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 Federation of State County & Municipal Employees

    EIN 873106547 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Federation of State County & Municipal Employees

    EIN 883537662 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Federation of State County & Municipal Employees

    EIN 884301158 · Headquarters: Cuyahoga Fls, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Federation of State County & Municipal Employees

    EIN 900709012 · Headquarters: cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. American Federation of State County & Municipal Employees

    EIN 900841843 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. American Federation of State County & Municipal Employees

    EIN 911789988 · Headquarters: Pickerington, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Federation of State County & Municipal Employees

    EIN 920371509 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Federation of State County & Municipal Employees

    EIN 922327478 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. American Federation of State County & Municipal Employees

    EIN 923171464 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. American Federation of State County & Municipal Employees

    EIN 933488173 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Federation of State County & Municipal Employees Oapse Northeast District

    EIN 202642435 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. American Federation of State County and Municipal

    EIN 310603378 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  13. American Federation of State County and Municipal Employees

    EIN 316044189 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. American Federation of State County and Municipal Employees

    EIN 320411230 · Headquarters: Massillon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Federation of State County and Municipal Employees

    EIN 365099140 · Headquarters: Ontario, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Federation of State County and Municipal Employees Local 1573

    EIN 237098282 · Headquarters: ZANESVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Federation of State County L1032oh Summit County Engineer Emps

    EIN 346555723 · Headquarters: TALLMADGE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Federation of State County Lo100oh Cleveland City Emplys

    EIN 346609581 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. American Federation of State County Local 2317

    EIN 341305214 · Headquarters: AKRON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Federation of State County Municipal Employees

    EIN 262318616 · Headquarters: PAINESVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. American Federation of State County Municipal Employees

    EIN 311336311 · Headquarters: Worthington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. American Federation of State County Municipal Employees

    EIN 311439745 · Headquarters: NEWARK, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. American Federation of State County Municipal Employees

    EIN 341383867 · Headquarters: WARREN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Federation of State County Municipal Employees

    EIN 341555702 · Headquarters: Willowick, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. American Federation of State County Municipal Employees

    EIN 341774925 · Headquarters: TORONTO, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. American Federation of State County Municipal Employees

    EIN 454457964 · Headquarters: Worthington, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  27. American Federation of State County Municipal Employees

    EIN 510634920 · Headquarters: boardman, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Federation of State County Municipal Employees Local 7

    EIN 344456540 · Headquarters: Toledo, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. American Federation of Teachers

    EIN 113826218 · Headquarters: MINERAL RIDGE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Federation of Teachers

    EIN 237076116 · Headquarters: Genoa, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Federation of Teachers

    EIN 237096359 · Headquarters: Copley, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. American Federation of Teachers

    EIN 237364797 · Headquarters: Port Clinton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. American Federation of Teachers

    EIN 261894458 · Headquarters: New Lebanon, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. American Federation of Teachers

    EIN 311302165 · Headquarters: Newark, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. American Federation of Teachers

    EIN 333831998 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. American Federation of Teachers

    EIN 341271294 · Headquarters: Van Wert, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. American Federation of Teachers

    EIN 341321173 · Headquarters: North Lewisburg, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. American Federation of Teachers

    EIN 341389104 · Headquarters: Newton Falls, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. American Federation of Teachers

    EIN 341408970 · Headquarters: Arlington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. American Federation of Teachers

    EIN 341454177 · Headquarters: FREMONT, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Federation of Teachers

    EIN 341547550 · Headquarters: Cardington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. American Federation of Teachers

    EIN 341688751 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. American Federation of Teachers

    EIN 341790138 · Headquarters: ORWELL, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Federation of Teachers

    EIN 341894370 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Federation of Teachers

    EIN 346607675 · Headquarters: Mansfield, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Federation of Teachers

    EIN 372093899 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. American Federation of Teachers

    EIN 461279237 · Headquarters: New Lexington, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. American Federation of Teachers

    EIN 612186510 · Headquarters: Upper Arlington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. American Federation of Teachers

    EIN 813807927 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. American Federation of Teachers

    EIN 931983407 · Headquarters: Vanlue, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. American Federation of Teachers

    EIN 994757622 · Headquarters: Steubenville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. American Federation of Teachers 1080 Oregon City Federation of Teachers

    EIN 346607666 · Headquarters: OREGON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. American Federation of Teachers 1699 Aft

    EIN 341589749 · Headquarters: BEREA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. American Federation of Teachers Local 250 - Toledo

    EIN 344375110 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. American Fence Association Inc

    EIN 341192560 · Headquarters: STRONGSVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Financial Group Voluntary Employees Beneficiary Trust

    EIN 316541284 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. American Fisheries Society

    EIN 237438868 · Headquarters: Sandusky, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Foundation Corp

    EIN 237348126 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. American Foundation for Senior Services Inc

    EIN 311392317 · Headquarters: Port Clinton, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  60. American Foundation for the Blind New York Ny

    EIN 346575174 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  61. American Foundation to Aid the Poor Afap

    EIN 341520759 · Headquarters: Uniontown, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Foundry Society

    EIN 273555757 · Headquarters: MASSILLON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Foundry Society

    EIN 316051158 · Headquarters: MASON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Foundry Society

    EIN 341632568 · Headquarters: Powell, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Friends of Ester Segal Charity Fund Inc

    EIN 341398507 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Group Psychotherapy Association Inc

    EIN 310913304 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  67. American Guernsey Association

    EIN 020103680 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  68. American Guild of Organists

    EIN 316038730 · Headquarters: New Albany, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. American Guild of Organists

    EIN 316083470 · Headquarters: Monroe, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. American Guild of Organists

    EIN 346528437 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. American Guild of Organists

    EIN 346555727 · Headquarters: Copley, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. American Guild of Organists

    EIN 346608023 · Headquarters: Youngstown, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Guild of Organists

    EIN 616055105 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. American Guild of Organists Ago

    EIN 311241762 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Guild of Organists Ago

    EIN 346608025 · Headquarters: OBERLIN, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. American Harp Society

    EIN 942518772 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. American Harp Society

    EIN 942518776 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. American Humanist Association

    EIN 310964114 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Humanist Association

    EIN 830911351 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Immigration Lawyers Association

    EIN 911911201 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. American Inns of Court Foundation

    EIN 203318517 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. American Inns of Court Foundation

    EIN 301250659 · Headquarters: Beachwood, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. American Inns of Court Foundation

    EIN 311291602 · Headquarters: Pickerington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. American Inns of Court Foundation

    EIN 340687424 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. American Inns of Court Foundation

    EIN 341843672 · Headquarters: Sylvania, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. American Inns of Court Foundation

    EIN 464788264 · Headquarters: Canfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. American Inns of Court Foundation

    EIN 510672107 · Headquarters: Kenton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. American Inns of Court Foundation

    EIN 521636967 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. American Inns of Court Foundation William K Thomas Chapter

    EIN 341660929 · Headquarters: Cleveland, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. American Institute for Justice Innovation

    EIN 472379210 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  91. American Institute of Aeronautics and Astronautics

    EIN 311350158 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. American Institute of Aeronautics and Astronautics

    EIN 316068726 · Headquarters: Wright Patterson AFB, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. American Institute of Aeronautics and Astronautics

    EIN 316068727 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. American Institute of Aeronautics and Astronautics

    EIN 331150560 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. American Institute of Aeronautics and Astronautics

    EIN 341674068 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Institute of Aeronautics and Astronautics

    EIN 510248737 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. American Institute of Aeronautics and Astronautics

    EIN 526065024 · Headquarters: Wright Patterson AFB, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. American Institute of Architects

    EIN 341351848 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. American Institute of Architects Akron Chapter

    EIN 346611636 · Headquarters: AKRON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. American Institute of Architects Dayton Chapter

    EIN 316055759 · Headquarters: West Milton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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