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. American Association of Physicians of Indian Origin

    EIN 382532505 · Headquarters: OAK BROOK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. American Association of Police Polygraphists

    EIN 840892388 · Headquarters: WILMETTE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. American Association of Psychiatric Pharmacists Uic College Chapter

    EIN 832882383 · Headquarters: WESTCHESTER, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Association of Sexuality Educators Counselors & Therapists

    EIN 520895683 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. American Association of Sleep Technologi

    EIN 391601311 · Headquarters: Darien, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. American Association of Zoo Keepers

    EIN 208293044 · Headquarters: Decatur, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. American Association of Zoo Keepers

    EIN 363726921 · Headquarters: Brookfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Association of Zoo Keepers

    EIN 363726922 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Association of Zoo Keepers

    EIN 831047219 · Headquarters: Wheaton, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Association of Zoo Keepers

    EIN 843469152 · Headquarters: Coal Valley, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  11. American Athletic Club of Chicago

    EIN 366472040 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  12. American Austin Bantam Club

    EIN 161589448 · Headquarters: Oswego, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Bar Association

    EIN 360723150 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. American Biological Safety Assn

    EIN 742480319 · Headquarters: MUNDELEIN, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. American Black and Tan Association Inc

    EIN 731193515 · Headquarters: WINCHESTER, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. American Blind Bowlers Association Inc

    EIN 363553272 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. American Blind Skiing Foundation

    EIN 237291117 · Headquarters: Cary, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. American Board for Occupational Health Nurses Inc

    EIN 136567779 · Headquarters: PALOS HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. American Board of Certification for Gastroenterology Nurses Inc

    EIN 391514984 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. American Board of Cosmetic Surgery Inc

    EIN 232625922 · Headquarters: CRETE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. American Board of Dental Sleep Medicine

    EIN 262615612 · Headquarters: LISLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. American Board of Endodontics

    EIN 236408246 · Headquarters: BUFFALO GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. American Board of Genetic Counseling Inc

    EIN 521820420 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. American Board of Homeopathic Medicine

    EIN 431957245 · Headquarters: BLOOMINGDALE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. American Board of Medical Specialties

    EIN 410847713 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. American Board of Neuroscience Nursing

    EIN 351428888 · Headquarters: Schaumburg, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. American Board of Oral and Maxillofacial Surgery

    EIN 420859627 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Board of Oral Implantology/implant Dentistry

    EIN 237017438 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. American Board of Pain Medicine

    EIN 363846839 · Headquarters: ARLINGTON HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. American Board of Preventive Medicine

    EIN 236298444 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. American Board of Psychiatry and Neurology

    EIN 410654864 · Headquarters: Deerfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. American Board of Thoracic Surgery

    EIN 364111028 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. American Brain Tumor Association

    EIN 237286648 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. American Brittany Club

    EIN 731372113 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. American Brittany Club Inc

    EIN 236489393 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. American Brittany Club Inc

    EIN 237346554 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. American Brittany Club Inc

    EIN 237362457 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. American Brittany Club Inc

    EIN 237363487 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. American Brittany Club Inc

    EIN 237364052 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. American Brittany Club Inc

    EIN 237366140 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. American Brittany Club Inc

    EIN 237367108 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. American Brittany Club Inc

    EIN 237369320 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. American Brittany Club Inc

    EIN 237370386 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. American Brittany Club Inc

    EIN 237402144 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. American Brittany Club Inc

    EIN 300485804 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. American Brittany Club Inc

    EIN 376046471 · Headquarters: carterville, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. American Brittany Club Inc

    EIN 411582650 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  48. American Brittany Club Inc

    EIN 416164995 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. American Brittany Club Inc

    EIN 476086741 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. American Brittany Club Inc

    EIN 800506520 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. American Brittany Club Inc

    EIN 876161418 · Headquarters: lake zurich, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  52. American Bullmastiff Association Inc

    EIN 581533973 · Headquarters: LINDENHURST, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  53. American Business Club of Jacksonville Illinois Inc

    EIN 237034040 · Headquarters: Jacksonville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Business Womens Association

    EIN 376040282 · Headquarters: Quincy, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Business Womens Association Sinnissippi Chapter

    EIN 510160034 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  56. American Catholic Press

    EIN 362755136 · Headquarters: SOUTH HOLLAND, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. American Chamber Opera Inc

    EIN 371656548 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  58. American Chemical Society

    EIN 237282955 · Headquarters: Quincy, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Chemical Society

    EIN 237284207 · Headquarters: Mount Pulaski, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Chemical Society

    EIN 237377292 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Chemical Society

    EIN 363157672 · Headquarters: Plainfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Chemical Society

    EIN 376045542 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Chemical Society

    EIN 376058278 · Headquarters: Carbondale, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Chemical Society

    EIN 436049918 · Headquarters: Elsah, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. American Chemical Society

    EIN 510227769 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Chemical Society History of Chemistry Div U of Il

    EIN 526055746 · Headquarters: URBANA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. American Civil Liberties Union of Illinois

    EIN 271629328 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. American Civil Rights Organization

    EIN 383941262 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  69. American College of Allergy Asthma & Immunology Inc

    EIN 840457367 · Headquarters: ARLINGTON HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. American College of Dentists Inc

    EIN 521384696 · Headquarters: Elk Grove Village, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American College of Healthcare Executive

    EIN 352255339 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American College of Healthcare Executives

    EIN 364574638 · Headquarters: Groveland, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American College of Healthcare Executives

    EIN 611472308 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. American College of Legal Medicine Inc

    EIN 362552873 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. American College of Medical Quality

    EIN 237318735 · Headquarters: WARRENVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. American College of Osteopathic Emergency Physicia

    EIN 341175666 · Headquarters: WARRENVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. American College of Osteopathic Family P

    EIN 363341154 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. American College of Physicians Il Chapter

    EIN 510222984 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. American College of Prosthodontists Education Foundation

    EIN 232363597 · Headquarters: ROSEMONT, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. American College of Surgeons Michigan Chapter

    EIN 237182541 · Headquarters: BATAVIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. American College of Surgeons Ntx

    EIN 751923987 · Headquarters: BATAVIA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. American Concrete Institute

    EIN 364060931 · Headquarters: ELMHURST, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. American Concrete Pavement Association

    EIN 362548294 · Headquarters: ROSEMONT, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. American Conference of Cantors

    EIN 132666627 · Headquarters: Schaumburg, IL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. American Contract Bridge League District 8

    EIN 376151675 · Headquarters: CHAMPAIGN, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Contract Compliance Association

    EIN 222806882 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. American Council of Engineering Companies of Illinois

    EIN 376046296 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. American Criminal Justice Association Lambda Alpha Epsilon

    EIN 205126666 · Headquarters: Orland Park, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. American Cuesports Alliance

    EIN 472945216 · Headquarters: HICKORY HILLS, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. American Dairy Products Institute

    EIN 360721770 · Headquarters: Elmhurst, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. American Dairy Science Association Inc

    EIN 131808371 · Headquarters: CHAMPAIGN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. American Dance Center Ballet

    EIN 362861949 · Headquarters: OLYMPIA FIELDS, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Daughters of Sweden

    EIN 366081909 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American Dental Association

    EIN 360724690 · Headquarters: Chicago, IL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. American Dental Hygienists' Association

    EIN 362372371 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. American Dental Society of Anestesiology Research Foundation

    EIN 166071126 · Headquarters: chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. American Education Foundation Inc

    EIN 272963214 · Headquarters: PLANO, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Endodontic Society

    EIN 237025267 · Headquarters: GLEN ELLYN, IL, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  99. American Equilibration Society

    EIN 237131699 · Headquarters: PARK RIDGE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. American Fed of St Co & Me Local 779

    EIN 376079314 · Headquarters: HARRISBURG, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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