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. American Nephrology Nurses Association

    EIN 383815168 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Nephrology Nurses Association Black Swamp #323

    EIN 371605357 · Headquarters: SYLVANIA, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Optometric Student Association Incorporated

    EIN 237251341 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Orff-schulwerk Association

    EIN 311122255 · Headquarters: Fairfield, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Orff-schulwerk Association

    EIN 341447290 · Headquarters: Northfield, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Orff-schulwerk Association

    EIN 341561911 · Headquarters: Bowling Green, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Outlaws - Dayton Oh Chapter

    EIN 473007038 · Headquarters: Huber Heights, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  8. American Outlaws Cleveland Chapter Inc

    EIN 832589032 · Headquarters: Brecksville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. American Outlaws Columbus Chapter Inc

    EIN 851322290 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  10. American Pediatric Surgery Managers Assoc

    EIN 061336067 · Headquarters: Grove City, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Peptide Society Inc

    EIN 237086583 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. American Pharmacists Association Academy of Student Pharmacists

    EIN 272464195 · Headquarters: Rootstown, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Pharmacists Association Academy of Student Pharmacists

    EIN 316049839 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Pharmacists Association Academy of Student Pharmacists

    EIN 346556167 · Headquarters: Ada, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Pharmacists Association Academy of Student Pharmacists

    EIN 346564556 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Pharmacists Association Academy of Student Pharmacists

    EIN 900576352 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Planning Association

    EIN 510150311 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990

  18. American Postal Workers Union

    EIN 237341394 · Headquarters: Mentor, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. American Postal Workers Union

    EIN 237341810 · Headquarters: Steubenville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Postal Workers Union

    EIN 237341843 · Headquarters: Springfield, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  21. American Postal Workers Union

    EIN 237341855 · Headquarters: Tiffin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. American Postal Workers Union

    EIN 237343036 · Headquarters: Portsmouth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Postal Workers Union

    EIN 237343543 · Headquarters: Kent, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. American Postal Workers Union

    EIN 237343653 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. American Postal Workers Union

    EIN 237343657 · Headquarters: Cambridge, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. American Postal Workers Union

    EIN 237343827 · Headquarters: athens, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. American Postal Workers Union

    EIN 310814993 · Headquarters: Dayton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Postal Workers Union

    EIN 310829611 · Headquarters: REYNOLDSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. American Postal Workers Union

    EIN 341231158 · Headquarters: MANSFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Postal Workers Union

    EIN 346533651 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. American Postal Workers Union

    EIN 346555831 · Headquarters: Brewster, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. American Postal Workers Union

    EIN 346578806 · Headquarters: Zanesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Postal Workers Union

    EIN 364684710 · Headquarters: NORTHFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Postal Workers Union

    EIN 800405935 · Headquarters: IRONTON, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. American Postal Workers Union

    EIN 811842067 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. American Postal Workers Union

    EIN 812161982 · Headquarters: Cleveland Hts, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. American Postal Workers Union 170

    EIN 341033733 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. American Postal Workers Union 2824

    EIN 237343813 · Headquarters: ASHTABULA, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. American Postal Workers Union 3957

    EIN 237344278 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. AMERICAN POSTAL WORKERS UNION Aka Youngstown Area Local 443 APWU

    EIN 237345072 · Headquarters: Youngstown, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. AMERICAN POSTAL WORKERS UNION Akron Metro Area Local

    EIN 341097534 · Headquarters: Akron, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. American Postal Workers Union Auxiliary

    EIN 316059522 · Headquarters: Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. American Postal Workers Union Auxiliary

    EIN 346571986 · Headquarters: Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. AMERICAN POSTAL WORKERS UNION DBA APWU Tri County Ohio Local 7038

    EIN 341382523 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. American Postal Workers Union Local 438

    EIN 346556058 · Headquarters: Lima, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. American Production & Inventory Control Society

    EIN 341329305 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. American Production & Inventory Control Society Cleveland Chapter

    EIN 341276288 · Headquarters: Cleveland, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. American Production and Inventory Control Society

    EIN 311224646 · Headquarters: Lima, OH, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  49. American Production and Inventory Control Society Inc

    EIN 316048915 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. American Production and Inventory Control Society Incorporated Akron Chapter

    EIN 341335051 · Headquarters: Copley, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. American Production and Inventory Control Society North Cent Oh Chap

    EIN 341282651 · Headquarters: Mansfield, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  52. American Real Estate Society

    EIN 341472979 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. American Renaissance Charitable Group

    EIN 412943963 · Headquarters: Hudson, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. American Rental Association

    EIN 311324842 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. American Review of China Studies

    EIN 464792246 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. American Rose Society

    EIN 237410986 · Headquarters: Willoughby Hills, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. American Rose Society

    EIN 341411897 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  58. American Rose Society

    EIN 341412733 · Headquarters: N ROYALTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Rose Society

    EIN 371564453 · Headquarters: WORTHINGTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Rose Society

    EIN 581782979 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  61. American Rose Society

    EIN 581783074 · Headquarters: Fairfield Twp, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Rose Society

    EIN 581827973 · Headquarters: Painesville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. American Rose Society

    EIN 581832710 · Headquarters: Maumee, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. American Saluki Association C/o Lea Anne Broseus

    EIN 237407753 · Headquarters: THORNVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. American School Band Directors Association

    EIN 237136046 · Headquarters: LIMA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. American Share Insurance

    EIN 237376679 · Headquarters: Hilliard, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. American Shire Horse Association

    EIN 910987899 · Headquarters: Fredericktown, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Sickle Cell Anemia Association Inc

    EIN 237178345 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. American Single Shot Rifle Association

    EIN 341257495 · Headquarters: SPENCERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. American Society for Composites

    EIN 311136469 · Headquarters: KETTERING, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. American Society for Dental Aesthetics Inc

    EIN 133141753 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. American Society for Training & Development

    EIN 316065491 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Society of Appraisers

    EIN 521343661 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  74. American Society of Architectural Illustrators Inc

    EIN 223038013 · Headquarters: CHILLICOTHE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. American Society of Criminologyinc

    EIN 616035485 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. American Society of Gas Engineers

    EIN 340811512 · Headquarters: INDEPENDENCE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. American Society of Heating Refrigerating & A-c Engineers

    EIN 237097163 · Headquarters: Uniontown, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. American Society of Heating Refrigerating & A-c Engineers

    EIN 237379631 · Headquarters: DAYTON, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. American Society of Heating Refrigerating & A-c Engineers

    EIN 237387741 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. American Society of Interior Design Chapter 32

    EIN 237417519 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. American Society of Interior Desingers Ohio North

    EIN 237417520 · Headquarters: MEDINA, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. American Society of Media Photographers Inc

    EIN 222912504 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. American Society of Media Photographers Inc

    EIN 222912523 · Headquarters: Willoughby, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. American Society of Plumbing Engineers

    EIN 311527224 · Headquarters: New Franklin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. American Society of Plumbing Engineers

    EIN 311527229 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. American Society of Plumbing Engineers

    EIN 311527233 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. American Sokol Inc

    EIN 341004423 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Sokol Organization and Educational and Physical Culture O

    EIN 341705514 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. American Sportsman's Club Inc

    EIN 341451908 · Headquarters: EAST CANTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. American Staffing Association

    EIN 311430879 · Headquarters: LORAIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. American Statistical Association

    EIN 311212807 · Headquarters: Oxford, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Statistical Association

    EIN 341590549 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. American Statistical Association

    EIN 825067468 · Headquarters: Hilliard, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American String Teachers Association Incorporated

    EIN 316077230 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. American Subcontractors Association of Ohio

    EIN 261626477 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. American Train Dispatchers Improvement Association

    EIN 360730920 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. American Turners Toledo

    EIN 344242710 · Headquarters: PERRYSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. American Vaulting Association

    EIN 824967849 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  99. American Vertans of World War II

    EIN 346557283 · Headquarters: Mansfield, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. American Veterans of World 71 Robert E Burkart

    EIN 311391654 · Headquarters: FAIRFIELD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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