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. Road Runners Club of America

    EIN 850895094 · Headquarters: Greenwich, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Roaring 20'S Antique & Classic Car Club Inc

    EIN 061000997 · Headquarters: PLANTSVILLE, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Roaring Brook Nature Center Auxiliary

    EIN 222596568 · Headquarters: CANTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Robert & Dale Rosen Charitable Foundation Tr U/a 8/05/92

    EIN 136997530 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  5. Robert and Lou Ann Giunta Foundation

    EIN 061468493 · Headquarters: WESTPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Robert G Burton Charitable Foundation

    EIN 061354439 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  7. Robert W Brown Fund C/o Lanxess Solutions

    EIN 061269320 · Headquarters: NAUGATUCK, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  8. Roberts Helen Tr Ua Fbo Nh Sym C/o David Migani Trustee

    EIN 066195904 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Robins Family Foundation

    EIN 416033422 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  10. Rochambeau Elms Vfw Post 2083

    EIN 066069670 · Headquarters: EAST HARTFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Rockledge Mens Club

    EIN 061158153 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Rockrimmon Country Club Inc

    EIN 060637078 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  13. Rockville Fish & Game Club Inc

    EIN 066014127 · Headquarters: ROCKVILLE, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Rockville Lodge # 1359 BPOE

    EIN 060258975 · Headquarters: Rockville, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Rocky Hill Chamber of Commerce Inc

    EIN 061256572 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  16. Rocky Hill Garden Club

    EIN 300563945 · Headquarters: rocky hill, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Rocky Hill Police Union

    EIN 237324605 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Rocky Hill Volunteer Ambulance Asso

    EIN 237402112 · Headquarters: Rocky Hill, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Rocky Point Club Inc

    EIN 060688038 · Headquarters: OLD GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  20. Rocky-Hill Historical Society Inc

    EIN 066068948 · Headquarters: Rocky Hill, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Rogers Rangers Inc

    EIN 010963565 · Headquarters: higganum, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  22. Rolling Hills Country Club Inc

    EIN 060769554 · Headquarters: WILTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Rolling Hills Recreation Club

    EIN 800304513 · Headquarters: Storrs Mansfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Romance Writers of America Incorporated

    EIN 020561878 · Headquarters: Bolton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  25. Romance Writers of America Incorporated

    EIN 061637624 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. Ronald A Garrison Foundation Inc

    EIN 413479798 · Headquarters: Ashford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Ronald N Dubin Foundation

    EIN 066366234 · Headquarters: GREENWICH, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. Roncalli Institute

    EIN 060972317 · Headquarters: PORTLAND, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  29. Roncalli Institute Inc Group Return

    EIN 061090560 · Headquarters: PORTLAND, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  30. Rondo Music Society Inc

    EIN 222495855 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Roofers Local No 9 Health Fund

    EIN 066061613 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Roofers Local No 9 Joint Apprentice and Training Fund

    EIN 061424383 · Headquarters: EAST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Rose City Networkers Inc

    EIN 010891045 · Headquarters: FRANKLIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Rose Hill Memorial Park Inc

    EIN 060515055 · Headquarters: ROCKY HILL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Rose of Sharon Temple No 1170

    EIN 270329366 · Headquarters: NORWALK, CT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Rotary Club of Ansonia Seymour & Oxford Ct Inc

    EIN 066103655 · Headquarters: Seymour, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Rotary Club of Avon-canton Inc

    EIN 237278431 · Headquarters: AVON, CT, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  38. Rotary Club of Bridgeport

    EIN 066031794 · Headquarters: BRIDGEPORT, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Rotary Club of Danbury

    EIN 066045943 · Headquarters: DANBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Rotary Club of Danbury Charitable Trust

    EIN 066098669 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Rotary Club of Derby-shelton Inc

    EIN 061303583 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Rotary Club of Diversity and Environment

    EIN 874296938 · Headquarters: Durham, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. Rotary Club of East Hampton

    EIN 066103702 · Headquarters: EAST HAMPTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Rotary Club of Glastonbury Ct Inc

    EIN 066103827 · Headquarters: GLASTONBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Rotary Club of Hartford Do Good Chest

    EIN 066071603 · Headquarters: Vernon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Rotary Club of Mystic Inc

    EIN 066103789 · Headquarters: MYSTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Rotary Club of New Britain-berlin

    EIN 066043330 · Headquarters: NEW BRITAIN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Rotary Club of North Haven

    EIN 066066076 · Headquarters: NORTH HAVEN, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Rotary Club of Old Saybrook Inc

    EIN 066063853 · Headquarters: OLD SAYBROOK, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Rotary Club of Ridgefield

    EIN 061212506 · Headquarters: RIDGEFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Rotary Club of Simsbury Granby Rotary Club of Simsbury Granby

    EIN 066054328 · Headquarters: SIMSBURY, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Rotary Club of the Torrington and Winsted Areas Inc

    EIN 066037788 · Headquarters: TORRINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Rotary Club of Thomaston Inc

    EIN 066103658 · Headquarters: THOMASTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Rotary Club of Trumbull

    EIN 237321959 · Headquarters: TRUMBULL, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. Rotary Club of Wallingford

    EIN 066068955 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Rotary Club of West Hartford Service Chest Inc

    EIN 510183460 · Headquarters: WEST HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Rotary Club of West Haven C/o William Sapienza

    EIN 066103649 · Headquarters: WEST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Rotary Club of Wethersfield Helping Hand Fund

    EIN 066058697 · Headquarters: WETHERSFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Rotary District 7980 C/o Adam J Kasowitz Cpa

    EIN 800355652 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Rotary International

    EIN 060516425 · Headquarters: Vernon, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Rotary International

    EIN 060912960 · Headquarters: West Suffield, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  62. Rotary International

    EIN 061281357 · Headquarters: Westport, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Rotary International

    EIN 061300517 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Rotary International

    EIN 061310295 · Headquarters: Danielson, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Rotary International

    EIN 061349032 · Headquarters: Wethersfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Rotary International

    EIN 061388579 · Headquarters: Stonington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Rotary International

    EIN 061473015 · Headquarters: Monroe, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Rotary International

    EIN 061621394 · Headquarters: Waterford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Rotary International

    EIN 061734680 · Headquarters: Berlin, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Rotary International

    EIN 066046407 · Headquarters: PUTNAM, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Rotary International

    EIN 066047145 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Rotary International

    EIN 066048641 · Headquarters: MIDDLEBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Rotary International

    EIN 066068949 · Headquarters: DARIEN, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Rotary International

    EIN 066068953 · Headquarters: Stamford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Rotary International

    EIN 066069287 · Headquarters: Moosup, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Rotary International

    EIN 066070043 · Headquarters: New Canaan, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Rotary International

    EIN 066070286 · Headquarters: Hamden, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Rotary International

    EIN 066087070 · Headquarters: New Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Rotary International

    EIN 066103651 · Headquarters: Plainville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Rotary International

    EIN 066103656 · Headquarters: Salisbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Rotary International

    EIN 066103659 · Headquarters: Enfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Rotary International

    EIN 066103662 · Headquarters: Somers, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  83. Rotary International

    EIN 066103790 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Rotary International

    EIN 066103795 · Headquarters: NIANTIC, CT, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  85. Rotary International

    EIN 066103801 · Headquarters: North Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  86. Rotary International

    EIN 066103806 · Headquarters: Ansonia, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. Rotary International

    EIN 066103810 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Rotary International

    EIN 066103820 · Headquarters: ESSEX, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Rotary International

    EIN 222564612 · Headquarters: Newington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Rotary International

    EIN 237219409 · Headquarters: Southbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Rotary International

    EIN 237228471 · Headquarters: Orange, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Rotary International

    EIN 237445204 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Rotary International

    EIN 363981000 · Headquarters: Terryville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Rotary International Bloomfield

    EIN 237182509 · Headquarters: Bloomfield, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Rotary International District 7230

    EIN 136219583 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Rotary International District 7890

    EIN 237396897 · Headquarters: FALLS VILLAGE, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Rotary International Middletown

    EIN 066103703 · Headquarters: MIDDLETOWN, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Rotary International New London

    EIN 066103797 · Headquarters: NEW LONDON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Rotary International Rockville Rotary Cl

    EIN 066103665 · Headquarters: VERNON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Rotary International Stamford

    EIN 066047075 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

First page and all pages