Nonprofits in Madison, Wisconsin

Nonprofits in Madison, Wisconsin. Browse 4,170 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. American Federation State County & Municipal Employees Local 171

    EIN 390758401 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Fisheries Society

    EIN 237226684 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Immigration Lawyers Association

    EIN 391508164 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. American Inns of Court Foundation

    EIN 263605957 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. American Institute of Aeronautics and Astronautics

    EIN 391724072 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. American Institute of Industrial Engineers Inc

    EIN 510153744 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Institute of Pakistan Studies

    EIN 710762618 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  8. American Institute of the History of Pharmacy

    EIN 390128183 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. American Legion Auxiliary

    EIN 237028125 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Legion Auxiliary

    EIN 273526986 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Legion Auxiliary

    EIN 396055426 · Headquarters: Madison, WI, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  12. American Legion Auxiliary

    EIN 396075432 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Legion Post 501 (Group 925)

    EIN 237084573 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. American Legion Post 57 Wm B Crains Victory

    EIN 396074619 · Headquarters: Madison, WI, US · Public & Societal Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  15. American Marketing Association Inc

    EIN 237100166 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Nephrology Nurses Association

    EIN 320313116 · Headquarters: Madison, WI, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. American Orthoptic Council Inc

    EIN 421206155 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. American Pharmacists Association Academy of Student Pharmacists

    EIN 391968104 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Postal Workers Union 0241 Madison Wi Area Local

    EIN 237339903 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. American Postal Workers Union Auxiliary

    EIN 352355102 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  21. American Postal Workers Union Auxiliary

    EIN 825348514 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Poultry Historical Society

    EIN 366127520 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  23. American Society of Agronomy

    EIN 390808552 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. American Statistical Association

    EIN 510160719 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Warrior Initiative Inc

    EIN 473566126 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Americans for Good Government

    EIN 414779535 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Americans United for Separation of Church and State

    EIN 391850436 · Headquarters: Madison, WI, US · Religion Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Amigos De Las Americas-Wisconsin Chapter Inc

    EIN 274241943 · Headquarters: MADISON, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  29. Amnesty International USA Inc

    EIN 814709781 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Amvets

    EIN 061691958 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Amvets

    EIN 831135767 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  32. Anana Elementary Pto

    EIN 825231478 · Headquarters: MADISON, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Ananda Marga of Madison Inc

    EIN 237165910 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Ancient Accepted Scottish Rite of Freemasonry NMJ

    EIN 390129689 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Ancient and Accepted Scottish Rite of Free Masonry Prince Hall Affili

    EIN 237567338 · Headquarters: MADISON, WI, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  36. Ancient Arabic Order of the Nobles of the Mystic Shrine of Na

    EIN 237325155 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  37. Ancient Earthworks Society of Wisconsin Inc

    EIN 465323776 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Ancient Mystical Order of Rosae Crucis

    EIN 270891845 · Headquarters: Madison, WI, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  39. Andean Health and Development Inc

    EIN 391809174 · Headquarters: MADISON, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Andrew & Michael Stolper Foundation Inc

    EIN 391916231 · Headquarters: Madison, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  41. Andy and Susan North Family Foundation Inc

    EIN 814289284 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  42. Anesis Foundation for Mental Health Inc

    EIN 932296543 · Headquarters: MADISON, WI, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Angela Ackley Ministries Inc

    EIN 844267944 · Headquarters: Madison, WI, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Animal Crackers Inc

    EIN 391639970 · Headquarters: Madison, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Anonymous Foundation Inc C/o David W Reinecke

    EIN 850966039 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  46. Antigo Education Association

    EIN 391140997 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Antigo Educational Support Personnel Association

    EIN 800150354 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Antigo Professional Support Association

    EIN 391971406 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Antiracism Learning and Action in Neuroscience

    EIN 883826235 · Headquarters: Madison, WI, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Antitrust Law Association

    EIN 331428901 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Aoac International

    EIN 541627933 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Apartment Association of South

    EIN 391207755 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Appleseed Inc

    EIN 474446426 · Headquarters: MADISON, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Appleton Paraprofessional Association

    EIN 391474063 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Appleton Secretarial-clerical Association

    EIN 300442635 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Appleton-oshkosh Electrical Workers Joint Apprenticeship Training Committee

    EIN 930815385 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Aquaterra Biomes

    EIN 921649447 · Headquarters: Madison, WI, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Ar Flags

    EIN 352478798 · Headquarters: Madison, WI, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Arbor Good Neighbor House Inc

    EIN 994219437 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Arbor Hills Neighborhood Association Inc

    EIN 510135852 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Arbor Vitae-woodroof Education Association

    EIN 392007353 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Arboretum Neighborhood Association

    EIN 208760753 · Headquarters: Madison, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Arc Community Services Inc

    EIN 510163796 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Arcadia Education Association

    EIN 237093765 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Arcadia Educational Support Professionals

    EIN 262814323 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Argyle Education Association

    EIN 391461364 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Armstrong Child Advocacy and Study Center Inc

    EIN 391247151 · Headquarters: MADISON, WI, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  68. Arnold Air Society-silver Wings

    EIN 396077857 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Arrowhead United Teachers Organization

    EIN 391556871 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Arthur and Joan (Dolohanty) Dietrich Foundation

    EIN 260047433 · Headquarters: Madison, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  71. Arts + Literature Laboratory

    EIN 811197708 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Arts for All Wisconsin Inc

    EIN 391526913 · Headquarters: Madison, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Artwrite Collective Inc

    EIN 473950249 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  74. As One Inc

    EIN 200624051 · Headquarters: Madison, WI, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Asc1 Inc Veba Health Investment Plan

    EIN 352448275 · Headquarters: Madison, WI, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Ascendium Education Group

    EIN 391090394 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Ascendium Education Group

    EIN 391853833 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Ashwaubenon Education Association

    EIN 237086248 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Asset Builders of America Inc

    EIN 392005260 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Assisi Homes - Howard Woods Inc

    EIN 391776611 · Headquarters: MADISON, WI, USA · Housing & Shelter · Latest available filing year: 2014 · Primary form: IRS Form 990

  81. Assoc Builders & Contractor of Wi Inc Apprenticeship & Training Trust Fund

    EIN 391633896 · Headquarters: MADISON, WI, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Associated Builders & Contractors of Wisconsin Inc

    EIN 391158527 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Associated County Extension

    EIN 391519823 · Headquarters: MADISON, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  84. Associated General Contractors of Wisconsin Inc

    EIN 390712400 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Association for Gerontology Education in Social Work Inc

    EIN 272249954 · Headquarters: Madison, WI, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Association for Great Lakes Maritime History Inc

    EIN 391484960 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Association for Women in Communications Madison Inc

    EIN 331260664 · Headquarters: Madison, WI, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Association of Career Employees Inc

    EIN 612119349 · Headquarters: MADISON, WI, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Association of Church Musicians Incorporated

    EIN 391570927 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Association of Civilian Technicians Inc

    EIN 710931976 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Association of Egyptian American Scholars Inc

    EIN 237216365 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. Association of Family and Conciliation Courts

    EIN 952597407 · Headquarters: MADISON, WI, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Association of Government Accountants

    EIN 391300514 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Association of Latino Professionals for America at Uw-madison

    EIN 933119213 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Association of Madison Police Supervisors Inc

    EIN 510162077 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Association of Milwaukee Public Schools Retirees

    EIN 043787468 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Association of Natural Resources Enforcement Trainers Inc

    EIN 391790896 · Headquarters: Madison, WI, US · Crime & Legal Related · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  98. Association of Nepali American CPA

    EIN 464687403 · Headquarters: Madison, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Association of State Floodplain Managers Foundation Inc

    EIN 912110091 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Association of Wisconsin Lobbyists Inc

    EIN 391356328 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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