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. Opportunity Kicks

    EIN 270923167 · Headquarters: Moline, IL, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  2. Opportunity Knocks Incorporated

    EIN 264758403 · Headquarters: RIVER FOREST, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Opportunity Shredding

    EIN 922492873 · Headquarters: GURNEE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Opportunity Transformation Investments Inc

    EIN 364382506 · Headquarters: CHICAGO, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  5. Opposite Day Inc

    EIN 933831324 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Oprah's Angel Network

    EIN 364231488 · Headquarters: CHICAGO, IL, USA · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990

  7. Oprf Alliance Sc

    EIN 320387470 · Headquarters: OAK PARK, IL, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  8. Oprf High School Hockey Club

    EIN 474828218 · Headquarters: OAK PARK, IL, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Opsc Lodge Corp Oak Park Ski Club Lodge Corp Inc

    EIN 362803641 · Headquarters: Buffalo Grove, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Optical Society of Chicago

    EIN 821221666 · Headquarters: Des Plaines, IL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  11. Optical Valley Technology Inc

    EIN 352639290 · Headquarters: Chicago, IL, US · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Opticians Association of Illinois

    EIN 371224166 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  13. Optimal Care Services

    EIN 922763723 · Headquarters: FLOSSMOOR, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  14. Optimal Health and Prevention Research Foundation

    EIN 262515211 · Headquarters: DEERFIELD, IL, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  15. Optimist Club of Belleville Foundation

    EIN 811724159 · Headquarters: BELLEVILLE, IL, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Optimist Club of Belleville Inc

    EIN 376032267 · Headquarters: BELLEVILLE, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Optimist Club of Centralia Il

    EIN 370845119 · Headquarters: Carlyle, IL, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  18. Optimist Club of Deerfield

    EIN 363534194 · Headquarters: DEERFIELD, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Optimist Club of Des Plaines

    EIN 366083729 · Headquarters: DES PLAINES, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Optimist Club of Quincy

    EIN 376051477 · Headquarters: QUINCY, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Optimist International

    EIN 237010579 · Headquarters: Belleville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Optimist International

    EIN 237010599 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Optimist International

    EIN 237011768 · Headquarters: EAST DUBUQUE, IL, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  24. Optimist International

    EIN 237024903 · Headquarters: Belleville, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Optimist International

    EIN 237025543 · Headquarters: Washington, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  26. Optimist International

    EIN 237039883 · Headquarters: Pinckneyville, IL, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  27. Optimist International

    EIN 362121304 · Headquarters: Rock Island, IL, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Optimist International

    EIN 362652416 · Headquarters: MILAN, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  29. Optimist International

    EIN 362656463 · Headquarters: Princeton, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Optimist International

    EIN 363185374 · Headquarters: Mendota, IL, US · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  31. Optimist International

    EIN 363199926 · Headquarters: Sterling, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 363423147 · Headquarters: Niles, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Optimist International

    EIN 366089763 · Headquarters: East Moline, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Optimist International

    EIN 366132698 · Headquarters: Silvis, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  35. Optimist International

    EIN 366132786 · Headquarters: Glenview, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Optimist International

    EIN 370727711 · Headquarters: Columbia, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Optimist International

    EIN 370815049 · Headquarters: Havana, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Optimist International

    EIN 371117569 · Headquarters: Delavan, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Optimist International

    EIN 371156439 · Headquarters: Breese, IL, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  40. Optimist International

    EIN 371177843 · Headquarters: Chillicothe, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Optimist International

    EIN 371232627 · Headquarters: MILLSTADT, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Optimist International

    EIN 371239646 · Headquarters: Freeburg, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Optimist International

    EIN 371272052 · Headquarters: Greenville, IL, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  44. Optimist International

    EIN 371277655 · Headquarters: Nashville, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  45. Optimist International

    EIN 371280025 · Headquarters: WATERLOO, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  46. Optimist International

    EIN 371300983 · Headquarters: MARSHALL, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. Optimist International

    EIN 376034290 · Headquarters: Morton, IL, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  48. Optimist International

    EIN 376042266 · Headquarters: Peoria, IL, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  49. Optimist International

    EIN 376044981 · Headquarters: Decatur, IL, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  50. Optimist International

    EIN 376046684 · Headquarters: Quincy, IL, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Optimist International

    EIN 376048991 · Headquarters: Liverpool, IL, US · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  52. Optimist International

    EIN 376049054 · Headquarters: Urnama, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. Optimist International

    EIN 376054456 · Headquarters: Belleville, IL, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  54. Optimist International

    EIN 376062225 · Headquarters: Taylorville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Optimist International

    EIN 376080927 · Headquarters: Granite City, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Optimist International

    EIN 510212933 · Headquarters: Oswego, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Optimist International

    EIN 611428716 · Headquarters: Belleville, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Optimist International

    EIN 900280773 · Headquarters: moline, IL, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  59. Optimist International

    EIN 900334990 · Headquarters: Geneseo, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Optimist International

    EIN 911795759 · Headquarters: Valmeyer, IL, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Optimist International St David St David Optimist Club

    EIN 376045010 · Headquarters: ST DAVID, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Optimistic Springs Inc

    EIN 852650791 · Headquarters: Joliet, IL, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Optimum Wellness Center Incorporated

    EIN 815431259 · Headquarters: Waukegan, IL, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Optio Caritas Foundation

    EIN 825133034 · Headquarters: McHenry, IL, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  65. Option Mentoring Group

    EIN 300753583 · Headquarters: CHICAGO, IL, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. Options and Advocacy for Mchenry County Inc

    EIN 363948706 · Headquarters: Crystal Lake, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Options Center for Independent Living

    EIN 363667955 · Headquarters: Bourbonnais, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Options for Austin Foundation Corporation

    EIN 842945184 · Headquarters: Chicago, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  69. Options for College Success

    EIN 800454615 · Headquarters: CHICAGO, IL, USA · Education · Latest available filing year: 2022 · Primary form: IRS Form 990

  70. Options for Housing Inc

    EIN 363580405 · Headquarters: Chicago, IL, USA · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990

  71. Options for Literacy Inc

    EIN 463677591 · Headquarters: SOUTH HOLLAND, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Options for Youth

    EIN 201438278 · Headquarters: CHICAGO, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Optionsss Outreach Ministries Inc

    EIN 830491295 · Headquarters: SPRINGFIELD, IL, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. Optwell

    EIN 332618691 · Headquarters: Countryside, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Opus 16 Inc

    EIN 813252020 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Opus 327 Nfp

    EIN 464451659 · Headquarters: Evanston, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Opus 414 Society

    EIN 992805156 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Opus Choral Ensemble

    EIN 300852847 · Headquarters: Arlington Hts, IL, US · Arts, Culture & Humanities · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  79. Opus Dei Community Development Corp

    EIN 711022821 · Headquarters: CHICAGO, IL, US · Housing & Shelter · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Opus Montessori School Inc

    EIN 821003631 · Headquarters: Barrington Hills, IL, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Oquawka Toy Drive Inc

    EIN 872263625 · Headquarters: Oquawka, IL, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ora Foundation Inc

    EIN 871038030 · Headquarters: Cary, IL, US · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. Ora Higgins Youth Foundation

    EIN 363139775 · Headquarters: Chicago, IL, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  84. Ora T & Dessie H Lower Memorial Scholarship

    EIN 237311043 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  85. Oracle Productions an Illinois Nonprofit Corporation

    EIN 202013274 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  86. Oral and Maxillofacial Surgery Foundation

    EIN 366111168 · Headquarters: ROSEMONT, IL, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Oral Health America Americas Fund for Dental Health BK 20-04264

    EIN 362382334 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  88. Oral Implantology Institute

    EIN 842042329 · Headquarters: Oakbook, IL, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Orange Crush S a C

    EIN 030586916 · Headquarters: CHICAGO, IL, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. Orange Crush Softball

    EIN 872054886 · Headquarters: Sandwich, IL, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Orangeville Education Foundation

    EIN 043767461 · Headquarters: Orangeville, IL, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Orchard Beach Association Inc

    EIN 366116781 · Headquarters: McHenry, IL, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Orchard Ministry Development

    EIN 474320564 · Headquarters: Barrington, IL, United States · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Orchard Place Nonprofit Housing Corp

    EIN 453690894 · Headquarters: CHICAGO, IL, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Orchard Street Christian Church Child Day Care

    EIN 363774058 · Headquarters: OAK LAWN, IL, USA · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990

  96. Orchard Village

    EIN 362773481 · Headquarters: SKOKIE, IL, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Orchestra Ebenezer Ministry Inc

    EIN 364065413 · Headquarters: Chicago, IL, US · Arts, Culture & Humanities · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  98. Orchestra Parents Organization of Sterling Inc

    EIN 363028727 · Headquarters: Sterling, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  99. Orchestra Parents-patrons United Support

    EIN 364345704 · Headquarters: NAPERVILLE, IL, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Orchid 3Rd Union College Neighborhood Association Inc

    EIN 300391954 · Headquarters: Rockford, IL, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N

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