN 061634222 · Headquarters: SOUTHBURY, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Southbury Land Trust Inc

    EIN 060977326 · Headquarters: SOUTHBURY, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Southbury Lions Club Inc

    EIN 060688766 · Headquarters: Woodbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  87. Southbury Middlebury Aquatic Community Inc

    EIN 843961602 · Headquarters: Woodbury, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Southbury Middlebury Neighbors and Newcomers Club Inc

    EIN 061435931 · Headquarters: Middlebury, CT, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  89. Southbury Middlebury Scholarship Foundation

    EIN 222471012 · Headquarters: MIDDLEBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Southbury Needy Fund Inc Dba Southbury Helping Hands

    EIN 222704087 · Headquarters: SOUTHBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. Southbury Senior Alliance Inc

    EIN 880581292 · Headquarters: Naugatuck, CT, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  92. Southbury Soccer Club

    EIN 061219276 · Headquarters: SOUTHBURY, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Southbury Volunteer Firemen's Association Inc

    EIN 061301645 · Headquarters: SOUTHBURY, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Southbury-middlebury Youth and Family Services Inc

    EIN 061161004 · Headquarters: Woodbury, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  95. Southeast Asian Hill Tribes Survive Inc

    EIN 132709615 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Southeast Asian Mission Inc

    EIN 994069024 · Headquarters: Stamford, CT, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Southeast Connecticut Hall of Fame

    EIN 272306984 · Headquarters: Waterford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Southeast Connecticut World Affairs Council Inc

    EIN 061538875 · Headquarters: New London, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Southeast Elementary School Pto

    EIN 900667132 · Headquarters: Mansfield Center, CT, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  100. Southeast Soccer Club Corp

    EIN 272306962 · Headquarters: WATERFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

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