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 State University

    EIN 991056912 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Ohio State University

    EIN 991057018 · Headquarters: Painesville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Ohio State University

    EIN 991059017 · Headquarters: MANSFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Ohio State University

    EIN 991090665 · Headquarters: Owensville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Ohio State University

    EIN 991120729 · Headquarters: TIFFIN, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Ohio State University

    EIN 991143488 · Headquarters: Portsmouth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Ohio State University

    EIN 991147954 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Ohio State University

    EIN 991193650 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Ohio State University

    EIN 991281687 · Headquarters: Bowling Green, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Ohio State University

    EIN 991364669 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Ohio State University

    EIN 991405279 · Headquarters: Bowling Green, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Ohio State University

    EIN 991409237 · Headquarters: Owensville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Ohio State University

    EIN 991487466 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Ohio State University

    EIN 991501756 · Headquarters: Cortland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Ohio State University

    EIN 991525155 · Headquarters: Hinckley, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Ohio State University

    EIN 991626074 · Headquarters: New Plymouth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Ohio State University

    EIN 991719520 · Headquarters: Fremont, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Ohio State University

    EIN 991805941 · Headquarters: Langsville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Ohio State University

    EIN 991806734 · Headquarters: Ravenna, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Ohio State University

    EIN 991858654 · Headquarters: Mount Gilead, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Ohio State University

    EIN 991863836 · Headquarters: Bowling Green, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Ohio State University

    EIN 991867979 · Headquarters: Lebanon, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Ohio State University

    EIN 991889307 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Ohio State University

    EIN 992079901 · Headquarters: Urbana, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Ohio State University

    EIN 992103056 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Ohio State University

    EIN 992339061 · Headquarters: Mount Gilead, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Ohio State University

    EIN 992470124 · Headquarters: Urbana, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Ohio State University

    EIN 992629256 · Headquarters: Bellefontaine, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Ohio State University

    EIN 992688155 · Headquarters: Marion, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Ohio State University

    EIN 992690183 · Headquarters: Portsmouth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Ohio State University

    EIN 992743429 · Headquarters: Portsmouth, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Ohio State University

    EIN 992970535 · Headquarters: Ravenna, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Ohio State University

    EIN 993020559 · Headquarters: Mount Gilead, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Ohio State University

    EIN 993034776 · Headquarters: Wauseon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Ohio State University

    EIN 993035018 · Headquarters: Wauseon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Ohio State University

    EIN 993157702 · Headquarters: Wilkesville, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Ohio State University

    EIN 993177355 · Headquarters: Louisville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Ohio State University

    EIN 993244143 · Headquarters: Bowling Green, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Ohio State University

    EIN 993319776 · Headquarters: Newark, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Ohio State University

    EIN 993388400 · Headquarters: Ravenna, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Ohio State University

    EIN 993415269 · Headquarters: Athens, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Ohio State University

    EIN 993430040 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Ohio State University

    EIN 994844511 · Headquarters: MANSFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Ohio State University

    EIN 994897993 · Headquarters: Greenville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Ohio State University Alumn Club of Clinton County

    EIN 311167253 · Headquarters: Wilmington, OH, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  46. Ohio State University Alumni Association

    EIN 621728045 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. Ohio State University Alumni Association Inc

    EIN 010852644 · Headquarters: Jenison, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Ohio State University Alumni Association Inc

    EIN 030386610 · Headquarters: Portland, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Ohio State University Alumni Association Inc

    EIN 134208716 · Headquarters: Webster Groves, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Ohio State University Alumni Association Inc

    EIN 232672953 · Headquarters: Elkins Park, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Ohio State University Alumni Association Inc

    EIN 251739284 · Headquarters: Palmyra, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Ohio State University Alumni Association Inc

    EIN 260400985 · Headquarters: Biltmore Lake, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Ohio State University Alumni Association Inc

    EIN 300630745 · Headquarters: San Ramon, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Ohio State University Alumni Association Inc

    EIN 311106936 · Headquarters: Hilliard, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ohio State University Alumni Association Inc

    EIN 311161944 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Ohio State University Alumni Association Inc

    EIN 311165756 · Headquarters: Bradford, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Ohio State University Alumni Association Inc

    EIN 311407805 · Headquarters: Pickerington, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Ohio State University Alumni Association Inc

    EIN 311484756 · Headquarters: Fort Mill, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Ohio State University Alumni Association Inc

    EIN 311484783 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Ohio State University Alumni Association Inc

    EIN 311484795 · Headquarters: tarpon springs, FL, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  61. Ohio State University Alumni Association Inc

    EIN 311484803 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Ohio State University Alumni Association Inc

    EIN 331044884 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Ohio State University Alumni Association Inc

    EIN 341373937 · Headquarters: Medina, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Ohio State University Alumni Association Inc

    EIN 341611129 · Headquarters: Martins Ferry, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Ohio State University Alumni Association Inc

    EIN 341772410 · Headquarters: zanesfield, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Ohio State University Alumni Association Inc

    EIN 341829069 · Headquarters: Uhrichsville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Ohio State University Alumni Association Inc

    EIN 341846152 · Headquarters: BUCYRUS, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Ohio State University Alumni Association Inc

    EIN 383237254 · Headquarters: Keego Harbor, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Ohio State University Alumni Association Inc

    EIN 383756273 · Headquarters: Kailua, HI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Ohio State University Alumni Association Inc

    EIN 453339486 · Headquarters: Delaware, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Ohio State University Alumni Association Inc

    EIN 465412930 · Headquarters: Columbiana, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Ohio State University Alumni Association Inc

    EIN 593230687 · Headquarters: Saint Augustine, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Ohio State University Alumni Association Inc

    EIN 611313353 · Headquarters: Prospect, KY, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  74. Ohio State University Alumni Association Inc

    EIN 650196563 · Headquarters: Fort Myers, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Ohio State University Alumni Association Inc

    EIN 813742776 · Headquarters: Vero Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Ohio State University Alumni Association Inc

    EIN 814528313 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  77. Ohio State University Alumni Association Inc

    EIN 821486223 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Ohio State University Alumni Association Inc

    EIN 824555971 · Headquarters: Powell, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Ohio State University Alumni Association Inc

    EIN 911537025 · Headquarters: Kirkland, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Ohio State University Alumni Association Inc

    EIN 911825242 · Headquarters: Rancho Santa Margarita, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Ohio State University Alumni Association Inc

    EIN 911825346 · Headquarters: Charleston, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Ohio State University Alumni Club of Ashland Co

    EIN 833749174 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  83. Ohio State University Alumni Club of New Mexico

    EIN 270735523 · Headquarters: Los Lunas, NM, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Ohio State University Alumni Club of Wood County

    EIN 921002644 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Ohio State University Club of Denver Inc

    EIN 841239291 · Headquarters: Lakewood, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Ohio State University College of Pharmacy-pharmacy Council

    EIN 471045636 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Ohio State University Livestock Legacy 4-H Club of Wayne

    EIN 991435689 · Headquarters: Wooster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Ohio State University Nurses Organization

    EIN 311437171 · Headquarters: Columbus, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Ohio State University PAD Prelaw Chapter

    EIN 943103869 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Ohio State University Retirees Association

    EIN 813554036 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Ohio State University Student Chapter

    EIN 237035713 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  92. Ohio State University The

    EIN 873188253 · Headquarters: Oak Harbor, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Ohio State University The

    EIN 874062968 · Headquarters: Sandusky, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Ohio State University The

    EIN 881123072 · Headquarters: Conneaut, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Ohio State University The

    EIN 884146673 · Headquarters: Pomeroy, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Ohio State University The

    EIN 884238964 · Headquarters: Wauseon, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ohio State University The

    EIN 884386149 · Headquarters: Gallipolis, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Ohio State University The

    EIN 921289586 · Headquarters: Xenia, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Ohio State University The

    EIN 922348477 · Headquarters: Lancaster, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Ohio State University The

    EIN 922361458 · Headquarters: Hamilton, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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