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. Assoc Municipal and County Judges of Ohio

    EIN 311027021 · Headquarters: Chardon, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Assoc of College & Univ Housing Officers Intl Research & Educ Fdn

    EIN 311243003 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Assoc of Fundraising Professionals Greater Dayton Region Chapter

    EIN 311256830 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Assoc of Vet Affairs Nurse Anesthet

    EIN 237299835 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Assoc of Women in the Metal Industr Awmi - Columbus Chapter

    EIN 311667087 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Associated Bird Dog Clubs of Ohio

    EIN 341765652 · Headquarters: Elyria, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Associated Builders & Contractors Central Ohio Chapter

    EIN 310743061 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Associated Builders & Contractors Inc

    EIN 237361434 · Headquarters: BROADVIEW HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Associated Builders and Contractors of Ohio

    EIN 311695250 · Headquarters: BROADVIEW HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Associated Builders and Contractors Ohio Valley Chapter

    EIN 310840204 · Headquarters: SPRINGBORO, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Associated Charities

    EIN 346400067 · Headquarters: FINDLAY, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. Associated Electrical Contractors - Central Ohio

    EIN 237399281 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Associated Employees of Columbiana County Joint Vocational School

    EIN 341572240 · Headquarters: East Liverpool, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Associated General Contractors of America Inc West Central Ohio Divi

    EIN 310684925 · Headquarters: Beavercreek, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Associated General Contractors of Northwest Ohio

    EIN 344442062 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Associated General Contractors of Ohio

    EIN 310787948 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Associated General Contractors of Ohio Inc Cleveland Division

    EIN 346540827 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Associated Green Industries of Ne Ohio Inc

    EIN 341572677 · Headquarters: HIGHLAND HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Associated Plumbing and Hydronic Contractors of Central Ohio

    EIN 311266370 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Associated School Employees Credit Union Inc

    EIN 340928469 · Headquarters: Youngstown, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Associates Health Trust

    EIN 346817365 · Headquarters: SOLON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Associates of Traditional Hooking Artists

    EIN 800258087 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Association for Better Community Development Inc

    EIN 237362592 · Headquarters: Canton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Association for Bridge Construction and Design Neoh

    EIN 333355199 · Headquarters: Strongsville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Association for Computing Machinery

    EIN 222762750 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. Association for Computing Machinery

    EIN 222763174 · Headquarters: Ada, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  27. Association for Middle Level Education

    EIN 310865702 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Association for Persons in Supported Employment

    EIN 521842545 · Headquarters: Celina, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Association for Professionals in Infection Ctrl & Epidemiology Inc

    EIN 042662165 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Association for Professionals in Infection Ctrl & Epidemiology Inc

    EIN 222537184 · Headquarters: Delta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Association for Retarded Citizens of Washington County

    EIN 314426602 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Association for the Severely Handicapped

    EIN 341454184 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Association for Women in Science Inc

    EIN 204486174 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Association for Women in Science Inc

    EIN 274517925 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  35. Association of Alpha Alpha Chapter Alumnae of Alpha Sigma Alpha

    EIN 474641922 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Association of Anesthesia Clinical Directors

    EIN 742566071 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Association of Camps Farthest Out Inc

    EIN 410788319 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. Association of Chapters of the Fourth District of Ohio

    EIN 300517627 · Headquarters: West Salem, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Association of College & University Housing Officers International

    EIN 936049979 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Association of Community Health Nursing Educators Inc

    EIN 911230405 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Association of Consulting Chemists and Chemical Engineers Inc

    EIN 131623903 · Headquarters: WAVERLY, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Association of Desk & Derrick Clubs

    EIN 251564444 · Headquarters: AKRON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Association of Desk & Derrick Clubs

    EIN 341259348 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  44. Association of Desk & Derrick Clubs

    EIN 341358977 · Headquarters: New Philadelphia, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Association of Drilled Shaft Contractors

    EIN 800299853 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Association of Firearm & Toolmark Examiners

    EIN 237153006 · Headquarters: BLUE ASH, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Association of Fundraising Professionals

    EIN 311242682 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Association of Fundraising Professionals

    EIN 341697894 · Headquarters: Youngstown, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Association of Girl Scout Executive Staff

    EIN 620843154 · Headquarters: Sandusky, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Association of Greater Cincinnati Heating & Cooling Contractors

    EIN 237248937 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Association of Independent Colleges & Universities of Ohio

    EIN 310746875 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Association of Information Technology Professionals

    EIN 346543367 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Association Of Insurers for Research and Standards Inc

    EIN 863745419 · Headquarters: Brunswick, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Association of Notre Dame Clubs Inc

    EIN 341489354 · Headquarters: NORTH CANTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Association of Notre Dame Clubs Inc - Cleveland

    EIN 346558951 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Association of Notre Dame Clubs Inc - Columbus

    EIN 310991707 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Association of Notre Dame Clubs Inc - Dayton Ohio

    EIN 311207322 · Headquarters: Springboro, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Association of Notre Dame Clubs Inc - Mahoning and Shenango Valleys

    EIN 341404720 · Headquarters: McDonald, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Association of Notre Dame Clubs Inc - Mansfield

    EIN 341404721 · Headquarters: Ontario, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Association of Notre Dame Clubs Inc - Toledo

    EIN 346447044 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Association of Notre Dame Clubs Inc- Akron

    EIN 341489231 · Headquarters: Copley, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Association of Ohio Commodores

    EIN 510173765 · Headquarters: BUCKEYE LAKE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Association of Ohio Health Commissioners

    EIN 310668711 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Association of Ohio Recyclers

    EIN 341624695 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Association of Operating Room Nurses Inc

    EIN 311074551 · Headquarters: NEW ALBANY, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. Association of Operating Room Nurses Inc

    EIN 311095118 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  67. Association of Operating Room Nurses Inc

    EIN 311302849 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Association of Operating Room Nurses Inc

    EIN 341374665 · Headquarters: BERLIN HTS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Association of Operating Room Nurses Inc

    EIN 800149599 · Headquarters: Chagrin Falls, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  70. Association of Philippine Physician of Greater Cin

    EIN 311002400 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. Association of Polycarbonate Building System Integrators

    EIN 453278377 · Headquarters: Medina, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  72. Association of Professional Engineers in Cincinnati Service

    EIN 237076702 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Association of Professional Researchers for Advancement

    EIN 421583305 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Association of Sister Brother and Priest Physicians

    EIN 473343945 · Headquarters: MT ST JOSEPH, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. Association of South Slavic Peoples

    EIN 814564557 · Headquarters: YELLOW SPRINGS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Association of Specialists in Aging

    EIN 341553355 · Headquarters: Mentor, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Association of Specialty Cut Flower Growers Inc

    EIN 581888296 · Headquarters: OBERLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Association of Specialty Market Operators

    EIN 311404022 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Association of Traditional Hooking Artists

    EIN 263133134 · Headquarters: Chesterland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Association of Two Toledos

    EIN 341179108 · Headquarters: toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Association to Help the Lords Work

    EIN 341530429 · Headquarters: Painesville, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  82. Astronomy Club of Akron Incorporated

    EIN 237222237 · Headquarters: New Franklin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. At Home By High

    EIN 821607009 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Athens Aero Club Inc

    EIN 310746953 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Athens Area Chamber of Commerce

    EIN 310670449 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Athens Area Mediation Service

    EIN 311358816 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Athens Athletics Club

    EIN 994472856 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Athens Builders Industries Association Inc

    EIN 611566458 · Headquarters: ATHENS, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  89. Athens County Board of Realtors

    EIN 311115809 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. Athens County Chapter Ohio Retired Teachers Association

    EIN 272889475 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  91. Athens County Farm Bureau

    EIN 316050566 · Headquarters: Pomeroy, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Athens County Food Pantry

    EIN 341313139 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Athens County Foundation

    EIN 311040215 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Athens County Ohio Golf League

    EIN 862408884 · Headquarters: Albany, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Athens County Schools Employees Dental Plan

    EIN 311388687 · Headquarters: Glouster, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Athens County Special Deputies Association

    EIN 900414400 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Athens Eac

    EIN 832579937 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Athens Education Association

    EIN 316162956 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Athens Friends and Newcomers

    EIN 310894177 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Athens Garden Club

    EIN 263710215 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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