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. National Exchange Club

    EIN 743146949 · Headquarters: JOLIET, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. National Exchange Club

    EIN 811650976 · Headquarters: Naperville, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  3. National Exchange Club

    EIN 882831256 · Headquarters: Warrenville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. National Exchange Club 1447 Quincy IL

    EIN 376038384 · Headquarters: Quincy, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  5. National Exchange Club Urbana IL

    EIN 376032152 · Headquarters: Urbana, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. National Federation of Municipal Analysts

    EIN 362929771 · Headquarters: Highland Park, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National Forum for Environmental and Toxic Tort Issues Inc

    EIN 474278762 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  8. National Foundation for Ectodermal Dysplasias

    EIN 371112496 · Headquarters: FAIRVIEW HEIGHTS, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. National Fraternity of Phi Gamma Nu

    EIN 341560415 · Headquarters: Champaign, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. National Fraternity of Phi Gamma Nu

    EIN 362372971 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. National Fraternity of Phi Gamma Nu

    EIN 465475869 · Headquarters: Normal, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. National Fraternity of Phi Gamma Nu

    EIN 472074842 · Headquarters: Buffalo Grove, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. National Futures Association

    EIN 362960981 · Headquarters: Chicago, IL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. National Garden Bureau

    EIN 521070693 · Headquarters: DOWNERS GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. National Guard Association of Illin

    EIN 370950079 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. National Gypsy Moth Management Board

    EIN 411685733 · Headquarters: Princeton, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. National Headache Foundation

    EIN 237073022 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. National Huguenot Society

    EIN 366135005 · Headquarters: Crystal Lake, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. National Institute of Pension Administrators

    EIN 953867553 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. National Insurance Crime Bureau

    EIN 363776789 · Headquarters: Oak Brook, IL, United States · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. National Introducing Brokers Association

    EIN 363782237 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. National Kidney Foundation of Illinois

    EIN 366009226 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. National Kitchen and Bath Association

    EIN 363771159 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. National League for Nursing

    EIN 471303064 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. National Marine Lenders Association

    EIN 311125373 · Headquarters: WILMETTE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Marine Representatives Assn

    EIN 363091270 · Headquarters: GURNEE, IL, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  27. National Modified Midget Assn

    EIN 856016635 · Headquarters: Atwood, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  28. National Non-profit Housing Corporation

    EIN 363719507 · Headquarters: Crystal Lake, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. National Opportunity Project Action Inc

    EIN 872207946 · Headquarters: CHICAGO, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. National Org of Alpha Sigma Kappa Women in Technical Studies

    EIN 833457831 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  31. National Organization for Women

    EIN 334962794 · Headquarters: Towanda, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. National Organization for Women Inc

    EIN 222583716 · Headquarters: Aurora, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  33. National Organization for Women Inc

    EIN 362777919 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. National Organization for Women Inc

    EIN 371069196 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. National Organization for Women Inc

    EIN 465339957 · Headquarters: PLAINFIELD, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Organization for Women Inc

    EIN 521240789 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Organization for Women Inc

    EIN 521240793 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Organization for Women Inc Northwest Suburban Now

    EIN 521240965 · Headquarters: Northbrook, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. National Organization of Black Law Enforcement Executives CHICAGO METRO CHA

    EIN 521497462 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. National Organization of Black Law Enforcement Executives-noble

    EIN 364341402 · Headquarters: AURORA, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Organization of Mothers of Twins Clubs Inc

    EIN 363792515 · Headquarters: BUFFALO GROVE, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  42. National Organization of Mothers of Twins Clubs Inc

    EIN 363999948 · Headquarters: PLAINFIELD, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  43. National Organization of Mothers of Twins Clubs Inc

    EIN 364443418 · Headquarters: ORLAND PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. National Organization of Mothers of Twins Clubs Inc

    EIN 453504030 · Headquarters: GLENVIEW, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  45. National Organization of Mothers of Twins Clubs Inc

    EIN 461000096 · Headquarters: NAPERVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Organization of Mothers of Twins Clubs Inc

    EIN 742570728 · Headquarters: ALGONQUIN, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  47. National Organization of Mothers of Twins Clubs Inc

    EIN 844240806 · Headquarters: ELGIN, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Organization of Mothers of Twins Clubs Inc

    EIN 900885470 · Headquarters: GURNEE, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Paper Trade Association

    EIN 131086900 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. National Printing Ink Research Institute Inc

    EIN 136123721 · Headquarters: ROCKFORD, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  51. National Production Workers Union

    EIN 363034387 · Headquarters: DOWNERS GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. National Public Employer Labor Relations Association

    EIN 237380090 · Headquarters: Vernon Hills, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. National Registry of Environmental Professionals

    EIN 363638863 · Headquarters: GLENVIEW, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. National Roofing Contractors Association

    EIN 362023984 · Headquarters: ITASCA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. National Roofing Legal Resource Center

    EIN 363003098 · Headquarters: Rosemont, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. National Rural Letter Carriers Asociation

    EIN 237235487 · Headquarters: KANKAKEE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. National Rural Letter Carriers Association

    EIN 237235452 · Headquarters: POCAHONTAS, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. National Rural Letter Carriers Association

    EIN 237235453 · Headquarters: WOODSTOCK, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. National Rural Letter Carriers Association

    EIN 237235458 · Headquarters: WELDON, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. National Rural Letter Carriers Association

    EIN 237235459 · Headquarters: Galena, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. National Rural Letter Carriers Association

    EIN 237235460 · Headquarters: OBLONG, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. National Rural Letter Carriers Association

    EIN 237235465 · Headquarters: TOLEDO, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. National Rural Letter Carriers Association

    EIN 237235466 · Headquarters: MORRIS, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. National Rural Letter Carriers Association

    EIN 237235470 · Headquarters: PARIS, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. National Rural Letter Carriers Association

    EIN 237235472 · Headquarters: WATSON, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. National Rural Letter Carriers Association

    EIN 237235474 · Headquarters: Thompsonville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. National Rural Letter Carriers Association

    EIN 237235476 · Headquarters: RIDGWAY, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. National Rural Letter Carriers Association

    EIN 237235478 · Headquarters: Galena, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  69. National Rural Letter Carriers Association

    EIN 237235480 · Headquarters: CISSNA PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. National Rural Letter Carriers Association

    EIN 237235482 · Headquarters: WEST LIBERTY, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. National Rural Letter Carriers Association

    EIN 237235484 · Headquarters: BRIGHTON, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. National Rural Letter Carriers Association

    EIN 237235485 · Headquarters: HANOVER, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. National Rural Letter Carriers Association

    EIN 237235486 · Headquarters: VIENNA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. National Rural Letter Carriers Association

    EIN 237235488 · Headquarters: SHERIDAN, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. National Rural Letter Carriers Association

    EIN 237235489 · Headquarters: GALESBURG, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. National Rural Letter Carriers Association

    EIN 237235490 · Headquarters: OGLESBY, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. National Rural Letter Carriers Association

    EIN 237235492 · Headquarters: Dwight, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Rural Letter Carriers Association

    EIN 237235494 · Headquarters: DECATUR, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. National Rural Letter Carriers Association

    EIN 237235495 · Headquarters: EDWARDSVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. National Rural Letter Carriers Association

    EIN 237235500 · Headquarters: BLOOMINGTON, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. National Rural Letter Carriers Association

    EIN 237235501 · Headquarters: NEW WINDSOR, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. National Rural Letter Carriers Association

    EIN 237235503 · Headquarters: HILLSBORO, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. National Rural Letter Carriers Association

    EIN 237235507 · Headquarters: PRINCEVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. National Rural Letter Carriers Association

    EIN 237235508 · Headquarters: DU QUOIN, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. National Rural Letter Carriers Association

    EIN 237235509 · Headquarters: BEMENT, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. National Rural Letter Carriers Association

    EIN 237235513 · Headquarters: GENESEO, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. National Rural Letter Carriers Association

    EIN 237235514 · Headquarters: COLUMBIA, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. National Rural Letter Carriers Association

    EIN 237235515 · Headquarters: HARRISBURG, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. National Rural Letter Carriers Association

    EIN 237235517 · Headquarters: FINDLAY, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. National Rural Letter Carriers Association

    EIN 237235521 · Headquarters: DANVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. National Rural Letter Carriers Association

    EIN 237235523 · Headquarters: Galena, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. National Rural Letter Carriers Association

    EIN 237235524 · Headquarters: NORRIS CITY, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. National Rural Letter Carriers Association

    EIN 237235528 · Headquarters: JOLIET, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. National Rural Letter Carriers Association

    EIN 237235529 · Headquarters: MACHESNEY PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. National Rural Letter Carriers Association

    EIN 237309682 · Headquarters: MILLEDGEVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. National Rural Letter Carriers Association

    EIN 263673779 · Headquarters: PRINCETON, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. National Rural Letter Carriers Association

    EIN 263673831 · Headquarters: WEST SALEM, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. National Rural Letter Carriers Association

    EIN 510168469 · Headquarters: SPRINGFIELD, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. National Rural Letter Carriers' Association

    EIN 237235449 · Headquarters: GALENA, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  100. National Sculpture Society Tr Xxxxx1008

    EIN 136702761 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

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