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. Nubian Sisters Cancer Support Group

    EIN 431998856 · Headquarters: New Haven, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  2. Nuclear Information and Records Management Association Inc

    EIN 112561581 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Nur Foundation for Sacred Sciences

    EIN 463153494 · Headquarters: HARTFORD, CT, US · Social Science · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  4. Nursing and Home Care Inc

    EIN 060647031 · Headquarters: Norwalk, CT, USA · Health Care · Latest available filing year: 2009 · Primary form: IRS Form 990

  5. Nursing Career Center of Connecticut Inc

    EIN 061575928 · Headquarters: Meriden, CT, US · Health Care · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  6. Nursing Education Alumni Association Inc

    EIN 133994898 · Headquarters: OLD GREENWICH, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Nut Plains Cemetery Association of Guilford

    EIN 061301419 · Headquarters: GUILFORD, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Nutmeg Acres Wildlife Rehabilitation

    EIN 825166700 · Headquarters: Moosup, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Nutmeg Basketball Association Inc

    EIN 871948538 · Headquarters: Westport, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Nutmeg Bmx Inc

    EIN 061357480 · Headquarters: BETHEL, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  11. Nutmeg Book Award Foundation Inc

    EIN 202529531 · Headquarters: Enfield, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Nutmeg Border Collie Club

    EIN 263823933 · Headquarters: East Granby, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Nutmeg Chapel No 29

    EIN 822462990 · Headquarters: Middletown, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Nutmeg Chapter of the American Business Womens Association

    EIN 800335211 · Headquarters: WOODBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  15. Nutmeg Chapter of the Studebaker Drivers Club Inc

    EIN 222635922 · Headquarters: Andover, CT, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  16. Nutmeg Charity Inc

    EIN 812899712 · Headquarters: NEW HAVEN, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Nutmeg Church Planting Partnership Inc

    EIN 921030602 · Headquarters: Griswold, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Nutmeg Clay Crushers Inc

    EIN 920888778 · Headquarters: East Granby, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Nutmeg Conservatory for the Arts Inc

    EIN 237396180 · Headquarters: TORRINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Nutmeg Division Northeastern Region National Model Railroad Assn Inc

    EIN 061597308 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Nutmeg Flying Club Inc

    EIN 736500567 · Headquarters: Stratford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Nutmeg German Shorthaired Pointer Club Inc

    EIN 223116287 · Headquarters: COLCHESTER, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  23. Nutmeg Group of Cpa Firms

    EIN 222870369 · Headquarters: BRANFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Nutmeg Hamfest Alliance Inc

    EIN 061517822 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Nutmeg Housing Development Corporation

    EIN 061246167 · Headquarters: North Haven, CT, US · Housing & Shelter · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  26. Nutmeg Independent Labor Union Cheshire Town Hall Employees

    EIN 333894263 · Headquarters: CHESHIRE, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Nutmeg Land Trust Inc

    EIN 061594523 · Headquarters: Torrington, CT, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  28. Nutmeg Miata Club Inc

    EIN 800789291 · Headquarters: Tolland, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Nutmeg Order 106 Sword of Bunker Hill Inc

    EIN 222535954 · Headquarters: MANCHESTER, CT, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  30. Nutmeg Portuguese Water Dog

    EIN 061384665 · Headquarters: Higganum, CT, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Nutmeg Public Access Television Inc

    EIN 061306922 · Headquarters: FARMINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Nutmeg R C Flyers Inc

    EIN 611639425 · Headquarters: New Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Nutmeg Rabbit Breeders Association

    EIN 352288338 · Headquarters: north haven, CT, US · Animal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  34. Nutmeg Sailing Society

    EIN 320271831 · Headquarters: Berlin, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Nutmeg Section Institute of Food Technologists

    EIN 066109870 · Headquarters: Seymour, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Nutmeg Senior Rides Inc

    EIN 260302801 · Headquarters: East Windsor, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Nutmeg Sportsmens Club Inc

    EIN 061309530 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Nutmeg State African Violet Society

    EIN 753259340 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Nutmeg State Financial Credit Union

    EIN 060655039 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Nutmeg State Orchid Society

    EIN 830511469 · Headquarters: Farmington, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Nutmeg Volunteer Jr Ancient Fife & Drum Corps Inc

    EIN 222804844 · Headquarters: Groton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Nutmeg Womens Soccer League Inc

    EIN 272228349 · Headquarters: West Haven, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Nutrition Security Solutions Inc

    EIN 844509795 · Headquarters: NORTH HAVEN, CT, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Nuts About Health Inc

    EIN 562513796 · Headquarters: New Haven, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Nuvance Health Medical Practice CT Inc

    EIN 061137531 · Headquarters: Danbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. Nve Bank Community Foundation

    EIN 333441671 · Headquarters: NAUGATUCK, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  47. Nwct Adult Day Center Inc

    EIN 884367718 · Headquarters: LITCHFIELD, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Nxthvn

    EIN 830601747 · Headquarters: New Haven, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Nxys Neurodiverse Exceptional Youth Society Inc

    EIN 333795066 · Headquarters: Madison, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Ny Ct Association of Tax Professionals Inc

    EIN 133415450 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Ny Metro Ashi Inc

    EIN 112908710 · Headquarters: Woodbury, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Ny State Cooperative & Experiential Education Association

    EIN 900594306 · Headquarters: Ridgefield, CT, US · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. Nyc Makerspace

    EIN 824264610 · Headquarters: mystic, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  54. Nyr Jorvik Vikings

    EIN 922355731 · Headquarters: Danbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. O'connell Family Foundation Inc C/o Daniel S O'connell

    EIN 133745912 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  56. O'meara Foundation Inc

    EIN 066034580 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. O-Tatsu Taiko Inc Co Sandra Shen

    EIN 208108438 · Headquarters: Stamford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  58. Oak Cliff Cemetery C/o Barbara Lynes Treasurer

    EIN 060476630 · Headquarters: SEYMOUR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Oak Grove Beach Community Association Inc

    EIN 471129777 · Headquarters: Niantic, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Oak Grove Montessori Elementary School Inc

    EIN 061045034 · Headquarters: Mansfield Center, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Oak Hill Cemetery Association

    EIN 060717300 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Oak Hills Mens Golf Association Inc

    EIN 223108754 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. Oak Hills Womens Golf Association

    EIN 061058234 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Oak Lane Charities Inc

    EIN 202405135 · Headquarters: Woodbridge, CT, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  65. Oak Lawn Cemetery Association

    EIN 060688985 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Oak Tree Inc

    EIN 384043459 · Headquarters: GREENWICH, CT, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Oak View Housing Inc

    EIN 061581677 · Headquarters: NORTH HAVEN, CT, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Oakdale Elementary School Pto

    EIN 884005156 · Headquarters: Oakdale, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Oakdale Fire Company Inc

    EIN 060987699 · Headquarters: OAKDALE, CT, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Oakmere Foundation Inc

    EIN 462867328 · Headquarters: Greenwich, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  71. OakTree Crew

    EIN 844462672 · Headquarters: Norwich, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Oakville Watertown Youth Athletic Association

    EIN 141986338 · Headquarters: Watertown, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Oakwood Soccer Club Inc

    EIN 223029731 · Headquarters: GLASTONBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Oasis Global Missions Association Inc

    EIN 463784187 · Headquarters: GUILFORD, CT, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Obidimma Okobi Memorial Foundation Inc

    EIN 823746778 · Headquarters: Hamden, CT, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Obie Harrington - Howes Foundation Inc

    EIN 133980775 · Headquarters: DARIEN, CT, USA · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  77. Observatory Orchestra

    EIN 651194573 · Headquarters: Fairfield, CT, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  78. Occoquan Group Inc

    EIN 933887441 · Headquarters: Stamford, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. Ocd Connecticut - International Obsessive Compulsive Disorder Foun

    EIN 463108535 · Headquarters: Trumbull, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Ocean Blue Sailing Foundation

    EIN 921582719 · Headquarters: Riverside, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Ocean Connect Inc

    EIN 920453960 · Headquarters: Wilton, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Ocean Exploration Trust Inc

    EIN 830488383 · Headquarters: NEW LONDON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Ocean Technology Foundation Inc

    EIN 061494809 · Headquarters: Mystic, CT, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Oceania Digambara

    EIN 460816231 · Headquarters: NORWALK, CT, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. OceanX

    EIN 830757695 · Headquarters: WESTPORT, CT, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Oceanx Education Inc

    EIN 991603704 · Headquarters: WESTPORT, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Ochiltree Foundation for Animal Welfare Inc

    EIN 843991110 · Headquarters: FAIRFIELD, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  88. Oconnell Pto Llc

    EIN 821754969 · Headquarters: EAST HARTFORD, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  89. Octagon Performance Group Inc

    EIN 834049658 · Headquarters: FAIRFIELD, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. October Dream Animal Sanctuary and Rescue Inc

    EIN 932231294 · Headquarters: Voluntown, CT, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. October Gardens Yoga and Meditation Center Incorporated

    EIN 824877599 · Headquarters: goshen, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  92. Odd Fellows Faith Hope and Charity Fund Inc

    EIN 262507307 · Headquarters: GROTON, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  93. Odd Fellows Healthcare Inc

    EIN 262507180 · Headquarters: GROTON, CT, USA · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990

  94. Odd Fellows Home of Connecticut Inc

    EIN 060646771 · Headquarters: GROTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  95. Oddfellows Playhouse

    EIN 060964602 · Headquarters: MIDDLETOWN, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Odies Orchard Hill Rescue Inc

    EIN 473504632 · Headquarters: SIMSBURY, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Odin Village Inc

    EIN 261186944 · Headquarters: Enfield, CT, US · Housing & Shelter · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  98. Odyssey Community School Inc

    EIN 061452142 · Headquarters: MANCHESTER, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Odyssey Family Executive Center of South Norwalk

    EIN 833524612 · Headquarters: Norwalk, CT, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Odyssey Group Foundation

    EIN 208493704 · Headquarters: STAMFORD, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

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