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. Osiecki Family Foundation Inc

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

  2. Osman Foundation

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

  3. Osseo Area Economic Development Corp

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

  4. Osseo Cemetery Association

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

  5. Osseo Commercial Club Inc

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

  6. Osseo Housing Inc

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

  7. Osseo Rod & Gun Inc

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

  8. Osseo-fairchild Education Association

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

  9. Osseo-fairchild Support Education Association

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

  10. Ostara Folk School Inc

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

  11. Oster for Columbus High Sch

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

  12. 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

  13. Our American Future Inc

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

  14. Our Future Milwaukee Coalition Ua

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

  15. Our Lady of Lourdes Society

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

  16. Our Mental Illness

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

  17. Our Next Generation Inc

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

  18. Our Saviors Lutheran Cemetary Assn

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

  19. Our Space Inc

    EIN 391605904 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Our Treasures Inc

    EIN 464838874 · Headquarters: Brookfield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Our Way Inc

    EIN 391289123 · Headquarters: Merrill, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Out Families

    EIN 854201565 · Headquarters: Oak Creek, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Outagamie Conservation Club Inc

    EIN 237271912 · Headquarters: HORTONVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Outagamie County Bar Association

    EIN 460577549 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Outagamie County Deputy Sheriffs Association

    EIN 391375895 · Headquarters: Appleton, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Outagamie County Farm Bureau Cooperative

    EIN 390989696 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Outagamie County Housing Inc Dba Nahbrs

    EIN 391652869 · Headquarters: APPLETON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  28. Outagamie County Rea

    EIN 271697081 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Outagamie Soil Conservation and Improvement Association Inc

    EIN 237317475 · Headquarters: Seymour, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Outdoor Advertising Assoc of Wisc Assoc of Wisc

    EIN 391599387 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Outfitters Hnf

    EIN 934362904 · Headquarters: Salem, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Outlet Plugging People in Inc

    EIN 462602801 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  33. Overdrive Cycling Club

    EIN 472762489 · Headquarters: ELK MOUND, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  34. Overeaters Anonymous Milwaukee Area Intergroup

    EIN 391373138 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Overeaters Anonymous Sun Am Group

    EIN 510602087 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Overlook Farms Homes Assn Inc

    EIN 396077972 · Headquarters: Greendale, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Owen-withee Education Association

    EIN 237086954 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Owen-withee Youth Cheerleading Inc

    EIN 392388837 · Headquarters: OWEN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Oxford Cemetery Association

    EIN 390831681 · Headquarters: OXFORD, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Oxford Youth Wrestling Club Inc

    EIN 811166983 · Headquarters: oxford, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  41. Ozaukee County 4-H Foundation Inc

    EIN 391724064 · Headquarters: CEDARBURG, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Ozaukee County Area Retired Teachers Association

    EIN 800484911 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Ozaukee County Dairy Promotion Committee Inc

    EIN 391509993 · Headquarters: Belgium, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Ozaukee County Medical Society

    EIN 270372237 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Ozaukee Day Care Center Inc Ozaukee Child Care & Preschool

    EIN 391218379 · Headquarters: MEQUON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Ozaukee Deputy Sheriffs Association

    EIN 237181496 · Headquarters: Grafton, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Ozawkee Childrens Tour Club

    EIN 392020772 · Headquarters: Cedarburg, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  48. Ozzies Pitch-22 Foundation

    EIN 811070696 · Headquarters: Sussex, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  49. P B W Inc

    EIN 391667884 · Headquarters: Plymouth, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Packerland Kennel Club Inc

    EIN 396076169 · Headquarters: GREEN BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Packerland Sunrise Rotary Club

    EIN 274740037 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Paddle Power and Sail Lake Winnebago Inc

    EIN 943444820 · Headquarters: Fond du Lac, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Pagan Pride Project Inc

    EIN 451887198 · Headquarters: Monona, WI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  54. Pagel Graphic Arts Scholarship Trust Fund

    EIN 391674169 · Headquarters: Lannon, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. Painters & Allied Trades District Council No 7

    EIN 320081499 · Headquarters: BIG BEND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Painters Local 802 Health and Welfare Fund

    EIN 396078181 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Painters Local Union 802

    EIN 390523644 · Headquarters: BIG BEND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. Pak-american Coalition Fund

    EIN 921243588 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Palmer Ritchie Thomas Post No 153 of the American Legion

    EIN 396075399 · Headquarters: PITTSVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Palmer-ritchie Thomas American Legion Auxilary

    EIN 396089079 · Headquarters: Pittsville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Palmyra Ridge Riders Inc

    EIN 237167050 · Headquarters: Palmyra, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Paper City Kennel Club Inc

    EIN 396085572 · Headquarters: WAUSAU, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Papermaker Wrestling Club

    EIN 391484965 · Headquarters: APPLETON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Paralyzed Veterans of America - Wisconsin Chapter

    EIN 391393216 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  65. Pardeeville Education Association

    EIN 237098443 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Pardeeville Ffa Alumni Association

    EIN 391830897 · Headquarters: Rio, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Pardeeville Lions Club Foundation I Nc

    EIN 422754492 · Headquarters: Pardeeville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Parent Booster USA Inc

    EIN 451501951 · Headquarters: Melrose, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Parent Booster USA Inc

    EIN 472097030 · Headquarters: West Bend, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Parent Booster USA Inc

    EIN 475385623 · Headquarters: Stoughton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Parent Booster USA Inc

    EIN 812855305 · Headquarters: Milton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Parent Booster USA Inc

    EIN 824690623 · Headquarters: Warrens, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Parent Booster USA Inc

    EIN 825238932 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Parent Booster USA Inc

    EIN 830842101 · Headquarters: Onalaska, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Parent Booster USA Inc

    EIN 884341311 · Headquarters: Schofield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Parent Booster USA Inc

    EIN 923943949 · Headquarters: Beloit, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Parent Booster USA Inc

    EIN 931651968 · Headquarters: Somerset, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Parents Cooperative Preschool

    EIN 391374848 · Headquarters: FORT ATKINSON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Parents Families and Friends of Lesbians and Gays Inc

    EIN 262620787 · Headquarters: Manitowoc, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Parents for Public Schools Inc

    EIN 800835383 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  81. Parents Place Inc

    EIN 391513200 · Headquarters: WAUKESHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Parish Evaluation Project

    EIN 510225514 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. Park and Forestry Employees Labor a Ssociation

    EIN 364812276 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Park Falls Area Community Development Corporation

    EIN 391878528 · Headquarters: Park Falls, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Park Falls Chamber of Commerce

    EIN 390936347 · Headquarters: PARK FALLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Park Falls Education Association

    EIN 237083197 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Parkcrest Swim & Tennis Club Inc

    EIN 391085273 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Parke Society Inc

    EIN 066083244 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Parker Foundation

    EIN 396074582 · Headquarters: JANESVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  90. Parkside Basketball Academy Inc

    EIN 815153786 · Headquarters: Mt Pleasant, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  91. Pars for Patriots Inc

    EIN 850639210 · Headquarters: FISH CREEK, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Partners in Recovery Inc

    EIN 391533773 · Headquarters: ASHLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  93. Partners of Memorial Medical Center

    EIN 237317450 · Headquarters: ASHLAND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Partners of Richland Hospital Inc

    EIN 391693458 · Headquarters: RICHLAND CENTER, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Partners of Wisconsin Health & Hospital Association Inc

    EIN 391458690 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Partners with Marshfield Medical Center Inc

    EIN 396094701 · Headquarters: MARSHFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  97. Partnership for Sustainable Aid Inc

    EIN 275200850 · Headquarters: Pewaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Partridge Lake Sanitation District

    EIN 900456256 · Headquarters: Mauston, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Party-girls Pin-ups Inc

    EIN 455634288 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Passages a Program for Survivors of Domestic Violence and Sexual Assault

    EIN 391361342 · Headquarters: RICHLAND CENTER, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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