Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Illinois Society of Professional Engineers

    EIN 237155487 · Headquarters: Bartlett, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  2. Illinois Society of Professional Engineers

    EIN 366205544 · Headquarters: Deerfield, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Illinois Society of Professional Engineers

    EIN 366205545 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Illinois Society of Professional Engineers

    EIN 366205546 · Headquarters: Dixon, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Illinois Society of Professional Engineers

    EIN 366205625 · Headquarters: Bradley, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Illinois Society of Professional Engineers

    EIN 366205824 · Headquarters: Decatur, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Illinois Society of Professional Engineers

    EIN 366205835 · Headquarters: ST Charles, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Illinois Society of Professional Engineers

    EIN 366205845 · Headquarters: Lake Forest, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Illinois Society of Professional Engineers

    EIN 371124750 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. Illinois Society of Professional Engineers

    EIN 371220301 · Headquarters: Urbana, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Illinois Society of Professional Engineers

    EIN 371224506 · Headquarters: Olney, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Illinois Society of Professional Engineers

    EIN 376082247 · Headquarters: Normal, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Illinois Society of Professional Engineers

    EIN 436098685 · Headquarters: Collinsville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Illinois Society of Professional Farm Managers & Rural Appraisers

    EIN 237089333 · Headquarters: Urbana, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Illinois Society of Proffesional Engineers

    EIN 371224517 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Illinois Society of the American Colonists

    EIN 202009611 · Headquarters: Downers Grove, IL, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  17. Illinois Soil Classifiers Association

    EIN 510204016 · Headquarters: Divernon, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Illinois Solar Education Association Inc

    EIN 363027007 · Headquarters: PALATINE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Illinois Solar Industry Association

    EIN 473379320 · Headquarters: Elk Grove Village, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Illinois Southdown Breeders Association

    EIN 820560444 · Headquarters: Jacksonville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Illinois Soybean Board

    EIN 376152654 · Headquarters: BLOOMINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Illinois Soybean Growers

    EIN 237024061 · Headquarters: BLOOMINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Illinois Specialty Growers Association

    EIN 371142742 · Headquarters: BLOOMINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Illinois Speech-language-hearing Assoc

    EIN 370954618 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Illinois Spina Bifida Association

    EIN 237062317 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Illinois State Academy of Science

    EIN 376043007 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Illinois State Administrators in Hematology Oncology

    EIN 364464262 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  28. Illinois State Alpha Tau Omega House Corporation

    EIN 371083248 · Headquarters: BLOOMINGTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Illinois State Ambulance Association

    EIN 363554966 · Headquarters: CANTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  30. Illinois State Assembly of Ast

    EIN 364439578 · Headquarters: PEORIA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Illinois State Assn of Wildlife Program

    EIN 900637506 · Headquarters: Florissant, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Illinois State Assn Scholarship Program

    EIN 800666012 · Headquarters: Addison, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Illinois State Association

    EIN 311733929 · Headquarters: Adrian, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Illinois State Bar Association

    EIN 370345303 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Illinois State Black Chamber of Commerce Inc

    EIN 364478202 · Headquarters: Peoria, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Illinois State Chapter of Womens Council of Realtors

    EIN 830412639 · Headquarters: Downers Grove, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Illinois State Conference of Ibew

    EIN 371362153 · Headquarters: ROCKFORD, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Illinois State Conference of OP & CM

    EIN 376038744 · Headquarters: TROY, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Illinois State Council Knights of Columbus

    EIN 361268095 · Headquarters: Kankakee, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Illinois State Council Knights of Columbus Charities Inc

    EIN 510194196 · Headquarters: Kankakee, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Illinois State Council of the Intrntl Union Operating Engineers

    EIN 371240764 · Headquarters: Marion, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Illinois State Credit Union

    EIN 370805312 · Headquarters: NORMAL, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Illinois State Crimestoppers Association

    EIN 363611689 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Illinois State Dental Society

    EIN 370682986 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Illinois State Employees Association/retirees

    EIN 371202338 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Illinois State Florists Association

    EIN 376040433 · Headquarters: Edwardsville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Illinois State Genealogical Society

    EIN 370911225 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Illinois State Grand Assembly Order of the Golden Circle

    EIN 844518046 · Headquarters: Matteson, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Illinois State Grange

    EIN 237590583 · Headquarters: Roscoe, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Illinois State Grange

    EIN 237590585 · Headquarters: Capron, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Illinois State Grange

    EIN 237590587 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Illinois State Grange

    EIN 237590591 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Illinois State Grange

    EIN 237590642 · Headquarters: New Athens, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Illinois State Grange

    EIN 237590644 · Headquarters: O Fallon, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Illinois State Grange

    EIN 237590645 · Headquarters: Waterloo, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Illinois State Grange

    EIN 237590646 · Headquarters: Mascoutah, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Illinois State Grange

    EIN 237590651 · Headquarters: Washington, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. Illinois State Grange

    EIN 237590658 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Illinois State Grange

    EIN 237590662 · Headquarters: Caledonia, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Illinois State Grange

    EIN 237590664 · Headquarters: ROCKFORD, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Illinois State Grange

    EIN 237590667 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  62. Illinois State Grange

    EIN 237590679 · Headquarters: Rockford, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Illinois State Grange

    EIN 237590681 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Illinois State Grange

    EIN 362193590 · Headquarters: O Fallon, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Illinois State Grange

    EIN 363913575 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Illinois State Grange

    EIN 371005574 · Headquarters: Lebanon, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Illinois State Grange 1370

    EIN 237590649 · Headquarters: Belleville, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Illinois State Grotto Association

    EIN 301446090 · Headquarters: Streamwood, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Illinois State Horticultural Society

    EIN 237420616 · Headquarters: Elmwood, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Illinois State Medical Society

    EIN 362436054 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Illinois State Music Teachers Association

    EIN 362846426 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Illinois State Painters Welfare Fund

    EIN 366053429 · Headquarters: SCHAUMBURG, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Illinois State Public Interest Research Group Inc

    EIN 363673399 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Illinois State Racquetball Association

    EIN 362941946 · Headquarters: Oswego, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Illinois State Rifle Association

    EIN 366161799 · Headquarters: CHATSWORTH, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  76. Illinois State Society of Radiologic Technologists

    EIN 370917639 · Headquarters: MARYVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Illinois State Society of the Acofp

    EIN 383667425 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Illinois State Trapshooters Association

    EIN 362892450 · Headquarters: METAMORA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Illinois State University Farmhouse Fraternity Association

    EIN 371142396 · Headquarters: CHAMPAIGN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Illinois State Veterinary Medical Association

    EIN 362064654 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Illinois States Attorneys Assoc Patrick Delfino

    EIN 362699800 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Illinois Stewardship Alliance

    EIN 376160476 · Headquarters: SPRINGFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Illinois Swimming Incorporated

    EIN 311012798 · Headquarters: EVANSTON, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Illinois Tactical Officers' Association Inc

    EIN 363624189 · Headquarters: HOMER GLEN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Illinois Taekwondo Nf

    EIN 392804116 · Headquarters: HANOVER PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Illinois Taekwondo State Association

    EIN 870762903 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  87. Illinois Tash

    EIN 473106079 · Headquarters: Normal, IL, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Illinois Technology Partnership Nfp

    EIN 364805958 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. Illinois Telecommunications Association Inc

    EIN 371126810 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Illinois Terminal Division Nfp

    EIN 844950408 · Headquarters: Urbana, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Illinois Thoroughbred Breeders and Owners Foundati

    EIN 371011054 · Headquarters: Lyons, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Illinois Tool Works Inc Voluntary Employees' Beneficiary Association

    EIN 363183297 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  93. Illinois Traction Society

    EIN 371211809 · Headquarters: Decatur, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Illinois Tractor Pulling Association

    EIN 371018689 · Headquarters: GREENUP, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Illinois Trial Lawyers Association

    EIN 370949429 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Illinois Trial Lawyers Education Fund

    EIN 371064396 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Illinois Trucking Association Inc

    EIN 360884130 · Headquarters: Joliet, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Illinois Turfgrass Foundation Inc

    EIN 376040434 · Headquarters: Lemont, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Illinois United Postmasters and Managers of America

    EIN 376047962 · Headquarters: PEKIN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Illinois Valley Amateur Radio Club

    EIN 333337327 · Headquarters: OBrien, OR, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

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