Nonprofits in Oshkosh, Wisconsin

Nonprofits in Oshkosh, Wisconsin. Browse 486 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. 11 65-71 Rvn Reunion

    EIN 223863187 · Headquarters: Oshkosh, WI, US · Public & Societal Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  2. 117 Central Wisconsin Chapter of Trout Unlimited

    EIN 237184511 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. 1960-Ohs-class Reunion

    EIN 411822525 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. 4-H Clubs & Affiliated 4-H Organizations

    EIN 391477820 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  5. 4-H Clubs & Affiliated 4-H Organizations

    EIN 391477822 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  6. 4-H Clubs & Affiliated 4-H Organizations

    EIN 391477855 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  7. 4-H Clubs & Affiliated 4-H Organizations

    EIN 391479425 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  8. 4-H Clubs & Affiliated 4-H Organizations

    EIN 391976436 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  9. 4-H Clubs & Affiliated 4-H Organizations

    EIN 432067996 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  10. 4-H Clubs & Affiliated 4-H Organizations

    EIN 611640763 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  11. 4-H Clubs and Affiliated 4-H Organizations

    EIN 383852148 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  12. 8Th Day Project Inc

    EIN 473240170 · Headquarters: Oshkosh, WI, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  13. Acton Academy Oshkosh

    EIN 844508001 · Headquarters: OSHKOSH, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Altrusa International Foundation Inc

    EIN 391917508 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Altrusa International Inc

    EIN 396075467 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Amateur Athletic Union of the United States

    EIN 412261842 · Headquarters: OSHKOSH, WI, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  17. Amatuer Athletic Union of the United States Inc

    EIN 452641242 · Headquarters: OSHKOSH, WI, USA · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  18. Amcor Supplemental Unemployment Benefit Plan

    EIN 901132029 · Headquarters: OSHKOSH, WI, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. American Association of University Women

    EIN 396074103 · Headquarters: OShkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Black Belt Academy Inc

    EIN 391798913 · Headquarters: OSHKOSH, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. American Federation of Labor & Congress of Industrial Orgs

    EIN 396077544 · Headquarters: Oshkosh, WI, US · Employment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. American Federation of State County & Municipal Employees

    EIN 396095617 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. American Federation of State County & Municipal Employees

    EIN 800163572 · Headquarters: OSHKOSH, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  24. American Federation of State County & Municipal Employees

    EIN 830512229 · Headquarters: Oshkosh, WI, US · Employment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  25. American Legion Auxiliary

    EIN 396052367 · Headquarters: OSHKOSH, WI, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  26. American Legion Cook Fuller Post 70

    EIN 390223935 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  27. American Postal Workers Union

    EIN 396077503 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Production and Inventory Control Society Fox Valley Chapter

    EIN 391307690 · Headquarters: Oshkosh, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Amvet

    EIN 396069409 · Headquarters: Oshkosh, WI, US · Public & Societal Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  30. Amvets

    EIN 237054247 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Amvets

    EIN 386069409 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Ardent Lives Inc

    EIN 863474464 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  33. Artspace Collective Inc

    EIN 300227877 · Headquarters: Oshkosh, WI, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Badger State Youth Basketball Foundation Inc

    EIN 475086910 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  35. Bago Tracks and Trails Limited

    EIN 844945112 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Battle on Bago Foundation Inc

    EIN 461039141 · Headquarters: OSHKOSH, WI, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Bayview Terrace Inc

    EIN 237368831 · Headquarters: OSHKOSH, WI, USA · Housing & Shelter · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  38. Bemis Company Foundation

    EIN 416038616 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  39. Benevolent & Protective Order of Elks 292

    EIN 390159890 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Beta Alpha Psi National Council

    EIN 911964432 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Beta Theta Pi Fraternity

    EIN 311410315 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  42. Bethel Home Inc

    EIN 391209707 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Bethesda Cemetery Association

    EIN 270277153 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Board of Regents of the University of Wisconsin System

    EIN 300622923 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Board of Regents of the University of Wisconsin System

    EIN 371621075 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  46. Board of Regents of the University of Wisconsin System

    EIN 371652408 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Board of Regents of the University of Wisconsin System

    EIN 384027009 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. Board of Regents of the University of Wisconsin System

    EIN 384058941 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Board of Regents of the University of Wisconsin System

    EIN 391401935 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Board of Regents of the University of Wisconsin System

    EIN 391470238 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  51. Board of Regents of the University of Wisconsin System

    EIN 391470303 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Board of Regents of the University of Wisconsin System

    EIN 391471497 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  53. Board of Regents of the University of Wisconsin System

    EIN 391477840 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  54. Board of Regents of the University of Wisconsin System

    EIN 391477841 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Board of Regents of the University of Wisconsin System

    EIN 391477883 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Board of Regents of the University of Wisconsin System

    EIN 391478322 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Board of Regents of the University of Wisconsin System

    EIN 391543344 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Board of Regents of the University of Wisconsin System

    EIN 391602441 · Headquarters: Oshkosh, WI, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  59. Board of Regents of the University of Wisconsin System

    EIN 391650467 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  60. Board of Regents of the University of Wisconsin System

    EIN 391975763 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Board of Regents of the University of Wisconsin System

    EIN 391988680 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. Board of Regents of the University of Wisconsin System

    EIN 412079961 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Board of Regents of the University of Wisconsin System

    EIN 473932029 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Board of Regents of the University of Wisconsin System

    EIN 562585456 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Board of Regents of the University of Wisconsin System

    EIN 611682387 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  66. Board of Regents of the University of Wisconsin System

    EIN 611742180 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Board of Regents of the University of Wisconsin System

    EIN 680680574 · Headquarters: Oshkosh, WI, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  68. Board of Regents of the University of Wisconsin System

    EIN 861121507 · Headquarters: OSHKOSH, WI, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. BOARD OF REGENTS OF THE UNIVERSITY OF Wisconsin SYSTEM Winnebago County 4-H Leaders Association

    EIN 396101443 · Headquarters: OSHKOSH, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Boy Scouts Pack 3622

    EIN 474224089 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  71. Boys & Girls Club Endowment Fund

    EIN 391597119 · Headquarters: OSHKOSH, WI, USA · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990

  72. Boys & Girls Club of Oshkosh Inc

    EIN 396120658 · Headquarters: OSHKOSH, WI, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Brandan Kalmerton Foundation Inc

    EIN 452068330 · Headquarters: OSHKOSH, WI, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Burning Hearts Disciples

    EIN 471836633 · Headquarters: Oshkosh, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Business Partners in Success

    EIN 320416098 · Headquarters: Oshkosh, WI, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  76. Business Success Center Inc

    EIN 391943791 · Headquarters: OSHKOSH, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  77. Calvary Mission Center Inc 90 S Macy St

    EIN 391618400 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  78. Capstone Consultng Inc

    EIN 882541219 · Headquarters: OSHKOSH, WI, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  79. Carl Traeger Psg Carl Traeger Elementary School

    EIN 391912920 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Carmel Residence Inc

    EIN 391448325 · Headquarters: OSHKOSH, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Catholic Order of Foresters

    EIN 237581356 · Headquarters: Oshkosh, WI, US · Mutual & Membership Benefit · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Cesa 6

    EIN 391045907 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Chamco Inc

    EIN 396067918 · Headquarters: OSHKOSH, WI, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990

  84. Cherith International Inc

    EIN 204798662 · Headquarters: OSHKOSH, WI, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Child Care Resource and Referral of Winnebago County Inc

    EIN 391697457 · Headquarters: Oshkosh, WI, US · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  86. Christian Community Child Center Inc

    EIN 392039202 · Headquarters: Oshkosh, WI, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Christine Ann Domestic Abuse Services Inc

    EIN 391441770 · Headquarters: OSHKOSH, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Collaborative Wellness Inc

    EIN 334854052 · Headquarters: Oshkosh, WI, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Community for Hope of Greater

    EIN 421532927 · Headquarters: OSHKOSH, WI, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Community Theater Group of Oshkosh Incorporated

    EIN 260500850 · Headquarters: Oshkosh, WI, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  91. Covey Inc

    EIN 396026845 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Cumberland Court Housing Commission Inc

    EIN 391759242 · Headquarters: OSHKOSH, WI, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Damascus Road Project Inc

    EIN 813061105 · Headquarters: Oshkosh, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. David B Tyriver Memorial Foundation Inc

    EIN 391649868 · Headquarters: Oshkosh, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Dawn Tanner Memorial Inc

    EIN 204244950 · Headquarters: Oshkosh, WI, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  96. Day by Day Shelter Inc

    EIN 275557420 · Headquarters: OSHKOSH, WI, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Delta Chi Fraternity

    EIN 464023769 · Headquarters: OSHKOSH, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Delta Sigma Phi Fraternity Inc

    EIN 396095411 · Headquarters: Oshkosh, WI, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  99. Delta Sigma Phi Fraternity Inc

    EIN 900404058 · Headquarters: OSHKOSH, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Dime Ministries Inc

    EIN 823408329 · Headquarters: Oshkosh, WI, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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