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. Project Paws the Tim Buckley Project Inc

    EIN 830909220 · Headquarters: Old Lyme, CT, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Project Pin Incorporated

    EIN 364747513 · Headquarters: DANIELSON, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Project Playground

    EIN 262881315 · Headquarters: weston, CT, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  4. Project Precious Rescue Inc

    EIN 461131954 · Headquarters: STAMFORD, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Project Purple Inc

    EIN 273492063 · Headquarters: SEYMOUR, CT, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Project Quetzal Incorporated

    EIN 061257490 · Headquarters: Deep River, CT, USA · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  7. Project Return Inc

    EIN 222552501 · Headquarters: Westport, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2016 · Primary form: IRS Form 990

  8. Project Ropes

    EIN 844357071 · Headquarters: New Haven, CT, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Project Sage Inc

    EIN 061072379 · Headquarters: LAKEVILLE, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Project Santa

    EIN 813927240 · Headquarters: Windsor, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Project Shabbat Inc

    EIN 352352723 · Headquarters: Stamford, CT, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  12. Project Sunshine Inc

    EIN 333588357 · Headquarters: MONROE, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Project Time in Trenches Corporation

    EIN 933353927 · Headquarters: Milford, CT, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Project Troubador Inc

    EIN 133042328 · Headquarters: Salisbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Project Youth Court Inc

    EIN 472274619 · Headquarters: NEW HAVEN, CT, US · Crime & Legal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. Projectkoguma Inc

    EIN 394687311 · Headquarters: Niantic, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Projects for a New Millennium Inc

    EIN 223297631 · Headquarters: Branford, CT, US · Social Science · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  18. Promare Inc

    EIN 760699869 · Headquarters: CHESTER, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Prometheum Foundation Inc

    EIN 264332141 · Headquarters: STAMFORD, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Promindful Inc

    EIN 261684965 · Headquarters: STAMFORD, CT, USA · Health Care · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  21. Promise Outreach

    EIN 474211571 · Headquarters: Bloomfield, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Promisek Incorporated

    EIN 060964701 · Headquarters: BRIDGEWATER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  23. Promises Kept Equine Rescue

    EIN 460729610 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  24. Promising Scholars Fund Inc

    EIN 800112325 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Promoting an Enduring Peace

    EIN 262759880 · Headquarters: Hamden, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. Pronatura Mexico USA Inc

    EIN 260468709 · Headquarters: Old Greenwich, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  27. Prophetic House Ministry

    EIN 900936794 · Headquarters: Waterbury, CT, US · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  28. Proscenium Players Inc

    EIN 770611145 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  29. Prospect Beach Fish & Game Club

    EIN 061278244 · Headquarters: WEST HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Prospect Business Association Inc

    EIN 471035949 · Headquarters: Prospect, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Prospect Car Owners Assoc Inc

    EIN 061302036 · Headquarters: Woodbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Prospect Elementary School Parent Teacher Organization Inc

    EIN 474275721 · Headquarters: PROSPECT, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Prospect Gun Club

    EIN 061297775 · Headquarters: PROSPECT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Prospect Hill Foundation Inc C/o Meghan W Cioffi

    EIN 205572208 · Headquarters: NEW CANAAN, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Prospect Historical Society Incorporated

    EIN 237347788 · Headquarters: Prospect, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Prospect Land Trust Inc

    EIN 114349128 · Headquarters: Prospect, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Prospect Little League Inc

    EIN 237009332 · Headquarters: PROSPECT, CT, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  38. Prospect Police Benevolent Association

    EIN 061417840 · Headquarters: Prospect, CT, US · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. Prospect Police Union

    EIN 821305398 · Headquarters: Prospect, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Prospect Scholarship Foundation Inc

    EIN 812922904 · Headquarters: PROSPECT, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Prospect Softball Association Inc

    EIN 061462161 · Headquarters: Propesct, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  42. Prospect Street Holding Inc

    EIN 061424260 · Headquarters: New Haven, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  43. Prospect Youth Soccer Inc

    EIN 061190966 · Headquarters: PROSPECT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Prospects Opportunity and Enrichment Inc

    EIN 461904997 · Headquarters: RIDGEFIELD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Prosper Our Youth

    EIN 874756444 · Headquarters: wolcott, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Prospera Development Foundation

    EIN 923630661 · Headquarters: New Haven, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Prosperity House Inc

    EIN 471990844 · Headquarters: New Haven, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  48. Protect Ct Public Lands Coalition

    EIN 830684308 · Headquarters: ROCKFALL, CT, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  49. Protect Lake Waramaug - Coalition to Ban Wake Surfing Association

    EIN 334934396 · Headquarters: new preston, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Protect Our Pollinators

    EIN 833051531 · Headquarters: NEWTOWN, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Protect Your Environment Pye of Stratford Conn Inc

    EIN 237089972 · Headquarters: Stratford, CT, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  52. Protectors of Animals Inc

    EIN 060959891 · Headquarters: EAST HARTFORD, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Proud Academy Inc

    EIN 871920191 · Headquarters: NEW HAVEN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Proud Nation Inc % Dl Debaise & Company Llc

    EIN 462331502 · Headquarters: WALLINGFORD, CT, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Proust Society of Greenwich

    EIN 813293173 · Headquarters: Greenwich, CT, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Proverbs

    EIN 201465463 · Headquarters: Hamden, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Proverbs 327 Foundation

    EIN 872709442 · Headquarters: MONROE, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  58. Providence College Alumni Association New Haven Chapter

    EIN 510191736 · Headquarters: WOODBRIDGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Providers Nutrition Network Inc

    EIN 061135488 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  60. Provincetown Academy of Living Arts Inc

    EIN 237229875 · Headquarters: Stonington, CT, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  61. Prudence Crandall Center Inc

    EIN 060968557 · Headquarters: NEW BRITAIN, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Ps It Hurts Inc

    EIN 844721831 · Headquarters: Clinton, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Ps4d Inc

    EIN 812060579 · Headquarters: Norwalk, CT, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  64. Psa Education Inc

    EIN 813540141 · Headquarters: Putnam, CT, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990

  65. Psi Chi National Honor Society in Psychology

    EIN 611600549 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Psi Chi the International Honor Society in Psychology

    EIN 521538517 · Headquarters: STORRS, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Psi Chi the International Honor Society in Psychology

    EIN 521539093 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Psi Chi the International Honor Society in Psychology

    EIN 582128765 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Psi Chi the National Honor Society in Psychology

    EIN 237031511 · Headquarters: New Britain, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  70. Psi Chi the National Honor Society in Psychology

    EIN 237031530 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Psi Chi the National Honor Society in Psychology

    EIN 237212234 · Headquarters: Danbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Psi Chi the National Honor Society in Psychology

    EIN 237333549 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Psi Chi the National Honor Society in Psychology

    EIN 510202398 · Headquarters: West Haven, CT, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  74. Psi Chi the National Honor Society in Psychology

    EIN 510218866 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Psi Chi the National Honor Society in Psychology

    EIN 510254917 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Psi Chi the National Honor Society in Psychology

    EIN 521538518 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Psi Chi the National Honor Society in Psychology

    EIN 521575253 · Headquarters: New London, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Psi Chi the National Honor Society in Psychology

    EIN 550916876 · Headquarters: New London, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  79. Psi Chi the National Honor Society in Psychology

    EIN 582039996 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Psi Chi the National Honor Society in Psychology

    EIN 582040002 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Psi Chi the National Honor Society in Psychology

    EIN 582040014 · Headquarters: HAMDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Psychoanalytic Psychodynamic Research Society

    EIN 270259539 · Headquarters: New Haven, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  83. Psychtable Inc

    EIN 475591405 · Headquarters: TRUMBULL, CT, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Pt Barnum Foundation Inc

    EIN 222655681 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Pta Connecticut Congress

    EIN 060993937 · Headquarters: Seymour, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Pta Connecticut Congress

    EIN 061161033 · Headquarters: Southington, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  87. Pta Connecticut Congress

    EIN 061260861 · Headquarters: West Haven, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  88. Pta Connecticut Congress

    EIN 061304207 · Headquarters: Shelton, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  89. Pta Connecticut Congress

    EIN 061320393 · Headquarters: Waterford, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  90. Pta Connecticut Congress

    EIN 061348168 · Headquarters: Cheshire, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  91. Pta Connecticut Congress

    EIN 061356244 · Headquarters: West Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Pta Connecticut Congress

    EIN 061362758 · Headquarters: Wolcott, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  93. Pta Connecticut Congress

    EIN 061402110 · Headquarters: Bristol, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. Pta Connecticut Congress

    EIN 061564980 · Headquarters: NORTH HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Pta Connecticut Congress

    EIN 066068737 · Headquarters: Quaker Hill, CT, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  96. Pta Connecticut Congress

    EIN 203064366 · Headquarters: TRUMBULL, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Pta Connecticut Congress

    EIN 222581229 · Headquarters: West Hartford, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  98. Pta Connecticut Congress

    EIN 260066698 · Headquarters: Unionville, CT, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  99. Pta Connecticut Congress

    EIN 260073541 · Headquarters: Newington, CT, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  100. Pta Connecticut Congress

    EIN 352371332 · Headquarters: Winsted, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

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