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. Columbian Inc

    EIN 396075630 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Columbian Realty Co

    EIN 390883953 · Headquarters: Marinette, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Columbiettes Incorporated

    EIN 301030384 · Headquarters: Elkhorn, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Columbus Association of Chippewa Falls Inc

    EIN 391934240 · Headquarters: Chippewa Falls, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Columbus Chamber of Commerce Inc

    EIN 396127487 · Headquarters: Columbus, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Columbus Club House

    EIN 391650464 · Headquarters: Columbus, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Columbus Club of Stevens Point Inc

    EIN 396078190 · Headquarters: Stevens Point, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Columbus Corporation of Sun Prairie

    EIN 391286484 · Headquarters: SUN PRAIRIE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Columbus Education Association

    EIN 263443083 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Columbus Educational Foundation Inc

    EIN 391269077 · Headquarters: MARSHFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Columbus Preschool Inc

    EIN 391192835 · Headquarters: Columbus, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Columbus Sportsmans Assoc Inc

    EIN 392005532 · Headquarters: Columbus, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Columbus-fall River Optimist Club

    EIN 934014996 · Headquarters: Lowell, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  14. Columbus-fall River Sno-blazers Inc

    EIN 510188980 · Headquarters: Columbus, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Combined Guardians Inc

    EIN 814565742 · Headquarters: Combined Locks, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Come Together Lake Country Inc

    EIN 921629169 · Headquarters: Hartland, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Commercial Association of Realtors of Wisconsin Inc

    EIN 391772140 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Committee to Reelect Marilyn K Franklin

    EIN 472716620 · Headquarters: Fox Point, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  19. Common Arts Inc

    EIN 391661753 · Headquarters: Lafarge, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Common Sense for America Inc

    EIN 994171383 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Communication Connections

    EIN 275056731 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  22. Communication Workers of America

    EIN 390828901 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  23. Communication Workers of America

    EIN 390933139 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. Communication Workers of America

    EIN 390972525 · Headquarters: Racine, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Communication Workers of America

    EIN 391161032 · Headquarters: Elkhorn, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  26. Communication Workers of America

    EIN 391170271 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Communication Workers of America

    EIN 391178856 · Headquarters: SUN PRAIRIE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Communication Workers of America

    EIN 396075620 · Headquarters: Eau Claire, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  29. Communication Workers of America

    EIN 396075864 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Communication Workers of America

    EIN 396077907 · Headquarters: JANESVILLE, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  31. Communication Workers of America

    EIN 396089100 · Headquarters: Wisconsin Rapids, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Communication Workers of America

    EIN 396126178 · Headquarters: milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Communications Workers of America Local 4603

    EIN 390821675 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Communications Workers of America Local 4603 Retired Members

    EIN 611723394 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Communities Youth Activities Council Ltd

    EIN 237296769 · Headquarters: Waukau, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Community Action Coalition for South Central Wisconsin Inc

    EIN 391053827 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Community Advocates Inc

    EIN 391249426 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Community Associations Institute - Wisconsin Chapter

    EIN 432043022 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Community for Responsible Government Inc

    EIN 852599604 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Community Fun Events Inc

    EIN 391613362 · Headquarters: MEQUON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Community Housing & Preservation Corporation

    EIN 391446011 · Headquarters: WAUWATOSA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Community Housing of La Crosse Inc

    EIN 391586700 · Headquarters: LA CROSSE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Community League Incorporated

    EIN 391457714 · Headquarters: MENOMONEE FALLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Community Learning Center Inc

    EIN 391366928 · Headquarters: PORT WASHINGTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Community Nursery School of Appleton Inc

    EIN 391309698 · Headquarters: Appleton, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Community Outpatient Health Services of Menomonee Falls Inc

    EIN 391743056 · Headquarters: MENOMONEE FALLS, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Community Parks Improvement Committee Inc

    EIN 391651709 · Headquarters: Stevens Point, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Community Preschool of Whitefish Bay Inc

    EIN 391150877 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  49. Community Referral Agency Inc

    EIN 391368945 · Headquarters: MILLTOWN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Community Shares of Greater Milwaukee

    EIN 391362120 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  51. Community Shares of Wisconsin Inc

    EIN 391172378 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Community Thrift Store of Portage County Inc

    EIN 391459694 · Headquarters: Stevens Point, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Company a Twenty Year Club

    EIN 460586117 · Headquarters: Marinette, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Competitive Wisconsin Inc

    EIN 391398399 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. Computer Club of Kenosha Senior Center

    EIN 464854133 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  56. Concerned Auto Recyclers of Wisconsin

    EIN 391315714 · Headquarters: SURING, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Concerned Citizens Coalition

    EIN 331347315 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Concord Chamber Orchestra Incorpora

    EIN 391496749 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Conexiones Inc

    EIN 853891595 · Headquarters: GREENFIELD, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Conference of Grand Masters of Masons in North America Inc

    EIN 800282526 · Headquarters: Dousman, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Confrerie De-la-chaine Des Rotisseurs Ltd

    EIN 391785071 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. Confrerie De-la-chaine Des Rotisseurs Ltd

    EIN 921994139 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Connect-nourish-grow Inc

    EIN 921315058 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Connor Foundation

    EIN 396126564 · Headquarters: WISCONSIN RAPIDS, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. Conover Chamber of Commerce Incorporated

    EIN 391161621 · Headquarters: CONOVER, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  66. Conover Lions Club Inc

    EIN 391213244 · Headquarters: Conover, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Conradh Na Gaeilge-craobh Curtin

    EIN 391894198 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Conscientious Conservatives Club

    EIN 874348425 · Headquarters: Oregon, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  69. Conservation Club of Kenosha County Inc

    EIN 390923333 · Headquarters: KENOSHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Conservation Education Inc of Manitowoc County Wisconsin

    EIN 396054610 · Headquarters: Reedsville, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Conservatives for a Strong America Action Fund

    EIN 861663140 · Headquarters: HUDSON, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  72. Constitutional Policing Support Fun D

    EIN 412574096 · Headquarters: BROOKFIELD, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Constitutional Rights Defense Fund

    EIN 881469123 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Constr & Gen Laborers Local 330 Local Union No 330

    EIN 201169193 · Headquarters: MENASHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Construction and General Laborers Union Local Number 464

    EIN 390189279 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Construction Financial Management Association

    EIN 391680576 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Construction Financial Management Association

    EIN 391728050 · Headquarters: Beaver Dam, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Construction Financial Management Association of Milwaukee

    EIN 222766424 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Construction Labor Management Council of Greater Wisconsin Inc

    EIN 391638209 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Continue to Give Inc

    EIN 453546491 · Headquarters: birnamwood, WI, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  81. Coon Valley Business Association

    EIN 455029087 · Headquarters: Coon Valley, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Coon Valley Conservation Club Inc

    EIN 391392976 · Headquarters: COON VALLEY, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Cooper Student Aid Fund

    EIN 936155856 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  84. Cooperating Churches of Sussex Inc

    EIN 391746231 · Headquarters: Sussex, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Cooperative Educational Service Agency 9 Education Association

    EIN 392025126 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Cooperative Educational Service Agency Employees for Equity Organi

    EIN 753195979 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Cooperative Network

    EIN 391128018 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Copernicus Cultural Foundation of Stevens Point Wisconsin Inc

    EIN 237190284 · Headquarters: MOSINEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  89. Copp Cemetery Association

    EIN 930852881 · Headquarters: JIM FALLS, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Copper River Midnight Riders Inc

    EIN 391521433 · Headquarters: Merrill, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Cor Development Ltd

    EIN 991729774 · Headquarters: Racine, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Cora Rust Owen Memorial Trust

    EIN 816057848 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. Cornell Auxiliary Personnel

    EIN 262772051 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Cornell Education Association

    EIN 237086047 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Cornell Mill Yard Park Development Corporation

    EIN 391514569 · Headquarters: Cornell, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  96. Cornerstone Foundation of Northeastern Wisconsin Inc

    EIN 362761910 · Headquarters: GREEN BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  97. Corry T Meeker Trust

    EIN 436019664 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Corvettes of the North Inc

    EIN 930823274 · Headquarters: Wisc Rapids, WI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  99. Cosmic Clovers 4-H Club

    EIN 922158103 · Headquarters: RICE LAKE, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Cottage Grove Area Historical Society Inc

    EIN 391642923 · Headquarters: COTTAGE GROVE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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