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. American Federation of State County & Municipal Employees

    EIN 611630288 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Federation of State County & Municipal Employees

    EIN 753167083 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Federation of State County & Municipal Employees

    EIN 770721010 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Federation of State County & Municipal Employees

    EIN 800170114 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Federation of State County & Municipal Employees

    EIN 800176299 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  6. American Federation of State County & Municipal Employees

    EIN 800250267 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. American Federation of State County & Municipal Employees

    EIN 800251521 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Federation of State County & Municipal Employees

    EIN 800282776 · Headquarters: LA CROSSE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. American Federation of State County & Municipal Employees

    EIN 830452612 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. American Federation of State County & Municipal Employees

    EIN 862260472 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Federation of State County & Municipal Employees

    EIN 900356062 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. American Federation of State County & Municipal Employees

    EIN 900409562 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Federation of State County & Municipal Employees

    EIN 901023337 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Federation of State County & Municipal Employees

    EIN 930737580 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Federation of State County & Municipal Employees

    EIN 930795548 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. American Federation of State County & Municipal Employees

    EIN 930838485 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Federation of State County and Municipal Employees

    EIN 391373524 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Federation of State County and Municipal Employees

    EIN 421759463 · Headquarters: EAU CLAIRE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Federation of State County and Municipali

    EIN 237397933 · Headquarters: JANESVILLE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Federation of Teachers

    EIN 201649817 · Headquarters: Hortonville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. American Federation of Teachers

    EIN 237063285 · Headquarters: Middleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Federation of Teachers

    EIN 237070279 · Headquarters: Greenfield, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. American Federation of Teachers

    EIN 237183384 · Headquarters: Janesville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Federation of Teachers

    EIN 237435143 · Headquarters: Butternut, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  25. American Federation of Teachers

    EIN 391265834 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Federation of Teachers

    EIN 391282217 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. American Federation of Teachers

    EIN 391479004 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. American Federation of Teachers

    EIN 391730724 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. American Federation of Teachers

    EIN 396077934 · Headquarters: Maple, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Federation of Teachers

    EIN 873593487 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. American Federation of Teachers 243 Madison Technical College

    EIN 396078655 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. American Federation of Teachers 5000 Nurses & Health Professionals

    EIN 391336926 · Headquarters: WEST MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. American Federation of Teachers Local 212

    EIN 391179199 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. American Federation of Teaching 3220 Teaching Assistants Assoc

    EIN 391544200 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. American Federation State County & Municipal Employees Local 171

    EIN 390758401 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Fence Association Inc

    EIN 582211064 · Headquarters: Jefferson, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  37. American Finnish Workers Educ Tr

    EIN 416018271 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. American Fisheries Society

    EIN 237226684 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American Foundry Society - Ne Wisconsin Chapter

    EIN 396127483 · Headquarters: BERLIN, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  40. American Foundry Society Wi Chapter

    EIN 396076523 · Headquarters: GERMANTOWN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. American Guild of Organists

    EIN 396075368 · Headquarters: Viroqua, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Guild of Organists

    EIN 396081135 · Headquarters: Hilbert, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Guild of Organists 647 Wisconsin River Chapter

    EIN 391375366 · Headquarters: Wausau, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. American Guild of Organists Ago

    EIN 411284087 · Headquarters: Superior, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Harp Society

    EIN 270226212 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. American Humanist Association

    EIN 992106405 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. American Immigration Lawyers Association

    EIN 391508164 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. American Indian Center of Milwaukee Inc

    EIN 391572029 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. American Industrial Hygiene Association

    EIN 391383980 · Headquarters: Johnson Creek, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. American Innovation the Ai Project

    EIN 834688901 · Headquarters: HUDSON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. American Inns of Court Foundation

    EIN 263605957 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. American Inns of Court Foundation

    EIN 391729912 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. American Institute of Aeronautics and Astronautics

    EIN 391704564 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. American Institute of Aeronautics and Astronautics

    EIN 391724072 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. American Institute of Graphic Arts

    EIN 900409091 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. American Institute of Industrial Engineers Inc

    EIN 510153744 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Institute of Industrial Engineers Inc

    EIN 510225508 · Headquarters: Platteville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. American Institute of Pakistan Studies

    EIN 710762618 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  59. American Institute of the History of Pharmacy

    EIN 390128183 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. American Iris Society

    EIN 061815901 · Headquarters: Brooklyn, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Legion

    EIN 043841023 · Headquarters: BLOOMINGTON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Legion

    EIN 201986115 · Headquarters: CRANDON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Legion

    EIN 237006111 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Legion

    EIN 237058533 · Headquarters: Ridgeway, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Legion

    EIN 237064002 · Headquarters: Soldiers Grove, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Legion

    EIN 237064657 · Headquarters: Denmark, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. American Legion

    EIN 237065307 · Headquarters: MUSCODA, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Legion

    EIN 237084568 · Headquarters: Fennimore, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Legion

    EIN 237084579 · Headquarters: Kaukauna, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. American Legion

    EIN 237084584 · Headquarters: CLEAR LAKE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American Legion

    EIN 237085884 · Headquarters: LUBLIN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American Legion

    EIN 237098299 · Headquarters: La Valle, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Legion

    EIN 237098301 · Headquarters: Hartford, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. American Legion

    EIN 237136723 · Headquarters: Caroline, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Legion

    EIN 237136725 · Headquarters: Franksville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. American Legion

    EIN 237136735 · Headquarters: Prescott, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. American Legion

    EIN 237144708 · Headquarters: De Pere, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Legion

    EIN 237188994 · Headquarters: POTOSI, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Legion

    EIN 237204661 · Headquarters: Random Lake, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Legion

    EIN 237228570 · Headquarters: Eagle, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. American Legion

    EIN 237283578 · Headquarters: HAYWARD, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. American Legion

    EIN 237433596 · Headquarters: Clintonville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Legion

    EIN 261994240 · Headquarters: Hurley, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. American Legion

    EIN 262106269 · Headquarters: Beloit, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. American Legion

    EIN 262152495 · Headquarters: Rib Lake, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Legion

    EIN 262170521 · Headquarters: PITTSVILLE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Legion

    EIN 262347806 · Headquarters: Shiocton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. American Legion

    EIN 262473857 · Headquarters: FENNIMORE, WI, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  89. American Legion

    EIN 262486881 · Headquarters: Brodhead, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. American Legion

    EIN 262511597 · Headquarters: Odanah, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. American Legion

    EIN 263003949 · Headquarters: Augusta, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Legion

    EIN 263082724 · Headquarters: Steuben, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Legion

    EIN 364631077 · Headquarters: SOUTH RANGE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American Legion

    EIN 364784039 · Headquarters: Muscoda, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. American Legion

    EIN 371661154 · Headquarters: CUSHING, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Legion

    EIN 372094773 · Headquarters: Plymouth, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. American Legion

    EIN 383899916 · Headquarters: Casco, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Legion

    EIN 390128330 · Headquarters: Ashland, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. American Legion

    EIN 390407795 · Headquarters: Lake Geneva, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. American Legion

    EIN 390730844 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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