Unknown & Unclassified nonprofits in Illinois

Unknown & Unclassified nonprofits in Illinois. Browse 25,013 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. The Waukegan Historical Society Inc

    EIN 237037876 · Headquarters: WAUKEGAN, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. The Wayne-dupage Hunt Inc

    EIN 366110020 · Headquarters: WAYNE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. The Weber W Sebald Foundation Xxxxx0008

    EIN 316020730 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  4. The Weezie Foundation Xxxxx0005

    EIN 136090903 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. The West Cook Young Men's Christian Associations Inc

    EIN 362179780 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. The Wheat Mission in Chicago

    EIN 364155121 · Headquarters: PALATINE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. The Wheatlands Wolves PTO

    EIN 812024382 · Headquarters: Aurora, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. The Whitney Foundation

    EIN 371312678 · Headquarters: ELMWOOD, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. The Wicker Park & Bucktown Chamber of Commerce

    EIN 363529504 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. The Wicklander Family Foundation

    EIN 366157637 · Headquarters: WESTERN SPRINGS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. The William B Pollock Company Foundation

    EIN 346514078 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. The William F O'connor Foundation C/o Ryan & Juraska Llp

    EIN 363593445 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  13. The William R Rich Foundation C/o Lynne Kaplan Trustee

    EIN 363885448 · Headquarters: ROSEMONT, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. The Wilmurt Club Inc

    EIN 131924502 · Headquarters: EVANSTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. The Witz Family Foundation

    EIN 366047700 · Headquarters: Oak Brook, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  16. The Wolf Pack Chicago Wolves Booster Club Inc

    EIN 363993042 · Headquarters: Aurora, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  17. The Woman's Club of Evanston

    EIN 361981230 · Headquarters: EVANSTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. The Womans Club of Fort Worth Trust Xxxxx1005

    EIN 756013828 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. The Woodbury Foundation

    EIN 363715828 · Headquarters: NORTHBROOK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. The Woodstock Soccer Project Nfp

    EIN 412622158 · Headquarters: Woodstock, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. The Worachek Family Foundation

    EIN 332484401 · Headquarters: HOMER GLEN, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  22. The World Medical Association Inc

    EIN 132566243 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  23. The YiSH

    EIN 874576974 · Headquarters: Newton, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  24. The Z Garland Ferguson and Content Bangs

    EIN 811385100 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  25. Theatiki FIfe & Drum Corps

    EIN 823463641 · Headquarters: Bourbonnais, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Theatre Classics

    EIN 363379672 · Headquarters: River Forest, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. Theatrical Stage Employees Union Local Two

    EIN 360906745 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Theatrical Wardrobe Union #769

    EIN 362524826 · Headquarters: Joliet, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Theo Sophia Charity

    EIN 824335641 · Headquarters: BLOOMINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. Theodore & Betsy Williamson Educational Trust

    EIN 476443459 · Headquarters: EAST PEORIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  31. Theodore & Mabel Thompson Trust Xxxxx3000

    EIN 846272577 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  32. Theodore J Krasnow Family Foundation

    EIN 363209669 · Headquarters: Lombard, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  33. Theodore W Meyers Charitable Trust

    EIN 886590601 · Headquarters: LAKE ZURICH, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Theosophical Society in America

    EIN 362167934 · Headquarters: WHEATON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Therapists in Education Union a Council of the Northwest

    EIN 364627684 · Headquarters: Palatine, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Theres More Ministries

    EIN 464222069 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Theresians International Inc

    EIN 263243394 · Headquarters: Elburn, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Theta Building Corporation of Sigma Kappa

    EIN 362934514 · Headquarters: MONTICELLO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Theta Chapter of Phi Sigma Sigma Inc

    EIN 370659519 · Headquarters: CHAMPAIGN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Theta Chi Delta Iota Alumni Corporation Nfp

    EIN 201025712 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  41. Theta Chi Fraternity Zeta Psi Chapter

    EIN 473744995 · Headquarters: MACOMB, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  42. Theta Lambda Zeta Zeta Phi Beta

    EIN 510207399 · Headquarters: CHAMPAIGN, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Theta Xi Fraternity

    EIN 370667685 · Headquarters: Champaign, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  44. Theta Xi Fraternity

    EIN 376075227 · Headquarters: PEORIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Theta Xi Fraternity Alpha Beta Assn

    EIN 370667850 · Headquarters: NAPERVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  46. Thi-8 Inc

    EIN 363783910 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Thinkamazing Inc

    EIN 851418038 · Headquarters: Aurora, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Thinkwell Makerspace Innovations

    EIN 921558026 · Headquarters: DECATUR, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Third City Studio Nfp

    EIN 883461697 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Third District Illinois Federation of Womens Clubs

    EIN 366096018 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Third Place Database

    EIN 393256316 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. This Funds NFP

    EIN 412734756 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Thistle Brae Farm

    EIN 393909563 · Headquarters: Fox River Grove, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Thomas & Marilyn Heath Charitable Trust

    EIN 366848625 · Headquarters: DEERFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  55. Thomas a Demetrio Foundation

    EIN 363441424 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  56. Thomas a Jennings Det Marine Corps League

    EIN 371162087 · Headquarters: Oblong, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Thomas Arkle Clark Chapter House Memoria

    EIN 376036053 · Headquarters: Champaign, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Thomas B Earle Foundation

    EIN 596784786 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Thomas E Hartung American Legion Post #1977

    EIN 363356283 · Headquarters: NEW LENOX, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Thomas Frazier Clark Foundation

    EIN 376036668 · Headquarters: Clinton, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Thomas H and Donna M Stone Foundation

    EIN 363485596 · Headquarters: VERNON HILLS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Thomas J and Mary Eyerman Foundation

    EIN 363157603 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  63. Thomas Kane Fbo Layman Tithing Fdn Xxxxx3005

    EIN 366011047 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Thomas Lyle Williams Trust Xxxxx4009

    EIN 366731140 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. Thomas Lyle Williams Trust Xxxxx5006

    EIN 366731141 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. Thomas M and Mary M Owens Foundation

    EIN 363429160 · Headquarters: PALOS HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Thomas W Dower Foundation

    EIN 366071665 · Headquarters: KENILWORTH, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. Thomasboro Improvement Association

    EIN 371219697 · Headquarters: Thomasboro, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  69. Thompson & Guilford Mutual Insurance Company

    EIN 366110284 · Headquarters: Scales Mound, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Thompson Alice R Fund Xxxxx3009

    EIN 226020461 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  71. Thompson Depot Museum

    EIN 363504270 · Headquarters: Thomson, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Thompson Lake Fishing Club

    EIN 370692171 · Headquarters: Carbondale, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Thomson Correctional Center Employees

    EIN 753224357 · Headquarters: Thomson, IL, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  74. Thomson Methodist Church Xxxxx3002

    EIN 556018252 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Thomson Youth Baseball

    EIN 363468374 · Headquarters: Thomson, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Thoracic Surgery Directors Association

    EIN 561196918 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Thorek Memorial Foundation

    EIN 366124318 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Thorn Creek Audubon Society Inc

    EIN 510149051 · Headquarters: Park Forest, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Thorn River Foundation

    EIN 366053821 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  80. Thorncamp Inc

    EIN 366112817 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Thorngate Country Club

    EIN 362196316 · Headquarters: MUNDELEIN, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  82. Thorns and Thistles

    EIN 933039726 · Headquarters: Lexington, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Thornton Lions-gaming Nfp

    EIN 863272943 · Headquarters: steger, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Thornton Professional Firefighters

    EIN 331861792 · Headquarters: Thornton, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Thotcon Nfp

    EIN 271176027 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990

  86. Thousand Stars Foundation

    EIN 884197372 · Headquarters: Pekin, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  87. Three Canopies Foundation Inc

    EIN 871031587 · Headquarters: Wheaton, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  88. Three Cat Productions

    EIN 272976902 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  89. Three Headed Eagle Alliance Inc

    EIN 851448913 · Headquarters: Geneva, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Three Hierarchs Orthodox Christian High School

    EIN 921794983 · Headquarters: NILES, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Three Rivers Association of Realtors Inc

    EIN 362812883 · Headquarters: JOLIET, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Three Rivers Construction Alliance

    EIN 363746354 · Headquarters: JOLIET, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Three Rivers Festival Foundation INC NFP

    EIN 842269138 · Headquarters: Channahon, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Three Rivers Home Educators

    EIN 842857414 · Headquarters: Minooka, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Three Rivers Yacht Club Inc

    EIN 362692296 · Headquarters: BRAIDWOOD, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Three Sisters Daughters

    EIN 262415718 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  97. Three Spinners Inc Nfp

    EIN 811102361 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  98. Threshold Learning Nonprofit Corporation

    EIN 993174721 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Thresholds

    EIN 362518901 · Headquarters: Chicago, IL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Thresholds in Education Foundation

    EIN 237406565 · Headquarters: DEKALB, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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