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. Kappa Mu Chapter of Chi Omega Fraternity

    EIN 453028228 · Headquarters: New Canaan, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Kappa Mu Chapter of Chi Omega House Corporation Board

    EIN 453532919 · Headquarters: New Canaan, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  3. Kappa Psi Pharmaceutical Fraternity

    EIN 066069654 · Headquarters: SOMERS, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Kappa Psi Pharmaceutical Fraternity

    EIN 465128947 · Headquarters: Storrs, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. Kappa Psi Pharmaceutical Fraternity

    EIN 472993250 · Headquarters: Ledyard, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  6. Kappa Sigma Fraternity

    EIN 821483886 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. Kappa Sigma Fraternity

    EIN 900759773 · Headquarters: HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Kappa Sigma Sacred Heart Colony

    EIN 264688157 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  9. Karen and Kevin Lynch Foundation

    EIN 921361140 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  10. Karen K Foundation

    EIN 823240890 · Headquarters: EAST WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  11. Kasulke Charitable Remainder Trust Ii

    EIN 066520309 · Headquarters: NORWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Katherine Lilly Conroy Charitable Trust Fbo

    EIN 222756407 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Kathryn Cape and Maurice Cape Scholarship

    EIN 431428750 · Headquarters: Brookfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. Kathryn Kollar & Co Inc

    EIN 060990708 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  15. Kb Ambulance Corps Inc

    EIN 061017053 · Headquarters: DANIELSON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Keefe Family Foundation

    EIN 133520397 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  17. Keeney Foundation Inc Nancy Marikar Executive Secretary

    EIN 066033949 · Headquarters: SOUTH WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  18. Kellogg Lodge No 5 Prince Hall Grand Lodge St of Ct

    EIN 901107056 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Kelsey Kindred

    EIN 222768709 · Headquarters: Higganum, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Ken Soubry Foundation Inc C/o Elvira M Albert Cpa

    EIN 061383531 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  21. Kenmore Road Association Incorporated

    EIN 066081525 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Kenneth Gottesfeld-charles Hohler Memorial Foundation

    EIN 860594433 · Headquarters: WOODBRIDGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Kenneth R Peterson Mem Sch Tr Fund

    EIN 061311748 · Headquarters: WATERBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Kent Cemetery Assoc Inc

    EIN 060413638 · Headquarters: Kent, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Kent Community Nursery School Inc

    EIN 060887934 · Headquarters: KENT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Kent Historical Society Inc

    EIN 060850105 · Headquarters: KENT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Kent Players

    EIN 264070871 · Headquarters: Kent, CT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  28. Kent Singers Inc

    EIN 061073156 · Headquarters: KENT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Key Human Services Inc

    EIN 061259340 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Keys Foundation Inc

    EIN 223026241 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  31. Keystone House Inc

    EIN 237228237 · Headquarters: NORWALK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Khmer Health Advocates Inc

    EIN 061072240 · Headquarters: Naugatuck, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Kids in Crisis Inc

    EIN 061027885 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Kids of Chatham Organization Inc

    EIN 061239860 · Headquarters: EAST HAMPTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Kids Our Future Trust Fund

    EIN 061340808 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. Kief Protective Mutual Benefit Association

    EIN 060626338 · Headquarters: BLOOMFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Killingly Business Association Inc

    EIN 061303304 · Headquarters: Killingly, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Killingly Little League Inc

    EIN 061052908 · Headquarters: DAYVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  39. Killingworth Ambulance Association

    EIN 060949842 · Headquarters: KILLINGWORTH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Killingworth Land Conservation Trust Inc

    EIN 237315361 · Headquarters: KILLINGWORTH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Killingworth Library Association Inc

    EIN 237050680 · Headquarters: Killingworth, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Killingworth Nursery School Association

    EIN 060839783 · Headquarters: KILLINGWORTH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Killingworth Scholarship Assoc

    EIN 222477376 · Headquarters: Killingworth, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Killingworth Volunteer Fire Co Inc

    EIN 060998909 · Headquarters: KILLINGWORTH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Kingdom Sisters Outreach Ministries Inc

    EIN 813597646 · Headquarters: BRIDGEPORT, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  46. Kings Highway School Pta C/o Andre Dassori

    EIN 060994200 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Kitemaug Orchard Association

    EIN 222489563 · Headquarters: UNCASVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Kitty Angels of Connecticut Inc

    EIN 223311218 · Headquarters: Coventry, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Kiwanis Club of Fairfield

    EIN 066069269 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Kiwanis Club of Meriden Inc

    EIN 066057053 · Headquarters: MERIDEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  51. Kiwanis Club of Milford Inc

    EIN 066070311 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Kiwanis Club of Southington Foundation

    EIN 816543199 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  53. Kiwanis Foundation of Meriden Connecticut Inc

    EIN 061032979 · Headquarters: MERIDEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Kiwanis International Inc

    EIN 060848331 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Kiwanis International Inc

    EIN 060849951 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Kiwanis International Inc

    EIN 061037445 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Kiwanis International Inc

    EIN 066043180 · Headquarters: Wilton, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Kiwanis International Inc

    EIN 066068557 · Headquarters: Newington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Kiwanis International Inc

    EIN 066068645 · Headquarters: BRIDGEPORT, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Kiwanis International Inc

    EIN 066070024 · Headquarters: WALLINGFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Kiwanis International Inc

    EIN 066070337 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Kiwanis International Inc

    EIN 237186031 · Headquarters: NORWALK, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Kiwanis International Inc

    EIN 300062850 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Kiwanis International Inc

    EIN 421686415 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  65. Kiwanis International Inc

    EIN 510169330 · Headquarters: Weston, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Kiwanis International Inc

    EIN 993528264 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Kiwanis International Inc Ko3644 the Kiwanis Club of Middletown

    EIN 066081387 · Headquarters: MIDDLETOWN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Klcei Pto

    EIN 454034415 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Klingberg Comprehensive Family Services Inc

    EIN 061370693 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Klingberg Comprehensive Program Services Inc

    EIN 060688316 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Knight Masons of the USA

    EIN 222537529 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Knights of Columbus

    EIN 010966513 · Headquarters: BOLTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Knights of Columbus

    EIN 020626515 · Headquarters: Goshen, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Knights of Columbus

    EIN 060416463 · Headquarters: Derby, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Knights of Columbus

    EIN 060528556 · Headquarters: New London, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Knights of Columbus

    EIN 060644083 · Headquarters: Taftville, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Knights of Columbus

    EIN 060664525 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Knights of Columbus

    EIN 060676902 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Knights of Columbus

    EIN 060732586 · Headquarters: North Grosvenordale, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Knights of Columbus

    EIN 060773786 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Knights of Columbus

    EIN 060813202 · Headquarters: East Hampton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Knights of Columbus

    EIN 060902623 · Headquarters: Windsor Locks, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Knights of Columbus

    EIN 060942206 · Headquarters: SEYMOUR, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Knights of Columbus

    EIN 060952094 · Headquarters: Simsbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Knights of Columbus

    EIN 060968993 · Headquarters: Litchfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Knights of Columbus

    EIN 060978049 · Headquarters: new milford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Knights of Columbus

    EIN 060981470 · Headquarters: N BRANFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Knights of Columbus

    EIN 060998044 · Headquarters: Gales Ferry, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Knights of Columbus

    EIN 061043213 · Headquarters: Old Saybrook, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Knights of Columbus

    EIN 061131940 · Headquarters: new haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Knights of Columbus

    EIN 061132910 · Headquarters: Oakdale, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Knights of Columbus

    EIN 061258838 · Headquarters: Plainville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Knights of Columbus

    EIN 061322831 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Knights of Columbus

    EIN 061328811 · Headquarters: KILLINGWORTH, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Knights of Columbus

    EIN 061348984 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  96. Knights of Columbus

    EIN 061371112 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Knights of Columbus

    EIN 061373837 · Headquarters: Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Knights of Columbus

    EIN 061386447 · Headquarters: EAST LYME, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Knights of Columbus

    EIN 061393563 · Headquarters: Moodus, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. Knights of Columbus

    EIN 061418352 · Headquarters: Southbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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