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. Save the Children of Victims of Wars

    EIN 452808203 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  2. Save the Kid Fund Inc

    EIN 061158140 · Headquarters: EAST LYME, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Savin Rock Community School PTA

    EIN 060994072 · Headquarters: West Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Saxton B Little Free Library Inc

    EIN 060851138 · Headquarters: COLUMBIA, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Scandinavian Club Inc

    EIN 061057137 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Scare Crew Productions, Inc

    EIN 461920603 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Schaghticoke Band-aides Inc

    EIN 061056558 · Headquarters: New Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Scherer Foundation Inc

    EIN 066080258 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. School Administrators Association of New Haven Incorporated

    EIN 061354230 · Headquarters: North Haven, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. School Administrators of Waterbury C/o Melissa Digiovanni

    EIN 061052601 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. School on the Green

    EIN 060885844 · Headquarters: Litchfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  12. Schubert Club of Fairfield County Inc

    EIN 066043668 · Headquarters: Darien, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Scientific Paranormal Inc

    EIN 453619563 · Headquarters: Middletown, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  14. Scotland Historical Society

    EIN 060970243 · Headquarters: SCOTLAND, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Scouting America Connecticut Rivers Council

    EIN 060662110 · Headquarters: Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Scouting for Our Community Inc

    EIN 422310769 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Scully-greene-dunn Family Association

    EIN 061468487 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sea Cove Foundation Inc

    EIN 471914807 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Second Armored Division Association

    EIN 953312773 · Headquarters: NAUGATUCK, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  20. Second Century Fund Inc of Beta

    EIN 061389750 · Headquarters: BRANFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. Second Company Governors Horse Guard

    EIN 222786804 · Headquarters: Newtown, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  22. Second New Light Original Free Will Baptist Church

    EIN 222996363 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Securing Safe Food Corporation

    EIN 852281438 · Headquarters: Glastonbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Security Traders Assoc of Ct

    EIN 060970374 · Headquarters: Wilton, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Sedgwick Cedars Corporation

    EIN 474242266 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  26. See Me Inc

    EIN 272305103 · Headquarters: East Granby, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  27. Seiu Local 2001 Montville Secretaries

    EIN 884252809 · Headquarters: OAKDALE, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Self Inc

    EIN 061240040 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Senior Citizens of Avon

    EIN 222481030 · Headquarters: Avon, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Senior Citizens of Newington

    EIN 800553283 · Headquarters: NEWINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  31. Senior Transportation Services Inc

    EIN 061043430 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Sequin Building Association of Newington Connecticut Inc

    EIN 066062878 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Sergeant William Harlow Family Association Inc

    EIN 020452053 · Headquarters: Hawleyville, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Service Employees International Union 1199 New England Health Care Employee

    EIN 060991885 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Serving Overseas Inc

    EIN 471847861 · Headquarters: Ashford, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Seton Collaborative Corporation

    EIN 874553938 · Headquarters: Shelton, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Sexual Assault Crisis Center of Eastern Connecticut Inc

    EIN 061033609 · Headquarters: WILLIMANTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Seymour Ambulance Association Inc

    EIN 237359084 · Headquarters: SEYMOUR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Seymour Fathers Club Inc

    EIN 223055498 · Headquarters: Seymour, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Seymour Fish and Game Club Inc

    EIN 066045487 · Headquarters: OXFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Seymour High Cross-country Parent Organization

    EIN 371575050 · Headquarters: Seymour, CT, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  42. Seymour Historical Society Inc

    EIN 222986657 · Headquarters: SEYMOUR, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Seymour Police Union

    EIN 066107714 · Headquarters: SEYMOUR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Sgt Jerry Smotrycz Post 10732 Veterans of Foreign Wars of the Un

    EIN 222778871 · Headquarters: Berlin, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  45. Shambhala USA

    EIN 742696449 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  46. Sharon Country Club Inc

    EIN 060531925 · Headquarters: SHARON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Sharon Day Care Center Inc

    EIN 222595916 · Headquarters: SHARON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Sharon Historical Society Inc

    EIN 066050703 · Headquarters: SHARON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. Sharon Ridge Expansion Corporation

    EIN 465761700 · Headquarters: SOUTHINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. She Leads Justice Inc

    EIN 060913214 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Sheet Metal Industry Apprentice & Training Fund

    EIN 237412739 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Sheet Metal Industry Fund Inc

    EIN 066068792 · Headquarters: Granby, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Shelton Art League Inc

    EIN 066053722 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Shelton Economic Development Corporation

    EIN 061092685 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Shelton High School Fathers Club

    EIN 473133506 · Headquarters: SHELTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Shelton High School Girls Soccer

    EIN 822155089 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  57. Shelton High School Marching Gaels Band Parents Association Inc

    EIN 061083677 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Shelton Land Conservation Trust

    EIN 237126293 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Shelton Police Association

    EIN 061523209 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Shelton Police Union Inc

    EIN 061223286 · Headquarters: Shelton, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  61. Shenandoah Foundation C/o Walter Berlingo and Company

    EIN 223259552 · Headquarters: DARIEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  62. Shennecossett Yacht Club Inc

    EIN 060533275 · Headquarters: GROTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Shepard Meadows Equestrian Center Inc

    EIN 320155596 · Headquarters: BRISTOL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Sherman Higher Education Fund Inc

    EIN 066087495 · Headquarters: Sherman, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Sherman Library Association Inc

    EIN 060689695 · Headquarters: SHERMAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Sherman Thursday Aa Big Book Group

    EIN 473450196 · Headquarters: Gaylordsville, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  67. Sherman Volunteer Fire Department

    EIN 061032912 · Headquarters: SHERMAN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Shidogakuin Ltd

    EIN 133696712 · Headquarters: RIVERSIDE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Shlomo Zalman & Shoshana Strochlitz Foundation

    EIN 060946153 · Headquarters: WATERFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  70. Shore and Country Club Incorporated

    EIN 060534515 · Headquarters: EAST NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  71. Shoreline Adult Soccer League Inc

    EIN 061380197 · Headquarters: Cheshire, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Shoreline Amateur Radio Club

    EIN 060957902 · Headquarters: WESTBROOK, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Shoreline Fc Foundation Inc

    EIN 472005679 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  74. Shoreline Outdoor Education Center

    EIN 061074154 · Headquarters: Guilford, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  75. Shoreline Sailing Club

    EIN 061444147 · Headquarters: Westbrook, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Shoshannascheraga Library Inc

    EIN 222999234 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Shovak Catholic Sokol Group 2

    EIN 611762806 · Headquarters: huntington, CT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. Shriners International

    EIN 270199244 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Shriners International

    EIN 301370695 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Shriners International

    EIN 320748268 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Shriners International

    EIN 372106512 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Shriners International

    EIN 612227491 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Shriners International

    EIN 901740207 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Shriners International

    EIN 901744402 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Shriners International

    EIN 901744414 · Headquarters: STRATFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Shriners International Pyramid Shriners Group Return

    EIN 237401555 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  87. Shuttle Meadow Country Club

    EIN 060669704 · Headquarters: KENSINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Sigma Alpha Epsilon Fraternity

    EIN 263654431 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Sigma Alpha Epsilon Fraternity

    EIN 611607392 · Headquarters: West Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Sigma Alpha Epsilon Fraternity

    EIN 872710325 · Headquarters: Storrs, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Sigma Chi Alpha

    EIN 881995010 · Headquarters: Bridgeport, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. Sigma Chi Fraternity

    EIN 061209372 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Sigma Chi Fraternity

    EIN 237222167 · Headquarters: Woodbridge, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sigma Chi Fraternity

    EIN 822676922 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Sigma Chi Fraternity

    EIN 831019228 · Headquarters: WEST HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Sigma Chi New Haven Alumni Chapter

    EIN 871767285 · Headquarters: Burlington, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  97. Sigma Gamma Rho Sorority

    EIN 992638214 · Headquarters: WEST HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Sigma Gamma Rho Sorority Inc

    EIN 263107201 · Headquarters: STORRS, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Sigma Gamma Rho Sorority Inc

    EIN 264756087 · Headquarters: DERBY, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Sigma Gamma Rho Sorority Inc

    EIN 264768667 · Headquarters: HAMDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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