Nonprofits in Wisconsin

Nonprofits in Wisconsin. Browse 46,682 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. International Association of Machinists & Aerospace Workers

    EIN 396086273 · Headquarters: MUSKEGO, WI, US · Employment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  2. International Association of Machinists & Aerospace Workers

    EIN 396096708 · Headquarters: WISCONSIN RAPIDS, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. International Association of Machinists & Aerospace Workers

    EIN 396106315 · Headquarters: Reedsburg, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. International Association of Machinists & Aerospace Workers

    EIN 510160703 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. International Association of Machinists Aerospace Workers

    EIN 390934317 · Headquarters: Watertown, WI, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  6. International Association of Machinists Aerospace Workers

    EIN 390962922 · Headquarters: VALDERS, WI, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  7. International Association of Machinists Aerospace Workers

    EIN 390966747 · Headquarters: WEST BEND, WI, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  8. International Association of Machinists Aerospace Workers

    EIN 396076044 · Headquarters: Milwaukee, WI, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  9. 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

  10. International Association of Music Libraries Archives &Documentation

    EIN 821461778 · Headquarters: MIDDLETON, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. International Association of Pancreatology

    EIN 460577880 · Headquarters: MILWAUKEE, WI, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. International Association of Sheet Metal Air Rail & Transportation

    EIN 391913788 · Headquarters: AMHERST JUNCTION, WI, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. International Association of Sheet Metal Air Rail & Transportation

    EIN 391925977 · Headquarters: Oshkosh, WI, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. International Association of Sheet Metal Air Rail & Transportation

    EIN 396006654 · Headquarters: Plymouth, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. International Association of Sheet Metal Air Rail & Transportation

    EIN 396008166 · Headquarters: FRIENDSHIP, WI, US · Employment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. International Association of Sheet Metal Air Rail & Transportation

    EIN 396008173 · Headquarters: Milwaukee, WI, US · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  17. International Association of Sheet Metal Air Rail & Transportation

    EIN 396081070 · Headquarters: GORDON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. International Association of Sheet Metal Air Rail & Transportation

    EIN 396090847 · Headquarters: HOLMEN, WI, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. International Association of Sheet Metal Air Rail & Transportation

    EIN 416037321 · Headquarters: SUPERIOR, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. International Association of Sheet Metal Air Rail and Transportation 0583Td

    EIN 391918543 · Headquarters: FOND DU LAC, WI, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. International Association of Structural Movers Inc

    EIN 581559400 · Headquarters: NEENAH, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. 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

  23. International Association of Woodanatomists

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

  24. 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

  25. International Assoviation of Lions Clubs

    EIN 863908114 · Headquarters: Wisconsin Rapids, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. International Bible Ministries Inc

    EIN 760735202 · Headquarters: Middleton, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. International Bible Mission Inc

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

  28. International Bonhoeffer Society

    EIN 222512569 · Headquarters: Oneida, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. 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

  30. International Brotherhd - Boilrmkrs Ir Shp Bldrs Blcksmth Frgrs & Hlpr

    EIN 390965841 · Headquarters: Hales Corner, WI, US · Employment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  31. International Brotherhd - Boilrmkrs Ir Shp Bldrs Blcksmth Frgrs & Hlpr

    EIN 396078211 · Headquarters: DePere, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. International Brotherhood of Boiler

    EIN 391025489 · Headquarters: CUDAHY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. International Brotherhood of Boiler Makers Iron Ship Builders Blacksm

    EIN 390517882 · Headquarters: BROOKFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. International Brotherhood of Boilermakers Local487

    EIN 300960631 · Headquarters: two rivers, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. International Brotherhood of Electrical Workers

    EIN 390968909 · Headquarters: MUKWONAGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. International Brotherhood of Electrical Workers

    EIN 396057257 · Headquarters: Milwaukee, WI, US · Employment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  37. International Brotherhood of Electrical Workers - 0014 Local

    EIN 391761679 · Headquarters: FALL CREEK, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. International Brotherhood of Electrical Workers Local 388

    EIN 391210824 · Headquarters: STEVENS POINT, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. International Brotherhood of Electrical Workers Local 430

    EIN 390855434 · Headquarters: RACINE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. International Brotherhood of Electrical Workers Local 577

    EIN 390918437 · Headquarters: APPLETON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. International Brotherhood of Electrical Workers Local Union 127

    EIN 390944715 · Headquarters: KENOSHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. 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

  43. International Brotherhood of Teamsters

    EIN 391477631 · Headquarters: MT PLEASANT, WI, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  44. International Brotherhood of Teamsters

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

  45. International Brotherhood of Teamsters

    EIN 391634156 · Headquarters: EAU CLAIRE, WI, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  46. International Brotherhood of Teamsters

    EIN 391730782 · Headquarters: MILWAUKEE, WI, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  47. International Brotherhood of Teamsters Joint Council 39

    EIN 390140155 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. International Brotherhood of Teamsters Local Union No 200

    EIN 390301593 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. 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

  50. International Brotherhood-local 696

    EIN 391148721 · Headquarters: MARINETTE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. International Campaign Against Blindness

    EIN 453749720 · Headquarters: Appleton, WI, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  52. International Catholic Deaf Assn

    EIN 396127538 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. International Cell Research Organization Ltd

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

  54. 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

  55. International Cesarean Awareness Network

    EIN 272795555 · Headquarters: Shell Lake, WI, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  56. International Cesarean Awareness Network

    EIN 273226910 · Headquarters: Fitchburg, WI, US · Health Care · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  57. International Cesarean Awareness Network

    EIN 510583992 · Headquarters: La Crosse, WI, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  58. International Chapter - Young Presidents Organization Inc

    EIN 133539309 · Headquarters: Hartland, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. International Children's Fund

    EIN 391303430 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. International Christian Community Development Foundation Inc

    EIN 811545393 · Headquarters: WAUSAU, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  61. International Clown Hall of Fame and Research Center Inc

    EIN 391571904 · Headquarters: BARABOO, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. International Coach Federation Icf Wisconsin Charter Chapter Inc

    EIN 392031709 · Headquarters: Poynette, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. 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

  64. International Committee on Nigeria

    EIN 822478738 · Headquarters: MILWAUKEE, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. International Computing Institute for Quran and Islamic Sciences

    EIN 881219520 · Headquarters: Milwaukee, WI, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  66. International Conference on Learning Representations

    EIN 830663329 · Headquarters: APPLETON, WI, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. International Coregonid Symposium 2017 Limited

    EIN 383972440 · Headquarters: Washburn, WI, US · Science & Technology · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. International Council for Media Literacy

    EIN 391079981 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. 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

  70. International Crane Foundation Inc

    EIN 391187711 · Headquarters: BARABOO, WI, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. 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

  72. International Dairy-deli-bakery Association

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

  73. International Development Foundation

    EIN 680673008 · Headquarters: Ashland, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  74. International Dn Ice Yacht Racing Association

    EIN 271651046 · Headquarters: Monona, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. International Dyslexia Association

    EIN 391503088 · Headquarters: Oconomowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. International Education Services Ltd

    EIN 391739908 · Headquarters: WAUKESHA, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. International Energy Program Evaluation Conference

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

  78. International Eosinophil Society Inc

    EIN 272696878 · Headquarters: MILWAUKEE, WI, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. International Federation of Clinical Neurophysiology Inc

    EIN 852547058 · Headquarters: MILWAUKEE, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. International Federation of Professional & Technical Engineers

    EIN 396086794 · Headquarters: CUDAHY, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. International Federation of Professional & Technical Engineers

    EIN 911781377 · Headquarters: West Allis, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  82. International Fellowship Inc

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

  83. International Fellowship of Evangelical Students

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

  84. 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

  85. International Fire Suppression Alliance Ltd

    EIN 522154784 · Headquarters: GREEN BAY, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. 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

  87. 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

  88. International Foundation of Employee Benefit Plans

    EIN 391034021 · Headquarters: BROOKFIELD, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. International Free and Accepted Modern Masons Inc and Order of Eastern Stars

    EIN 237532384 · Headquarters: Milwaukee, WI, USA · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  90. International Friendship Center Inc

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

  91. International Friendships of Hudson Inc

    EIN 814625552 · Headquarters: Hudson, WI, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  92. International Geographical Union

    EIN 522284236 · Headquarters: Sheboygan, WI, US · Science & Technology · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  93. International Harvester Collectors Wisconsin Chapter 4 Inc

    EIN 391953339 · Headquarters: Manitowoc, WI, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. International Heritage Walking Horse Association Inc

    EIN 473173995 · Headquarters: Whitehall, WI, US · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. International Institute for Global Leadership Inc

    EIN 562443621 · Headquarters: MEQUON, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. International Institute of Building Enclosure Consultants Inc

    EIN 453247073 · Headquarters: Oregon, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. 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

  98. International Institute of Business Analysis Se Wisconsin Chapter

    EIN 020790282 · Headquarters: Wauwatosa, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. International Institute of Systems Medicine Inc

    EIN 270096947 · Headquarters: Milwaukee, WI, US · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. International Institute of Wisconsin Inc

    EIN 390806350 · Headquarters: MILWAUKEE, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

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