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 Livestock Coalition

    EIN 311311231 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Ohio Living Quaker Heights

    EIN 310538523 · Headquarters: WAYNESVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Ohio Lobbying Association

    EIN 311273977 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Ohio Manufactured Homes Association

    EIN 310744826 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. Ohio Manufacturers' Association

    EIN 314270490 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Ohio Manufacturing Innovation Cente

    EIN 833897491 · Headquarters: HILLIARD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Ohio Medical Directors Association

    EIN 341706697 · Headquarters: Lewis Center, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. Ohio Michigan Summer Swim League C/o Kathryn a Gifford

    EIN 343747312 · Headquarters: Delta, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Ohio Mid-eastern Governments Assoc

    EIN 310866392 · Headquarters: CAMBRIDGE, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  10. Ohio Middle Level Association

    EIN 510137819 · Headquarters: MACEDONIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Ohio Milking Shorthorn Society

    EIN 352793833 · Headquarters: WASHINGTON COURT HOUSE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Ohio Mortgage Bankers Association

    EIN 237111836 · Headquarters: TWINSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Ohio Mortgage Bankers PAC

    EIN 201699421 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Ohio Mosquito and Vector Control Association

    EIN 341507500 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Ohio Motor Carriers Labor Relations Association

    EIN 314407552 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Ohio Motorcycle Dealers Association

    EIN 237390827 · Headquarters: DUBLIN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Ohio Municipal Attorneys Association

    EIN 310894182 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Ohio Municipal Clerks Association

    EIN 311103027 · Headquarters: PICKERINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Ohio Municipal Electric Association

    EIN 340943554 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Ohio Municipal League

    EIN 316402416 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Ohio Museum of Transportation

    EIN 341695056 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Ohio Museums Association Inc

    EIN 341221501 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Ohio Music Education Association (Central Organization)

    EIN 316077318 · Headquarters: MEDINA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Ohio Music Education Association (Group) C/o J Wardeska

    EIN 311235273 · Headquarters: MEDINA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Ohio Muslim Association Organization

    EIN 854360413 · Headquarters: Moreland Hills, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Ohio National Foundation

    EIN 311230164 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  27. Ohio National Guard Association

    EIN 316049334 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Ohio National Guard Enlisted Association

    EIN 341206379 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Ohio Native Plant Society Inc

    EIN 341441505 · Headquarters: Newbury, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Ohio News Media Association

    EIN 314270700 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Ohio News Photographers Association Inc

    EIN 237328729 · Headquarters: Lakewood, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Ohio No Till Council

    EIN 311557238 · Headquarters: MINSTER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ohio North Coast Chapter No 36 of Vbob

    EIN 611593835 · Headquarters: ROCKY RIVER, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  34. Ohio North State Referee Committee

    EIN 900428758 · Headquarters: NORTHFIELD, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Ohio Northern University Ncpa Student Chapter

    EIN 203590174 · Headquarters: Ada, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  36. Ohio Nu Alumni Corporation of the Sigma Phi Epsilon Fraternity

    EIN 346580184 · Headquarters: North Ridgeville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Ohio Nurses Association

    EIN 271613494 · Headquarters: Midvale, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  38. Ohio Nurses Association District 10

    EIN 310397550 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Ohio Nurses Association-phn of the Cuyahogo County Board of Health

    EIN 461817454 · Headquarters: Parma, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  40. Ohio Nurses Employees Association

    EIN 311456968 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Ohio Nut Growers Assoc

    EIN 310961696 · Headquarters: SUNBURY, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Ohio Oil & Gas Association

    EIN 314363514 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Ohio Operating Engineers Health & Welfare Plan

    EIN 314446857 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Ohio Operation Lifesaver

    EIN 311176181 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  45. Ohio Ophthalmological Society

    EIN 310921016 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Ohio Optometric Association

    EIN 314442955 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Ohio Orthodox Charitable and Scholarship Foundation

    EIN 341458747 · Headquarters: North Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Ohio Orthopaedic Society

    EIN 311191338 · Headquarters: Hilliard, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  49. Ohio Orthotics & Prosthetics Assoc Inc

    EIN 311068080 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Ohio Osteopathic Association

    EIN 316049335 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Ohio Osteopathic Hospital Association

    EIN 311250394 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  52. Ohio Osteopathic Political Action Committee

    EIN 316162266 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Ohio Paint Horse Club Inc

    EIN 311043951 · Headquarters: DELAWARE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Ohio Parks and Recreation Association

    EIN 346556126 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Ohio Patrolmen's Benevolent Association Inc

    EIN 341131531 · Headquarters: NORTH ROYALTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. Ohio Pest Management Association

    EIN 341408152 · Headquarters: Cleveland Heights, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Ohio Pharmacists Association

    EIN 314271660 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Ohio Pharmacists Foundation

    EIN 311337520 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. Ohio Phi of Sigma Alpha Epsilon House Corporation

    EIN 311495787 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Ohio Philharmonic Orchestra Inc

    EIN 273106066 · Headquarters: Cleveland Heights, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Ohio Philosophical Association

    EIN 301341737 · Headquarters: Ada, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  62. Ohio Physical Therapy Association

    EIN 310824426 · Headquarters: Westerville, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Ohio Physicians for Reproductive Rights Action Alliance

    EIN 883567514 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Ohio Physicians for Reproductive Rights Pac

    EIN 883726891 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Ohio Playmakers Sports Association

    EIN 813363456 · Headquarters: Orrville, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Ohio Podiatric Medical Association

    EIN 237239698 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Ohio Poetry Association Inc

    EIN 310914855 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Ohio Pork Council

    EIN 310738477 · Headquarters: NEW ALBANY, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Ohio Post Anesthesia Nurses Association Opana

    EIN 341341657 · Headquarters: WHITEHOUSE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Ohio Postal History Society

    EIN 341212575 · Headquarters: Solon, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  71. Ohio Poultry Association

    EIN 314379530 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Ohio Precancel Club

    EIN 310933258 · Headquarters: Massillon, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Ohio Precast Concrete Association

    EIN 311480550 · Headquarters: Tipp City, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Ohio Precious Metals Association

    EIN 923851831 · Headquarters: PARMA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Ohio Premier Soccer Club of Dublin Ohio

    EIN 311284756 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Ohio Prescribed Fire Council

    EIN 822609621 · Headquarters: DUBLIN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Ohio Preservation Alliance

    EIN 311090200 · Headquarters: GALION, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ohio Preservation Council

    EIN 510468694 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Ohio Pretrial Justice Committee

    EIN 842813158 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. Ohio Prevention Professionals Association Inc

    EIN 311232607 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Ohio Private College Instrumental Conductors Association

    EIN 452402325 · Headquarters: Gambier, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ohio Pro Development

    EIN 871988261 · Headquarters: Strongsville, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. Ohio Produce Growers and Marketers Association

    EIN 314379746 · Headquarters: FRAZEYSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Ohio Progressive Collaborative

    EIN 822146860 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Ohio Prolife Action Inc

    EIN 453581925 · Headquarters: Gallipolis, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  86. Ohio Promenade Corporation

    EIN 464745814 · Headquarters: New Richmond, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ohio Promotional Products Assoc

    EIN 341515106 · Headquarters: AKRON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Ohio Propane Gas Association

    EIN 310801375 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Ohio Prosperity Initiative

    EIN 271697961 · Headquarters: Solon, OH, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  90. Ohio Provider Resource Association

    EIN 311559921 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Ohio Psychiatric Physicians Association

    EIN 346558859 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Ohio Psychiatric Physicians Foundation

    EIN 316181034 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Ohio Psychological Association

    EIN 310833663 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Ohio Public Interest Research Group Inc

    EIN 341165210 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  95. Ohio Public Radio Inc

    EIN 311314329 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Ohio Public Transit Association

    EIN 237094806 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Ohio Pumpkin Festival

    EIN 341192841 · Headquarters: BARNESVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  98. Ohio Quarter Horse Association

    EIN 341034161 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Ohio Railroad Association

    EIN 316402243 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Ohio Ralik Ratak Aid

    EIN 921051337 · Headquarters: CELINA, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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