Nonprofits in Madison, Connecticut

Nonprofits in Madison, Connecticut. Browse 162 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. ACT II Thrift Shop Inc

    EIN 262535551 · Headquarters: Madison, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Adler Animal Welfare Incorporated C/o Jane Adler

    EIN 454006282 · Headquarters: MADISON, CT, USA · Animal Related · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  3. Aes-ct

    EIN 843371541 · Headquarters: MADISON, CT, USA · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  4. American Federation of State County & Municipal Employees

    EIN 222501531 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. American Legion

    EIN 066051082 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. American Legion Auxiliary

    EIN 301201252 · Headquarters: MADISON, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. 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

  8. Apk Charities Corporation

    EIN 465456912 · Headquarters: MADISON, CT, USA · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Arthur & Myra Mahon Charitable Foundation Trarym

    EIN 061527656 · Headquarters: MADISON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  10. Association of Independent School Admission Professionals

    EIN 571218279 · Headquarters: Madison, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Association of Madison Administrators

    EIN 010824692 · Headquarters: Madison, CT, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Babywearing Connecticut Inc

    EIN 831715162 · Headquarters: Madison, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Big Fun Education

    EIN 273907385 · Headquarters: MADISON, CT, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  14. Brown Elementary School Parent Teacher Organization

    EIN 421659782 · Headquarters: MADISON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Call to Care Uganda Inc

    EIN 320217823 · Headquarters: Madison, CT, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Carpatho-Rusyn Legacy Fund Inc

    EIN 922262115 · Headquarters: Madison, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Charlotte L Evarts Memorial Archives Inc

    EIN 061419113 · Headquarters: Madison, CT, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Childhood Cancer Kids

    EIN 464366903 · Headquarters: Madison, CT, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  19. Coalition Against Casino Expansion in Connecticut

    EIN 821072305 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  20. Connecticut Chapter of the American Association of Nurse Attorneys Inc

    EIN 061336721 · Headquarters: MADISON, CT, US · Crime & Legal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  21. Connecticut Chapter of the National Academy of Elder Law Attorneys Inc

    EIN 204725789 · Headquarters: Madison, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Connecticut Education Association

    EIN 237107174 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Connecticut Education Association

    EIN 237107209 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Connecticut Girls Hockey League

    EIN 208110238 · Headquarters: MADISON, CT, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Connecticut Society of Enrolled Agents Inc

    EIN 222505223 · Headquarters: MADISON, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Connecticut Theater Women Network Inc

    EIN 334817376 · Headquarters: Madison, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Daniel Hand High School Pto

    EIN 273615725 · Headquarters: Madison, CT, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  28. Deacon John Grave Foundation Inc

    EIN 061084133 · Headquarters: MADISON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Dhhs Boys Lacrosse Boosters

    EIN 993665558 · Headquarters: Madison, CT, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Divorce Solutions of Connecticut

    EIN 760846950 · Headquarters: Madison, CT, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  31. Ec Scranton Memorial Library

    EIN 060726490 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Ensemble Cherubim Inc

    EIN 994131449 · Headquarters: MADISON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Exchange Club of Madison

    EIN 066071059 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Expedition Earth Productions Inc

    EIN 271812865 · Headquarters: Madison, CT, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  35. Fairfield League of Yankee Radio Controllers Inc

    EIN 061196516 · Headquarters: Madison, CT, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. FlyRC LLC

    EIN 061637585 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  37. Fostering Family Hope Inc

    EIN 861764616 · Headquarters: Madison, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Friends of Hammonasset Inc

    EIN 061546997 · Headquarters: MADISON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Garden Club of Madison

    EIN 066047068 · Headquarters: MADISON, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Geh Foundation Emily B Haines Trustee

    EIN 392939088 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. General Federation of Womens Clubs

    EIN 237025498 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Grassroots Fund for the Environment Inc

    EIN 202986668 · Headquarters: Madison, CT, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  43. Hammonassett Fishing Association

    EIN 060380120 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Hand Girls Hockey Booster Club

    EIN 814465534 · Headquarters: Madison, CT, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Help for Happiness Inc

    EIN 881758306 · Headquarters: Madison, CT, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. Helping Hands of Madison Inc

    EIN 844835989 · Headquarters: Madison, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Hope Partnership Inc

    EIN 201683627 · Headquarters: MADISON, CT, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Htc Youth Inc

    EIN 823185259 · Headquarters: MADISON, CT, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  49. Infinite Strength Inc

    EIN 824118676 · Headquarters: MADISON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990

  50. Inner Room Inc

    EIN 452739028 · Headquarters: Madison, CT, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  51. Institute for Life Sciences Collaboration Inc

    EIN 455595804 · Headquarters: MADISON, CT, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Island Avenue School PTO

    EIN 061368109 · Headquarters: Madison, CT, US · Education · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. Jacob's Team Foundation

    EIN 261530929 · Headquarters: MADISON, CT, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  54. Jeg Ministries

    EIN 824116552 · Headquarters: MADISON, CT, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Journey Home Recovery Living Llc

    EIN 823617750 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  56. Kids Helping Kids with a Smile Inc

    EIN 472297568 · Headquarters: MADISON, CT, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Kids Scholarship Fund Inc

    EIN 061494714 · Headquarters: MADISON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Knights of Columbus

    EIN 273564866 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Knights of Columbus

    EIN 810805474 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Leon Lowenstein Foundation Inc

    EIN 136015951 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. Little Blessings Christian Childcare Center Inc

    EIN 851913709 · Headquarters: MADISON, CT, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Lynch Syndrome International

    EIN 270571530 · Headquarters: MADISON, CT, US · Medical Research · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  63. Madison Abc Program Incorporated

    EIN 237040306 · Headquarters: MADISON, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Madison Ambulance Association Inc Dba Madison Emergency Medical Services

    EIN 061172811 · Headquarters: MADISON, CT, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Madison Art Society

    EIN 911829571 · Headquarters: Madison, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Madison Arts Barn

    EIN 061474604 · Headquarters: Madison, CT, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Madison Athletic Hall of Fame Inc

    EIN 463752621 · Headquarters: madison, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Madison Baseball Inc

    EIN 901029735 · Headquarters: MADISON, CT, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990

  69. Madison Beach Preservation Association

    EIN 371762753 · Headquarters: Madison, CT, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  70. Madison Cable Access Group Inc

    EIN 061454146 · Headquarters: Madison, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Madison Chamber of Commerce

    EIN 222536920 · Headquarters: MADISON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Madison Community Services

    EIN 237105685 · Headquarters: MADISON, CT, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Madison Country Club Inc

    EIN 060436540 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Madison Cultural Arts Inc

    EIN 061427551 · Headquarters: MADISON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Madison Fireworks Organization Inc

    EIN 050550053 · Headquarters: MADISON, CT, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Madison Historical Society Inc

    EIN 066038865 · Headquarters: MADISON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Madison Hoop Dreams Inc

    EIN 208871626 · Headquarters: MADISON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Madison Hose Co 1 Inc P O Box 573

    EIN 066070026 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Madison Jaycees Foundation Inc

    EIN 461693707 · Headquarters: MADISON, CT, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Madison Jaycees Inc

    EIN 237406065 · Headquarters: MADISON, CT, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Madison Land Conservation Trust

    EIN 066070866 · Headquarters: MADISON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Madison Little League Inc

    EIN 237002463 · Headquarters: MADISON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Madison Lyric Stage

    EIN 811313312 · Headquarters: MADISON, CT, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. Madison Masonic Temple Corporation

    EIN 060958778 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Madison Pride Fest

    EIN 871155566 · Headquarters: Madison, CT, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Madison Rotary Club

    EIN 061498469 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Madison Rotary Foundation Inc

    EIN 066075666 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Madison Soccer Booster Club

    EIN 061135265 · Headquarters: Madison, CT, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Madison Winter Club Inc

    EIN 066069006 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  90. Madison Youth Basketball Association

    EIN 061426933 · Headquarters: MADISON, CT, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Madison Youth Football Inc a Sub/american Youth Football Inc

    EIN 061538688 · Headquarters: MADISON, CT, USA · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  92. Madison Youth Soccer Club

    EIN 061067445 · Headquarters: MADISON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Madisons Nite in Hand Inc

    EIN 455285220 · Headquarters: Madison, CT, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Mercy Center Incorporated

    EIN 061307050 · Headquarters: MADISON, CT, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Museum of Culture and Arts Inc

    EIN 841858356 · Headquarters: Madison, CT, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. National Association of Government Employees

    EIN 352370330 · Headquarters: Madison, CT, US · Employment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  97. National Association of Government Employees Nage 222

    EIN 061305909 · Headquarters: Madison, CT, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  98. National Exchange Club

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

  99. National Exchange Club

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

  100. Neck River Elementary Parent Teachers Organization

    EIN 061580579 · Headquarters: MADISON, CT, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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