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. Ancient Accepted Scottish Rite of Free Masonry Nmj

    EIN 042737125 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Ancient Accepted Scottish Rite of Free Masonry Nmj

    EIN 066051747 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Ancient Accepted Scottish Rite of Free Masonry Nmj

    EIN 066051748 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Ancient Accepted Scottish Rite of Free Masonry Nmj

    EIN 066051749 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Ancient Accepted Scottish Rite of Free Masonry Nmj

    EIN 066052249 · Headquarters: Preston, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Ancient Accepted Scottish Rite of Freemasonry Nmj

    EIN 060663249 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Ancient Accepted Scottish Rite of Freemasonry Nmj

    EIN 237615951 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Ancient Accepted Scottish Rite of Freemasonry Nmj

    EIN 237615952 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Ancient Accepted Scottish Rite of Freemasonry Nmj Ct Council of Delib

    EIN 066051137 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Ancient Accepted Scottish Rite of Freemasonry Nmj Valley of Bridgepor

    EIN 237615953 · Headquarters: STRATFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Ancient Accepted Scottish Rite of Freemasonry Nmj Valley of Hartford

    EIN 061086328 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Ancient Accepted Scottish Rite of Freemasonry Nmj Valley of Hartford

    EIN 066050663 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Ancient Accepted Scottish Rite of Freemasonry Nmj Valley of Hartford

    EIN 066050664 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Ancient Accepted Scottish Rite of Freemasonry Nmj Valley of Hartford

    EIN 066050665 · Headquarters: NEWINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Ancient Burying Ground Association Inc

    EIN 222823727 · Headquarters: Hartford, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Ancient Egyptian Arabic Order Nobles Mystic Shrine of N & S Amer

    EIN 061071976 · Headquarters: NEW HAVEN, CT, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  17. Ancient Egyptian Arabic Order Nobles Mystic Shrine of N & S Amer

    EIN 237536609 · Headquarters: Hartford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  18. Ancient Free & Accepted Masons

    EIN 237144286 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Ancient Free & Accepted Masons Corinthian Lodge #104 Inc

    EIN 066048492 · Headquarters: STRATFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Ancient Free & Accepted Masons Of

    EIN 237025264 · Headquarters: MANCHESTER, CT, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  21. Ancient Free & Accepted Masons of 115

    EIN 237123648 · Headquarters: WEST HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Ancient Free & Accepted Masons of 49 Jerusalem Lodge

    EIN 237144299 · Headquarters: RIDGEFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Ancient Free & Accepted Masons of Conecticut

    EIN 066041174 · Headquarters: Preston, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Ancient Free & Accepted Masons of Connecticut

    EIN 041056519 · Headquarters: hamden, CT, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Ancient Free & Accepted Masons of Connecticut

    EIN 060243274 · Headquarters: Milford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Ancient Free & Accepted Masons of Connecticut

    EIN 060243309 · Headquarters: NIANTIC, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Ancient Free & Accepted Masons of Connecticut

    EIN 060997563 · Headquarters: Wolcott, CT, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Ancient Free & Accepted Masons of Connecticut

    EIN 061011946 · Headquarters: CROMWELL, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Ancient Free & Accepted Masons of Connecticut

    EIN 061012983 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Ancient Free & Accepted Masons of Connecticut

    EIN 066037109 · Headquarters: New London, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Ancient Free & Accepted Masons of Connecticut

    EIN 066038948 · Headquarters: SHELTON, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Ancient Free & Accepted Masons of Connecticut

    EIN 066042751 · Headquarters: naugatuck, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Ancient Free & Accepted Masons of Connecticut

    EIN 066044120 · Headquarters: Montville, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Ancient Free & Accepted Masons of Connecticut

    EIN 066044830 · Headquarters: Cheshire, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Ancient Free & Accepted Masons of Connecticut

    EIN 066045290 · Headquarters: Moosup, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Ancient Free & Accepted Masons of Connecticut

    EIN 066045594 · Headquarters: Clinton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Ancient Free & Accepted Masons of Connecticut

    EIN 066045814 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Ancient Free & Accepted Masons of Connecticut

    EIN 066046694 · Headquarters: WINSTED, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Ancient Free & Accepted Masons of Connecticut

    EIN 066046724 · Headquarters: Ellington, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Ancient Free & Accepted Masons of Connecticut

    EIN 066046726 · Headquarters: Meriden, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Ancient Free & Accepted Masons of Connecticut

    EIN 066046992 · Headquarters: Woodstock, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Ancient Free & Accepted Masons of Connecticut

    EIN 066047113 · Headquarters: Southington, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Ancient Free & Accepted Masons of Connecticut

    EIN 066047312 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Ancient Free & Accepted Masons of Connecticut

    EIN 066048349 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Ancient Free & Accepted Masons of Connecticut

    EIN 066049521 · Headquarters: NEW MILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Ancient Free & Accepted Masons of Connecticut

    EIN 066050019 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Ancient Free & Accepted Masons of Connecticut

    EIN 066050497 · Headquarters: EASTON, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Ancient Free & Accepted Masons of Connecticut

    EIN 066050658 · Headquarters: East Hampton, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  49. Ancient Free & Accepted Masons of Connecticut

    EIN 066050782 · Headquarters: Darien, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Ancient Free & Accepted Masons of Connecticut

    EIN 066052726 · Headquarters: Higganum, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Ancient Free & Accepted Masons of Connecticut

    EIN 066054928 · Headquarters: fairfield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  52. Ancient Free & Accepted Masons of Connecticut

    EIN 066060658 · Headquarters: Brooklyn, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  53. Ancient Free & Accepted Masons of Connecticut

    EIN 066060877 · Headquarters: Windsor, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Ancient Free & Accepted Masons of Connecticut

    EIN 066065063 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ancient Free & Accepted Masons of Connecticut

    EIN 066087076 · Headquarters: Willimantic, CT, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  56. Ancient Free & Accepted Masons of Connecticut

    EIN 066088010 · Headquarters: Niantic, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  57. Ancient Free & Accepted Masons of Connecticut

    EIN 066137636 · Headquarters: Branford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Ancient Free & Accepted Masons of Connecticut

    EIN 237056356 · Headquarters: Suffield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Ancient Free & Accepted Masons of Connecticut

    EIN 237104401 · Headquarters: West Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Ancient Free & Accepted Masons of Connecticut

    EIN 237107004 · Headquarters: Willimantic, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Ancient Free & Accepted Masons of Connecticut

    EIN 237107628 · Headquarters: Bethel, CT, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. Ancient Free & Accepted Masons of Connecticut

    EIN 237107639 · Headquarters: Niantic, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Ancient Free & Accepted Masons of Connecticut

    EIN 237107861 · Headquarters: Collinsville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Ancient Free & Accepted Masons of Connecticut

    EIN 237107862 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Ancient Free & Accepted Masons of Connecticut

    EIN 237107865 · Headquarters: Thompson, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  66. Ancient Free & Accepted Masons of Connecticut

    EIN 237110837 · Headquarters: Danbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ancient Free & Accepted Masons of Connecticut

    EIN 237120528 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ancient Free & Accepted Masons of Connecticut

    EIN 237131464 · Headquarters: Old Saybrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Ancient Free & Accepted Masons of Connecticut

    EIN 237144282 · Headquarters: Newington, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Ancient Free & Accepted Masons of Connecticut

    EIN 237144288 · Headquarters: BARKHAMSTED, CT, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  71. Ancient Free & Accepted Masons of Connecticut

    EIN 237144290 · Headquarters: Unionville, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Ancient Free & Accepted Masons of Connecticut

    EIN 237144291 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Ancient Free & Accepted Masons of Connecticut

    EIN 237144292 · Headquarters: Woodbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Ancient Free & Accepted Masons of Connecticut

    EIN 237144293 · Headquarters: WALLINGFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ancient Free & Accepted Masons of Connecticut

    EIN 237144294 · Headquarters: Sandy Hook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Ancient Free & Accepted Masons of Connecticut

    EIN 237144300 · Headquarters: PORTLAND, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Ancient Free & Accepted Masons of Connecticut

    EIN 237144302 · Headquarters: Norfolk, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  78. Ancient Free & Accepted Masons of Connecticut

    EIN 237144303 · Headquarters: New Canaan, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ancient Free & Accepted Masons of Connecticut

    EIN 237144306 · Headquarters: NEW HAVEN, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Ancient Free & Accepted Masons of Connecticut

    EIN 237144310 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Ancient Free & Accepted Masons of Connecticut

    EIN 237149844 · Headquarters: Vernon, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ancient Free & Accepted Masons of Connecticut

    EIN 237151685 · Headquarters: TORRINGTON, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Ancient Free & Accepted Masons of Connecticut

    EIN 237154791 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Ancient Free & Accepted Masons of Connecticut

    EIN 237221558 · Headquarters: Milford, CT, US · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  85. Ancient Free & Accepted Masons of Connecticut

    EIN 237240006 · Headquarters: Wethersfield, CT, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Ancient Free & Accepted Masons of Connecticut

    EIN 237537883 · Headquarters: Westport, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ancient Free & Accepted Masons of Connecticut

    EIN 371712079 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Ancient Free & Accepted Masons of Connecticut

    EIN 593788303 · Headquarters: Pawcatuck, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Ancient Free & Accepted Masons of Conneticut

    EIN 066062154 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  90. Ancient Free & Accepted Masons of Ct

    EIN 066039749 · Headquarters: WALLINGFORD, CT, USA · Mutual & Membership Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990

  91. Ancient Free & Accepted Masons of CT

    EIN 066057166 · Headquarters: Danbury, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. Ancient Free & Accepted Masons of Ct Grand Lodge

    EIN 060243277 · Headquarters: WALLINGFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Ancient Free & Accepted Masons of Ct Grand Lodge 11 St Pauls Lodge

    EIN 066036107 · Headquarters: LITCHFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Ancient Free & Accepted Masons of the Ct Grand Lodge 145 Friendship Tuscan

    EIN 260607927 · Headquarters: MANCHESTER, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Ancient Free Accepted Masons of Con

    EIN 066053415 · Headquarters: Cornwall, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Ancient Free and Accepted Masons of Connecticut

    EIN 853931608 · Headquarters: Wallingford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ancient Free and Accepted Masons of Ct

    EIN 237109817 · Headquarters: Glastonbury, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Ancient Mariners Connecticut Inc

    EIN 061074137 · Headquarters: New London, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Ancient Mystical Order of Rosae Crucis

    EIN 042588477 · Headquarters: East Hartford, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Ancient Order of Hibernians in America

    EIN 066101164 · Headquarters: Danbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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