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. Int'l Assoc of Iron Workers Local 383 Union

    EIN 390670326 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Integrated Community Work Inc

    EIN 391633242 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Interfaith Peace Working Group

    EIN 922752434 · Headquarters: MADISON, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Interfraternity Council of the University of Wisconsin-madison

    EIN 391708225 · Headquarters: MADISON, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Intermission Theatre

    EIN 460990922 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  6. International Academy of Wood Science

    EIN 680387256 · Headquarters: Madison, WI, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. International Adam Smith Society

    EIN 263370379 · Headquarters: Madison, WI, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. International Alliance Theatrical

    EIN 391027585 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. International Association of Administrative Professional

    EIN 412045428 · Headquarters: Madison, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. International Association of Administrative Professionals

    EIN 396064410 · Headquarters: Madison, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  11. International Association of Fire Fighters A0047

    EIN 391744492 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. International Association of Lions Clubs

    EIN 820561043 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  13. International Association of Machinists & Aerospace Workers

    EIN 396076467 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. International Association of Meteorology and Atmospheric Sciences

    EIN 874151202 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. International Association of Visually Impaired Technologists

    EIN 270750481 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  16. International Association of Woodanatomists

    EIN 205521081 · Headquarters: MADISON, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. International Assocition of Sheet Metal Air Rail & Transportation

    EIN 396006656 · Headquarters: MADISON, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. International Bible Mission Inc

    EIN 237447907 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. International Breast Cancer Research Foundation Inc

    EIN 391766858 · Headquarters: Madison, WI, USA · Medical Research · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  20. International Brotherhood of Electrical Workers Local Union 965

    EIN 390141345 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. International Brotherhood of Teamsters

    EIN 391508140 · Headquarters: MADISON, WI, US · Employment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. International Brotherhood of Teamsters Local Union No 695

    EIN 390859252 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. International Cell Research Organization Ltd

    EIN 456205861 · Headquarters: MADISON, WI, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. International Center for Community Land Trusts Inc

    EIN 843858933 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. International Committee for the Peace Council Inc

    EIN 391797720 · Headquarters: Madison, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  26. International Council on Magnetic Resonance in Biological Systems

    EIN 391725129 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. International Credit Union Regulators Network Inc

    EIN 812598274 · Headquarters: Madison, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. International Dairy-deli-bakery Association

    EIN 391097841 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. International Energy Program Evaluation Conference

    EIN 264392451 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. International Fellowship Inc

    EIN 994126255 · Headquarters: Madison, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. International Fellowship of Evangelical Students

    EIN 263538114 · Headquarters: MADISON, WI, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. International Field Directors and Techologies Conference Incorporated

    EIN 541747813 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. International Forgiveness Institute Inc

    EIN 391832533 · Headquarters: Madison, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. International Foundation For Integrated Medicine Ltd C/o James E Guither

    EIN 391982934 · Headquarters: Madison, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  35. International Friendship Center Inc

    EIN 871429012 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. International Institute of Business Analysis Greater Madison Chapter

    EIN 870783071 · Headquarters: Madison, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  37. International Mountain Bicycling Assoc-capital Off Road Pathfinders

    EIN 271680223 · Headquarters: MADISON, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. International Partners for Education Inc

    EIN 204900919 · Headquarters: Madison, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. International Society of Certified Employee Benefit Specialists Inc

    EIN 391781060 · Headquarters: Madison, WI, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  40. International Society of Plant Molecular Biology Inc

    EIN 521199045 · Headquarters: Madison, WI, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  41. International Transplant Nurses Society

    EIN 392072514 · Headquarters: Madison, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. International Union INTERNATIONAL BROTHERHOOD OF ELECTRICAL WORKERS LOCAL 2

    EIN 396063261 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. International Union of Bricklayers and Allied Craftworkers

    EIN 390181984 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. International Union of Elevator Constructors

    EIN 396078696 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. International Union of Soil Sciences Inc

    EIN 461007367 · Headquarters: Madison, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. International Union United Auto Aerospace & Agri Workers of Amer

    EIN 390918572 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  47. International Womens Insolvency & Restructuring Confederation Inc

    EIN 823359789 · Headquarters: madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Interstate Power & Light Employees Bargaining & Welfare Trust

    EIN 421418526 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. InterVarsity Christian Fellowship/USA

    EIN 362171714 · Headquarters: Madison, WI, USA · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990-T

  50. Intra-city Parishes of Manitowoc Inc

    EIN 391302052 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Intrepid Charitable Partners

    EIN 810866277 · Headquarters: Madison, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  52. Invasive Plants Association of Wisconsin Incorporated

    EIN 392020468 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Iola Scandinavia Education Association

    EIN 237086941 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Iola-scandinavia Auxiliary Association

    EIN 800152137 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Iota Court Preservation Association Inc

    EIN 363548648 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Iowa Co Farm Bureau Co-operative

    EIN 390824313 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Iowa Grant Education Association & Education Support Professionals

    EIN 391503558 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Ip Ministries Inc

    EIN 834454551 · Headquarters: Madison, WI, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Ipm Institute of North America Inc

    EIN 391938654 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Ipm Voice Inc

    EIN 450955794 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Iron Workers Local 383 Health Care Plan

    EIN 391365594 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Iron Workers Local No 383 Training Program Trust

    EIN 237218726 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Ironworkers Labor Management Cooperation Tr

    EIN 421625493 · Headquarters: Madison, WI, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Irving & Dorothy Levy Family Foundation

    EIN 396045321 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. Irving Halper Trust

    EIN 366430254 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. Irwin a and Robert D Goodman Community Center Inc

    EIN 391919172 · Headquarters: MADISON, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Irwin a and Robert D Goodman Foundation Inc

    EIN 396056619 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. Islamic Community of Madison Area Inc

    EIN 391961661 · Headquarters: Madison, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Isle Royale Families & Friends Association

    EIN 542129393 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Issue Uw

    EIN 352845392 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Isthmus Community Media Inc

    EIN 852868484 · Headquarters: MADISON, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Isthmus Dance Collective Incorporated

    EIN 851474898 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Isthmus Montessori Academy Inc

    EIN 454480175 · Headquarters: Madison, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Isthmus Project Inc

    EIN 832278676 · Headquarters: Madison, WI, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Isthmus Vocal Ensemble Inc

    EIN 201701991 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. It's Possible Foundation Inc

    EIN 475255658 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  77. Italian Womens Association

    EIN 396065744 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  78. Ithaca Education Association

    EIN 237091388 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Ithaca Educational Support Staff

    EIN 510663754 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Ithemba Ngemfundo Inc

    EIN 871291961 · Headquarters: Madison, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. J a M Fund Inc

    EIN 462368775 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Jack and Peggy Sturm Foundation Inc

    EIN 813701037 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  83. Jack Deloss Taylor Charitable Trust

    EIN 396510710 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Jackson County Farm Bureau Cooperative

    EIN 396084265 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Jackson Elfah & Spaz

    EIN 841901351 · Headquarters: Madison, WI, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  86. Jadel Inc

    EIN 861594369 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  87. Jake Foundation Inc

    EIN 471095935 · Headquarters: Madison, WI, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  88. James F Swart Foundation Xxx-xx-xxxx

    EIN 206217365 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  89. Jane Speaks Inc

    EIN 821141382 · Headquarters: Madison, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Janesville Education Association

    EIN 394154946 · Headquarters: MADISON, WI, US · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Janesville-beloit Electrical Construction Industry Trust

    EIN 391096844 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Jason Grosse Memorial Foundation Ltd

    EIN 841907810 · Headquarters: MADISON, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Jazz at Five Inc

    EIN 205053865 · Headquarters: MADISON, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Jeanette Guinn Foundation Corporation

    EIN 992791537 · Headquarters: Madison, WI, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Jefferson County Apartments Inc

    EIN 391992757 · Headquarters: MADISON, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Jefferson County Farm Bureau Cooperative

    EIN 390812947 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Jefferson Education Association of Joint District No 10

    EIN 237078923 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Jefferson Pto Madison

    EIN 884270149 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Jessie Crawford Recovery Center Inc

    EIN 900814354 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2022 · Primary form: IRS Form 990

  100. Jewish Burial Association of Madison

    EIN 270444383 · Headquarters: Madison, WI, United States · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990

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