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. Willington Historical Society Incorporated

    EIN 237196503 · Headquarters: Willington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Willington Junior League Inc

    EIN 061478905 · Headquarters: Willington, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Willington Nursery Cooperative Inc

    EIN 060742497 · Headquarters: willington, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  4. Willington Public Library

    EIN 061015380 · Headquarters: Willington, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Willington Seniors Inc

    EIN 113772722 · Headquarters: Willington, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Willington Veterans Memorial Foundation

    EIN 882937890 · Headquarters: Willington, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Willow Arms Mutual Housing Association Inc

    EIN 061399543 · Headquarters: HARTFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Willowbrook Cemetery Association Inc

    EIN 522141941 · Headquarters: WESTPORT, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Willowitz Foundation

    EIN 843071070 · Headquarters: WEST SIMSBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Willows Foundation Inc

    EIN 830914064 · Headquarters: Mansfield Center, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Wills Way 5K Incorporated

    EIN 461187635 · Headquarters: Plainfield, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  12. Wilmot Wheeler Foundation Inc

    EIN 066039119 · Headquarters: SOUTHPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Wilson Cove Yacht Club Inc

    EIN 066063807 · Headquarters: ROWAYTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  14. Wilson Point Beach Incorporated

    EIN 060949298 · Headquarters: NORWALK, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  15. Wilsons Pride Inc

    EIN 113243041 · Headquarters: WINDSOR, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Wilton Arts Council Inc

    EIN 061004552 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  17. Wilton Athletic and Recreation Foundation Company

    EIN 824972167 · Headquarters: Wilton, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Wilton Baseball & Softball Assoc Inc

    EIN 061505951 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Wilton Basketball Association

    EIN 200960505 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Wilton Career Firefighters Fund Inc

    EIN 061312384 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Wilton Chamber of Commerce

    EIN 061304441 · Headquarters: Wilton, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Wilton Children's Theater

    EIN 061317306 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Wilton Commons Gp Inc

    EIN 452797586 · Headquarters: TRUMBULL, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Wilton Commons Inc

    EIN 200823043 · Headquarters: WILTON, CT, US · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  25. Wilton Community Assistance Fund Inc

    EIN 510194257 · Headquarters: WILTON, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Wilton Ct Rotary Club

    EIN 061207098 · Headquarters: WILTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Wilton Education Foundation Inc

    EIN 223252632 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Wilton Field Hockey Association

    EIN 331046644 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Wilton Football Boosters

    EIN 061044416 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  30. Wilton Garden Club

    EIN 066039718 · Headquarters: WILTON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Wilton Go Green Inc

    EIN 273814923 · Headquarters: Wilton, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Wilton High 35Th Reunion

    EIN 383839946 · Headquarters: WILTON, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  33. Wilton High School Hockey Club

    EIN 455495664 · Headquarters: Wilton, CT, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Wilton High School Music Boosters Inc

    EIN 800678916 · Headquarters: Wilton, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Wilton High School PTSA CO Mark Shaner

    EIN 060994422 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Wilton Historical Society Inc

    EIN 066038757 · Headquarters: WILTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Wilton Hockey Booster Association Inc

    EIN 263561834 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Wilton Kiwanis Foundation Inc

    EIN 222921402 · Headquarters: WILTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Wilton Lacrosse Association

    EIN 061100554 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Wilton Land Conservation Trust

    EIN 066070618 · Headquarters: Wilton, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Wilton Library Association Inc

    EIN 060662194 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Wilton Little League Inc

    EIN 237048847 · Headquarters: WILTON, CT, USA · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990

  43. Wilton Newcomer's Club

    EIN 060977718 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  44. Wilton Playshop Inc

    EIN 066057176 · Headquarters: Wilton, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Wilton Police Benevolent Associatio

    EIN 061209228 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Wilton Police Explorers Post 58

    EIN 061252491 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Wilton Police Fund

    EIN 061033755 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Wilton Police Union Local 1429

    EIN 061076845 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Wilton Pride Inc

    EIN 921461371 · Headquarters: Wilton, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Wilton Riding Club Inc

    EIN 060592525 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. Wilton Rocks for Food

    EIN 853877691 · Headquarters: wilton, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Wilton Rotary Charitable Foundation Inc

    EIN 882524948 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Wilton Singers Incorporated

    EIN 222571199 · Headquarters: WILTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Wilton Soccer Association

    EIN 060972628 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Wilton Softball Inc

    EIN 991960421 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Wilton Sports Council

    EIN 900405511 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  57. Wilton Student Financial Aid Committee Inc

    EIN 237089754 · Headquarters: WILTON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Wilton Swag Inc

    EIN 830943500 · Headquarters: Wilton, CT, US · Employment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  59. Wilton Track Association Inc

    EIN 331043319 · Headquarters: Wilton, CT, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  60. Wilton Volunteer Ambulance Corps Inc

    EIN 060982860 · Headquarters: WILTON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Wilton Volunteer Fire Dept Inc

    EIN 066013397 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  62. Wilton Warrior Gridiron Club Inc

    EIN 842047028 · Headquarters: Wilton, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Wilton Woman's Club Inc

    EIN 060933640 · Headquarters: WILTON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Wilton Youth Council Inc

    EIN 061266159 · Headquarters: WILTON, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Wilton Youth Field Hockey Inc

    EIN 454043504 · Headquarters: WILTON, CT, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  66. Wilton Youth Football

    EIN 320228095 · Headquarters: WILTON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Wilton Youth Wrestling Inc

    EIN 273948824 · Headquarters: Wilton, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Wilton-weston Advanced Life Support Association Inc

    EIN 061395408 · Headquarters: Wilton, CT, US · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  69. Win-win Foundation Inc

    EIN 061510593 · Headquarters: NEWTOWN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2011 · Primary form: IRS Form 990

  70. Winchester Center Historical Association Inc

    EIN 061172571 · Headquarters: Winchester Center, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Winchester Historical Society

    EIN 066039538 · Headquarters: WINSTED, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  72. Winchester Land Trust Inc

    EIN 061263180 · Headquarters: WINCHESTER CENTER, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Winchester Schools Parent Teacher Organization Inc

    EIN 061461208 · Headquarters: Winsted, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Winchester Volunteer Fire Department

    EIN 300729836 · Headquarters: Winchester, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Wind Hill Community Farm & Learning Center Inc

    EIN 451538008 · Headquarters: Glastonbury, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Windermere Parent Teachers

    EIN 061609555 · Headquarters: Ellington, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Windham 4 Paws Inc

    EIN 800370529 · Headquarters: WILLIMANTIC, CT, USA · Animal Related · Latest available filing year: 2016 · Primary form: IRS Form 990

  78. Windham Area Arts Collaborative

    EIN 061559008 · Headquarters: WillimantiC, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Windham Area Assessors Association Inc

    EIN 333051401 · Headquarters: PLAINFIELD, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Windham Bigg Play Inc

    EIN 061447816 · Headquarters: NORTH WINDHAM, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Windham Center School Pto

    EIN 273443160 · Headquarters: Windham, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Windham Charter School Corporation Path Academy Windham

    EIN 464109569 · Headquarters: WILLIMANTIC, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  83. Windham Community Memorial Hospital Inc

    EIN 060646966 · Headquarters: Willimantic, CT, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  84. Windham Community Memorial Hospital Women's Auxiliary Inc

    EIN 060677728 · Headquarters: Willimantic, CT, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2023 · Primary form: IRS Form 990

  85. Windham Concert Band Inc

    EIN 222730398 · Headquarters: Pomfret Center, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Windham County 4-H Foundation Inc

    EIN 066044157 · Headquarters: POMFRET, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Windham County Agricultural Extension Council Inc

    EIN 061053946 · Headquarters: Brooklyn, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  88. Windham County Agricultural Foundation Inc

    EIN 271185129 · Headquarters: Brooklyn, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  89. Windham County Agricultural Society Inc

    EIN 060891737 · Headquarters: BROOKLYN, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Windham County Farm Bureau Inc

    EIN 060836668 · Headquarters: North Grosvenordale, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Windham County Kennel Club Inc

    EIN 066076959 · Headquarters: Lebanon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Windham County Medical Association

    EIN 061081180 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  93. Windham Free Library Association

    EIN 066039708 · Headquarters: WINDHAM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Windham Harm Reduction Coalition

    EIN 900738904 · Headquarters: Willimantic, CT, US · Health Care · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  95. Windham High School Booster Club Inc

    EIN 061051840 · Headquarters: WILLIMANTIC, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Windham Hospital Foundation Inc

    EIN 562546632 · Headquarters: WILLIMANTIC, CT, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. Windham Preservation Inc

    EIN 832603945 · Headquarters: WINDHAM, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Windham Region Chamber of Commerce Foundation

    EIN 844752904 · Headquarters: Willimantic, CT, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Windham Region Chamber of Commerce Foundation Inc

    EIN 060591400 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Windham Regional Arts Council Inc

    EIN 222814964 · Headquarters: WILLIMANTIC, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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