Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Ohio Alliance of Dual Enrollment Partnerships

    EIN 465247716 · Headquarters: Springfield, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Ohio Alliance of Independent STEM Schools

    EIN 843693073 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Ohio Allied Masonic Degrees Association

    EIN 874399109 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Ohio Alpha House of Pi Beta Phi

    EIN 310904802 · Headquarters: ATHENS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Ohio Alpha of Phi Delta Theta Corp

    EIN 510152635 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  6. Ohio Alpha Sigma Alpha

    EIN 474588516 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  7. Ohio Amateur Athletic Union of the United States Inc

    EIN 311175391 · Headquarters: LIBERTY TOWNSHIP, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Ohio Ambulance & Medical Transportation Association

    EIN 346619511 · Headquarters: NORTH CANTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Ohio Ambulatory Surgery Centers Pac

    EIN 010795457 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  10. Ohio American Indian Council

    EIN 341538753 · Headquarters: Minerva, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Ohio Americorps Seniors Assn

    EIN 311004967 · Headquarters: Galion, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Ohio Amish Library Inc

    EIN 341642300 · Headquarters: MILLERSBURG, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Ohio Amvets 12

    EIN 862272195 · Headquarters: Reynoldsburg, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. Ohio Apartment Association Inc

    EIN 311024479 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Ohio Apple Marketing Program

    EIN 311284376 · Headquarters: FRAZEYSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Ohio Archaeological Council Inc

    EIN 510176494 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Ohio Armed Forces Veterans Club

    EIN 821932790 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  18. Ohio Arson School Inc

    EIN 310945549 · Headquarters: Commercial Point, OH, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  19. Ohio Arts and Crafts Foundation

    EIN 237038732 · Headquarters: CAMBRIDGE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Ohio Arts Professionals Network

    EIN 310988109 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Ohio Asian American Health Coalition

    EIN 205252658 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Ohio Asociation for Gifted Children

    EIN 872607687 · Headquarters: Pataskala, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  23. Ohio Assisted Living Association Inc

    EIN 311393732 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Ohio Assn For The Education Of Young Children

    EIN 341334638 · Headquarters: Mount Gilead, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Ohio Assn of Adv Practice Nurses

    EIN 341663992 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Ohio Assoc of County Boards Serving People with Develop Disabilities

    EIN 311392869 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Ohio Assoc of Soil & Water Conservation Dist Employees

    EIN 900681855 · Headquarters: Hamilton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Ohio Assoc of Wholesalersdistributors

    EIN 311134720 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Ohio Associate Staff Union

    EIN 310964806 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Ohio Associated School Insurance System OASIS Trust

    EIN 310915345 · Headquarters: Delaware, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Ohio Association for Adult and Continuing Education

    EIN 311092306 · Headquarters: Columbus, Ohio, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Ohio Association for Court Administration Inc

    EIN 311446544 · Headquarters: MIDDLETOWN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Ohio Association for Developmental Education

    EIN 311130412 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Ohio Association for Family and Community Education

    EIN 311358563 · Headquarters: West Salem, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  35. Ohio Association for Garden Clubs Region 2

    EIN 800390131 · Headquarters: Ada, OH, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  36. Ohio Association for Gifted Children

    EIN 208259015 · Headquarters: Lewis Center, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Ohio Association for Gifted Children

    EIN 237442288 · Headquarters: GAHANNA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Ohio Association for Gifted Children

    EIN 260070185 · Headquarters: Lewisville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Ohio Association for Gifted Children

    EIN 311468802 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Ohio Association for Gifted Children

    EIN 311760532 · Headquarters: West Lafayette, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Ohio Association for Gifted Children

    EIN 341590927 · Headquarters: FINDLAY, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Ohio Association for Gifted Children

    EIN 341608085 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ohio Association for Gifted Children

    EIN 341856863 · Headquarters: Canfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Ohio Association for Gifted Children

    EIN 341915586 · Headquarters: Cuyahoga Falls, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Ohio Association for Gifted Children

    EIN 371729759 · Headquarters: Worthington, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. Ohio Association for Gifted Children

    EIN 383853464 · Headquarters: Farmersville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Ohio Association for Gifted Children

    EIN 450488081 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Ohio Association for Gifted Children

    EIN 452818973 · Headquarters: West Chester, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Ohio Association for Gifted Children

    EIN 743044205 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Ohio Association for Gifted Children

    EIN 822567410 · Headquarters: Stow, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. Ohio Association for Gifted Children

    EIN 824108473 · Headquarters: Circleville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Ohio Association for Gifted Children

    EIN 911934960 · Headquarters: Independence, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Ohio Association for Healthphysical Education Re

    EIN 237067808 · Headquarters: Worthington, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Ohio Association for Justice

    EIN 310719993 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Ohio Association for Justice Education Foundation

    EIN 310962970 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Ohio Association for Private Colleges of Teacher Education

    EIN 475605731 · Headquarters: Pepper Pike, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Ohio Association of Area Agencies on Aging

    EIN 311242326 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Ohio Association of Boards of Health

    EIN 383799256 · Headquarters: Tipp City, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Ohio Association of Broadcasters Inc

    EIN 314441868 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Ohio Association of Career Assessment Specialists

    EIN 464052129 · Headquarters: INDEPENDENCE, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  61. Ohio Association of Career Technical Superintendents

    EIN 311481567 · Headquarters: MORROW, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. Ohio Association of Cheerleading Coaches

    EIN 204184530 · Headquarters: Medina, OH, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  63. Ohio Association of Child & Youth Care Professionals Inc

    EIN 310967678 · Headquarters: Toledo, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  64. Ohio Association of Civil Trial Attorneys

    EIN 237442025 · Headquarters: WORTHINGTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Ohio Association of Colleges for Teacher Education

    EIN 311360457 · Headquarters: WOOSTER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Ohio Association of Community Action Agencies

    EIN 310842542 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Ohio Association of Community Health Centers

    EIN 341439025 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Ohio Association of Convention and Visitor Bureaus

    EIN 311131285 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  69. Ohio Association of Cosmetology Schools Inc

    EIN 311190548 · Headquarters: CANAL WINCHESTER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Ohio Association of Criminal Defense Law

    EIN 341551558 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  71. Ohio Association of Election Officials

    EIN 311079263 · Headquarters: NEWARK, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Ohio Association of Elementary School Administrators

    EIN 316141216 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Ohio Association of Emergency Vehicles Inc

    EIN 311355936 · Headquarters: Avon, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Ohio Association of Endodontists Inc

    EIN 310154842 · Headquarters: Marion, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Ohio Association of Foodservice and Pizza Operators

    EIN 311348669 · Headquarters: NEWARK, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Ohio Association of Formerly Incarcerated Offenders Inc

    EIN 800597993 · Headquarters: Dayton, OH, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  77. Ohio Association of Garden Clubs

    EIN 260833762 · Headquarters: Rushsylvania, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ohio Association of Garden Clubs

    EIN 346558620 · Headquarters: AMELIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Ohio Association of Garden Clubs Region 10

    EIN 300509382 · Headquarters: Chillicothe, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Ohio Association of Garden Clubs Region 14

    EIN 263503458 · Headquarters: Seville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Ohio Association of Garden Clubs Region 6

    EIN 263355075 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  82. Ohio Association of Goodwill Industries Inc

    EIN 237296009 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Ohio Association of Health Plans Inc

    EIN 311001446 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Ohio Association of Magistrates

    EIN 311283728 · Headquarters: PORT CLINTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Ohio Association of Mcos

    EIN 472115486 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Ohio Association of Meat Processors

    EIN 341501811 · Headquarters: FRAZEYSBURG, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Ohio Association of Medical Equipment Services

    EIN 311051331 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Ohio Association of Movers Inc

    EIN 311413724 · Headquarters: WESTERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  89. Ohio Association of Mutual Insurance Companies % Dave Grove

    EIN 340923599 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Ohio Association of Orthodontists C/o Lorraine Mollohan

    EIN 310976695 · Headquarters: SAINT JOHNS, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. Ohio Association of Polygraph Examiners

    EIN 341819076 · Headquarters: Euclid, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Ohio Association of Probate Judges

    EIN 237423456 · Headquarters: CAMBRIDGE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Ohio Association of Professional Firefighters

    EIN 310559934 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Ohio Association of Public School Employees (Oapse)afscme Local 4

    EIN 311595864 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Ohio Association of Public Treasurers

    EIN 237367195 · Headquarters: Wadsworth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Ohio Association of Railroad Passengers

    EIN 311066182 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Ohio Association of Repossessors

    EIN 922628176 · Headquarters: BROADVIEW HEIGHTS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Ohio Association of School Nurses

    EIN 341222680 · Headquarters: DUBLIN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Ohio Association of School Personnel Administrators

    EIN 311307826 · Headquarters: Dayton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Ohio Association of Secondary School Administrators

    EIN 316049579 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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