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. The Old Stone Mill Foundation

    EIN 813365000 · Headquarters: Colchester, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  2. The Old Stones Foundation Inc

    EIN 061463304 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  3. The Oliver-benoit Foundation Co

    EIN 923140603 · Headquarters: Windsor, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. The Open Door Inc

    EIN 061346141 · Headquarters: Winsted, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. The Open Door Shelter Inc

    EIN 222536909 · Headquarters: NORWALK, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. The Open Hearth Association

    EIN 060646773 · Headquarters: HARTFORD, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. The Opera House Players Inc

    EIN 311727690 · Headquarters: ENFIELD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. The Optimus Foundation

    EIN 273415722 · Headquarters: STRATFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. The Orchards at Southington

    EIN 061490803 · Headquarters: SOUTHINGTON, CT, USA · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990

  10. The Orenstein Family Foundation

    EIN 061576951 · Headquarters: DARIEN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. The Ossipee Club of Wolfeboro Neck Inc

    EIN 061814204 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. The Over 60 Club Inc

    EIN 455398824 · Headquarters: Stamford, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. The Own Your Future Foundation Inc

    EIN 843835920 · Headquarters: SHELTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. The Pachaug Outdoor Club Inc

    EIN 061083310 · Headquarters: Griswold, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. The Pakula Foundation

    EIN 061601371 · Headquarters: WEST HARTFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. The Palace Theater Group Inc

    EIN 020620399 · Headquarters: WATERBURY, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. The Pamela Howard Family Foundation Inc C/o Andersen Tax Llc

    EIN 134192506 · Headquarters: OLD GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  18. The Parent Child Center Inc

    EIN 061276427 · Headquarters: WESTPORT, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. The Parent Teacher Council of Stamf

    EIN 061185189 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. The Parent Teacher Council of Stamf

    EIN 061393960 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. The Parent Teacher Council of Stamford

    EIN 060977317 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. The Parent Teacher Council of Stamford

    EIN 061304070 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. The Parent Teacher Council of Stamford

    EIN 061344048 · Headquarters: Stamfoard, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. The Parent Teacher Council of Stamford

    EIN 061380419 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. The Parent Teacher Council of Stamford

    EIN 061384328 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. The Parent Teacher Council of Stamford

    EIN 061413826 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. The Parent Teacher Council of Stamford

    EIN 061624660 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. The Parent Teacher Council of Stamford

    EIN 061635547 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. The Parent Teacher Council of Stamford

    EIN 223480304 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. The Parent Teacher Council of Stamford

    EIN 813366027 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. THE PARENT TEACHER COUNCIL OF STAMFORD Cloonan Middle School

    EIN 061099442 · Headquarters: Stamford, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. The Parent Teachers Council of Turn of River School

    EIN 237188831 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. The Park Family Charitable Foundation

    EIN 833049826 · Headquarters: WESTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. The Partnership for Connecticut Inc

    EIN 841931601 · Headquarters: HARTFORD, CT, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990

  35. The Partyka Foundation for Giving Inc

    EIN 883294184 · Headquarters: SOUTHINGTON, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. The Pathfinders Association of Manchester Ct Inc

    EIN 066070382 · Headquarters: Manchester, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. The Patient Is U Foundation Inc

    EIN 814604897 · Headquarters: ESSEX, CT, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  38. The Patricia Foundation

    EIN 995006171 · Headquarters: SIMSBURY, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. The Patricia M and Robert H Martinsen Foundation

    EIN 276961238 · Headquarters: RIDGEFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  40. The Patrick and Catherine Weldon Donaghue Medical Research Foundation

    EIN 066348275 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. The Patrina Family Foundation

    EIN 208033067 · Headquarters: WEST SIMSBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  42. The Patterson Club Inc

    EIN 060614953 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. The Paugusset Club Incorporated

    EIN 060761075 · Headquarters: Orange, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. The Paul Rand Charitable Trust C/o Richard Klein

    EIN 066433890 · Headquarters: GUILFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  45. The Pelletier Family Foundation Inc

    EIN 061604304 · Headquarters: Branford, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  46. The Peoples Place Inc

    EIN 933978870 · Headquarters: Waterbury, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. The Pequot Yacht Club Foundation Inc

    EIN 843653865 · Headquarters: SOUTHPORT, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. The Per and Astrid Heidenreich Family Foundation

    EIN 206382658 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  49. The Perfect Blend Inc

    EIN 272254688 · Headquarters: New Haven, CT, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. The Perrin Family Foundation C/o Andersen Tax Llc

    EIN 223309886 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  51. The Perrot Memorial Library Associa of Old Greenwichinc

    EIN 061012967 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. The Perry House Foundation Inc

    EIN 134268594 · Headquarters: STRATFORD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. The Perryridge Corporation

    EIN 061207316 · Headquarters: GREENWICH, CT, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990

  54. The Pet Project Inc

    EIN 222567515 · Headquarters: Griswold, CT, US · Animal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  55. The Peter and Thomas DiPietro Foundation Inc C/O Ronald A Soccoli Jr

    EIN 822272059 · Headquarters: New Haven, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  56. The Peter J Frenkel Foundation Inc

    EIN 431963137 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  57. The Peter Savitz Foundation

    EIN 133748074 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  58. The Petit Family Foundation Inc

    EIN 260627813 · Headquarters: PLAINVILLE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. The Pfleger Foundation Inc

    EIN 832797908 · Headquarters: Ridgefield, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  60. The Phi Gamma Delta House Assoc Gettysburg

    EIN 230967743 · Headquarters: Sandy Hook, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. The Philomen J Hewitt Jr Honeybee Museum and Research Center Inc

    EIN 222527127 · Headquarters: Bethlehem, CT, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. The Phoenix Association Inc

    EIN 471840419 · Headquarters: MERIDEN, CT, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. The Phoenix Project Inc

    EIN 392239352 · Headquarters: BURLINGTON, CT, US · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. The Pid Fund for Fairfield Rugby Inc

    EIN 263925908 · Headquarters: FAIRFIELD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. The Pie Fund Inc

    EIN 201820768 · Headquarters: Redding, CT, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. The Pillars Foundation C/o Jon Speare

    EIN 825033265 · Headquarters: WILTON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. The Pilot House Foundation Inc

    EIN 061796512 · Headquarters: FAIRFIELD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. The Pine Orchard Yacht and Country Club Inc

    EIN 060755218 · Headquarters: PINE ORCHARD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. The Pink Chair Project Inc

    EIN 831732190 · Headquarters: WATERTOWN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. The Pink Pockets Inc

    EIN 453957860 · Headquarters: Stamford, CT, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  71. The Pinkus Foundation

    EIN 134051212 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. The Piston Foundation Inc

    EIN 854373512 · Headquarters: STAMFORD, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. The Pitch Foundation

    EIN 821541555 · Headquarters: RIVERSIDE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. The Pitney Bowes Foundation

    EIN 200523317 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  75. The Pitney Bowes Relief Fund Charitable Trust

    EIN 223198214 · Headquarters: STAMFORD, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  76. The Plainville Masonic Temple Corporation

    EIN 464324856 · Headquarters: Plainville, CT, US · Mutual & Membership Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  77. The Plainville Police Association Incorporated

    EIN 061139532 · Headquarters: Plainville, CT, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. The Platner Family Foundation Inc

    EIN 263381922 · Headquarters: ESSEX, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  79. The Pohly Family Foundation

    EIN 020710984 · Headquarters: GREENWICH, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. The Police Activities League of Hartford Incorporated

    EIN 066068864 · Headquarters: Hartford, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. The Pomperaug River Watershed Coalition Inc

    EIN 061583895 · Headquarters: WOODBURY, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. The Possum Queen Foundation Inc

    EIN 451356240 · Headquarters: LITCHFIELD, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. The Pound Ridge Tennis Club Inc

    EIN 132541641 · Headquarters: STAMFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. The Power of a Dream Foundation

    EIN 851970241 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. The Prabhu Family Foundation

    EIN 274189009 · Headquarters: Greenwich, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  86. The Prasad Family Foundation Inc

    EIN 061564486 · Headquarters: GLASTONBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  87. The Pratt & Whitney Aircraft Club Inc

    EIN 060570970 · Headquarters: East Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. The Pray Family Foundation Inc

    EIN 900633482 · Headquarters: WESTPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  89. The Preschool at the Second Congregational Church

    EIN 261522371 · Headquarters: Greenwich, CT, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. The Preston Public Library

    EIN 060648942 · Headquarters: Preston, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  91. The Preventive Medicine Center

    EIN 061063651 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. The Princess Ball Inc

    EIN 030456008 · Headquarters: DANBURY, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. The Proctor Foundation

    EIN 066050916 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. The Prometheum Inc

    EIN 264689722 · Headquarters: STAMFORD, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. The Prospector Foundation Inc

    EIN 454561656 · Headquarters: RIDGEFIELD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. The Prosperity Foundation Inc

    EIN 474364468 · Headquarters: NEW HAVEN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. The Pryor Foundation C/o Esther A Pryor

    EIN 386056108 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. The Ptm Charitable Foundation C/o R Bradford Evans

    EIN 133800384 · Headquarters: SOUTHPORT, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. The Public Library of New London

    EIN 060662170 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. The Putnam Area Foundation

    EIN 201716876 · Headquarters: PUTNAM, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

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