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. Lakkens Legacy Corporation

    EIN 994729983 · Headquarters: Stanley, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Lalumiere League

    EIN 390881888 · Headquarters: THREE LAKES, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Lamar Community Club Inc

    EIN 391982188 · Headquarters: SAINT CROIX FALLS, WI, USA · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  4. Lamartine Volunteer Fire Company

    EIN 391100920 · Headquarters: Oakfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Lambda Alliance for Civil Equality Inc

    EIN 800721362 · Headquarters: Milwaukee, WI, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  6. Lambda Chi Alpha Alumni Association Lambda Iota Zeta Llc

    EIN 412197183 · Headquarters: New Berlin, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Lambda Chi Alpha Fraternity Inc

    EIN 237135266 · Headquarters: New Berlin, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Lambda Chi Alpha Fraternity Inc

    EIN 814060482 · Headquarters: La Crosse, WI, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. Lambda Chi Fraternity Inc

    EIN 320442666 · Headquarters: Whitewater, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Lambda Kappa Sigma - Beta Epsilon

    EIN 332731035 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Lambda Kappa Sigma Alumni Association

    EIN 392238894 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Lambda Kappa Sigma Inaternational

    EIN 911970409 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Lambda Kappa Sigma International

    EIN 046156665 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Lambda Kappa Sigma International

    EIN 046156669 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Lambda Kappa Sigma International

    EIN 046156670 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Lambda Kappa Sigma International

    EIN 056020778 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Lambda Kappa Sigma International

    EIN 061309700 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Lambda Kappa Sigma International

    EIN 066090112 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Lambda Kappa Sigma International

    EIN 116083856 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Lambda Kappa Sigma International

    EIN 116083909 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Lambda Kappa Sigma International

    EIN 141745377 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Lambda Kappa Sigma International

    EIN 146038664 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Lambda Kappa Sigma International

    EIN 166076549 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Lambda Kappa Sigma International

    EIN 226092336 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Lambda Kappa Sigma International

    EIN 236429803 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. Lambda Kappa Sigma International

    EIN 236429804 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Lambda Kappa Sigma International

    EIN 236429805 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Lambda Kappa Sigma International

    EIN 237071600 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Lambda Kappa Sigma International

    EIN 237272140 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Lambda Kappa Sigma International

    EIN 237388923 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Lambda Kappa Sigma International

    EIN 256063733 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Lambda Kappa Sigma International

    EIN 256085650 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Lambda Kappa Sigma International

    EIN 256085651 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Lambda Kappa Sigma International

    EIN 263853686 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Lambda Kappa Sigma International

    EIN 263853739 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Lambda Kappa Sigma International

    EIN 300586378 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Lambda Kappa Sigma International

    EIN 300586379 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Lambda Kappa Sigma International

    EIN 336143289 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Lambda Kappa Sigma International

    EIN 346582558 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Lambda Kappa Sigma International

    EIN 356072255 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Lambda Kappa Sigma International

    EIN 356072256 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Lambda Kappa Sigma International

    EIN 366079201 · Headquarters: MUSKEGO, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Lambda Kappa Sigma International

    EIN 366164524 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Lambda Kappa Sigma International

    EIN 386143290 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Lambda Kappa Sigma International

    EIN 386143291 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Lambda Kappa Sigma International

    EIN 426091433 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Lambda Kappa Sigma International

    EIN 436072536 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Lambda Kappa Sigma International

    EIN 473307884 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Lambda Kappa Sigma International

    EIN 473455131 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Lambda Kappa Sigma International

    EIN 473460005 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Lambda Kappa Sigma International

    EIN 473473104 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Lambda Kappa Sigma International

    EIN 473519713 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Lambda Kappa Sigma International

    EIN 473537297 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. Lambda Kappa Sigma International

    EIN 526073661 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Lambda Kappa Sigma International

    EIN 526073662 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Lambda Kappa Sigma International

    EIN 556030137 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Lambda Kappa Sigma International

    EIN 586066234 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Lambda Kappa Sigma International

    EIN 616012970 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  59. Lambda Kappa Sigma International

    EIN 616042970 · Headquarters: Muskego, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  60. Lambda Kappa Sigma International

    EIN 811952595 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Lambda Kappa Sigma International

    EIN 900161814 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  62. Lambda Kappa Sigma International

    EIN 916072970 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Lambda Kappa Sigma International

    EIN 916072971 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Lambda Kappa Sigma International

    EIN 930799400 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Lambda Kappa Sigma International

    EIN 946135348 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Lambda Kappa Sigma International

    EIN 956156388 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Lambda Theta Alpha

    EIN 271301048 · Headquarters: Milwaukee, WI, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  68. Lambert Fndtn for Univ of Chicago

    EIN 900001601 · Headquarters: MILWAUKEE, WI, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. Lamboa Kappa Sigma International

    EIN 472361521 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Lamotte Lake Property Owners Association Inc

    EIN 412103378 · Headquarters: De Pere, WI, USA · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Lancaster Association of Churches Inc

    EIN 470936907 · Headquarters: LANCASTER, WI, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Lancaster Chamber of Commerce

    EIN 391213435 · Headquarters: LANCASTER, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. Lancaster Education Association

    EIN 262710748 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Lancaster Education Support Personnel

    EIN 371568533 · Headquarters: MADISON, WI, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  75. Lancaster Ems Inc

    EIN 391506051 · Headquarters: LANCASTER, WI, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Lancaster Ffa Alumni

    EIN 391391130 · Headquarters: Lancaster, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Lancaster Fire Department Fund Inc

    EIN 474032158 · Headquarters: LANCASTER, WI, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Lancaster Public Library Foundation Inc

    EIN 391421893 · Headquarters: LANCASTER, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Lancaster Scholarship Foundation Inc

    EIN 391838250 · Headquarters: Lancaster, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Lancaster Sport Boosters Inc

    EIN 391816007 · Headquarters: LANCASTER, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Lancaster Wrestling Club Inc

    EIN 884413617 · Headquarters: LANCASTER, WI, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Lancaster Youth Football Inc

    EIN 931430027 · Headquarters: Cassville, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Lance Middle School Pto

    EIN 383895182 · Headquarters: Kenosha, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  84. Lancer Youth Wrestling Club

    EIN 472484708 · Headquarters: Sun Prairie, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Land Conservation Association Inc

    EIN 333899896 · Headquarters: MADISON, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Land O Lakes Community Playground Inc

    EIN 871663921 · Headquarters: LAND O LAKES, WI, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Land O Lakes Employees Club Inc

    EIN 237076773 · Headquarters: Clear Lake, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Land O Lakes Fish & Game Club Inc

    EIN 391604410 · Headquarters: Land O Lakes, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Land O Lakes Historical Society Inc

    EIN 391791531 · Headquarters: Land O Lakes, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Land O Lakes-conover Pta

    EIN 391927498 · Headquarters: Land O Lakes, WI, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. Land O'lakes Chamber of Commerce

    EIN 391400406 · Headquarters: LAND O LAKES, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Land Olakes Recreation Association Inc

    EIN 930756316 · Headquarters: LAND O LAKES, WI, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  93. Land Sea and Air Outdoors Inc

    EIN 993641999 · Headquarters: Black River Falls, WI, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Land Trust Network of Jefferson County Inc

    EIN 043804693 · Headquarters: WATERTOWN, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Land Trust of Walworth County Inc

    EIN 392033898 · Headquarters: Elkhorn, WI, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  96. Landing Strip

    EIN 391093538 · Headquarters: Madison, WI, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Landings Laget of America Inc

    EIN 260053720 · Headquarters: Osseo, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Landmark Conservancy Inc

    EIN 391872550 · Headquarters: MENOMONIE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Landmark Credit Union

    EIN 390203995 · Headquarters: Brookfield, WI, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Landmark Referral Group Inc

    EIN 843992948 · Headquarters: SUN PRAIRIE, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

First page and all pages