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. Hustisford Athletic Booster Club Inc

    EIN 391742346 · Headquarters: Iron Ridge, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Hustisford Teachers Association

    EIN 237082256 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Hwirwin & Dch Irwin Fdnferg

    EIN 931067941 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. Hyslop Foundation Inc DBA Hawthorn Hollow

    EIN 396061420 · Headquarters: Kenosha, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. I A T S E Local 470

    EIN 391479736 · Headquarters: Appleton, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. I O Youth Inc

    EIN 391589830 · Headquarters: RACINE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Iaff Local 1697 Afl-cio

    EIN 472706568 · Headquarters: MENOMONIE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Iaff Local 5026 Dells-delton Ems

    EIN 472811707 · Headquarters: Wisconsin Dells, WI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  9. Iarp-midwest Chapter

    EIN 393049010 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Iatse Local 414

    EIN 473675757 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  11. Iatse Local No 6 Health and Welfare Fund

    EIN 430791005 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Ice Age Trail Alliance Inc

    EIN 396076028 · Headquarters: CROSS PLAINS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Ice Sparklers Synchronized Skating Inc

    EIN 842045020 · Headquarters: OCONOMOWOC, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Ida Koran Trust

    EIN 416124022 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  15. Ida M Sivyer for Trades School

    EIN 396035625 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. Ida T Jacobs Testamentary Trust

    EIN 426311610 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Idun Corporation

    EIN 237525797 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Idun Lodge - Sons of Norway

    EIN 473980052 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  19. Iglesia Cristiana Venid a Mi

    EIN 461704961 · Headquarters: Sheboygan, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Iiba Northeast Wisconsin Chapter

    EIN 263840094 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Ikainian Px Incorporated

    EIN 923716371 · Headquarters: JANESVILLE, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Il003 Badger Chapter Reserve Officers Assoc of the United State

    EIN 992174612 · Headquarters: RIPON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Ill Threadz Mke Inc

    EIN 933288032 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Illinois Natural Medicine Alliance

    EIN 263837318 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  25. Illinois Society of Anesthesiologists

    EIN 362641668 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Illuminus Foundation Inc F/k/a Marquardt Foundation Inc

    EIN 391563808 · Headquarters: WATERTOWN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Im a Star

    EIN 473092527 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  28. Immanuel Cemetery Association

    EIN 352929331 · Headquarters: Clayton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Immanuel Evangelical Lutheran Church

    EIN 391528571 · Headquarters: Black Creek, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  30. Immanuel Lutheran Alumni Association Ltd

    EIN 391655244 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Immanuel Lutheran Church Endowment Foundation Inc

    EIN 237016862 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Impact Conference Inc

    EIN 832844565 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  33. Impact Group of the Valley Inc

    EIN 460782057 · Headquarters: Menasha, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  34. Impact Housing Capital Inc

    EIN 464042978 · Headquarters: RICE LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  35. Impact Preservation Corporation

    EIN 371581358 · Headquarters: RICE LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Impact Racing Foundation Inc

    EIN 814992953 · Headquarters: Luxemburg, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  37. Impact Seven Incorporated

    EIN 392025356 · Headquarters: ALMENA, WI, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  38. Impact Seven Incorporated

    EIN 392025362 · Headquarters: ALMENA, WI, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  39. Impact Seven Incorporated

    EIN 680587143 · Headquarters: ALMENA, WI, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  40. Impact Seven Incorporated

    EIN 680587144 · Headquarters: ALMENA, WI, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  41. Impact Seven Incorporated

    EIN 800371415 · Headquarters: Almena, WI, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  42. Impact Seven Incorporated D/b/a Group Return 9527

    EIN 300479790 · Headquarters: RICE LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Impact Theatre Company

    EIN 844053349 · Headquarters: Fond du Lac, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Impact Volleyball Club Inc

    EIN 814150793 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  45. In-tune Music Boosters

    EIN 510560093 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  46. Indee Snowrunners

    EIN 391420628 · Headquarters: Pardeeville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Independence Education Association

    EIN 237081124 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Independent Business Association of Wisconsin Inc

    EIN 237097343 · Headquarters: BROOKFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Independent Cemetery Company

    EIN 396100493 · Headquarters: Oak Creek, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Independent Employees Union of Hillshire Farms Co Inc

    EIN 396099808 · Headquarters: NEW LONDON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Independent Insurance Agents of Wisconsin Inc

    EIN 390711474 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Independent Order of Odd Fellows

    EIN 237606508 · Headquarters: WISCONSIN RAPIDS, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Independent Order of Odd Fellows

    EIN 416021727 · Headquarters: Holman, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Independent Order of Odd Fellows Wisconsin Grand Lodge

    EIN 390366558 · Headquarters: GREEN BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Independent Order of Vikings

    EIN 237548604 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Independent Pattern Makers Union of Neenah Wisconsin

    EIN 391537613 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Independent Scholastic Association Inc

    EIN 391695897 · Headquarters: MENOMONEE FALLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Indian Motorcycle Riders Group - Madison Wisconsin Inc

    EIN 843255773 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Indiana Fraternal Alliance

    EIN 463825642 · Headquarters: Athens, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Indianhead Chapter Wisconsin Academy Family Physicians

    EIN 300648942 · Headquarters: St Croix Falls, WI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Indianhead Community Action Agency Inc

    EIN 391086966 · Headquarters: LADYSMITH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Indianhead Credit Union

    EIN 396049800 · Headquarters: Spooner, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Indianhead Neca - Ibew Local 14 Welfare Fund

    EIN 396107561 · Headquarters: FALL CREEK, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Indianhead Polled Hereford Association

    EIN 473891426 · Headquarters: New Richmond, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  65. Indianhead Saddle Club Inc

    EIN 396066030 · Headquarters: RICE LAKE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Indianhead Scout Camps Inc

    EIN 391742316 · Headquarters: HOULTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Indigenous Youth Rising

    EIN 472210841 · Headquarters: SOUTH MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  68. Information Systems Audit and Control Association

    EIN 391400443 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Information Technology Association of Wisconsin Inc

    EIN 203006209 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  70. Initiative for Competitive Energy Inc

    EIN 471822094 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  71. Inland Lake Yachting Associationin

    EIN 391083870 · Headquarters: EAST TROY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Inland Snowblazers Inc

    EIN 391423359 · Headquarters: WHITELAW, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Innsbruck Well Trust

    EIN 396609422 · Headquarters: WEST SALEM, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. Inspiration Ministries

    EIN 390960668 · Headquarters: Walworth, WI, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Inspire Wi Inc

    EIN 872047909 · Headquarters: SHEBOYGAN, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Institute for Supply Mamagement- Milwaukee Inc

    EIN 396056176 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Institute for Supply Management - Chicago Inc

    EIN 361653394 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Institute for the Study of Human Awareness

    EIN 411443291 · Headquarters: BRUCE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Institute for Transportation and Prosperity

    EIN 813684698 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  80. Institute of Industrial Engineers Inc

    EIN 454941253 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  81. Institute of Internal Auditors

    EIN 391243979 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Institute of Internal Auditors

    EIN 391758874 · Headquarters: WRIGHTSTOWN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Institute of Internal Auditors

    EIN 800958978 · Headquarters: McFarland, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Institute of Management Accountants Inc

    EIN 237353630 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Institute of Management Accountants Inc

    EIN 391493924 · Headquarters: APPLETON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Institute of Management Accountants Inc

    EIN 391501410 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Institute of Transportation Engineers Wisconsin Section

    EIN 541025782 · Headquarters: Brookfield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Insulation Contractors Association of Northern Wi & Upper Michigan

    EIN 391663255 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Insulation Contractors Association of Northern Wi & Upper Michigan

    EIN 391663256 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Insulators Local 127

    EIN 390961791 · Headquarters: CLINTONVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Insurance Security Fund

    EIN 237365644 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Int Brotherhood Electrical Workers 1147

    EIN 390367728 · Headquarters: WISCONSIN RAPIDS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Int Brotherhood of Boilermakers 697 Lodge Ia 200606 05 00 1152

    EIN 396075975 · Headquarters: AUBURNDALE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Int'l Assn of Lions 10697 Fall Creek

    EIN 390963630 · Headquarters: FALL CREEK, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Int'l Assoc of Heat & Frost Allied

    EIN 431826500 · Headquarters: CLINTONVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. 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

  97. Int'l Assoc of Lions Waterford Lions Club

    EIN 396093876 · Headquarters: WATERFORD, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Integrated Community Work Inc

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

  99. Integrity Oklahoma Fund

    EIN 872116491 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Intenational Longshoremens Assoc C/o Esterbrooks Cpas

    EIN 416053877 · Headquarters: SUPERIOR, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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