Unknown & Unclassified nonprofits in Connecticut

Unknown & Unclassified nonprofits in Connecticut. Browse 7,402 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. Association of Dupont Retirees Inc Co Edward Stone Law Pc

    EIN 834581999 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Association of Notre Dame Clubs Inc - Fairfield County

    EIN 311075384 · Headquarters: NORWALK, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Association of Notre Dame Clubs Inc - Greater Hartford

    EIN 311075379 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Association of Notre Dame Clubs Inc - New Haven

    EIN 311375131 · Headquarters: Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Association of Notre Dame Clubs Inc - Rhode Island & SE Massachusetts

    EIN 311075493 · Headquarters: Mystic, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Association of Notre Dame Clubs Inc - Southeastern Connecticut

    EIN 311375132 · Headquarters: Ivoryton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Association of Operating Room Nurses Inc

    EIN 061163168 · Headquarters: DANBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  8. Association of Operating Room Nurses Inc

    EIN 550865049 · Headquarters: windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. Association of Operating Room Nurses Inc

    EIN 742653829 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Association of Operating Room Nurses Inc

    EIN 742715141 · Headquarters: Beacon Falls, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  11. Association of Retired Teachers of Ct Inc

    EIN 060857996 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Association of School Business Officials International

    EIN 222989991 · Headquarters: Niantic, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Association of School Nurses of Connecticut Inc

    EIN 222559695 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Association of Technical & Supervisory Professionals

    EIN 237379561 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Association of the Free Library and Reading Room of Rowayton Inc

    EIN 060736950 · Headquarters: ROWAYTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Association of the Woodbury Fire Department Inc

    EIN 222611577 · Headquarters: WOODBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Astrological Society of Connecticut

    EIN 061015613 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Astronomical Society of New Haven Inc

    EIN 061268864 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Asylum Hill Family Medicine Center Inc

    EIN 061450170 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  20. Atlantic States Water & Wastewater Assoc

    EIN 010502709 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Atrium Society

    EIN 770015182 · Headquarters: Westbrook, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  22. Augustana Homes Inc

    EIN 066085508 · Headquarters: Bridgeport, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Aunt Hack Swim Club Inc

    EIN 060898507 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Aunt Terry Inc

    EIN 455574648 · Headquarters: FAIRFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  25. Aurelian Honor Society Incorporated

    EIN 066071632 · Headquarters: NEW HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Austin-healey Club of America Beverly Sealand Treasurer

    EIN 621069864 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Auto Body Association of Connecticut Inc

    EIN 061247029 · Headquarters: PROSPECT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Automotive Museum Inc

    EIN 066077938 · Headquarters: EAST BERLIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  29. Auxiliary of the Lawrence and Memorial Hospital Inc

    EIN 060983682 · Headquarters: Waterford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Avery-stoddard Cemetery Association Inc

    EIN 066044486 · Headquarters: Ledyard, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Aviglianese Athletic Club Inc

    EIN 066058887 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Avon Chamber of Commerce Inc

    EIN 061026616 · Headquarters: Avon, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Avon Chapter of Unico National Inc

    EIN 061101468 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Avon Free Public Library Inc

    EIN 060001957 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Avon Friends for Equity Inc

    EIN 923123791 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Avon High School Booster Club Inc

    EIN 061244290 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Avon Historical Society Inc

    EIN 237346729 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Avon Little League

    EIN 061423314 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Avon Old Farms School Foundation

    EIN 066386828 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Avon Soccer Club

    EIN 223236840 · Headquarters: Weatogue, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Axe-Houghton Foundation

    EIN 136200200 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  42. Axion Cushing-fulton Corporation

    EIN 223081085 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ayers Family Foundation

    EIN 873596254 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  44. Azeri America Inc Azerbaijani Society of North America

    EIN 463407236 · Headquarters: Farmington, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  45. B L Manger Foundation C/o Renee Manger

    EIN 237405994 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  46. Backus Federation of Nurses

    EIN 460605477 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Backus Health Care Inc

    EIN 222481794 · Headquarters: Norwich, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Bacon & Hinkley Home Inc

    EIN 060662103 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  49. Bakerville Library Association Inc

    EIN 061329346 · Headquarters: BAKERVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Bala Music and Dance Association L Williams

    EIN 133249483 · Headquarters: LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  51. Baldwin Foundation Trust

    EIN 566055565 · Headquarters: Lakeville, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  52. Baldwin Park Association

    EIN 061335847 · Headquarters: Terryville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Baldwin Yacht Club

    EIN 066070348 · Headquarters: MYSTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Bank Compliance Association of Connecticut Inc

    EIN 061257568 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Banksville Community House Inc

    EIN 060688915 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Bantam Cinema & Arts Center Inc

    EIN 853849864 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Bantam Civic Association Incorporated

    EIN 223308676 · Headquarters: Bantam, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Bantam Lake Ski Club Incorporated

    EIN 060925342 · Headquarters: Bantam, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Bantam Lake Yacht Club Inc

    EIN 352877282 · Headquarters: Bantam, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Bantam Vigilance Society

    EIN 300647762 · Headquarters: Bantam, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Baptist Church of Danbury

    EIN 066059522 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Baqis Fellowship Inc

    EIN 815306034 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Bar Association of Greenwich Inc

    EIN 061244737 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Barbaras House Inc

    EIN 060703570 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Barber Ministries Llc

    EIN 851428046 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  66. Barkhamsted Center Cemetery Association Inc

    EIN 060701793 · Headquarters: Barkhamsted, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Barkhamsted Forks Senior Center Lio Ns Club

    EIN 422847773 · Headquarters: Riverton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Barkhamsted Historical Society Inc

    EIN 237195789 · Headquarters: Pleasant Valley, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Barkhamsted Parent Teacher Organization

    EIN 222853578 · Headquarters: Barkhamsted, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Barlow Mtn Pta of Ridgefield Ct

    EIN 900083640 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Barn Sale Inc

    EIN 066086866 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Barnabas Foundation Inc

    EIN 061391284 · Headquarters: Tariffville, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  73. Barnes Aerospace Foundation Inc

    EIN 237339727 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. Bartels Trust for Public Education in New Haven

    EIN 066394456 · Headquarters: HAMDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Bartlett Tree Foundation Inc

    EIN 222770557 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  76. Bbb Foundation of Connecticut Inc

    EIN 352582386 · Headquarters: CROMWELL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Bbrc Charitable Fund Inc

    EIN 272918542 · Headquarters: East Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  78. Beacon Falls Merchants Association

    EIN 264260946 · Headquarters: BEACON FALLS, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  79. Beardsley & Memorial Library

    EIN 060662106 · Headquarters: WINSTED, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Beatrice E Neff Trust Under Will Fbo

    EIN 816903647 · Headquarters: ESSEX, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  81. Beautiful Life Non Profit Adult Care Services

    EIN 851650003 · Headquarters: Woodbridge, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Beaver Dam Association of Stratford Inc

    EIN 060609958 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Beaverdale Memorial Park Inc

    EIN 060256610 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  84. Beaverdale Memorial Park Inc Trust

    EIN 066021577 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Bedford Family Charitable Trust C/o Steven Bedford Trustee

    EIN 866255502 · Headquarters: NEW HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  86. Bedford Middle School Pta C/o Silvia Luna

    EIN 060994189 · Headquarters: WESTPORT, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Beechwood Park Recreation Association Inc

    EIN 237237550 · Headquarters: Killingworth, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  88. Beginning Experience International Ministry Center

    EIN 383944081 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  89. Behavioral Medicine Institute Inc

    EIN 222567079 · Headquarters: New Canaan, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Bell City Rifle Club Inc

    EIN 061279274 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. Belltown Elderly Housing Inc C/o New Neighborhoods Inc

    EIN 223110627 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Belvedere Foundation

    EIN 136992357 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  93. Ben Bronz Academy Inc

    EIN 061185278 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Benevolent & Protective Order of Elks Connecticut Elks Association

    EIN 066072624 · Headquarters: COVENTRY, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  95. Benevolent & Protective Order of Elks Lodge No 19

    EIN 060258856 · Headquarters: Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Benevolent & Protective Order of Elks of the USA

    EIN 060258889 · Headquarters: Middletown, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. Benevolent and Protective Order of Elks #1706

    EIN 060619762 · Headquarters: DANIELSON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Benevolent Protective Order of Elks 844

    EIN 060331988 · Headquarters: WINSTED, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Benevolent Protective Order of Elks Lodge 25 New Haven Ct

    EIN 060258888 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Benhaven Inc

    EIN 060840436 · Headquarters: NORTH HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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