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. White Hills Eagles R C Club Inc

    EIN 270183537 · Headquarters: Seymour, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. White Owl Housing

    EIN 881255473 · Headquarters: Waterbury, CT, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Whiteys Only Wish Inc

    EIN 813603394 · Headquarters: Coventry, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Whiting Lane Extended Day Care Inc

    EIN 060973361 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Whiting Lane Parent Teacher Organization Inc

    EIN 061614600 · Headquarters: WEST HARTFORD, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Whitney and Anne Stone Foundation

    EIN 133394681 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Whitney Center Inc

    EIN 060924891 · Headquarters: HAMDEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Whitney Farms Mens Club Inc

    EIN 272493092 · Headquarters: Monroe, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Whitneyville Cultural Commons Inc

    EIN 475322239 · Headquarters: Hamden, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Whittaker Family Foundation

    EIN 920836768 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. Whittemore Foundation

    EIN 133527578 · Headquarters: WEST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  12. Whole Life Inc

    EIN 061204033 · Headquarters: NEW LONDON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Wholesome Wave Inc

    EIN 260352899 · Headquarters: BRIDGEPORT, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Wholistic Wellness for Warriors Inc

    EIN 991340185 · Headquarters: Avon, CT, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. WHS Basketball Boosters Inc

    EIN 834278044 · Headquarters: Wilton, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Whs Boys Lacrosse Boosters Inc

    EIN 301361942 · Headquarters: Wethersfield, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Whs Theater Arts Association Inc

    EIN 842602637 · Headquarters: Wilton, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Why Outreach Inc

    EIN 451584946 · Headquarters: HARTFORD, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Whysl Inc

    EIN 463583852 · Headquarters: West Haven, CT, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Wide Open Golf Classic Inc

    EIN 821462084 · Headquarters: COLLINSVILLE, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Widowed Persons Service of Greater Bridgeport Inc

    EIN 061424089 · Headquarters: Bridgeport, CT, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. Widows Society C/o Joan Thomas

    EIN 066026060 · Headquarters: AVON, CT, USA · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  23. Widows Son Lodge 1 Ph a and Fm Inc

    EIN 990614759 · Headquarters: New Haven, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Widows Son Lodge No 1 Inc

    EIN 823636852 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Widows Sons Branded Riding Club Inc

    EIN 842693866 · Headquarters: THOMASTON, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Widows Sons Inc

    EIN 843367868 · Headquarters: Putnam, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Wieland Family Foundation Inc

    EIN 822589403 · Headquarters: RIDGEFIELD, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. Wig Evm Forum Incorporated

    EIN 461352424 · Headquarters: Granby, CT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  29. Wig Initiative Group

    EIN 822053953 · Headquarters: wallingford, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  30. Wiggins Institute for Social Integrity Inc

    EIN 061622537 · Headquarters: New Fairfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  31. Wiks-USA Inc

    EIN 264770742 · Headquarters: New Haven, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Wilberforce Inc

    EIN 831646350 · Headquarters: Greenwich, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  33. Wilbert Snow School Pto

    EIN 991581740 · Headquarters: Middletown, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Wilcox Cemetery Association

    EIN 060662435 · Headquarters: EAST BERLIN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Wilcoxson Fathers Club

    EIN 462217582 · Headquarters: Stratford, CT, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Wild Earth's Children

    EIN 273011046 · Headquarters: East Haddam, CT, USA · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  37. Wild Lake Association Inc

    EIN 113807405 · Headquarters: MERIDEN, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Wild Ride Inc

    EIN 873518691 · Headquarters: Sterling, CT, US · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Wild Wings Inc

    EIN 061331836 · Headquarters: Stamford, CT, US · Animal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  40. Wild Works Connects

    EIN 920906739 · Headquarters: Riverside, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Wildcat Band Boosters Inc

    EIN 061374811 · Headquarters: Norwich, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Wildcat Dance Boosters

    EIN 922748725 · Headquarters: NORWICH, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Wildcat Kick Off Club Inc

    EIN 460766188 · Headquarters: SEYMOUR, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Wildcat Swim Club Inc

    EIN 201708709 · Headquarters: Seymour, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Wildcats Hockey Booster Club Inc

    EIN 843282112 · Headquarters: Suffield, CT, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  46. Wildemere Beach Association

    EIN 465347920 · Headquarters: MILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. Wilderness Kingdom Inc

    EIN 043338062 · Headquarters: WOODSTOCK, CT, USA · Animal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  48. Wildlife Aid International

    EIN 933125714 · Headquarters: KENSINGTON, CT, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Wildlife in Crisis Inc

    EIN 223020015 · Headquarters: WESTON, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Wildlife-lodges Foundation Inc

    EIN 831361849 · Headquarters: Branford, CT, US · Animal Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  51. Wildshare Inc

    EIN 061508616 · Headquarters: GEORGETOWN, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  52. Wildwatch

    EIN 223113515 · Headquarters: Woodbridge, CT, US · Arts, Culture & Humanities · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  53. Wilkerson Scholarship Fund Llc

    EIN 061617537 · Headquarters: NORWALK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  54. Will I Wellness Incorporated

    EIN 883965238 · Headquarters: Columbia, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. William & Ellen E Macristy Fnd

    EIN 066034030 · Headquarters: GLASTONBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  56. William & Gloria Paul Family Foundation Inc

    EIN 061555806 · Headquarters: TRUMBULL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. William & Honora Ramsay Ambulatory Medical and Prosthetic Services

    EIN 300891925 · Headquarters: Madison, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. William & Lynda Steere Foundation

    EIN 656286705 · Headquarters: Westport, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. William and Lesley King Foundation

    EIN 461595598 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  60. William B Nollman Scholarship Fund

    EIN 061038811 · Headquarters: GREENWICH, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. William Babcock Trust C/o Episcopal Church in Connecticut

    EIN 066026216 · Headquarters: MERIDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. William C Bullock Jr Family Foundation Co

    EIN 016080947 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  63. William C Young Family Foundation

    EIN 473104460 · Headquarters: GLASTONBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. William Casazza Family Foundation Dtd 07/22/15

    EIN 474651969 · Headquarters: AVON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  65. William Caspar Graustein Memorial Fund

    EIN 046037391 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. William E Edwards Academic College Tours Inc

    EIN 821332068 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. William E Raymond Trust

    EIN 066034039 · Headquarters: NEW CANAAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  68. William H Chapman Foundation

    EIN 066034290 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  69. William H Prusoff Foundation

    EIN 061601597 · Headquarters: FAIRFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  70. William J Cook Iii Scholarship Fund

    EIN 061464210 · Headquarters: waterbury, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  71. William J Mayer Trust Uad June 15 1998 Fbo

    EIN 066475364 · Headquarters: ESSEX, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  72. William J Ryan Jr Scholarship

    EIN 061363378 · Headquarters: UNIONVILLE, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  73. William Kent Art Foundation Inc

    EIN 990777194 · Headquarters: Durham, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. William L Gilbert School Corp

    EIN 223110244 · Headquarters: WINSTED, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. William M Strong Elementary School PTO Inc

    EIN 454786690 · Headquarters: Plantsville, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. William Mansfield Tr

    EIN 066164298 · Headquarters: WATERBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  77. William Mary And Beatrice Horvath Scholarship

    EIN 467383360 · Headquarters: Fairfield, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  78. William Meredith Foundation Inc

    EIN 261561064 · Headquarters: Groton, CT, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. William Raveis Charitable Fund Inc

    EIN 810648663 · Headquarters: SHELTON, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. William Widdy Neale Scholarship Fund

    EIN 066283158 · Headquarters: ROCKY HILL, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  81. Williams & Greatness Inc

    EIN 393031849 · Headquarters: Meriden, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Williams Cookie Jar Foundation C/o David B Williams

    EIN 331079039 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  83. Williams Memorial Institute

    EIN 060646964 · Headquarters: NEW LONDON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Williams Soccer Academy Inc

    EIN 834651538 · Headquarters: Windsor, CT, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  85. Williams Syndrome Charitable Foundation USA Inc

    EIN 813278513 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Willimantic Advocates Make It Happen Inc

    EIN 273740570 · Headquarters: Mansfield, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  87. Willimantic Bpoe 1311

    EIN 060258965 · Headquarters: WILLIMANTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Willimantic Housing Corporation

    EIN 811517188 · Headquarters: Willimantic, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990

  89. Willimantic Latino Lions Club

    EIN 332412526 · Headquarters: NORTH WINDHAM, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Willimantic Mens Athletic Club

    EIN 060962571 · Headquarters: NORTH WINDHAM, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Willimantic Orchestra Inc

    EIN 222997689 · Headquarters: Tolland, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Willimantic Public Art

    EIN 853718463 · Headquarters: WILLIMANTIC, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Willimantic Renaissance Inc

    EIN 030422128 · Headquarters: Willimantic, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Willimantic River Alliance Inc

    EIN 203121941 · Headquarters: Bolton, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Willimantic Victorian Neighborhood Association Inc

    EIN 202333856 · Headquarters: Willimantic, CT, US · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Willimantic Whitewater Partnership Inc

    EIN 200905978 · Headquarters: Willimantic, CT, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  97. Willington Baptist Society Inc

    EIN 061550377 · Headquarters: Willington, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Willington Fire Department Inc 1

    EIN 237356028 · Headquarters: WILLINGTON, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Willington Fish and Game Club Inc

    EIN 066180740 · Headquarters: Willington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Willington Hill Fire Department Inc

    EIN 060889901 · Headquarters: Willington, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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