Unknown & Unclassified nonprofits in Wisconsin

Unknown & Unclassified nonprofits in Wisconsin. Browse 13,737 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. Arrowhead Bible Camp Assn Inc

    EIN 237418962 · Headquarters: New Auburn, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Arrowhead Booster Club

    EIN 391607675 · Headquarters: Hartland, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  3. Arrowhead United Teachers Organization

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

  4. Arthur & Blanche Siegler Memorial Foundation

    EIN 391304266 · Headquarters: NECEDAH, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  5. Arthur C Kootz Foundation C/o William Clyde Surles

    EIN 237418817 · Headquarters: NASHOTAH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. Arthur J Donald Family Foundation Inc

    EIN 391480248 · Headquarters: ELM GROVE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Ascm Wisconsin Chapter Inc

    EIN 237028061 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Ashippun Fire Department Inc

    EIN 396076547 · Headquarters: ASHIPPUN, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  9. Ashland Area Chamber of Commerce

    EIN 390137565 · Headquarters: ASHLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Ashland Business Alliance

    EIN 331067314 · Headquarters: Ashland, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Ashland County Snowmobile Alliance Inc

    EIN 391482626 · Headquarters: CLAM LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Ashland Historical Society

    EIN 391363803 · Headquarters: ASHLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Ashland Youth Football Incorporated

    EIN 461735305 · Headquarters: Ashland, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  14. Ashland Youth Hockey Corporation

    EIN 930796999 · Headquarters: ASHLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Ashwaubenon Education Association

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

  16. Ashwaubenon High School Alumni Scholarship Fund

    EIN 237076826 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Ashwaubenon Nursery School Inc

    EIN 391133371 · Headquarters: Green Bay, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. Ashwaubenon Public Safety Officers

    EIN 391921588 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Asis International Inc

    EIN 411315404 · Headquarters: Balsam Lake, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Asis International Inc

    EIN 510227232 · Headquarters: Pewaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Asis International Inc

    EIN 510249076 · Headquarters: Deerfield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Asis International Inc

    EIN 521271127 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Aspirus at Home Inc

    EIN 390808511 · Headquarters: WAUSAU, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Aspirus Health Foundation Inc

    EIN 391256656 · Headquarters: WAUSAU, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Aspirus Riverview Foundation Inc

    EIN 391509239 · Headquarters: WISCONSIN RAPIDS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Aspirus Stevens Point Hospital Foundation Inc

    EIN 391657410 · Headquarters: STEVENS POINT, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  27. Aspirus Vna Extended Care Inc

    EIN 391597350 · Headquarters: WAUSAU, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Associated Banc-corp Group Health

    EIN 391375089 · Headquarters: GREEN BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Associated Builders & Contractors of Wisconsin Inc

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

  30. Associated General Contractors of Greater Milwaukee Inc

    EIN 390301660 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Associated General Contractors of Wisconsin Inc

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

  32. Associated Master Plumbers of Green Bay

    EIN 390138090 · Headquarters: Menasha, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Association for Computing Machinery

    EIN 222764320 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  34. Association for Facilities Engineering Inc

    EIN 431205486 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. 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

  36. Association for High Technology Distribution

    EIN 232390281 · Headquarters: WAUKESHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Association for Information and Image Management International

    EIN 391752156 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Association for Persons in Supported Employment

    EIN 391889238 · Headquarters: Thiensville, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Association for Professionals in Infection Ctrl & Epidemiology Inc

    EIN 042621685 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Association for Professionals in Infection Ctrl & Epidemiology Inc

    EIN 042701783 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Association for Rescue at Sea Inc

    EIN 132883907 · Headquarters: FISH CREEK, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Association for Rights of Citizens with Handicaps

    EIN 396030921 · Headquarters: WAUKESHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Association for the Developmentally Disabled of Manitowoc County Inc

    EIN 391646092 · Headquarters: manitowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Association for the Sociology of Religion Inc

    EIN 237075066 · Headquarters: JANESVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Association for Women Lawyers Inc

    EIN 391644922 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Association of Church Musicians Incorporated

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

  47. Association of Civilian Technicians Inc

    EIN 710931974 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. 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

  49. Association of Fundraising Professionals

    EIN 391619627 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Association of Fundraising Professionals

    EIN 391750585 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Association of Fundraising Professionals Southeastern Wisconsin Chapter

    EIN 391605755 · Headquarters: New Berlin, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Association of Government Accountants

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

  53. Association of Information Technology Professionals

    EIN 396075896 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Association of Mental Health Specialists

    EIN 391808556 · Headquarters: Janesville, WI, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990

  55. 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

  56. Association of Notre Dame Clubs Inc - Lacrosse/winona

    EIN 311075461 · Headquarters: VIROQUA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Association of Notre Dame Clubs Inc - Madison

    EIN 311075464 · Headquarters: Verona, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Association of Notre Dame Clubs Inc - Milwaukee

    EIN 311075462 · Headquarters: Cedarburg, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Association of Notre Dame Clubs Inc - Northeastern Wisconsin

    EIN 311148640 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Association of Operating Room Nurses Inc

    EIN 237423459 · Headquarters: Oconomowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  61. Association of Operating Room Nurses Inc

    EIN 391672065 · Headquarters: Manitowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Association of Operating Room Nurses Inc

    EIN 391695876 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Association of Operating Room Nurses Inc

    EIN 391708644 · Headquarters: McFarland, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Association of Professors of Cardio

    EIN 521707044 · Headquarters: WINDSOR, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Association of Retired Conservationists

    EIN 451563706 · Headquarters: Cross Plains, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Association of Sauk County Snowmobile Clubs Inc

    EIN 391376091 · Headquarters: Baraboo, WI, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  67. Association of State Prosecutors

    EIN 391679290 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Association of University Cardiologists

    EIN 581620699 · Headquarters: WINDSOR, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Association of Wa-tan-ye Clubs

    EIN 420779391 · Headquarters: Hazel Green, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Association of Wisconsin Artists Inc

    EIN 396287533 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Association of Wisconsin Lobbyists Inc

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

  72. Association of Wisconsin School Administrators Inc

    EIN 391142969 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Association of Wisconsin Snowmobile Clubs Inc

    EIN 391139945 · Headquarters: DE FOREST, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Association of Wisconsin Surgery Centers Inc

    EIN 391719166 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Association of Women in Agriculture Inc

    EIN 391468808 · Headquarters: WHITEWATER, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Association of Women in the Metal Industries Inc

    EIN 911886971 · Headquarters: Wauwatosa, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Assumption Foundation for K-12 Schools

    EIN 237311256 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Astor East River Neighborhood Association

    EIN 861079099 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Astor Street Foundation Inc

    EIN 391656190 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Astro Wings of Wisconsin

    EIN 391721999 · Headquarters: Grafton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Ata Chapter 5

    EIN 800330339 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. Athens Education Association

    EIN 237088275 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Athens Educational Support Paraprofessionals

    EIN 020733950 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Auburn Cemetary Association

    EIN 391233450 · Headquarters: CAMPBELLSPORT, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Auburndale Education Association

    EIN 237080941 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Auburndale Lions Club Inc

    EIN 396126160 · Headquarters: AUBURNDALE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Audrey & Loraines Extra Suitcase & Barrel Club Inc

    EIN 811848391 · Headquarters: West Bend, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. August Derleth Society Ltd

    EIN 391380141 · Headquarters: Sauk City, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Augusta Cemetery Association

    EIN 390740677 · Headquarters: Augusta, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Augusta Health and Rehabilitation

    EIN 391098365 · Headquarters: Augusta, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Augustus H Kennedy Mem Fund Tr

    EIN 411328800 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  92. Aurora Health Care

    EIN 611649250 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Aurora Snow Blazer Inc

    EIN 391255432 · Headquarters: Omro, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Aurora Venture Inc

    EIN 931549787 · Headquarters: HUDSON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Ausblick Inc

    EIN 391191929 · Headquarters: SUSSEX, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Autism Society of South Central Wisconsin Inc

    EIN 391785486 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Autism United Inc

    EIN 391708201 · Headquarters: WAUWATOSA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Automobile Dealers Association of Mega Milwaukee Inc

    EIN 390763326 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Automotive Parts & Service Association of Illinois

    EIN 370792328 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  100. Autotruck Dealers Association Employee Benefit Trust

    EIN 391548049 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

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