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. Alumnae Association of the Columbus School for Girls Inc

    EIN 310950006 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. Alumni Association Bethesda School of Nursing

    EIN 316032459 · Headquarters: GOSHEN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Alumni Association of Amanda Clearcreek High School

    EIN 311255079 · Headquarters: AMANDA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Alumni Association of Eastwood

    EIN 464706864 · Headquarters: Pemberville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Alumni Association of Gamma-xi Kappa Sigma Fraternity

    EIN 471940266 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Alumni Association of Saint Thomas Hospital School of Nursing

    EIN 237302274 · Headquarters: Canal Fulton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Alvarado School

    EIN 821941895 · Headquarters: EDON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Alvis

    EIN 310743167 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Am Society of Heating - 039 Columbus

    EIN 237400381 · Headquarters: Westerville, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  10. Am Vet Post 698 John W Eustler Post 698

    EIN 300063026 · Headquarters: MIDDLE POINT, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Am Vets of Kettering Post 2003 Ladies Auxiliary

    EIN 020612612 · Headquarters: Kettering, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Ama District 11 Motorcycle Association

    EIN 341234285 · Headquarters: GAHANNA, OH, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  13. Amalgamated Transit Union 272

    EIN 340643748 · Headquarters: youngstown, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Amalgamated Transit Union Division #627

    EIN 310199105 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Amalgamated Transit Union Local 1385

    EIN 310471828 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Amalgamated Transit Union Local 268

    EIN 340063930 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Amalgamated Transit Union Local 697

    EIN 344175645 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Amanda Clearcreek Classroom Teachers Association

    EIN 311050599 · Headquarters: Amanda, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Amanda Small Trust Uw

    EIN 016029615 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. Amaryllis Ridge Homeowners Association Inc

    EIN 843861554 · Headquarters: LOVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Amasab Inc

    EIN 863428258 · Headquarters: HUDSON, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Amateur Athletic Union of the United States

    EIN 455199141 · Headquarters: Bedford Heights, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Amateur Athletic Union of the United States

    EIN 680676075 · Headquarters: Mansfield, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. Amateur Athletic Union of the United States Inc

    EIN 813477442 · Headquarters: Mentor on the Lake, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  25. Amateur Athletic Union of the United States Inc

    EIN 882667683 · Headquarters: Carrollton, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  26. Amateur Athletic Union of the United States Inc

    EIN 990912509 · Headquarters: Gahanna, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Amateur Cyclesport Organization of Ohio Inc

    EIN 311285044 · Headquarters: HEBRON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Amateur Winemakers Guild Inc

    EIN 814622391 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Amazing Grace Treatment Center Inc

    EIN 872648889 · Headquarters: Dayton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Amber & Babe Animal Foundation

    EIN 341711353 · Headquarters: VERMILION, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Amber's Guiding Lamp

    EIN 884258491 · Headquarters: RAVENNA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. Amelia American Legion Bicentennial Unit 773 Womens Auxilliary

    EIN 455184507 · Headquarters: Amelia, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Amer Legion Scholarship Ta

    EIN 237718697 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  34. Amercian Legion

    EIN 314141475 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Amercian Legion

    EIN 346570546 · Headquarters: Bolivar, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Amerian Legion Post 360

    EIN 316052839 · Headquarters: New Paris, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. America Issues

    EIN 475135558 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  38. America Scores Cleveland

    EIN 200500153 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. American Academy of Family Physicians

    EIN 237000001 · Headquarters: Rock Creek, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. American Academy of Family Physicians

    EIN 237059173 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. American Academy of Family Physicians

    EIN 237059664 · Headquarters: Delphos, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. American Academy of Family Physicians

    EIN 237148623 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. American Academy of Family Physicians

    EIN 237258017 · Headquarters: Wadsworth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. American Academy of Family Physicians

    EIN 316062680 · Headquarters: Zanesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. American Academy of Family Physicians

    EIN 824001149 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. American Academy of Matrimonial Lawyers Ohio Chapter

    EIN 341469097 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. American Academy of Research Historians of Medieval Spain

    EIN 480948703 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. American Advertising Federation- Cl

    EIN 340148450 · Headquarters: MEDINA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. American Arab Research Institute

    EIN 842470918 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  50. American Art Society of Cincinnati

    EIN 311110305 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. American Art Works Foundation

    EIN 311177855 · Headquarters: Brookville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. American Asociation of Neuroscience Nurses

    EIN 931221062 · Headquarters: Centerburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. American Association of Automatic Door Manufacturers

    EIN 341767788 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. American Association of Healthcare Administrative Management

    EIN 943087806 · Headquarters: Brunswick, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. American Association of Physicians from India

    EIN 341599674 · Headquarters: HUBBARD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Association of University Professors University of Cincinnati

    EIN 310865346 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. American Association of University Professors-ccc

    EIN 341248403 · Headquarters: INDEPENDENCE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. American Association of University Women

    EIN 346538867 · Headquarters: Warren, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. American Association of University Women Inc

    EIN 346556030 · Headquarters: Curtice, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Association of Zoo Keepers

    EIN 311307572 · Headquarters: Powell, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. American Association of Zoo Keepers

    EIN 471025880 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Association of Zoo Keepers

    EIN 912078792 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Bankruptcy Law Forum

    EIN 311246190 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. American Begonia Society

    EIN 872743774 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Bladesmith Society Inc

    EIN 521383331 · Headquarters: GRAND RAPIDS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. American Blind Bowling Association Inc

    EIN 831162160 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. American Britany Club Inc

    EIN 237361098 · Headquarters: plain city, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. American Brittany Club Inc

    EIN 273306356 · Headquarters: gallipolis, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. American Brush Manufacturers Association

    EIN 236272145 · Headquarters: WATERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. American Buckeye Club

    EIN 472870940 · Headquarters: Marengo, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  71. American Ceramic Society Inc

    EIN 311040399 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  72. American Ceramic Society Inc

    EIN 311040403 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. American Ceramic Society Inc

    EIN 311040431 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. American Ceramic Society Inc

    EIN 311040435 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  75. American Ceramic Society Inc

    EIN 311040448 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  76. American Ceramic Society Inc

    EIN 822416020 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  77. American Ceramic Society Inc

    EIN 822435073 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. American Ceramic Society Inc

    EIN 822519570 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  79. American Ceramic Society Inc

    EIN 830865118 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. American Ceramic Society Inc

    EIN 830872175 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  81. American Ceramic Society Inc

    EIN 832244177 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. American Ceramic Society Inc

    EIN 832288130 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. American Ceramic Society Inc

    EIN 851307085 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. American Ceramic Society Inc

    EIN 860890446 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  85. American Ceramic Society Inc

    EIN 911858628 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  86. American Ceramic Society Inc

    EIN 911858642 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. American Ceramic Society Inc

    EIN 911858673 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  88. American Ceramic Society Inc

    EIN 911858696 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. American Ceramic Society Inc

    EIN 911858706 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. American Ceramic Society Inc

    EIN 911858713 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  91. American Chemical Society

    EIN 046167820 · Headquarters: Maumee, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Chemical Society

    EIN 316049380 · Headquarters: Marysville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Chemical Society

    EIN 316050119 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. American Chemical Society

    EIN 316050676 · Headquarters: Vincent, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. American Chemical Society

    EIN 340810128 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. American Chemical Society

    EIN 346524266 · Headquarters: New Franklin, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. American Chemical Society

    EIN 346538411 · Headquarters: Chardon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. American Chemical Society

    EIN 346554938 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. American Chemical Society

    EIN 346555640 · Headquarters: Wapakoneta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. American Chemical Society

    EIN 346556597 · Headquarters: Youngstown, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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