Nonprofits in Illinois

Nonprofits in Illinois. Browse 87,324 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 Organization of Good Templars Central States

    EIN 237531541 · Headquarters: Geneva, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  2. International Organization of Good Templars Central States

    EIN 237531542 · Headquarters: LaGrange Park, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  3. 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

  4. International Organization of Good Templars Central States

    EIN 366110237 · Headquarters: Wheaton, IL, US · Recreation & Sports · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  5. 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

  6. International Organization of Working Churches

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

  7. International Orthodox Theological Association

    EIN 815192527 · Headquarters: CHICAGO, IL, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. International Pain and Spine Intervention Society Inc

    EIN 943160988 · Headquarters: HINSDALE, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. International Partners for Ethical Care Inc

    EIN 853752787 · Headquarters: CHICAGO, IL, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. International Pat- Got Association

    EIN 364477590 · Headquarters: Chicago, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  11. International Pension Conference

    EIN 814845968 · Headquarters: Chicago, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. 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

  13. International Phytotechnology Society

    EIN 262795894 · Headquarters: Oswego, IL, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. International Pickelball Teaching Professional Association

    EIN 811360296 · Headquarters: RIVERWOODS, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. International Planetarium Society

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

  16. 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

  17. 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

  18. 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

  19. International Polka Association

    EIN 237009529 · Headquarters: CHICAGO, IL, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. International Prep Academy PTA

    EIN 474759062 · Headquarters: Champaign, IL, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. International Press Club of Chicago Inc

    EIN 363803421 · Headquarters: RIVER FOREST, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. International Primatological Society

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

  23. International Primitive Money Society

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

  24. International Private Equity Fund-I Series

    EIN 852948917 · Headquarters: Glenview, IL, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  25. International Private Real Estate Fund-I Series

    EIN 852960601 · Headquarters: Glenview, IL, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  26. International Ramayana Institute of North America

    EIN 364349798 · Headquarters: Woodridge, IL, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. International Reading Association Inc South Suburan Reading Council

    EIN 421342528 · Headquarters: Lansing, IL, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. International Real Property Foundation

    EIN 363818522 · Headquarters: CHICAGO, IL, USA · International, Foreign Affairs & National Security · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  29. International Reapers Foundation Inc

    EIN 366146866 · Headquarters: Rockford, IL, US · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  30. International Refugee and Immigrants Community Services Nfp

    EIN 900959435 · Headquarters: LINCOLNWOOD, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. International Relief Work Association

    EIN 364429846 · Headquarters: GLENVIEW, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  32. International Renegade Pigs Motorcycle Club Inc

    EIN 454632872 · Headquarters: Geneseo, IL, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  33. International Reprographic Association

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

  34. International Reprographic Education Foundation

    EIN 363354463 · Headquarters: Chicago, IL, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  35. International Resource Institute of Socio-economics Irise

    EIN 822286651 · Headquarters: Harvey, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. International Roundnet Federation

    EIN 851938727 · Headquarters: Chicago, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. International Sae Consortium Ltd

    EIN 260464459 · Headquarters: CHICAGO, IL, USA · Medical Research · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  38. International Safety Council

    EIN 363840397 · Headquarters: ITASCA, IL, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. International Sanitary Supply Association

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

  40. International Scholarship Foundatio N

    EIN 934306957 · Headquarters: CHICAGO, IL, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. International Science and Education Exchange Association

    EIN 270821054 · Headquarters: CHICAGO, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. International Ship Masters Association

    EIN 237584758 · Headquarters: Chicago, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  43. International Shipmasters Association - Chicago Lodge No 3

    EIN 472923732 · Headquarters: CHICAGO, IL, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. International Skeletal Society Endowment Fund

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

  45. International Skeletal Society Inc

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

  46. International Slurry Surfacing Association

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

  47. International Society for Cutaneous Lymphomas

    EIN 320244704 · Headquarters: Elgin, IL, USA · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. International Society for Endomicroscopy

    EIN 813549606 · Headquarters: Downers Grove, IL, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. International Society for Experimental Hematology

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

  50. International Society for Heart & Lung Transplantation

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

  51. 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

  52. International Society for Laboratory Hematology

    EIN 270662044 · Headquarters: Glenview, IL, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. International Society for Selenium Research

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

  54. International Society for Stem Cell Rese

    EIN 364491158 · Headquarters: EVANSTON, IL, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. International Society for the Advancement of Spine Surgery Inc

    EIN 134177240 · Headquarters: WHEATON, IL, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. 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

  57. International Society of Absolute Enpowerment

    EIN 371591674 · Headquarters: chicago, IL, US · Human Services · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  58. International Society of Appraisers

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

  59. International Society of Bone Morphometry Inc

    EIN 611281418 · Headquarters: Chicago, IL, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. International Society of Cane Collectors

    EIN 461562206 · Headquarters: WINNETKA, IL, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  61. 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

  62. International Society of Cosmetic Laser Surgeons Inc

    EIN 330505696 · Headquarters: Chicago, IL, US · Medical Research · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  63. International Society of Gynecological Pathologists

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

  64. International Society of Hair Surgeons

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

  65. International Society of Inflammation and Allergy of the No

    EIN 994778088 · Headquarters: CHICAGO, IL, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. International Society of Precison Agriculture

    EIN 900720883 · Headquarters: Monticello, IL, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. 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

  68. International Society of Sons and Daughters of Slave Ancestry

    EIN 364132277 · Headquarters: CHICAGO, IL, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. International Society of Surgery Us Chapter

    EIN 363092021 · Headquarters: Chicago, IL, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. International Society of Transport Aircraft Trading

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

  71. International Society of Transport Aircraft Trading Foundation

    EIN 541742507 · Headquarters: CHICAGO, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. International Society of Weighing & Measurement Inc

    EIN 202540138 · Headquarters: Danville, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. International Society of Weighing & Measurement Inc

    EIN 202577167 · Headquarters: Danville, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. International Society of Weighing & Measurement Inc

    EIN 362581291 · Headquarters: Danville, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. International Special Education Services Inc

    EIN 161472055 · Headquarters: Chicago, IL, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. International Special Events Society

    EIN 263665576 · Headquarters: Chicago, IL, US · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  77. International Special Events Society

    EIN 352256044 · Headquarters: Chicago, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  78. International Sporthorse Registry

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

  79. International Sports Ministries Inc

    EIN 363807878 · Headquarters: WHEATON, IL, USA · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990

  80. International Staple Nail and Tool Association

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

  81. International Star League

    EIN 462076107 · Headquarters: CHICAGO, IL, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  82. International Stevenson Foundation Inc

    EIN 270065207 · Headquarters: Chicago, IL, US · Crime & Legal Related · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  83. International Strategy and Policy Institute

    EIN 363961012 · Headquarters: OAK BROOK, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. International Street Dog Foundation Inc

    EIN 452247368 · Headquarters: WADSWORTH, IL, US · Animal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. International Students Educational Initiative Corp

    EIN 884156592 · Headquarters: Chicago, IL, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. International Sunday School

    EIN 900142567 · Headquarters: Chicago, IL, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. International Surgical Sleep Society Inc

    EIN 261347179 · Headquarters: EAST DUNDEE, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. International Swaminarayan Mission

    EIN 030485727 · Headquarters: Bloomingdale, IL, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. International Swaminarayn Satsang Organation of Ch

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

  90. International Tibetan Independence Movement

    EIN 351935813 · Headquarters: CHICAGO, IL, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. International Trade Association of Greater Chicago

    EIN 363017446 · Headquarters: CHICAGO, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  92. International Trade Club of Chicago

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

  93. International Training in Communication

    EIN 710888536 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  94. International Transplant Nurses Society

    EIN 465677635 · Headquarters: Chicago, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. International Transplant Nurses Society Inc

    EIN 201589538 · Headquarters: Chicago, IL, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990

  96. International Union East Moline UAW Building

    EIN 362389872 · Headquarters: EAST MOLINE, IL, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. International Union IBEW Local 19

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

  98. 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

  99. 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

  100. International Union of Bricklayers and Allied Craftworkers

    EIN 360838230 · Headquarters: Elmhurst, IL, US · Employment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

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