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. Wisconsin Society of Addiction Medicine

    EIN 391806177 · Headquarters: Kimberly, WI, United States · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Wisconsin Society of Anesthesiologists Inc

    EIN 391087656 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Wisconsin Society of Architects Chapters The American Institute of Architects

    EIN 800862126 · Headquarters: Madison, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990

  4. Wisconsin Society of Architects in Dba Aia Wisconsin

    EIN 390919117 · Headquarters: MADISON, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Wisconsin Society of Cytology Inc State Laboratory of Hygiene

    EIN 391265167 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Wisconsin Society of Emergency Services Instructors Inc

    EIN 391549239 · Headquarters: Wausau, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Wisconsin Society of Healthcare Human Resource Administrators

    EIN 300440020 · Headquarters: Kimberly, WI, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Wisconsin Society of Interventional Pain Physicians Inc

    EIN 820562781 · Headquarters: MEQUON, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Wisconsin Society of Land Surveyors

    EIN 391761516 · Headquarters: Rhinelander, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Wisconsin Society of Land Surveyors

    EIN 510141794 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Wisconsin Society of Oral and Maxillofacial Surgeons Inc

    EIN 391410118 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Wisconsin Society of Orthodontists

    EIN 396076428 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Wisconsin Society of Orthotists Prosthetists and Pedorthists Inc

    EIN 204525172 · Headquarters: GREEN BAY, WI, US · Employment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Wisconsin Society of Otolaryngology Head and Neck Surgery

    EIN 113649873 · Headquarters: Waterloo, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Wisconsin Society of Parenteral and Enteral Nutrition Wispen

    EIN 391557210 · Headquarters: MIDDLETON, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Wisconsin Society of Pathologists Inc

    EIN 396091735 · Headquarters: Kimberly, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Wisconsin Society of Plastic Surgeons Inc

    EIN 204470800 · Headquarters: Kimberly, WI, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Wisconsin Society of Professional Engineers

    EIN 390768362 · Headquarters: PEWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Wisconsin Society of Professional Engineers Fox River Valley Chapter

    EIN 271376204 · Headquarters: Green Bay, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Wisconsin Society of Professional Engineers South East Chapter

    EIN 352455246 · Headquarters: KENOSHA, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. Wisconsin Society of Professional Engineers Southwest Chapter

    EIN 611693126 · Headquarters: Baraboo, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  22. Wisconsin Society of Professional Engineers Western Chapter

    EIN 010935653 · Headquarters: La Crosse, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Wisconsin Society of Professional Engineers Wi Valley Chapter

    EIN 371702177 · Headquarters: Wausau, WI, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Wisconsin Society of Professional Engineers-northwest Chapter

    EIN 943490873 · Headquarters: Chippewa Falls, WI, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Wisconsin Society of Professional Soil Scientists

    EIN 237236711 · Headquarters: Juneau WI, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Wisconsin Society of Science Teachers

    EIN 237086868 · Headquarters: Cambridge, WI, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Wisconsin Society Perianesthesia Nurses

    EIN 273992566 · Headquarters: Madison, WI, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Wisconsin Sociological Association

    EIN 396077236 · Headquarters: Monona, WI, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Wisconsin Softball Historical Society Inc

    EIN 920735964 · Headquarters: Fredonia, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Wisconsin Solar Energy Industries Association Inc

    EIN 272818735 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. Wisconsin Sonrise Via De Cristo

    EIN 452983563 · Headquarters: Beloit, WI, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Wisconsin Southeastern Division Inc Nmra

    EIN 237325537 · Headquarters: WAUKESHA, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Wisconsin Soybean Association Inc

    EIN 237293364 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Wisconsin Soybean Marketing Board Inc

    EIN 391471066 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Wisconsin Special Response Team a Inc

    EIN 260800444 · Headquarters: Mukwonago, WI, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  36. Wisconsin Specialty Cheese Institute

    EIN 391606333 · Headquarters: Monroe, WI, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  37. Wisconsin Specialty Vehicle Alliance Inc

    EIN 842486526 · Headquarters: WALES, WI, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Wisconsin Speech-language-hearing Association Foundation Inc

    EIN 391989138 · Headquarters: PEWAUKEE, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Wisconsin Speed Skating Association Inc

    EIN 161701979 · Headquarters: Waukesha, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Wisconsin Speed Skating Club Inc

    EIN 391415357 · Headquarters: MENOMONEE FLS, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Wisconsin Speleological Society Inc

    EIN 237449699 · Headquarters: PR DU SAC, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Wisconsin Sport Aikido Club

    EIN 333477327 · Headquarters: West Allis, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Wisconsin Sport Truck Association

    EIN 460482851 · Headquarters: Appleton, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Wisconsin Sporting Alliance Advocacy Inc

    EIN 852896399 · Headquarters: Sullivan, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Wisconsin Sporting Alliance Foundation Inc

    EIN 863694699 · Headquarters: Sullivan, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Wisconsin Sporting Clays Association Inc

    EIN 203748462 · Headquarters: Milwaukee, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Wisconsin Sports & Events Inc

    EIN 934902501 · Headquarters: GREEN BAY, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Wisconsin Sports Collectors Association Ltd

    EIN 391679977 · Headquarters: Milwaukee, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Wisconsin Sports Development Corporation

    EIN 391476965 · Headquarters: MADISON, WI, USA · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990

  50. Wisconsin Sports Foundation Inc

    EIN 391981246 · Headquarters: MADISON, WI, USA · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990

  51. Wisconsin Sportsmans Association Inc

    EIN 396073636 · Headquarters: Sturtevant, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Wisconsin Staff Physician Recruiter

    EIN 261327809 · Headquarters: Madison, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. Wisconsin Startup Coalition Inc

    EIN 852874182 · Headquarters: Madison, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Wisconsin State Afl-cio

    EIN 390941964 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Wisconsin State and Local Tax

    EIN 392461898 · Headquarters: MILWAUKEE, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Wisconsin State Assembly of Ast

    EIN 391990141 · Headquarters: Antigo, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Wisconsin State Association of Life Underwriter

    EIN 237296693 · Headquarters: Brookfield, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  58. Wisconsin State Association of Life Underwriters

    EIN 237296697 · Headquarters: Delavan, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  59. Wisconsin State Association of Life Underwriters

    EIN 391438789 · Headquarters: Kewaskum, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  60. Wisconsin State Association of Life Underwriters

    EIN 510228564 · Headquarters: Spencer, WI, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  61. Wisconsin State Association of Life Underwriters

    EIN 510228602 · Headquarters: Baraboo, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  62. Wisconsin State Association of Life Underwriters

    EIN 510228604 · Headquarters: Potosi, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  63. Wisconsin State Association of Occupational Health Nurses Inc

    EIN 391664535 · Headquarters: Reedsburg, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Wisconsin State Attorneys Association

    EIN 237335089 · Headquarters: Glendale, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Wisconsin State Branch Number 956 of the National Association Of

    EIN 275417616 · Headquarters: GREEN BAY, WI, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Wisconsin State Button Society

    EIN 391952484 · Headquarters: Madison, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Wisconsin State Conference of the International Brotherhood Of

    EIN 396077457 · Headquarters: Madison, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  68. Wisconsin State Council Knights of Columbus

    EIN 237142803 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Wisconsin State Council of Afscme County and Municipal Local Unions #40 Afl-cio

    EIN 390772356 · Headquarters: MADISON, WI, USA · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990

  70. Wisconsin State Council of Emergency Nurses Assn

    EIN 363310060 · Headquarters: New Berlin, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Wisconsin State County and Municipal Employees Union Building Corporation

    EIN 391256651 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Wisconsin State Cow Chip Committee Inc

    EIN 611927032 · Headquarters: Prairie du Sac, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Wisconsin State Cranberry Growers Association

    EIN 391275145 · Headquarters: Wisconsin Rapids, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. Wisconsin State Crime Stoppers Inc

    EIN 391673909 · Headquarters: Sheboygan, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Wisconsin State Dental Society Relief Fund

    EIN 396085103 · Headquarters: WEST ALLIS, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  76. Wisconsin State Employees Resources

    EIN 814457049 · Headquarters: Madison, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  77. Wisconsin State Fair Dairy Promotion Fund Inc

    EIN 391583019 · Headquarters: MAYVILLE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Wisconsin State Fair Park Foundation

    EIN 391840248 · Headquarters: Milwaukee, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Wisconsin State Fire Chiefs Association

    EIN 237189906 · Headquarters: Milwaukee, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Wisconsin State Fire Inspectors

    EIN 900036883 · Headquarters: MENOMONEE FALLS, WI, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Wisconsin State Firefighter's Association Inc

    EIN 396127039 · Headquarters: MAZOMANIE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Wisconsin State Genealogical Society Inc

    EIN 396063792 · Headquarters: MADISON, WI, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  83. Wisconsin State Golf Association Foundation Inc

    EIN 204026810 · Headquarters: WEST ALLIS, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Wisconsin State Golf Association Inc

    EIN 391092159 · Headquarters: WEST ALLIS, WI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  85. Wisconsin State Horse Council Equine Foundation Inc

    EIN 752991941 · Headquarters: Columbus, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Wisconsin State Horse Council Inc

    EIN 391347729 · Headquarters: Columbus, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Wisconsin State Implementation Committee Inc

    EIN 391913795 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Wisconsin State Journal Youth Services Inc

    EIN 396051817 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Wisconsin State Lodge Fraternal Ord

    EIN 330999789 · Headquarters: WEST BEND, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Wisconsin State Old Cemetery Society Inc

    EIN 237167715 · Headquarters: Mequon, WI, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  91. Wisconsin State Patrol Alumni Association Inc

    EIN 453041058 · Headquarters: SUN PRAIRIE, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Wisconsin State Public Defender Association Local 4822

    EIN 391743973 · Headquarters: Milwaukee, WI, US · Employment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Wisconsin State Reading Association

    EIN 200403819 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Wisconsin State Reading Association

    EIN 237019134 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Wisconsin State Reading Association

    EIN 237025339 · Headquarters: Plover, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Wisconsin State Reading Association

    EIN 237045583 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Wisconsin State Reading Association

    EIN 237056327 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Wisconsin State Reading Association

    EIN 237057531 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Wisconsin State Reading Association

    EIN 237091655 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Wisconsin State Reading Association

    EIN 237419605 · Headquarters: Tomahawk, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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