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. International Lutheran Laymens League

    EIN 366105160 · Headquarters: Hillside, IL, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  2. International Mercury Owners Accociation

    EIN 363799074 · Headquarters: NORTHBROOK, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. International Order of the Rainbow Girls

    EIN 237141146 · Headquarters: Freeport, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. International Order of the Rainbow Girls

    EIN 237141947 · Headquarters: Freeport, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. International Order of the Rainbow Girls

    EIN 237358981 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. International Order of the Rainbow Girls

    EIN 237506842 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. International Order of the Rainbow Girls

    EIN 237506846 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. International Order of the Rainbow Girls

    EIN 237506847 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. International Order of the Rainbow Girls

    EIN 237506851 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. International Order of the Rainbow Girls

    EIN 237506861 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. International Order of the Rainbow Girls

    EIN 237506877 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. International Order of the Rainbow Girls

    EIN 237506881 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. International Order of the Rainbow Girls

    EIN 237506889 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. International Order of the Rainbow Girls

    EIN 237506896 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. International Order of the Rainbow Girls

    EIN 237506910 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. International Order of the Rainbow Girls

    EIN 237506911 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. International Order of the Rainbow Girls

    EIN 237506916 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. International Order of the Rainbow Girls

    EIN 237506922 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. International Order of the Rainbow Girls

    EIN 237506933 · Headquarters: Hettick, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. International Order of the Rainbow Girls

    EIN 237507778 · Headquarters: Freeport, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. International Order of the Rainbow Girls

    EIN 300497865 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. International Order of the Rainbow Girls

    EIN 371348881 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. International Order of the Rainbow Girls Supreme Assembly

    EIN 454468727 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. International Order of the Rainbow Girls Supreme Assembly

    EIN 464176116 · Headquarters: QUINCY, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. International Organization of Good Templars Central States

    EIN 237531534 · Headquarters: West Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  26. International Organization of Good Templars Central States

    EIN 366083674 · Headquarters: Streator, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. International Organization of Good Templars Central States

    EIN 911816261 · Headquarters: Geneva, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. International Organization of Working Churches

    EIN 371564791 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  29. International Pentecostal Church of God

    EIN 363119972 · Headquarters: DES PLAINES, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  30. International Planetarium Society

    EIN 237218926 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  31. International Police Association United States Section

    EIN 237222351 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. International Police Association United States Section

    EIN 912155103 · Headquarters: EDWARDSVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. International Police Association United States Section Inc

    EIN 371111599 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. International Primatological Society

    EIN 910988977 · Headquarters: SKOKIE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. International Primitive Money Society

    EIN 934681434 · Headquarters: WINNETKA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. International Reprographic Association

    EIN 361263950 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. International Sanitary Supply Association

    EIN 362027076 · Headquarters: Rosemont, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. International Skeletal Society Endowment Fund

    EIN 220436815 · Headquarters: EAST DUNDEE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. International Skeletal Society Inc

    EIN 237366930 · Headquarters: EAST DUNDEE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. International Slurry Surfacing Association

    EIN 741509600 · Headquarters: GLEN ELLYN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. International Society for Experimental Hematology

    EIN 237282003 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. International Society for Heart & Lung Transplantation

    EIN 363142246 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. International Society for Holter and Noninvasive Electrocardiology

    EIN 161477014 · Headquarters: Chicago, IL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. International Society for Selenium Research

    EIN 464863102 · Headquarters: Edwardsville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. International Society for the Study of Self Injury

    EIN 275257279 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. International Society of Appraisers

    EIN 521860413 · Headquarters: Schaumburg, Illinois, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. International Society of Certified Employee Benefit Specialists Inc

    EIN 363475011 · Headquarters: Evanston, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. International Society of Gynecological Pathologists

    EIN 411329309 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. International Society of Hair Surgeons

    EIN 710738276 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. International Society of Psychoneuroendo Crinology Inc

    EIN 942902673 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. International Society of Transport Aircraft Trading

    EIN 521304567 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. International Sporthorse Registry

    EIN 363486548 · Headquarters: BURLINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. International Staple Nail and Tool Association

    EIN 952774099 · Headquarters: Schaumburg, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. International Swaminarayn Satsang Organation of Ch

    EIN 363246047 · Headquarters: Wheeling, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. International Trade Club of Chicago

    EIN 362081145 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. International Union IBEW Local 19

    EIN 364160443 · Headquarters: Aurora, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. International Union International Union UAW Local 2282

    EIN 363655838 · Headquarters: EAST MOLINE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. International Union of Allied Novelty & Production Workers Afl-cio

    EIN 131788877 · Headquarters: HILLSIDE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. International Union of Bricklayers and Allied Craftworkers Local 6

    EIN 363912731 · Headquarters: Peru, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  60. International Union of Bricklayers Local #8

    EIN 371316022 · Headquarters: OFALLON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. International Union of Elevator Constructors Local No 2

    EIN 361265720 · Headquarters: CHICAGO RIDGE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. International Union of Elevator Constructors Local Union 55

    EIN 376047612 · Headquarters: PEORIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. International Union of Materials Research Societies

    EIN 251629882 · Headquarters: Woodridge, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. International Union of Operating Engineers & Pipe Line Employers H&w Fund

    EIN 237134462 · Headquarters: OAK BROOK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. International Union of Operating Engineers Local #649

    EIN 370347805 · Headquarters: PEORIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. International Union of Operating Engineers Local 399 Health & Welfare Tru

    EIN 366198426 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. International Union of Operating Engineers Local No 399

    EIN 361265730 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. International Union of Operating Engineers Local Union No 965

    EIN 370347820 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. International Union of Operating Engineers N Central States Conference

    EIN 341263211 · Headquarters: COUNTRYSIDE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. International Union of Painters & A Llied Trades

    EIN 366127320 · Headquarters: DEER PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. International Union of Painters and Allied Trades

    EIN 060984314 · Headquarters: JACKSONVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. International Union of Painters and Allied Trades

    EIN 370192895 · Headquarters: East Alton, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. International Union of Painters and Allied Trades

    EIN 370192897 · Headquarters: SPRINGFIELD, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. International Union of Painters and Allied Trades

    EIN 370347655 · Headquarters: BELLEVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. International Union of Painters and Allied Trades

    EIN 370613832 · Headquarters: DECATUR, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. International Union of Painters and Allied Trades

    EIN 370798907 · Headquarters: DECATUR, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. International Union of Painters and Allied Trades - Local 521

    EIN 360843838 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. International Union of Painters and Allied Trades Glaziers Local 581

    EIN 362657039 · Headquarters: ROCK ISLAND, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  79. International Union of Painters and Allied Trades Local 154

    EIN 237070591 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. International Union of Painters and Allied Trades Local 157

    EIN 370192896 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. International Union of Painters and Allied Trades Local 27

    EIN 361135330 · Headquarters: LYONS, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. International Union of Painters and Allied Trades Local 273

    EIN 360822200 · Headquarters: PALOS HILLS, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. International Union of Painters and Allied Trades Local 448

    EIN 366110171 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. International Union of Painters and Allied Trades Local 465

    EIN 364418611 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. International Union of Painters and Allied Trades Local 467

    EIN 362160395 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. International Union of Painters and Allied Trades Local 607

    EIN 361593294 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. International Union of Painters and Allied Trades Local 97

    EIN 362423892 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. International Union of Uaw Local 579

    EIN 370606209 · Headquarters: DANVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. International Union UAW Local 1178

    EIN 362592104 · Headquarters: Naperville, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. International Union UAW Local 1414

    EIN 366153875 · Headquarters: East Moline, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. International Union UAW Local 2323

    EIN 363825242 · Headquarters: Peru, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. International Union UAW Local 2384

    EIN 371390634 · Headquarters: Mattoon, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. International Union UAW Local 3212

    EIN 412162899 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. International Union UAW LOCAL 434

    EIN 362270232 · Headquarters: East Moline, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  95. International Union UAW LOCAL 551

    EIN 361082223 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. International Union UAW Local 588

    EIN 362347405 · Headquarters: Chicago Heights, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. International Union UAW LOCAL 592

    EIN 362090509 · Headquarters: Rockford, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. International Union UAW Local 751

    EIN 370742358 · Headquarters: Decatur, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. International Union UAW LOCAL 79

    EIN 362731366 · Headquarters: East Moline, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. International Union UAW Local 803

    EIN 362034918 · Headquarters: Rockford, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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