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. Oshkosh Sawdust Days Inc

    EIN 391196423 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. Oshkosh Senior Softball

    EIN 391736491 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Oshkosh Spartan Softball Club Inc

    EIN 472161243 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  4. Oshkosh Spartan Wrestling Club

    EIN 274079619 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Oshkosh Symphony Orchestra

    EIN 396059075 · Headquarters: Oshkosh, WI, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Oshkosh Tavern League Foundation Inc

    EIN 464811743 · Headquarters: Oshkosh, WI, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Oshkosh Tennis Association Inc

    EIN 412268876 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Oshkosh Thunder Poker Run Inc

    EIN 391989073 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  9. Oshkosh Tool Library

    EIN 334770696 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Oshkosh Truck Credit Union

    EIN 390853308 · Headquarters: OSHKOSH, WI, USA · Public & Societal Benefit · Latest available filing year: 2019 · Primary form: IRS Form 990

  11. Oshkosh Ultralight Flyers Inc

    EIN 391651372 · Headquarters: WINNECONNE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Oshkosh United Soccer Club

    EIN 202442445 · Headquarters: OSHKOSH, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Oshkosh Warbirds Squadron 32

    EIN 824048781 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Oshkosh West Basketball Club Inc

    EIN 391834683 · Headquarters: Omro, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Oshkosh West Booster Club Inc

    EIN 271739724 · Headquarters: Oshkosh, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Oshkosh Wild Wrestling

    EIN 843858796 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Oshkosh Y Building Fund Inc

    EIN 813459685 · Headquarters: OSHKOSH, WI, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  18. Oshkosh Yacht Club Inc

    EIN 391524317 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Oshkosh YMCA

    EIN 390878909 · Headquarters: Oshkosh, WI, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Oshkosh Youth Baseball Inc

    EIN 391582877 · Headquarters: OSHKOSH, WI, US · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. Oshkosh Youth Hockey Association In

    EIN 391933476 · Headquarters: OSHKOSH, WI, USA · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  22. Oshkosh Youth Soccer Club Inc

    EIN 391571415 · Headquarters: OSHKOSH, WI, USA · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  23. Oshkosh Youth Symphony

    EIN 814244834 · Headquarters: OSHKOSH, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Oshkosh Youth Tag Rugby Inc

    EIN 812065243 · Headquarters: OSHKOSH, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Oshkosh Youth Wrestling Club Inc

    EIN 811159778 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Oshkosh Zoological Society Inc

    EIN 391383516 · Headquarters: Oshkosh, WI, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Osiecki Family Foundation Inc

    EIN 810895297 · Headquarters: RACINE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Oskeh Waep Coalition Inc

    EIN 824927185 · Headquarters: Keshena, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. Osman Foundation

    EIN 461319782 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Osprey Lake Property Owners Association

    EIN 263298438 · Headquarters: Hayward, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Osseo Area Community Theatre Inc

    EIN 203437011 · Headquarters: Osseo, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Osseo Area Economic Development Corp

    EIN 391615693 · Headquarters: Osseo, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Osseo Cemetery Association

    EIN 390848895 · Headquarters: OSSEO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Osseo Commercial Club Inc

    EIN 396078582 · Headquarters: Osseo, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Osseo Community Foundation Inc

    EIN 743134277 · Headquarters: Osseo, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Osseo Historical Society

    EIN 391834379 · Headquarters: Osseo, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Osseo Housing Inc

    EIN 391187696 · Headquarters: OSSEO, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Osseo Merchants Baseball Team Inc

    EIN 391956794 · Headquarters: Osseo, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Osseo Rod & Gun Inc

    EIN 391190981 · Headquarters: OSSEO, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  40. Osseo Sno-drifters Inc

    EIN 824022607 · Headquarters: Osseo, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Osseo Softball Association Inc

    EIN 396184769 · Headquarters: Osseo, WI, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  42. Osseo-fairchild Activities Booster Club

    EIN 270720017 · Headquarters: Osseo, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Osseo-fairchild Education Association

    EIN 237086056 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Osseo-fairchild Public Education Foundation Inc

    EIN 391965252 · Headquarters: Osseo, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Osseo-fairchild Support Education Association

    EIN 371568531 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. Osso Area Dusty Riders Inc

    EIN 364899718 · Headquarters: OSSEO, WI, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Ostara Folk School Inc

    EIN 921374297 · Headquarters: VALDERS, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Oster Fbo St Boniface Cem

    EIN 396140677 · Headquarters: MILWAUKEE, WI, USA · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  49. Oster for Columbus High Sch

    EIN 396283072 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  50. Other Guys Law Enforcement Motorcycle Club Inc

    EIN 364813191 · Headquarters: Little Suamico, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Otherlands Inc

    EIN 825267480 · Headquarters: Appleton, WI, US · Arts, Culture & Humanities · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Otis Green Foundation Inc

    EIN 464779157 · Headquarters: Fontana, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Otis Progeny Inc

    EIN 474313143 · Headquarters: Washburn, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Ottenstein Family Foundation Inc

    EIN 526036064 · Headquarters: MILWAUKEE, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  55. Otter Creek Christian Fellowship

    EIN 260452343 · Headquarters: Wheeler, WI, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Otter Lake Booster Club Inc

    EIN 800443204 · Headquarters: Stanley, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Otterhound Club of America Reproduction Bank Inc

    EIN 820633021 · Headquarters: Egg Harbor, WI, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Otto and Carol Gebhardt Foundation

    EIN 811568779 · Headquarters: MIDDLETON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Otts Garage Inc

    EIN 205460051 · Headquarters: Merrill, WI, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Otzen Family Foundation Incorporated

    EIN 391919852 · Headquarters: LAKE GENEVA, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. Ouisconsing School of Collaboration Inc

    EIN 462284772 · Headquarters: Lodi, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Oulu Cultural & Heritage Center

    EIN 452786171 · Headquarters: Iron River, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Oulu Historical Society Inc

    EIN 465599525 · Headquarters: Iron River, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Our Amazing Grace's Light Shines on Inc

    EIN 874653556 · Headquarters: SEYMOUR, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. Our American Future Inc

    EIN 921976795 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Our Blessed Lady of Victory

    EIN 396284810 · Headquarters: MILWAUKEE, WI, USA · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990

  67. Our Community Ltd

    EIN 472343697 · Headquarters: Milwaukee, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  68. Our Daily Bread Community Outreach Center

    EIN 113734823 · Headquarters: MILWAUKEE, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Our Daily Threads Inc

    EIN 320052686 · Headquarters: Green Bay, WI, US · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  70. Our Father's Charitable Foundation Inc

    EIN 274385705 · Headquarters: MIDDLETON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  71. Our Future Matters Inc

    EIN 850935176 · Headquarters: Madison, WI, US · Public & Societal Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  72. Our Future Milwaukee Coalition Ua

    EIN 934801353 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Our Hands Are His Inc

    EIN 273507654 · Headquarters: Webster, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Our Harmony Club Inc

    EIN 473539542 · Headquarters: MOUNT PLEASANT, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Our Home Christian Ministries Inc

    EIN 391949498 · Headquarters: OOSTBURG, WI, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Our Hope Inc

    EIN 391966853 · Headquarters: Hartland, WI, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Our Hope of Burlington Inc

    EIN 391985982 · Headquarters: Burlington, WI, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  78. Our Journey Rooted in Hope Inc

    EIN 993359766 · Headquarters: Appleton, WI, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Our Kids Closet Inc

    EIN 994375281 · Headquarters: COLGATE, WI, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Our Lady of Fatima Catholic School of India Inc

    EIN 455039530 · Headquarters: COLFAX, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Our Lady of Fatima Home Visitation Program

    EIN 383371302 · Headquarters: OCONOMOWOC, WI, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Our Lady of Good Counsel Inc

    EIN 852489521 · Headquarters: GREEN BAY, WI, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Our Lady of Good Hope Credit Union

    EIN 390939059 · Headquarters: Milwaukee, WI, USA · Public & Societal Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990

  84. Our Lady of Grace Catholic Spirituality Center Inc

    EIN 800619712 · Headquarters: WAUWATOSA, WI, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Our Lady of Guadalupe Conference Society of St Vincent De Paul

    EIN 461067517 · Headquarters: RACINE, WI, US · Religion Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  86. Our Lady of Hope Clinic Inc

    EIN 262798256 · Headquarters: MIDDLETON, WI, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Our Lady of Kibeho Basilica Foundation Inc

    EIN 823282092 · Headquarters: Green Bay, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Our Lady of Lourdes Society

    EIN 464745210 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Our Lady of the Lake Foundation Inc

    EIN 481277320 · Headquarters: Cedar Grove, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  90. Our Mental Illness

    EIN 833437952 · Headquarters: Neillsville, WI, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  91. Our Musical Life Inc

    EIN 455609083 · Headquarters: Racine, WI, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  92. Our Nawakwa Inc

    EIN 921234189 · Headquarters: CHIPPEWA FALLS, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Our Neighbors Place Inc

    EIN 352383155 · Headquarters: RIVER FALLS, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Our Next Generation Homework & Robotics 4 H Club

    EIN 300715816 · Headquarters: Wauwatosa, WI, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  95. Our Next Generation Inc

    EIN 391761838 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Our Pack Animal Rescue, Inc.

    EIN 842566227 · Headquarters: New London, WI, United States · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Our Safe Place Inc

    EIN 050616056 · Headquarters: FRANKLIN, WI, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Our Saviors Lutheran Cemetary Assn

    EIN 391039351 · Headquarters: Beldenville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Our Saviours Cemetery Association

    EIN 271280682 · Headquarters: Germantown, WI, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Our Scholarship Inc

    EIN 843753277 · Headquarters: Milwaukee, WI, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

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