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 Conference of Teamsters and Industry Health and Welfare Trust

    EIN 316029682 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Ohio Conference of Teamsters Sports Committee Inc

    EIN 510135697 · Headquarters: BROOK PARK, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  3. Ohio Congress of Parents & Teac

    EIN 824972290 · Headquarters: CANFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Ohio Congress of Parents & Teachers Association Inc

    EIN 813525337 · Headquarters: STRONGSVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Ohio Congress of Parents and Teachers Association Inc

    EIN 844296281 · Headquarters: Cleveland Heights, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Ohio Congress of Parents Teachers

    EIN 811254425 · Headquarters: BEDFORD, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  7. Ohio Congress of Parents Teachers

    EIN 822839729 · Headquarters: CINCINNATI, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  8. Ohio Conservative Restoration Project

    EIN 871142309 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  9. Ohio Conservatives for Bail Reform

    EIN 861564211 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  10. Ohio Conservatives for Land and Energy Freedom

    EIN 834193327 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  11. Ohio Constitutional Fund

    EIN 871387625 · Headquarters: Groveport, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Ohio Contemporary Ballet

    EIN 341645238 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Ohio Contractors Association

    EIN 314269300 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Ohio Cooperative Eduaction Association

    EIN 341400941 · Headquarters: CUYAHOGA FLS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Ohio Corn and Wheat Grower's Association

    EIN 310986033 · Headquarters: DELAWARE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Ohio Corn Marketing Program

    EIN 341610319 · Headquarters: DELAWARE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Ohio Council for Children

    EIN 274681614 · Headquarters: WATERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  18. Ohio Council for Home Care & Hospice

    EIN 237299675 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Ohio Council No 92 Royal and Select Masons

    EIN 203863356 · Headquarters: Ironton, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  20. Ohio Council of Chapters Moaa

    EIN 743138332 · Headquarters: westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Ohio Council of County Officials

    EIN 822818696 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Ohio Council of Criminal Justice Ed Ucation

    EIN 311012090 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  23. Ohio Council of Fraternal and Service Organizations

    EIN 310970253 · Headquarters: Lexington, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Ohio Council of Information and Referral Providers Inc

    EIN 310946727 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Ohio Council of Massage Therapy Schools Inc

    EIN 341903498 · Headquarters: Canton, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  26. Ohio Council of Retail Merchants

    EIN 314269320 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  27. Ohio Council of Speech and Hearing Executives

    EIN 311279439 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Ohio Council of Teachers of English Language Arts

    EIN 310901978 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  29. Ohio Council of the Blind Inc

    EIN 346049584 · Headquarters: Kettering, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Ohio Council of Trout Unlimited

    EIN 911928278 · Headquarters: LAKEWOOD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Ohio Council on Welfare Fraud Incorporated

    EIN 311223486 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Ohio Counseling Association

    EIN 341296830 · Headquarters: BROADVIEW HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Ohio County 4-H Classy Clovers

    EIN 923633571 · Headquarters: Rising Sun, IN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Ohio County Association of Retired School Employees

    EIN 271285396 · Headquarters: Saint Clairsville, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  35. Ohio County City Information Technology Association

    EIN 861571167 · Headquarters: Willoughby Hills, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Ohio County Farm Bureau Federation

    EIN 610602104 · Headquarters: HARTFORD, KY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Ohio County Ffa Alumni

    EIN 473424854 · Headquarters: Beaver Dam, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Ohio County Historical Society Inc

    EIN 237078487 · Headquarters: RISING SUN, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Ohio County Homemakers

    EIN 611618112 · Headquarters: Hartford, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Ohio County Medical Society Inc

    EIN 550742547 · Headquarters: WHEELING, WV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Ohio County Rescue Services Inc

    EIN 351358865 · Headquarters: RISING SUN, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Ohio County Rotary Club

    EIN 262263341 · Headquarters: Wheeling, WV, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  43. Ohio County School Treasurers Association

    EIN 311327715 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Ohio County Virtual Lions Club

    EIN 844362918 · Headquarters: Wheeling, WV, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  45. Ohio Court Reporters Association

    EIN 310889749 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Ohio Cpa Foundation

    EIN 316052485 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Ohio Credit Union League

    EIN 314359680 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Ohio Credit Union League Local Chapters Group Return

    EIN 311105890 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Ohio Cutting Horse Association

    EIN 311198075 · Headquarters: Grafton, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Ohio Dairy & Holstein Education Inc

    EIN 341695430 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Ohio Dairy Producers Association

    EIN 310394139 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Ohio Daylily Society

    EIN 341457962 · Headquarters: Olmsted Township, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Ohio Delta Company of Phi Kappa Psi Fraternity

    EIN 316052859 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Ohio Dental Association

    EIN 237297933 · Headquarters: Tipp City, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ohio Dental Association

    EIN 237297934 · Headquarters: Zanesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Ohio Dental Association

    EIN 237297935 · Headquarters: Chillicothe, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Ohio Dental Association

    EIN 237297936 · Headquarters: lima, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  58. Ohio Dental Association

    EIN 237297937 · Headquarters: South Point, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Ohio Dental Association

    EIN 237297939 · Headquarters: New Philadelphia, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Ohio Dental Association

    EIN 237297940 · Headquarters: Danville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Ohio Dental Association

    EIN 237297941 · Headquarters: Defiance, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. Ohio Dental Association

    EIN 237297942 · Headquarters: Springfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Ohio Dental Association

    EIN 237297943 · Headquarters: Lorain, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Ohio Dental Association

    EIN 237297945 · Headquarters: LANCASTER, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ohio Dental Association

    EIN 237297946 · Headquarters: Steubenville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Ohio Dental Association

    EIN 237297947 · Headquarters: Ontario, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ohio Dental Association

    EIN 237297948 · Headquarters: Geneva, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ohio Dental Association

    EIN 237337499 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ohio Dental Association

    EIN 314361266 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Ohio Dental Association

    EIN 341414454 · Headquarters: Valley City, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Ohio Dental Association Corydon Palmer Dental Society

    EIN 346544900 · Headquarters: CORTLAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Ohio Dental Association Toledo

    EIN 346529278 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Ohio Dental Association- Dayton Soc

    EIN 316033219 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Ohio Dental Hygienists' Association

    EIN 237077368 · Headquarters: PAINESVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Ohio Dental Society of Anesthesiology Inc

    EIN 311018913 · Headquarters: WESTERVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Ohio Department of Amvets Service Foundation

    EIN 340943286 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Ohio Dermatological Association

    EIN 311242595 · Headquarters: DALTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Ohio Design Professionals & Code Analysts Inc

    EIN 311249425 · Headquarters: BELLVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  79. Ohio Dietary Managers Association

    EIN 237239952 · Headquarters: Danville, OH, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  80. Ohio District 08

    EIN 364648652 · Headquarters: Eaton, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Ohio District 5 Area Agency on Aging Inc

    EIN 341617183 · Headquarters: ONTARIO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Ohio District Kiwanis Foundation Inc

    EIN 311072405 · Headquarters: CIRCLEVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  83. Ohio Ecological Food and Farm Certification

    EIN 341324238 · Headquarters: Worthington, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Ohio Education Association

    EIN 314269414 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Ohio Education Service Center Assoc

    EIN 311175823 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Ohio Educational Television Stations Inc

    EIN 311109075 · Headquarters: KENT, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Ohio Electric Utility Institute C/o Maria Haberman

    EIN 314380459 · Headquarters: COLUMBUS, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  88. Ohio Emergency Nurses Association

    EIN 341533355 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Ohio Energy and Convenience Association

    EIN 310965343 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Ohio Energy Leadership Council C/o Meyers Roman Friedberg & Lewis

    EIN 311366474 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Ohio Environmental Health Association Inc

    EIN 316036281 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Ohio Environmental Services Industries

    EIN 300150213 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. Ohio Epsilon Alumni Association

    EIN 237434209 · Headquarters: Westerville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Ohio Epsilon Company

    EIN 346532037 · Headquarters: Solon, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Ohio Equal Rights

    EIN 992978664 · Headquarters: Chagrin Falls, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Ohio Equal Rights Education Advocates

    EIN 392992851 · Headquarters: Chagrin Falls, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ohio Eta Chapter of Sigma Phi Epsilon

    EIN 850950049 · Headquarters: OXFORD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Ohio Ethanol Producers Association Inc

    EIN 270350993 · Headquarters: LEIPSIC, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Ohio Fair Managers Association

    EIN 341721710 · Headquarters: Stow, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Ohio Fair Services Inc

    EIN 311211695 · Headquarters: AMANDA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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