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. Shell Lake Chamber of Commerce Inc

    EIN 391423086 · Headquarters: SHELL LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. Shelter from the Storm Animal Rescue Inc

    EIN 203627106 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Sherman Park Community Association Inc

    EIN 237281891 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Sherman Park Housing Advancement Cooperative Inc

    EIN 882599281 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Shillelagh Foundation Inc

    EIN 392179058 · Headquarters: STOUGHTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Shiocton Business League Inc

    EIN 399348562 · Headquarters: Shiocton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Shiocton Education Association

    EIN 237078930 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Shiocton Hoops Club

    EIN 391954252 · Headquarters: Shiocton, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. Shiocton Summer Sports Inc

    EIN 391674734 · Headquarters: SHIOCTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Shirley Butzin Charitable Fund

    EIN 364994059 · Headquarters: APPLETON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. Shobi Machir Barzillia Inc

    EIN 884401144 · Headquarters: APPLETON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Shomos Family Foundation Ltd C/o Godfrey & Kahn Sc

    EIN 391622902 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Shoreline Womans Club

    EIN 237014957 · Headquarters: Sheboygan, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Shoreplace Homeowners Association

    EIN 391637789 · Headquarters: Cambridge, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Shorewood Booster Club Inc

    EIN 391690819 · Headquarters: SHOREWOOD, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Shorewood Education Association

    EIN 237084740 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Shorewood Foundation Inc

    EIN 396081099 · Headquarters: SHOREWOOD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Shorewood Hills Community League Inc

    EIN 391748392 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Shorewood Hills Foundation Inc

    EIN 391241131 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Shorewood Hills Law Enforcement Association

    EIN 392039640 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Short Wing Piper Club Inc

    EIN 592911733 · Headquarters: Baraboo, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Shrine Directors Association

    EIN 310972521 · Headquarters: OAK CREEK, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Shrine of Our Lady of Guadalupe

    EIN 391982320 · Headquarters: La Crosse, Wisconsin, United States · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  24. Shriners International

    EIN 237319603 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Shriners International

    EIN 237319604 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Shriners International

    EIN 237319605 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Shriners International

    EIN 237319606 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Shriners International

    EIN 237319813 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Shriners International

    EIN 237319878 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Shriners International

    EIN 237319885 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Shriners International

    EIN 237319906 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Shriners International

    EIN 237320300 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Shriners International

    EIN 237320301 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Shriners International

    EIN 237324839 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Shriners International

    EIN 237325142 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Shriners International

    EIN 237361963 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Shriners International

    EIN 237410951 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Shriners International

    EIN 391448391 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Shriners International

    EIN 581752721 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Shriners International

    EIN 581870399 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Shriners International

    EIN 901674296 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Shriners International Appleton Shrine Club

    EIN 237324701 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Shriners International Fond Du Lac Shrine Club

    EIN 237324698 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Shriners International Green Bay Shrine Club

    EIN 237324697 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Shriners International Inter-city Shine Club

    EIN 581753466 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Shriners International Kenosha Shrine Club

    EIN 237324694 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  47. Shriners International Lake Shore Shrine Club

    EIN 237324693 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Shriners International North Shore Shrine Club

    EIN 371793823 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Shriners International Northern Lights Shrine Club

    EIN 753131248 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Shriners International Northwoods Shrine Club

    EIN 237324692 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Shriners International Oconto County Shrine Club

    EIN 237324689 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Shriners International Peninsula Shrine Club

    EIN 237324688 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Shriners International Shawano Shrine Club

    EIN 510182522 · Headquarters: GREEN BAY, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Shriners International Sheboygan County Shrine Club

    EIN 237324686 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Shriners International Tri-county Shrine Club

    EIN 237324685 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Shriners International Waukesha County Shrine Club

    EIN 237324682 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Shriners International West Allis Shrine Club

    EIN 237324681 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Shriners International Whitnall Park Shrine Club

    EIN 237324680 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Shriners International Winnebagoland Shrine Club

    EIN 237324679 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Shullsburg Lions Club Inc

    EIN 391502194 · Headquarters: Shullsburg, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Shullsburg Memorial Hospital Association

    EIN 396057268 · Headquarters: Shullsburg, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Siebecker Foundation Inc

    EIN 237417555 · Headquarters: WAUSAU, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  63. Siebert Lutheran Foundation Inc

    EIN 396050046 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Sigma Chi Fraternity

    EIN 390972993 · Headquarters: Beloit, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  65. Sigma Delta Epsilon Graduate Women in Science Inc

    EIN 396077394 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Sigma Gamma Rho Sorority Inc

    EIN 396020472 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Sigma Gamma Rho Sorority Inc

    EIN 911836053 · Headquarters: WHITEWATER, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Sigma Gamma Rho Sorority Inc

    EIN 930813688 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sigma Gamma Rho Sorority Inc - Theta Zeta

    EIN 800436960 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 260185712 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Sigma Phi Epsilon Fraternity Inc

    EIN 391651726 · Headquarters: Waterford, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Sigma Phi Epsilon Fraternity Inc

    EIN 911822000 · Headquarters: Platteville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Sigma Pi Fraternity International

    EIN 396100409 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Sigma Pi Fraternity International Inc

    EIN 237127775 · Headquarters: Platteville, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Sigma Pi Fraternity International Inc

    EIN 800358763 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Sigma Psi Zeta Sorority Inc - Alpha Pi

    EIN 841797685 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Sigma Sigma Sigma Inc

    EIN 463903024 · Headquarters: Greenville, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Sigma Sigma Sigma Inc

    EIN 475510405 · Headquarters: New Berlin, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sigma Sigma Sigma Madison Area Alumnae Chapter

    EIN 264593474 · Headquarters: Janesville, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  80. Sigma Tau Gamma Fraternity D/b/a Eta Nu

    EIN 842623136 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  81. Sigma Theta Tau Inc

    EIN 237243779 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  82. Sigma Theta Tau Inc

    EIN 311246730 · Headquarters: Green Bay, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Sigma Theta Tau Inc

    EIN 391490392 · Headquarters: Shorewood, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Sigma Theta Tau Inc

    EIN 391490393 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Sigma Theta Tau Inc

    EIN 621092108 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Sigma Theta Tau International Inc

    EIN 883505078 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Sigma Theta Tau International Inc

    EIN 900266168 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Sigma Theta Tau International Inc

    EIN 900266171 · Headquarters: Fox Point, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  89. Sigma Theta Tau International Inc

    EIN 900487006 · Headquarters: Mequon, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Sigma Theta Tau International Inc

    EIN 912039509 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Signing Student Association

    EIN 200808824 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  92. Sikh Religious Society of Wisconsininc

    EIN 391287835 · Headquarters: BROOKFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Silberg Center for Comparative Studies

    EIN 237304907 · Headquarters: Bayside, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Silly Goat Farm

    EIN 990410409 · Headquarters: Tomah, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Silver Birch Ranch Inc & Affiliate

    EIN 363076658 · Headquarters: WHITE LAKE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Silver Creek Riders Snowmobile Club

    EIN 237368841 · Headquarters: WATERTOWN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Silver Creek Sno-odders

    EIN 392043829 · Headquarters: Rosendale, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Silver Lake Cemetery Association % David Bain

    EIN 390615665 · Headquarters: PORTAGE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Silver Lake Protective Assoc

    EIN 396189101 · Headquarters: West Bend, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Silver Lake Rescue Squad Inc

    EIN 391603275 · Headquarters: Silver Lake, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

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