Nonprofits in Ohio

Nonprofits in Ohio. Browse 89,326 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. Optimist Club of Fairfield Oh

    EIN 316061438 · Headquarters: FAIRFIELD, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. Optimist Fund of Brunswick

    EIN 463192172 · Headquarters: Streetsboro, OH, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Optimist International

    EIN 010599871 · Headquarters: Monroe, OH, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  4. Optimist International

    EIN 237010502 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Optimist International

    EIN 237032818 · Headquarters: Windsor, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Optimist International

    EIN 237120326 · Headquarters: Kettering, OH, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  7. Optimist International

    EIN 237396559 · Headquarters: Dayton, OH, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  8. Optimist International

    EIN 237402393 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Optimist International

    EIN 237424599 · Headquarters: Strongsville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Optimist International

    EIN 237455484 · Headquarters: Delphos, OH, US · Youth Development · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  11. Optimist International

    EIN 237455503 · Headquarters: Piqua, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Optimist International

    EIN 300117196 · Headquarters: Springboro, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  13. Optimist International

    EIN 300941315 · Headquarters: Bellbrook, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Optimist International

    EIN 310946675 · Headquarters: Waynesville, OH, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  15. Optimist International

    EIN 311002607 · Headquarters: WILMINGTON, OH, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  16. Optimist International

    EIN 311068746 · Headquarters: Fairborn, OH, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  17. Optimist International

    EIN 311068747 · Headquarters: Worthington, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  18. Optimist International

    EIN 311094466 · Headquarters: Tipp City, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Optimist International

    EIN 311146046 · Headquarters: Covington, OH, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  20. Optimist International

    EIN 311250941 · Headquarters: New Carlisle, OH, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  21. Optimist International

    EIN 311255115 · Headquarters: Centerville, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Optimist International

    EIN 311276263 · Headquarters: Kettering, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Optimist International

    EIN 311343939 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  24. Optimist International

    EIN 311475925 · Headquarters: Centerville, OH, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  25. Optimist International

    EIN 316038147 · Headquarters: DAYTON, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  26. Optimist International

    EIN 316042936 · Headquarters: Enon, OH, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  27. Optimist International

    EIN 316049344 · Headquarters: Pickerington, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  28. Optimist International

    EIN 316050644 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Optimist International

    EIN 316051730 · Headquarters: Hamilton, OH, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  30. Optimist International

    EIN 316056312 · Headquarters: Brookville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Optimist International

    EIN 316059845 · Headquarters: Kettering, OH, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 316060850 · Headquarters: Englewood, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  33. Optimist International

    EIN 316061444 · Headquarters: Huber Heights, OH, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Optimist International

    EIN 316085053 · Headquarters: Centerville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Optimist International

    EIN 316085054 · Headquarters: Eaton, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. Optimist International

    EIN 341254670 · Headquarters: Lima, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Optimist International

    EIN 341300120 · Headquarters: Canton, OH, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  38. Optimist International

    EIN 341328740 · Headquarters: Wapakoneta, OH, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  39. Optimist International

    EIN 341468379 · Headquarters: Ridgeway, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Optimist International

    EIN 341479229 · Headquarters: Masury, OH, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  41. Optimist International

    EIN 341479925 · Headquarters: Fairlawn, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Optimist International

    EIN 341490913 · Headquarters: St Marys, OH, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  43. Optimist International

    EIN 341587617 · Headquarters: Tiffin, OH, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  44. Optimist International

    EIN 341658645 · Headquarters: McDonald, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Optimist International

    EIN 341700308 · Headquarters: Streetsboro, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Optimist International

    EIN 341746893 · Headquarters: Fostoria, OH, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  47. Optimist International

    EIN 346539162 · Headquarters: Burghill, OH, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  48. Optimist International

    EIN 346543313 · Headquarters: Lima, OH, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  49. Optimist International

    EIN 346555600 · Headquarters: MANSFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Optimist International

    EIN 346555681 · Headquarters: LIMA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Optimist International

    EIN 346557319 · Headquarters: sagamore hills, OH, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  52. Optimist International

    EIN 346558030 · Headquarters: Hubbard, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  53. Optimist International

    EIN 346569680 · Headquarters: Conneaut, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Optimist International

    EIN 346570835 · Headquarters: Findlay, OH, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  55. Optimist International

    EIN 346575327 · Headquarters: Canfield, OH, US · Youth Development · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Optimist International

    EIN 346610011 · Headquarters: Hubbard, OH, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  57. Optimist International

    EIN 346610980 · Headquarters: Stow, OH, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  58. Optimist International

    EIN 363989553 · Headquarters: Elida, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  59. Optimist International

    EIN 510173542 · Headquarters: Wilberforce, OH, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  60. Optimist International

    EIN 510184423 · Headquarters: Mason, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Optimist International

    EIN 510184498 · Headquarters: Ostrander, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Optimist International

    EIN 510212967 · Headquarters: New Middletown, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Optimist International

    EIN 900143670 · Headquarters: Fairfield, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  64. Optimist International

    EIN 900257650 · Headquarters: Fremont, OH, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  65. Optimist International

    EIN 900518897 · Headquarters: New Concord, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  66. Optimist International

    EIN 900531336 · Headquarters: DAYTON, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  67. Optimist International

    EIN 900549353 · Headquarters: Dayton, OH, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  68. Optimist International

    EIN 900595944 · Headquarters: Dayton, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  69. Optimist International

    EIN 900622064 · Headquarters: Xenia, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  70. Optimist International

    EIN 900765321 · Headquarters: Aurora, OH, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  71. Optimist International

    EIN 900841480 · Headquarters: Miamisburg, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  72. Optimist International

    EIN 900894362 · Headquarters: Wilberforce, OH, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  73. Optimist International

    EIN 901032772 · Headquarters: Beavercreek, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Optimist International

    EIN 912161806 · Headquarters: Newton Falls, OH, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  75. Optimist International

    EIN 933583986 · Headquarters: Springfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Optimist International 24274 Optimist Club of Napoleon Oh

    EIN 237289021 · Headquarters: NAPOLEON, OH, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  77. Optimist International 24313 Breakfast Oc of Putnam County

    EIN 341687665 · Headquarters: OTTAWA, OH, US · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Optimist International Club

    EIN 346608158 · Headquarters: CORTLAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Optimist International Optimist Club of Van Wert Ohio Club 24391

    EIN 341328741 · Headquarters: VAN WERT, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  80. Optimist International Riverdale Optimist Club of Dayton O

    EIN 316061441 · Headquarters: DAYTON, OH, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. Optimist International-centerville Ohio Noon

    EIN 316083734 · Headquarters: Dayton, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  82. Optimist Scholarship Foundation of Delphos Ohio Inc

    EIN 331001359 · Headquarters: Delphos, OH, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Option Plus Social Services Pantry

    EIN 853117219 · Headquarters: cincinnati, OH, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Options for Families and Youth

    EIN 341632683 · Headquarters: STRONGSVILLE, OH, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990

  85. Optometric Educators Inc

    EIN 310873508 · Headquarters: Dublin, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Optometric Refractive Surgery Society Inc

    EIN 311548542 · Headquarters: BRECKSVILLE, OH, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Or & W Firemans Association

    EIN 341427673 · Headquarters: Shadyside, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Oralmaxfax Podcast

    EIN 873485467 · Headquarters: cincinnati, OH, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. Orange & Black Athletic Boosters of Perry County Inc

    EIN 311751205 · Headquarters: NEW LEXINGTON, OH, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Orange Alumni Association

    EIN 341588079 · Headquarters: Pepper Pike, OH, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  91. Orange Area Service Committee

    EIN 237404780 · Headquarters: PEPPER PIKE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Orange Barrel Production Company

    EIN 261745857 · Headquarters: Marengo, OH, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Orange Baseball Association

    EIN 461071853 · Headquarters: Lewis Center, OH, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Orange Community Arts Council

    EIN 341019726 · Headquarters: PEPPER PIKE, OH, USA · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  95. Orange Crush Football Booster

    EIN 341565772 · Headquarters: NORTH CANTON, OH, USA · Recreation & Sports · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  96. Orange Fusion Travel Baseball

    EIN 814545249 · Headquarters: Lewis Center, OH, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  97. Orange Hearts for Makenzi

    EIN 871824844 · Headquarters: Brice, OH, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Orange Historical Society

    EIN 341239412 · Headquarters: chagrin falls, OH, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  99. Orange Music Patronaires

    EIN 237065691 · Headquarters: Pepper Pike, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Orange School Employees Credit Union

    EIN 340927136 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

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