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. Strike Out Autism

    EIN 462553140 · Headquarters: Mosinee, WI, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. String Academy of Wi Inc

    EIN 391677309 · Headquarters: MILWAUKEE, WI, USA · Education · Latest available filing year: 2019 · Primary form: IRS Form 990

  3. String Systems Inc

    EIN 464548392 · Headquarters: MILWAUKEE, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Strings of Hope Foundation Incorporated

    EIN 205805345 · Headquarters: Neenah, WI, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  5. Stripes Foundation Inc

    EIN 873039455 · Headquarters: Deerfield, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. Stritch Family Literacy Center Inc

    EIN 934185408 · Headquarters: MILWAUKEE, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Striving to Improve Health for All

    EIN 862324472 · Headquarters: Cudahy, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Stroke Network of Wisconsin

    EIN 823611600 · Headquarters: Shorewood, WI, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. Strong Arm Helping Families Corp

    EIN 871292164 · Headquarters: Colfax, WI, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  10. Strong Links Inc

    EIN 481263213 · Headquarters: La Valle, WI, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Strong Native Minds the Next Chapter Inc

    EIN 873853503 · Headquarters: St Francis, WI, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Strong Start Inc

    EIN 393120386 · Headquarters: Sheboygan, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Strong Tower Fellowship

    EIN 861269080 · Headquarters: Waukesha, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Strongbodies of Tomahawk Incorporated

    EIN 924016856 · Headquarters: Tomahawk, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Strongheart Ministries Inc

    EIN 824157039 · Headquarters: Lake Tomahawk, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Stronghold Rescue & Relief

    EIN 832711117 · Headquarters: MENOMONEE FALLS, WI, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Structural Engineers Association of Wisconsin Inc

    EIN 264432156 · Headquarters: Menomonee Falls, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Strum Housing Inc

    EIN 237366787 · Headquarters: Eau Claire, WI, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Stryv365 Inc

    EIN 844055860 · Headquarters: MILWAUKEE, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Sts Cyril and Methodius Conference

    EIN 264651493 · Headquarters: Sheboygan, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  21. Stuart E Pease Memorial Scholarship Inc

    EIN 825057682 · Headquarters: DOUSMAN, WI, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. Student American Veterinary Medical Association Chapter at Uw-madison

    EIN 391484886 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Student Center Foundation

    EIN 396057046 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Student Exchange Between Cuba and America Inc

    EIN 391950268 · Headquarters: Madison, WI, US · International, Foreign Affairs & National Security · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  25. Student Gerontology Association

    EIN 394284772 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Student Personnel Association

    EIN 392022911 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  27. Student Pledge Inc

    EIN 205906430 · Headquarters: Edgar, WI, US · Crime & Legal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  28. Student Wisconsin Education Association Uw River Falls

    EIN 261407902 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Student Wisconsin Education Association-aurora University

    EIN 262726206 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Student Wisconsin Education Association-carthage College

    EIN 262709254 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Student Wisconsin Education Association-edgewood College

    EIN 262710664 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Student Wisconsin Education Association-st Norbert College

    EIN 262710129 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Student Wisconsin Education Association-uw Green Bay

    EIN 262709091 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Student Wisconsin Education Association-uw La Crosse

    EIN 262710269 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Student Wisconsin Education Association-uw Platteville

    EIN 262711324 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Student Wisconsin Education Association-uw Whitewater

    EIN 262708909 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Students & Leaders Net Incorporated

    EIN 261244214 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  38. Students for Accessibility Disability and Accommodation

    EIN 992430335 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Students Today Leaders Forever

    EIN 271287708 · Headquarters: La Crosse, WI, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  40. Students Today Leaders Forever

    EIN 271287786 · Headquarters: Madison, WI, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  41. Students Today Leaders Forever

    EIN 273525048 · Headquarters: River Falls, WI, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  42. Studio 84 Inc

    EIN 261647924 · Headquarters: Whitewater, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. Studio K Flamenco Inc

    EIN 822692011 · Headquarters: MILWAUKEE, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Studio One Booster Club Inc

    EIN 900895687 · Headquarters: Wales, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Studywisconsin Association Inc

    EIN 010876202 · Headquarters: Waukesha, WI, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  46. Stumpf Family Foundation Inc

    EIN 273757181 · Headquarters: APPLETON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  47. Sturgeon Bay Elementary Parent Teacher Organization

    EIN 923709235 · Headquarters: Sturgeon Bay, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Sturgeon Bay Girls Front Court Club

    EIN 392040365 · Headquarters: STURGEON BAY, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Sturgeon Bay High School Booster Club

    EIN 753147005 · Headquarters: Sturgeon Bay, WI, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. Sturgeon Bay Historical Society Foundation Inc

    EIN 814362375 · Headquarters: STURGEON BAY, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Sturgeon Bay Jaycees Inc

    EIN 391203786 · Headquarters: STURGEON BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  52. Sturgeon Bay Open Bass Tournament Inc

    EIN 391928078 · Headquarters: STURGEON BAY, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Sturgeon Bay Optimist Door County Founda

    EIN 391681008 · Headquarters: STURGEON BAY, WI, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Sturgeon Bay Rotary Club Charitable Trust

    EIN 396412894 · Headquarters: STURGEON BAY, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990

  55. Sturgeon Bay Sevastopol Wrestling Club Inc

    EIN 260397527 · Headquarters: Sturgeon Bay, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Sturgeon Bay Soccer Club Inc

    EIN 463343320 · Headquarters: Algoma, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sturgeon Bay Visitor & Convention Bureau Inc

    EIN 391801595 · Headquarters: STURGEON BAY, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Sturgeon Bay Yacht Club Inc

    EIN 390868594 · Headquarters: STURGEON BAY, WI, USA · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990

  59. Sturgeon Bay Youth Athletic Club Inc

    EIN 862413444 · Headquarters: STURGEON BAY, WI, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Sturgeon for Tomorrow Inc

    EIN 391318188 · Headquarters: CHILTON, WI, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Sturgeon Shuffle Inc

    EIN 844697763 · Headquarters: New London, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Sturm Humanitarian Foundation of Lions District 27-B2 Inc

    EIN 391720661 · Headquarters: Niagara, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Sturtevant Youth Baseball Assoc

    EIN 391504092 · Headquarters: RACINE, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Sua Foundation Inc

    EIN 432091973 · Headquarters: MADISON, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. Suamico Firefighters Volunteer Association Inc

    EIN 271577627 · Headquarters: Suamico, WI, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Sub-zero Group Foundation Inc C/o Sub-zero Group Inc

    EIN 391918462 · Headquarters: MADISON, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Suburban Athletic Club Incorporated

    EIN 391038413 · Headquarters: MILWAUKEE, WI, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  68. Suburban Athletics Inc

    EIN 391790069 · Headquarters: NEENAH, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Suburban Sno-hawks Inc

    EIN 237401474 · Headquarters: NEW BERLIN, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Suburban Womans Club of Wauwatosa

    EIN 396047174 · Headquarters: Milwaukee, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  71. Suburbs for Equality Inc

    EIN 852028120 · Headquarters: MENOMONEE FALLS, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Succeed Beyond High School

    EIN 842912366 · Headquarters: Kenosha, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Success Charleston Action

    EIN 994864427 · Headquarters: Hudson, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Success Unlimited

    EIN 472005335 · Headquarters: Hager City, WI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  75. Successful Aging Inc

    EIN 831500326 · Headquarters: Madison, WI, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Sudbrink Performance Academy Inc

    EIN 810914835 · Headquarters: Chilton, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Suddeutscher Volks-trachten Verein Doberlandler

    EIN 396060191 · Headquarters: Milwaukee, WI, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  78. Suder-pick Foundation Inc C/o Foley & Lardner Llp

    EIN 396048255 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  79. Sudix Foundation C/o Suzanne S Dixon

    EIN 363377946 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Sue Anne Gelatt Foundation C/o Trust Point Inc

    EIN 456497267 · Headquarters: LA CROSSE, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  81. Sue Baldwin Fund Inc

    EIN 462425010 · Headquarters: EGG HARBOR, WI, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Sue Peterson Breast Cancer Foundation

    EIN 470976961 · Headquarters: Auburndale, WI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  83. Sugar Camp Survivors Snowmobile Club Inc

    EIN 391175794 · Headquarters: Rhinelander, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Sugar Camp Youth Club

    EIN 800594059 · Headquarters: Rhinelander, WI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  85. Sugar Creek Pto Inc

    EIN 272488953 · Headquarters: VERONA, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Sugar Maple Nature School

    EIN 833126898 · Headquarters: SAUKVILLE, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Sugar Maple Parent Teacher Organization Inc

    EIN 844355660 · Headquarters: Saukville, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Sugar River Atv Club

    EIN 301400876 · Headquarters: Belleville, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Sugar River Bombers

    EIN 871821988 · Headquarters: NEW GLARUS, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  90. Sugar River Senior Center

    EIN 845003378 · Headquarters: BELLEVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Sugar River Soccer Club Inc

    EIN 933219790 · Headquarters: Belleville, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. Sugarbush Little League Inc

    EIN 822512383 · Headquarters: Luxemburg, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Suhr Family Mem Scholarship Fd

    EIN 810515266 · Headquarters: MILWAUKEE, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  94. Suicide Prevention Corp for Sw Wisc

    EIN 821514606 · Headquarters: MINERAL POINT, WI, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Sukhwal Charitable Foundation Inc

    EIN 391920410 · Headquarters: PLATTEVILLE, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Sukkat Shalom Institute Inc

    EIN 832021787 · Headquarters: Milwaukee, WI, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Sullivan Ems Ltd

    EIN 201350870 · Headquarters: SULLIVAN, WI, USA · Health Care · Latest available filing year: 2010 · Primary form: IRS Form 990

  98. Sullivans House Foundation INC

    EIN 332031484 · Headquarters: Wauwatosa, WI, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Sumac Trail Apartments Inc

    EIN 391915496 · Headquarters: Superior, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Summer Outdoor Adventure Club Inc

    EIN 391950657 · Headquarters: REEDSBURG, WI, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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