Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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 Laborers Benefits

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

  2. 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

  3. Ohio Laborers Training and Apprenticeship Fund

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

  4. 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

  5. Ohio Land Title Association

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

  6. Ohio Landscape Association Inc

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

  7. Ohio Lasers Orange Fastpitch

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

  8. Ohio Law & Liberty Foundation Inc

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

  9. 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

  10. Ohio Lawn Care Association

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

  11. Ohio Legends Youth Baseball

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

  12. Ohio Library Council

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

  13. Ohio Licensed Beverage Associates Inc

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

  14. Ohio Life & Health Insurance Guaranty Association

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

  15. 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

  16. Ohio Livestock Coalition

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

  17. Ohio Living Quaker Heights

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

  18. Ohio Lobbying Association

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

  19. Ohio Manufactured Homes Association

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

  20. Ohio Manufacturers' Association

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

  21. Ohio Manufacturing Innovation Cente

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

  22. Ohio Medical Directors Association

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

  23. 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

  24. Ohio Mid-eastern Governments Assoc

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

  25. Ohio Middle Level Association

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

  26. 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

  27. Ohio Mortgage Bankers Association

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

  28. Ohio Mortgage Bankers PAC

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

  29. 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

  30. 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

  31. Ohio Motorcycle Dealers Association

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

  32. Ohio Municipal Attorneys Association

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

  33. Ohio Municipal Clerks Association

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

  34. Ohio Municipal Electric Association

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

  35. Ohio Municipal League

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

  36. Ohio Museum of Transportation

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

  37. Ohio Museums Association Inc

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

  38. Ohio Music Education Association (Central Organization)

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

  39. 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

  40. Ohio Muslim Association Organization

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

  41. Ohio National Foundation

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

  42. Ohio National Guard Association

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

  43. Ohio National Guard Enlisted Association

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

  44. Ohio Native Plant Society Inc

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

  45. Ohio News Media Association

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

  46. Ohio News Photographers Association Inc

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

  47. Ohio No Till Council

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

  48. 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

  49. Ohio North State Referee Committee

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

  50. 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

  51. Ohio Northern University PAD Prelaw Chapter

    EIN 260063558 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. 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

  53. Ohio Nurses Association

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

  54. Ohio Nurses Association District 10

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

  55. 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

  56. Ohio Nurses Employees Association

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

  57. Ohio Nut Growers Assoc

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

  58. Ohio Occupational Therapy Associati

    EIN 237112728 · Headquarters: MIDLOTHIAN, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  59. Ohio Oil & Gas Association

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

  60. Ohio Operating Engineers Health & Welfare Plan

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

  61. Ohio Operation Lifesaver

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

  62. Ohio Ophthalmological Society

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

  63. Ohio Optometric Association

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

  64. 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

  65. Ohio Orthopaedic Society

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

  66. Ohio Orthotics & Prosthetics Assoc Inc

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

  67. Ohio Osteopathic Association

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

  68. Ohio Osteopathic Hospital Association

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

  69. Ohio Osteopathic Political Action Committee

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

  70. Ohio Paint Horse Club Inc

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

  71. Ohio Parks and Recreation Association

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

  72. 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

  73. Ohio Pest Management Association

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

  74. Ohio Pharmacists Association

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

  75. Ohio Pharmacists Foundation

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

  76. 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

  77. Ohio Philharmonic Orchestra Inc

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

  78. Ohio Philosophical Association

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

  79. Ohio Physical Therapy Association

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

  80. 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

  81. 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

  82. Ohio Playmakers Sports Association

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

  83. Ohio Podiatric Medical Association

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

  84. Ohio Poetry Association Inc

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

  85. Ohio Pork Council

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

  86. 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

  87. Ohio Postal History Society

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

  88. Ohio Poultry Association

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

  89. Ohio Precancel Club

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

  90. Ohio Precast Concrete Association

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

  91. Ohio Precious Metals Association

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

  92. 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

  93. Ohio Prescribed Fire Council

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

  94. Ohio Preservation Alliance

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

  95. Ohio Preservation Council

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

  96. Ohio Pretrial Justice Committee

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

  97. Ohio Prevention Professionals Association Inc

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

  98. 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

  99. Ohio Pro Development

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

  100. 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

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