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. International Union of Elevator Constructors

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

  2. International Union of Painters and Allied Trades

    EIN 383292682 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. International Union of Painters and Allied Trades

    EIN 390184594 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. International Union of Painters and Allied Trades

    EIN 390367744 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. International Union of Painters and Allied Trades

    EIN 390615135 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. International Union of Painters and Allied Trades

    EIN 390809616 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. International Union of Painters and Allied Trades

    EIN 390989839 · Headquarters: BIG BEND, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. International Union of Painters and Allied Trades Local Union 1204

    EIN 390666607 · Headquarters: KENOSHA, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. International Union UAW

    EIN 396007586 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. International Union UAW 578

    EIN 390975236 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. International Union UAW Local 1102

    EIN 390990612 · Headquarters: Green Bay, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. International Union UAW Local 1472

    EIN 391086745 · Headquarters: CLEVELAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. International Union UAW Local 72

    EIN 390669900 · Headquarters: Kenosha, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. International Union UAW Local 722

    EIN 416033743 · Headquarters: Hudson, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. International Union United Auto Aerospace & Ag Wrkrs of Amer

    EIN 391359712 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. International Union United Auto Aerospace & Agricultural Workers

    EIN 237283604 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. International Union United Auto Aerospace & Agricultural Workers

    EIN 237288342 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. International Union United Auto Aerospace & Agricultural Workers

    EIN 237288343 · Headquarters: Janesville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. International Union United Auto Aerospace & Agricultural Workers

    EIN 237305136 · Headquarters: SHEBOYGAN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. International Union United Auto Aerospace & Agricultural Workers

    EIN 390368026 · Headquarters: WEST ALLIS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. International Union United Auto Aerospace & Agricultural Workers

    EIN 390917604 · Headquarters: OOSTBURG, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. International Union United Auto Aerospace & Agricultural Workers

    EIN 390988574 · Headquarters: FOND DU LAC, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. International Union United Auto Aerospace & Agricultural Workers O

    EIN 396078600 · Headquarters: SHEBOYGAN FLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. International Union United Auto Workers Local 291 AFL-CIO

    EIN 390730789 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. International Union UNITED AUTO WORKERS UNION LOCAL 95

    EIN 390669903 · Headquarters: JANESVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. International Wauwatosa Prof Fire Fighters Assn

    EIN 396092977 · Headquarters: Wauwatosa, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. 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

  28. Internatonal Society of Automation

    EIN 237439822 · Headquarters: Mukwonago, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. 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

  30. Intl Assn of Machinists & Aerospace Workers

    EIN 396055823 · Headquarters: Waterford, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Intl Assoc of Heat & Frost Insulators and Allied Workers Local 19

    EIN 390137350 · Headquarters: PEWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Intl Assoc of Lions - Greenville

    EIN 237390483 · Headquarters: GREENVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Intl Assoc of Lions-merrill Lions

    EIN 396095343 · Headquarters: MERRILL, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. Intl Association of Firefighters Local 1440

    EIN 391810040 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Intl Brhd Boilrmkrs Et Al Local 449

    EIN 390287153 · Headquarters: Sturgeon Bay, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Intl College of Dentists-Wisconsin Section

    EIN 208460977 · Headquarters: Sheboygan Falls, WI, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  37. Intl Lions Menomonie Lions Club

    EIN 396095340 · Headquarters: Menomonie, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Intl Union of Operating Engin Local 139

    EIN 390368025 · Headquarters: PEWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Intra-city Parishes of Manitowoc Inc

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

  40. Invest in Americas Future Inc

    EIN 932400386 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Invest in Ohio

    EIN 823731223 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Invitational Conference of Investigative Immunohematologists

    EIN 382189177 · Headquarters: MENOMONEE FALLS, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ioka Heights Foundation Inc

    EIN 394673225 · Headquarters: VERONA, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Iola Community Golf Club Inc

    EIN 391081147 · Headquarters: IOLA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Iola Historical Society

    EIN 391367891 · Headquarters: IOLA, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Iola Living Assistance Inc

    EIN 390754474 · Headquarters: IOLA, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  47. Iola Scandinavia Education Association

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

  48. Iola Winter Sports Club Inc

    EIN 391710244 · Headquarters: IOLA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Iola-scandinavia Auxiliary Association

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

  50. Iota Court Preservation Association Inc

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

  51. Iota of Alpha Gamma Rho

    EIN 396088381 · Headquarters: SUN PRAIRIE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Iota Sigma Chi

    EIN 900897644 · Headquarters: Menomonie, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  53. 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

  54. Iowa County Area Rea

    EIN 271701265 · Headquarters: Dodgeville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Iowa County Cancer Coalition Inc

    EIN 814867653 · Headquarters: COBB, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Iowa County Cattlemens Association Inc

    EIN 391250287 · Headquarters: Cobb, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Iowa County Fair Society Inc

    EIN 390831455 · Headquarters: MINERAL POINT, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Iowa County Hce

    EIN 391279338 · Headquarters: Hollandale, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Iowa County Historical Society Inc

    EIN 391258937 · Headquarters: Dodgeville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. 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

  61. Iowa Grant Elem Middle School Parent Teacher Club

    EIN 391831552 · Headquarters: Livingston, WI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. Iranian Americans for Liberty

    EIN 851988105 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Irene M Carlson Trust B

    EIN 416101735 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  64. Irie Child Inc

    EIN 812137650 · Headquarters: BURLINGTON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Irish Rovers Motorcycle Riding Club

    EIN 831409384 · Headquarters: Oconomowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  66. Irish Rovers Motorcycle Riding Group

    EIN 833496265 · Headquarters: Oconomowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  67. Iron County Fair Association

    EIN 396093930 · Headquarters: Saxon, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Iron County Historical Society Inc

    EIN 391251060 · Headquarters: Hurley, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Iron County Professional Police Association

    EIN 465742540 · Headquarters: Hurley, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Iron County Resource Development Association Inc

    EIN 391040414 · Headquarters: HURLEY, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Iron Dog Brigade

    EIN 363713163 · Headquarters: Danbury, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Iron Order Mc Badger Crew Corporation

    EIN 834368299 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Iron Ridge Fire Department Inc

    EIN 391774832 · Headquarters: Iron Ridge, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Iron River Area Foundation Inc

    EIN 391667325 · Headquarters: Iron River, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. 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

  76. 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

  77. Iron Workers Local Union 8 Joint Apprntcshp&adv Jrnymn Trng Tr Fd

    EIN 391143963 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Iron Workers Local Union No 849

    EIN 271128805 · Headquarters: HORICON, WI, USA · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  79. Irving & Dorothy Levy Family Foundation

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

  80. 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

  81. Isabel Schendel-robert & Josephine Pieper Tr

    EIN 396548921 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  82. Islamic Society of Northern Wi Inc

    EIN 311355629 · Headquarters: ALTOONA, WI, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  83. Island Association Inc

    EIN 930797535 · Headquarters: LaPointe, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Island City Cruisers

    EIN 202253317 · Headquarters: Cumberland, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  85. Island Lake Cemetery Association

    EIN 237346405 · Headquarters: Weyerhaeuser, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Island Lake Preservation Association Inc

    EIN 261169276 · Headquarters: SPOONER, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Island Memorial Medical Fund Inc

    EIN 237303696 · Headquarters: WASHINGTON ISLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  88. Island Players Inc

    EIN 391507933 · Headquarters: Washington Island, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Issue Uw

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

  90. Isthmus Dance Collective Incorporated

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

  91. Ithaca Education Association

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

  92. Ithaca Educational Support Staff

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

  93. Iue Cwa Local 800

    EIN 390733449 · Headquarters: SHEBOYGAN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Ivanhoe Commandery 24 Knights Temp

    EIN 237135724 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Iw & Carrie M Carpenter Scholarship

    EIN 470661090 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. Ixonia Volunteer Fire Department Incorporated

    EIN 396077356 · Headquarters: IXONIA, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  97. Izaak Walton League of America Bill Cook Chapter

    EIN 391553122 · Headquarters: STEVENS POINT, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. Izaak Walton League of America Inc

    EIN 237108560 · Headquarters: Watertown, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Izaak Walton League of America Inc

    EIN 391286037 · Headquarters: BENTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Izaak Walton League of America Inc

    EIN 521555285 · Headquarters: Greenleaf, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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