Unknown & Unclassified nonprofits in Ohio

Unknown & Unclassified nonprofits in Ohio. Browse 26,579 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. Ohio Federation of Mothers of Twins Clubs Inc

    EIN 346582683 · Headquarters: TIFFIN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Ohio Federation of Mothers of Twins Clubs Inc

    EIN 346582695 · Headquarters: Rootstown, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Ohio Federation of Music Clubs Fndn for the Advancement of Music

    EIN 311226019 · Headquarters: ASHLAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. Ohio Federation of Republican Women

    EIN 316049333 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Ohio Federation of Soil & Water Conservation Districts

    EIN 341377997 · Headquarters: REYNOLDSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Ohio Federation of Teachers

    EIN 314269484 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Ohio Feeder Calf Roundup Inc

    EIN 311207853 · Headquarters: ZANESVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Ohio Fellowship of Christian Magicians

    EIN 262631166 · Headquarters: Newark, OH, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  9. Ohio Feminist Art Museum

    EIN 990859599 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Ohio Festivals & Events Association Attn Kelly Spriggssecretary/treas

    EIN 311079390 · Headquarters: ASHVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Ohio Ffa Camps Inc

    EIN 316035993 · Headquarters: CARROLLTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Ohio Ffa Foundation Inc

    EIN 316050849 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  13. Ohio Field Trailers Association

    EIN 310971370 · Headquarters: Jeffersonville, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. Ohio Financial Services Association

    EIN 314268615 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Ohio Findlay Korean School

    EIN 261346597 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  16. Ohio Fire Chiefs' Association Inc

    EIN 310888822 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  17. Ohio First Fund Inc

    EIN 820906766 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  18. Ohio First Responders Foundation

    EIN 872460526 · Headquarters: CLARKSVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Ohio Fiserv User Group

    EIN 844043545 · Headquarters: WHITEHALL, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  20. Ohio Flyers Hanggliding and Paragliding Assoc

    EIN 462409531 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  21. Ohio Forensic Centers Consortium

    EIN 883857217 · Headquarters: Hamilton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Ohio Foundation of Chiropractic

    EIN 272593887 · Headquarters: Hilliard, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  23. Ohio Foundation Quarter Horse Association

    EIN 743170800 · Headquarters: Austintown, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. Ohio Foundation Seeds Inc

    EIN 314270380 · Headquarters: CROTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Ohio Fraternal Alliance

    EIN 364678577 · Headquarters: Lorain, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Ohio Funeral Directors Association

    EIN 314272225 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Ohio Funeral Directors Association 4Th District

    EIN 320348062 · Headquarters: P O Box, OH, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  28. Ohio G Club

    EIN 465637036 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  29. Ohio Gamma Alumni Corp of Sigma Phi Epsilon Fraternity

    EIN 311353035 · Headquarters: BLACKLICK, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Ohio Gamma Chapter of Phi Delta Theta International Fraternity

    EIN 311011619 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Ohio Gas Association

    EIN 237363814 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Ohio Genealogical Society

    EIN 311620765 · Headquarters: Marysville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Ohio Genealogical Society

    EIN 341369960 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Ohio Genealogical Society

    EIN 341370520 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Ohio Genealogical Society

    EIN 341382141 · Headquarters: Elyria, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Ohio Genealogical Society- Fairfield County Chapter

    EIN 311003260 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Ohio Golf Association

    EIN 311080373 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Ohio Golf Course Superindendents Association Inc

    EIN 311512537 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Ohio Gourd Society Inc

    EIN 311162545 · Headquarters: CENTERBURG, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Ohio Government Finance Officers Association

    EIN 311229036 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Ohio Green Industry Association

    EIN 310648233 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Ohio Gridiron Youth Football Association

    EIN 453775399 · Headquarters: Mogadore, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ohio Grocers Association

    EIN 340824138 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Ohio Grocers Foundation

    EIN 311398501 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Ohio Growth Partnership

    EIN 831942281 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Ohio Guernsey Breeders Assoc Inc

    EIN 346002082 · Headquarters: Marysville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Ohio Gun Collectors Association

    EIN 346597397 · Headquarters: Sagamore Hills, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Ohio Half Arabian Horse Association

    EIN 237420791 · Headquarters: NEW ALBANY, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Ohio Harness Horsemen's Association

    EIN 316050108 · Headquarters: Grove City, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Ohio Health Care Association

    EIN 316056295 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Ohio Health Information Management Association Inc

    EIN 310918571 · Headquarters: GAHANNA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Ohio Health Policy Alliance

    EIN 392951731 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Ohio Hematology Oncology Society

    EIN 311304908 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Ohio Hemp Industrial Alliance

    EIN 842608458 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  55. Ohio Heroes

    EIN 851082430 · Headquarters: CANTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Ohio High School Basketball Coaches Assoc Inc

    EIN 311029283 · Headquarters: UNIONTOWN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Ohio High School Fastpitch Softball Coac

    EIN 311282595 · Headquarters: CANFIELD, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  58. Ohio High School Speech League

    EIN 311263690 · Headquarters: AKRON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Ohio Hills Health Services

    EIN 341192599 · Headquarters: BARNESVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Ohio History Connection Foundation

    EIN 311089327 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Ohio Home Builders Association

    EIN 314365772 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Ohio Home Office Life & Health Underwriters Association

    EIN 311335237 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  63. Ohio Home Ownership Coalition

    EIN 821727831 · Headquarters: SPRINGBORO, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  64. Ohio Horse Racing Council

    EIN 412080993 · Headquarters: Northfield, OH, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  65. Ohio Hospital Association

    EIN 314270340 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Ohio Hospitals Group Rated Workers Compensation Program Inc

    EIN 311314404 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Ohio Humanities Council

    EIN 310901572 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Ohio Identification Officers Association

    EIN 237297369 · Headquarters: Centerville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ohio Independent Automobile Dealers Association Inc

    EIN 311384932 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Ohio Indiana Northern Ky Chapter Oink

    EIN 311769044 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  71. Ohio Industry Liaison Group

    EIN 460800094 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Ohio Insurance Agents Association Inc

    EIN 314406219 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Ohio Insurance Guaranty Association

    EIN 341112111 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Ohio Insurance Institute

    EIN 314373065 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Ohio International Trade

    EIN 393283076 · Headquarters: BEACHWOOD, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Ohio Iota Chapter of Sigma Phi Epsilon Fraternity

    EIN 346580177 · Headquarters: Toldeo, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Ohio Iota House Corp

    EIN 311286367 · Headquarters: Vandalia, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Ohio Jigsaw Puzzle Association

    EIN 333415780 · Headquarters: New Richmond, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ohio Job and Family Services Directors Association

    EIN 311140879 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Ohio Junior Chamber of Commerce Inc

    EIN 314374047 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Ohio Junior Hockey Association Inc

    EIN 341658911 · Headquarters: Independence, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Ohio Justice Fund

    EIN 384054869 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  83. Ohio Kentucky Administrative District Council

    EIN 261142360 · Headquarters: AMHERST, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  84. Ohio Kids for Creativity Region 15

    EIN 472165970 · Headquarters: Novelty, OH, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  85. Ohio Kurdish Coalition Ohio Kurdish Coalition

    EIN 922462229 · Headquarters: Galloway, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  86. Ohio Laborers Benefits

    EIN 316052984 · Headquarters: Westerville, OH, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Ohio Laborers District Council-Ohio Contractors Association Cooperation & E Ducat

    EIN 311443974 · Headquarters: Westerville, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Ohio Laborers Training and Apprenticeship Fund

    EIN 310739703 · Headquarters: Westerville, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Ohio Lactation Consultant Assoc C/o Brittney Gibson

    EIN 311408430 · Headquarters: DEFIANCE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Ohio Land Title Association

    EIN 311034919 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Ohio Landscape Association Inc

    EIN 341665391 · Headquarters: BROADVIEW HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Ohio Lasers Orange Fastpitch

    EIN 464523864 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  93. Ohio Law & Liberty Foundation Inc

    EIN 825238174 · Headquarters: GRANVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  94. Ohio Law Enforcement Explorer Advisors Association

    EIN 800487733 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Ohio Lawn Care Association

    EIN 311319279 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Ohio Legends Youth Baseball

    EIN 813618837 · Headquarters: Massillon, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  97. Ohio Library Council

    EIN 311366188 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Ohio Licensed Beverage Associates Inc

    EIN 311415780 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Ohio Life & Health Insurance Guaranty Association

    EIN 311297832 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Ohio Lions Past District Governors Association

    EIN 471981459 · Headquarters: Grove City, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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