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. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617488 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617489 · Headquarters: PARMA, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617490 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617491 · Headquarters: CLEVES, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 237617492 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 341848336 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. United Grand Imperial Coun Knights of Red Cross of Constantine

    EIN 363423882 · Headquarters: Struthers, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. United Grand Imperial Council Knights of Red Cross of Constantin

    EIN 260087235 · Headquarters: Marietta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. United Horned Hair Sheep Association

    EIN 270163263 · Headquarters: New Lebanon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. United Independents Ohio LLC

    EIN 931534005 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  11. United Labor Agency Inc

    EIN 237180005 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. United Martial Arts Federation Inc

    EIN 311058967 · Headquarters: Reynoldsburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. United Methodist Historical Society of Ohio

    EIN 341714200 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. United Mine Workers District No 6

    EIN 237125565 · Headquarters: Barnesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. United Mine Workers of America International

    EIN 237034749 · Headquarters: New Concord, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. United Mine Workers of America International

    EIN 310890043 · Headquarters: Fresno, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. United Mine Workers of America International

    EIN 316061991 · Headquarters: Corning, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. United Mine Workers of America International

    EIN 316080667 · Headquarters: DILLONVALE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. United Mine Workers of America International

    EIN 340589864 · Headquarters: Powhatan Point, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. United Mine Workers of America International

    EIN 340751588 · Headquarters: St Clairsville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. United Mine Workers of America International

    EIN 341087660 · Headquarters: Bellaire, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. United Mine Workers of America International

    EIN 346571766 · Headquarters: Rayland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. United Mine Workers of America International

    EIN 550401073 · Headquarters: Saint Clairsville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. United Mine Workers of America International

    EIN 550630277 · Headquarters: YORKVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. United Mine Workers of America Loca L Union 4994

    EIN 341759591 · Headquarters: Uhrichsville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. United Muslim Masjid Association Inc

    EIN 473049755 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  27. United Ostomy Association of America Inc

    EIN 341372946 · Headquarters: Elyria, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  28. United Ostomy Association of America Inc

    EIN 510231096 · Headquarters: Wadsworth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. United Ostomy Association of America Inc

    EIN 812867260 · Headquarters: Diamond, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  30. United Polish Club

    EIN 340589967 · Headquarters: ELYRIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. United Postmasters and Managers of America

    EIN 814116699 · Headquarters: Tipp City, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. United Rehabilitation Services of Greater Dayton

    EIN 310592919 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. United Scioto Senior Activities

    EIN 310954471 · Headquarters: PORTSMOUTH, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. United Search and Rescue Support

    EIN 421858720 · Headquarters: Delta, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. United Security Forces of America International Union

    EIN 463637605 · Headquarters: Alliance, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. United Soles

    EIN 851379005 · Headquarters: Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  37. United States Air and Trade Show

    EIN 310883529 · Headquarters: VANDALIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. United States Amateur Boxing Inc

    EIN 311037763 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. United States Amateur Boxing Inc

    EIN 341351784 · Headquarters: Mineral Ridge, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. United States Cutting Tool Institute

    EIN 341568258 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. United States Diving Inc

    EIN 311328213 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  42. United States Junior Chamber of Commercce

    EIN 900680098 · Headquarters: McArthur, OH, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  43. United States Junior Chamber of Commerce

    EIN 311047212 · Headquarters: PORTSMOUTH, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. United States Junior Chamber of Commerce

    EIN 311069269 · Headquarters: Riverside, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. United States Junior Chamber of Commerce

    EIN 311075547 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. United States Junior Chamber of Commerce

    EIN 341175478 · Headquarters: NORTH CANTON, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. United States Junior Chamber of Commerce

    EIN 341586039 · Headquarters: barberton, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  48. United States Masters Swimming Inc

    EIN 311131737 · Headquarters: cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. United States Masters Swimming Inc

    EIN 341468488 · Headquarters: Lyndhurst, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. United States Power Squadron

    EIN 346555992 · Headquarters: SANDUSKY, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. United States Power Squadrons

    EIN 237000949 · Headquarters: Warren, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  52. United States Power Squadrons

    EIN 237008769 · Headquarters: PORT CLINTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. United States Power Squadrons

    EIN 237045779 · Headquarters: Jefferson, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. United States Power Squadrons

    EIN 237355508 · Headquarters: OLMSTED FALLS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. United States Power Squadrons

    EIN 311012867 · Headquarters: Kettering, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. United States Power Squadrons

    EIN 316080668 · Headquarters: North Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. United States Power Squadrons

    EIN 346528700 · Headquarters: BUTLER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. United States Power Squadrons

    EIN 346534096 · Headquarters: Toledo, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. United States Power Squadrons

    EIN 346558102 · Headquarters: Monroeville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. United States Power Squadrons

    EIN 346600891 · Headquarters: North Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. United States Power Squadrons

    EIN 346608244 · Headquarters: Elyria, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. United States Power Squadrons

    EIN 346608245 · Headquarters: BAY VILLAGE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. United States Power Squadrons

    EIN 346608246 · Headquarters: PORT CLINTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. United States Power Squadrons

    EIN 346608249 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. United States Power Squadrons

    EIN 460813116 · Headquarters: DAYTON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. United States Power Squadrons

    EIN 911868442 · Headquarters: BAY VILLAGE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. United States Power Squadrons

    EIN 911868475 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. United States Power Squadrons 29

    EIN 316049751 · Headquarters: LEWIS CENTER, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. United States Tamil Action Group

    EIN 833800259 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. United States Tennis Association Inc

    EIN 310926466 · Headquarters: Dover, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. United States Tennis Association Inc

    EIN 341301372 · Headquarters: FAIRLAWN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. United States Trotting Association

    EIN 314370196 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. United Steel Workers Local 1250

    EIN 346555012 · Headquarters: PARMA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. United Steel Workers Local 266

    EIN 310648704 · Headquarters: FRANKLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. UNited Steelwoekrs International Local Union 07993

    EIN 310838862 · Headquarters: Ashville, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. United Steelworkers

    EIN 020716914 · Headquarters: Warren, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. United Steelworkers

    EIN 237011959 · Headquarters: Crooksville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. United Steelworkers

    EIN 237028257 · Headquarters: RAVENNA, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. United Steelworkers

    EIN 237034776 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. United Steelworkers

    EIN 237042833 · Headquarters: Bryan, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. United Steelworkers

    EIN 237069233 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  82. United Steelworkers

    EIN 237077435 · Headquarters: Mansfield, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. United Steelworkers

    EIN 237141613 · Headquarters: BRYAN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. United Steelworkers

    EIN 237151077 · Headquarters: HURON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. United Steelworkers

    EIN 237248699 · Headquarters: AKRON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. United Steelworkers

    EIN 237307241 · Headquarters: Toronto, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. United Steelworkers

    EIN 237308074 · Headquarters: RIPLEY, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. United Steelworkers

    EIN 237332116 · Headquarters: Minerva, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. United Steelworkers

    EIN 237346090 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. United Steelworkers

    EIN 237385228 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. United Steelworkers

    EIN 237406303 · Headquarters: TOLEDO, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. United Steelworkers

    EIN 256064833 · Headquarters: Salem, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. United Steelworkers

    EIN 256085575 · Headquarters: E PALESTINE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. United Steelworkers

    EIN 260006413 · Headquarters: NEWARK, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. United Steelworkers

    EIN 272187972 · Headquarters: Byesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. United Steelworkers

    EIN 301004453 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. United Steelworkers

    EIN 310398496 · Headquarters: Camden, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. United Steelworkers

    EIN 310410585 · Headquarters: Maineville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. United Steelworkers

    EIN 310441568 · Headquarters: HOWARD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. United Steelworkers

    EIN 310553926 · Headquarters: Milford, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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