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. National Exchange Club

    EIN 066049871 · Headquarters: Shelton, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  2. National Exchange Club

    EIN 066049932 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. National Exchange Club

    EIN 066059482 · Headquarters: EASTON, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  4. National Exchange Club

    EIN 066069024 · Headquarters: Durham, CT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. National Exchange Club

    EIN 066069641 · Headquarters: Farmington, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  6. National Exchange Club

    EIN 066070235 · Headquarters: Brookfield, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. National Exchange Club

    EIN 066070236 · Headquarters: DANBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. National Exchange Club

    EIN 066074539 · Headquarters: Glastonbury, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. National Exchange Club

    EIN 066108606 · Headquarters: Danielson, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. National Exchange Club

    EIN 066108609 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. National Exchange Club

    EIN 066108612 · Headquarters: Old Saybrook, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  12. National Exchange Club

    EIN 066108618 · Headquarters: East Hartford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  13. National Exchange Club

    EIN 237384196 · Headquarters: Branford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  14. National Exchange Club

    EIN 271347333 · Headquarters: Meriden, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  15. National Exchange Club

    EIN 274298383 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. National Exchange Club

    EIN 460663567 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. National Exchange Club #1262 N Stamford

    EIN 066108610 · Headquarters: Stamford, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  18. National Exchange Club of Stratford Ct

    EIN 542108467 · Headquarters: Stratford, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  19. National Exchange Club Rockville Chapter

    EIN 066108607 · Headquarters: ELLINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  20. National Faith Leaders Collaborative Inc

    EIN 880525196 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. National Federation for Biblio-poetry Therapy

    EIN 205851311 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. National Federation of the Blind of Connecticut

    EIN 237320426 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. National Football Foundation and College Hall of Fame Inc

    EIN 061052646 · Headquarters: Ledyard, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. National Football Foundation and College Hall of Fame Inc

    EIN 066180755 · Headquarters: Manchester, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. National Football Foundation and College Hall of Fame Inc

    EIN 521964033 · Headquarters: TRUMBULL, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Guard Association of Connecticut Inc

    EIN 061053856 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. National Helicopter Museum Inc

    EIN 061001533 · Headquarters: Stratford, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. National High School Gymnastics Association

    EIN 205701338 · Headquarters: Milford, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. National Hispanic Hertiage Organiza Tion

    EIN 800246187 · Headquarters: New Haven, CT, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  30. National Housing Alliance

    EIN 061372046 · Headquarters: Waterbury, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. National Hunter & Jumper Association

    EIN 542136819 · Headquarters: riverside, CT, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  32. National Immigrant Heritage Center

    EIN 852900313 · Headquarters: FARMINGTON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. National Infantrymans Association

    EIN 471607400 · Headquarters: Newington, CT, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  34. National Institute for Medical Assistant Advancement Inc

    EIN 813293048 · Headquarters: MIDDLETOWN, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. National Islamic Committee on Girl Scouting Inc

    EIN 922863514 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Italian American Medical Society Incorporated

    EIN 061576859 · Headquarters: WETHERSFIELD, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  37. National Junior Athletic Associatio N Inc

    EIN 394633064 · Headquarters: Washington, CT, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Kidney Donation Organization

    EIN 822913692 · Headquarters: STRATFORD, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. National Kitchen & Bath Assoc

    EIN 061324643 · Headquarters: New Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. National Labor Alliance of Health Care Coalitions Inc

    EIN 141768443 · Headquarters: HARTFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. National League of American Pen Women Inc

    EIN 911825258 · Headquarters: Milford, CT, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  42. National League of Postmasters of the United States

    EIN 066068660 · Headquarters: Sterling, CT, US · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  43. National League of Young Men Inc

    EIN 882780073 · Headquarters: Greenwich, CT, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. National Life General Agents Associ C/o Jay Maffe

    EIN 036009590 · Headquarters: GLASTONBURY, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990

  45. National Living Organ Donors Foundation Inc

    EIN 450827128 · Headquarters: Glastonbury, CT, US · Health Care · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. National Mental Health Corps Inc

    EIN 010648561 · Headquarters: NEWTOWN, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  47. National Multiple Sclerosis Society Connecticut Chapter

    EIN 060792055 · Headquarters: HARTFORD, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  48. National Network of Episcopal Clergy Assoc

    EIN 850375946 · Headquarters: Westport, CT, US · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  49. National Newfoundland Rescue Inc

    EIN 873265122 · Headquarters: Gales Ferry, CT, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. National Nurse Practitioner Residency & Fellowship Training Consortium Inc

    EIN 475041001 · Headquarters: MIDDLETOWN, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. National Oilheat Research Alliance

    EIN 542024246 · Headquarters: NORWALK, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. National Old Timers Auto Racing Club

    EIN 222173409 · Headquarters: BETHEL, CT, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  53. National Org of Alpha Sigma Kappa Women in Technical Studies

    EIN 473000794 · Headquarters: West Haven, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. National Organization for Women Inc

    EIN 061289647 · Headquarters: Milford, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  55. National Organization for Women Inc

    EIN 222766553 · Headquarters: Simsbury, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  56. National Organization for Women Inc

    EIN 510242245 · Headquarters: Simsbury, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  57. National Organization of Black Law Enforcement Executives Noble

    EIN 273409694 · Headquarters: SUFFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Organization of Mothers of Twins Clubs

    EIN 061222485 · Headquarters: PROSPECT, CT, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  59. National Organization of Mothers of Twins Clubs Inc

    EIN 061573450 · Headquarters: Wilton, CT, US · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  60. National Organization of Mothers of Twins Clubs Inc

    EIN 208529014 · Headquarters: FARMINGTON, CT, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  61. National Organization of Mothers of Twins Clubs Inc

    EIN 261319352 · Headquarters: STAMFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Organization of Sisters of Color Ending Sexual Assault

    EIN 161634707 · Headquarters: Windsor, CT, USA · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990

  63. National Parent Leadership Institute

    EIN 821523529 · Headquarters: WILTON, CT, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  64. National Public Employees Union

    EIN 200328922 · Headquarters: DANBURY, CT, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. National Public Safety Drone Donation Program

    EIN 843088246 · Headquarters: Hebron, CT, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. National Puerto Rican Diaspora Muse Um Inc

    EIN 882080152 · Headquarters: Hartford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. National Research Fund for Tick-Borne Diseases Inc

    EIN 061565879 · Headquarters: Wilton, CT, USA · Medical Research · Latest available filing year: 2013 · Primary form: IRS Form 990

  68. National Retail Hobby Stores Association

    EIN 363806750 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. National Rural Letter Carriers Association

    EIN 237235406 · Headquarters: Bethel, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  70. National Rural Letter Carriers Association

    EIN 237235407 · Headquarters: SOUTHBURY, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  71. National Rural Letter Carriers Association

    EIN 237235408 · Headquarters: DEEP RIVER, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  72. National Rural Letter Carriers Association

    EIN 237235409 · Headquarters: GUILFORD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. National Rural Letter Carriers Association

    EIN 237235410 · Headquarters: LEDYARD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. National Rural Letter Carriers Association

    EIN 237235412 · Headquarters: South Windham, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  75. National Rural Letter Carriers Association

    EIN 510247381 · Headquarters: EAST HAMPTON, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  76. National Rural Letter Carriers Association

    EIN 581859164 · Headquarters: VERNON, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  77. National Rural Letter Carriers' Association

    EIN 237235405 · Headquarters: Guilford, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. National Salvage Vehicle Reporting Program

    EIN 263947803 · Headquarters: Stamford, CT, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. National School Public Relations Association

    EIN 541794519 · Headquarters: Waterbury, CT, US · Education · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  80. National Seasoning Manufacturers Association

    EIN 844445704 · Headquarters: Branford, CT, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. National Senior Conservation Corps Inc

    EIN 262128111 · Headquarters: HAMDEN, CT, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  82. National Shooting Sports Foundation (NSSF)

    EIN 060860132 · Headquarters: SHELTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Skal Committee of the United State of America Inc

    EIN 237155857 · Headquarters: SOUTH WINDSOR, CT, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  84. National Slovak Society of the USA

    EIN 061308408 · Headquarters: Seymour, CT, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  85. National Slovak Society of the USA

    EIN 061416715 · Headquarters: Monroe, CT, US · Human Services · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  86. National Slovak Society of the USA

    EIN 066071224 · Headquarters: Newtown, CT, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  87. National Slovak Society of the USA

    EIN 237501024 · Headquarters: Stratford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. National Slovak Society of the USA

    EIN 931227163 · Headquarters: Stratford, CT, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  89. National Society Children of the American Revolution

    EIN 900430835 · Headquarters: Simsbury, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. National Society Colonial Dames Xvii Century

    EIN 061039317 · Headquarters: BRISTOL, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Society Colonial Dames Xvii Century

    EIN 061309108 · Headquarters: Canaan, CT, US · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  92. National Society Colonial Dames Xvii Century

    EIN 237159780 · Headquarters: Bristol, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. National Society Colonial Dames Xvii Century

    EIN 237407954 · Headquarters: Bristol, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Society Colonial Dames Xvii Century

    EIN 463272895 · Headquarters: East Lyme, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Society Colonial Dames Xvii Century

    EIN 472434643 · Headquarters: Plantsville, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Society Colonial Dames Xvii Century

    EIN 611734994 · Headquarters: New Fairfield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. National Society Colonial Daughters of the 17Th Century

    EIN 881572224 · Headquarters: Uncasville, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. National Society Daughters of Colonial Wars Inc

    EIN 066041292 · Headquarters: North Grosvenordale, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. National Society Daughters of Founders & Patriots of America

    EIN 237584649 · Headquarters: Stratford, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Society Daughters of the British Empire in the United State

    EIN 900911343 · Headquarters: NEW CANAAN, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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