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. Grand Lodge of Connecticut Order Sons and Daughters of Italy in America

    EIN 060305180 · Headquarters: North Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  2. Grandparents Advocate of America Inc

    EIN 823216619 · Headquarters: naugatuck, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  3. Grants Way Foundation Inc

    EIN 465382878 · Headquarters: Wethersfield, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Granville Academy in New Haven

    EIN 010794683 · Headquarters: NEW HAVEN, CT, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  5. Granville Academy of Waterbury Inc

    EIN 061404367 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Grasso Regional Association for Special People Inc

    EIN 222527676 · Headquarters: Stratford, CT, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  7. Grasso Technical High School Pfo

    EIN 320255073 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Grassroots Fund for the Environment Inc

    EIN 202986668 · Headquarters: Madison, CT, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  9. Grassrootshorse

    EIN 273109657 · Headquarters: East Haddam, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Grateful Acts Project Inc

    EIN 332655987 · Headquarters: SOUTH WINDSOR, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Gravestone Initiative Inc

    EIN 873207349 · Headquarters: Old Lyme, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Gravinese Mutual Aid Society of Stamford Conn

    EIN 066047033 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Gravitymoves Inc

    EIN 812741067 · Headquarters: Fairfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Gray Foundation Inc

    EIN 208823263 · Headquarters: WALLINGFORD, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Graysland Animal Sanctuary

    EIN 830966402 · Headquarters: Windham, CT, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Grayson Minney Memorial Music Foundation Inc

    EIN 475398977 · Headquarters: Amston, CT, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  17. Great Beginnings Montessori School

    EIN 061457373 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Great Commission International Ministries Inc

    EIN 883628077 · Headquarters: TRUMBULL, CT, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Great Council of the United States Improved Order of Red Men

    EIN 060400067 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Great Council of the United States Improved Order of Red Men

    EIN 060400073 · Headquarters: Winsted, CT, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  21. Great Council of the United States Improved Order of Red Men

    EIN 060610291 · Headquarters: Fairfield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  22. Great Council of the United States Improved Order of Red Men

    EIN 061073713 · Headquarters: GREENWICH, CT, US · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  23. Great Council of the United States Improved Order of Red Men

    EIN 061314966 · Headquarters: Plainville, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  24. Great Council of the United States Improved Order of Red Men

    EIN 066035470 · Headquarters: Seymour, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Great Council of the United States Improved Order of Red Men

    EIN 066038621 · Headquarters: East Haven, CT, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  26. Great Council of the United States Improved Order of Red Men

    EIN 222892914 · Headquarters: norwalk, CT, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. Great Council of the United States Improved Order of Red Men

    EIN 222982341 · Headquarters: Plansville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Great Council of the United States Improved Order of the Red Men

    EIN 060400074 · Headquarters: Winsted, CT, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  29. Great Dads Society

    EIN 463235997 · Headquarters: New Milford, CT, US · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  30. Great Dane Club of Oxford CT

    EIN 237346726 · Headquarters: Tolland, CT, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  31. Great Divide Animal Rescue

    EIN 821617674 · Headquarters: NORTH GRANBY, CT, USA · Animal Related · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  32. Great Hill Fish & Game Club Inc

    EIN 061381515 · Headquarters: Trumbull, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Great Hill Hose INC

    EIN 066047959 · Headquarters: Seymour, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Great Hollow Management Inc

    EIN 472727931 · Headquarters: NEW MILFORD, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Great Island Foundation Inc

    EIN 921629368 · Headquarters: OLD LYME, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Great Island Preservation Inc

    EIN 995082502 · Headquarters: DARIEN, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Great Meadows Conservation Trust Inc

    EIN 066104075 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Great Mountain Forest Corporation

    EIN 132998991 · Headquarters: Norfolk, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  39. Great Oaks Charter School - Bridgeport

    EIN 471159132 · Headquarters: Bridgeport, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Great Operations

    EIN 853491257 · Headquarters: Wolcott, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Great Plain School Parent Teacher Organization

    EIN 061329789 · Headquarters: Danbury, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Great Pond Corporation

    EIN 060666842 · Headquarters: Ridgefield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Great River Land Trust Inc

    EIN 454128786 · Headquarters: EAST HARTFORD, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Great Science for All Corp

    EIN 815425100 · Headquarters: New Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Greater Apostolic Love & Faith Tabernacle

    EIN 061594053 · Headquarters: West Haven, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Greater Aweil Community USA Inc

    EIN 831389391 · Headquarters: WEST HARTFORD, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Greater Bpt Retired Teachers Assoc

    EIN 066057277 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Greater Bridgeport Amateur Radio Club Inc

    EIN 651295073 · Headquarters: Trumbull, CT, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Greater Bridgeport Association of the Deaf Inc

    EIN 061073242 · Headquarters: Wallingford, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  50. Greater Bridgeport Bar Association Inc

    EIN 061033620 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Greater Bridgeport Board of Realtors Inc

    EIN 060801311 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Greater Bridgeport Community Enter

    EIN 205759623 · Headquarters: BRIDGEPORT, CT, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  53. Greater Bridgeport Jewish Housing Corp

    EIN 060983825 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Greater Bridgeport Junior Hockey Association

    EIN 237033830 · Headquarters: Shelton, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Greater Bridgeport Latino Network Inc

    EIN 203328365 · Headquarters: BRIDGEPORT, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Greater Bridgeport Medical Association

    EIN 237169638 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Greater Bridgeport Section National Council of Negro Women Inc

    EIN 320458392 · Headquarters: BRIDGEPORT, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Greater Bridgeport St Patrick's Day Celebration Inc

    EIN 061317024 · Headquarters: BRIDGEPORT, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Greater Bridgeport Symphony Society Inc

    EIN 066012460 · Headquarters: Bridgeport, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Greater Bristol Development Foundation Inc

    EIN 066073592 · Headquarters: BRISTOL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  61. Greater Bristol Historical Society

    EIN 237122055 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Greater Bristol Homes Co

    EIN 061469237 · Headquarters: BRISTOL, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  63. Greater Bristol Labor Council Afl-cio

    EIN 474005418 · Headquarters: Bristol, CT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  64. Greater Bristol Visiting Nurse Assoc

    EIN 060646560 · Headquarters: Bristol, CT, USA · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990

  65. Greater Central Ct Usbc

    EIN 651278403 · Headquarters: PLAINVILLE, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Greater Connecticut Youth Orchestras Inc

    EIN 061325895 · Headquarters: FAIRFIELD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Greater Danbury Bar Association Inc

    EIN 453781272 · Headquarters: Brookfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Greater Danbury Chamber of Commerce Inc

    EIN 060608502 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  69. Greater Danbury Irish Cultural Foundation Inc

    EIN 462329167 · Headquarters: DANBURY, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Greater Dwight Community Investment Corporation

    EIN 061519070 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Greater Dwight Development Corporation

    EIN 061414605 · Headquarters: NEW HAVEN, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Greater Education Council of Connecticut

    EIN 335062652 · Headquarters: Guilford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Greater Fairfield Chapter Womens Council of Realtors

    EIN 270180352 · Headquarters: Brookfield, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Greater Fairfield County Foundation

    EIN 273151846 · Headquarters: Stamford, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Greater Fairfield County Softball Umpires Association Inc

    EIN 273334788 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  76. Greater Glastonbury Ftc Inc

    EIN 833179790 · Headquarters: Glastonbury, CT, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Greater Glory Ministries

    EIN 872191710 · Headquarters: Vernon Rockville, CT, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Greater Groton Realty Corporation

    EIN 473104202 · Headquarters: GROTON, CT, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Greater Hartford Academy of the Arts Parents Friends & Alumni Asso

    EIN 814868397 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  80. Greater Hartford Alliance of Black Social Workers Inc

    EIN 061362314 · Headquarters: Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Greater Hartford Arts Council Inc

    EIN 237111486 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Greater Hartford Association of Historic Homes and Museums

    EIN 611540934 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  83. Greater Hartford Association of Realtors

    EIN 060685915 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Greater Hartford Association of Realtors Foundation Inc

    EIN 454612325 · Headquarters: HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Greater Hartford Automobile Dealers Association Foundation Inc

    EIN 061201236 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  86. Greater Hartford Business Development Center Inc

    EIN 060999484 · Headquarters: HARTFORD, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990

  87. Greater Hartford Center for Economic and Social Justice Inc

    EIN 832533897 · Headquarters: Hartford, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Greater Hartford Chamber of Commerce Foundation

    EIN 237366606 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Greater Hartford Chapter 166 Inc

    EIN 200875500 · Headquarters: East Hartford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Greater Hartford Chapter of Boma International

    EIN 061083409 · Headquarters: BLOOMFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Greater Hartford Chapter of the National Black Mba Association Inc

    EIN 061443591 · Headquarters: West Hartford, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Greater Hartford Coalition for Quality Healthcare Inc

    EIN 208132179 · Headquarters: HARTFORD, CT, US · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  93. Greater Hartford Community Foundation Inc

    EIN 421684133 · Headquarters: HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Greater Hartford Community Outreach Inc

    EIN 462560129 · Headquarters: Hartford, CT, US · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  95. Greater Hartford Consortium for Higher Education

    EIN 237288868 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Greater Hartford Cycling Club

    EIN 332960439 · Headquarters: Unionville, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Greater Hartford Festival of Jazz Inc

    EIN 061358376 · Headquarters: HARTFORD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Greater Hartford Host Lions Charities Inc

    EIN 061499201 · Headquarters: Hartford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Greater Hartford Interdenominational Ministerial

    EIN 300620571 · Headquarters: Bloomfield, CT, US · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  100. Greater Hartford Italian Police Officers Association Inc

    EIN 134236165 · Headquarters: HARTFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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