Unknown & Unclassified nonprofits in Tennessee

Unknown & Unclassified nonprofits in Tennessee. Browse 9,588 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. Old Bethany Cemetery

    EIN 621185010 · Headquarters: EADS, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Old Dover and Hill Crest Cemetery Trust Co John Darke

    EIN 626180625 · Headquarters: DOVER, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Old Glory Chapter Nsdar

    EIN 237027634 · Headquarters: FRANKLIN, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Old Gray Cemetery Historic & Memorial Assn

    EIN 237426428 · Headquarters: KNOXVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  5. Old Hickory Area Chamber of Commerce

    EIN 621475763 · Headquarters: Old Hickory, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Old Hickory Credit Union

    EIN 626040210 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Old Hickory Employees Council

    EIN 626049053 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  8. Old North Knoxville Inc

    EIN 581365103 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Old Shiloh Cemetery Association Inc

    EIN 621684659 · Headquarters: Bartlett, TN, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  10. Old Smoky Chapter of Nrhs

    EIN 900178558 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Old Smoky Railway Museum Inc

    EIN 626063852 · Headquarters: Knoxville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Old Stone Church Assemblage

    EIN 883664739 · Headquarters: Sparta, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Olford Ministries International Inc

    EIN 237154628 · Headquarters: GERMANTOWN, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. Olive Branch Ministries

    EIN 320302669 · Headquarters: MARYVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  15. Olive Manor

    EIN 954724249 · Headquarters: MEMPHIS, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Oliver and Evelyn Smith Foundation

    EIN 621310938 · Headquarters: KNOXVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Oliver Middle School Pta

    EIN 320123449 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. Oliver Springs Youth Club

    EIN 392803569 · Headquarters: Oliver Springs, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Omega Graduate School Inc

    EIN 621149976 · Headquarters: DAYTON, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Omega Psi Phi Franternity

    EIN 854219569 · Headquarters: OAK RIDGE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Omega Psi Phi Fraternity

    EIN 264176181 · Headquarters: DYERSBURG, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Omega Psi Phi Fraternity

    EIN 621568388 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Omega Psi Phi Fraternity

    EIN 651268759 · Headquarters: CLARKSVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Omicron Kappa Upsilon Honorary Dental Society

    EIN 272628219 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Oncology Nursing Society

    EIN 621250401 · Headquarters: Greeneville, TN, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  26. One Equipped Ministries Inc

    EIN 542186281 · Headquarters: Columbia, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. One on One Aka Changedlivesorg

    EIN 626081698 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  28. One Organized Neighbors of Edgehill Inc

    EIN 621540325 · Headquarters: Nashville, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. One-by-one Help4haiti

    EIN 464829456 · Headquarters: Gallatin, TN, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  30. Oneal Cemetery

    EIN 621183720 · Headquarters: ENVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Ooltewah High School Alumni Association

    EIN 371783242 · Headquarters: OOLTEWAH, TN, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  32. Open Arms Ministry of Campbell Co

    EIN 582093972 · Headquarters: CARYVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Open for Change Inc

    EIN 274234089 · Headquarters: Millington, TN, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  34. Open Stage

    EIN 815227447 · Headquarters: nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  35. Opera Memphis Endowment Foundation

    EIN 581713898 · Headquarters: MEMPHIS, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Operating Engineers 474 Health & Welfare

    EIN 586066594 · Headquarters: GOODLETTSVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Operating Engineers Local 474 Joint Apprenticeship Trust Fund

    EIN 580202020 · Headquarters: GOODLETTSVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Operating Engineers Local No 917 Apprenticeship & Training Fund

    EIN 621023203 · Headquarters: GOODLETTSVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  39. Operation Cityscape Cookeville Tennessee

    EIN 582018118 · Headquarters: Cookeville, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Operation Light Shine

    EIN 852555554 · Headquarters: OLD HICKORY, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. Operation Outreach

    EIN 900775320 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  42. Operation Rocky Top All Veterans Reunion Inc

    EIN 320275763 · Headquarters: jackson, TN, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  43. Operative Plasterers & Cement Masons New Orleans Area Pension Tr

    EIN 726050155 · Headquarters: GOODLETTSVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Opossum Creek Shrine Club

    EIN 621387036 · Headquarters: CHATTANOOGA, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Opportunity Nashville

    EIN 831832932 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Opry Trust Fund Inc

    EIN 626063245 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. OPSIS Education Foundation

    EIN 883807594 · Headquarters: Cordova, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Opticians Association of America

    EIN 135573087 · Headquarters: Lakeland, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Optimist Club of Knoxville

    EIN 626047804 · Headquarters: KNOXVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  50. Optimist International

    EIN 237033632 · Headquarters: Kingsport, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Optimist International

    EIN 510212978 · Headquarters: MARYVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Optimist International

    EIN 621222758 · Headquarters: Kodak, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Optimist International

    EIN 621771882 · Headquarters: Clinton, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Optimist International

    EIN 626042828 · Headquarters: Chattanooga, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Optimist International

    EIN 626047450 · Headquarters: KNOXVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Optimist International

    EIN 626047971 · Headquarters: Kingsport, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Optimist International

    EIN 626048267 · Headquarters: Bolivar, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. Optimist International

    EIN 824936449 · Headquarters: HIXSON, TN, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  59. Optimist International

    EIN 900819281 · Headquarters: EAST RIDGE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Orange Grove Development Inc

    EIN 591735003 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Orange Grove Development No Six Inc

    EIN 621481015 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Orange Grove Development No Three Inc

    EIN 581796624 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Orange Grove Development No Two Inc

    EIN 581623257 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Orange Hill Memorial Association

    EIN 621196450 · Headquarters: Tracy, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Orange Mound Neighborhood & Veterans Association Inc

    EIN 471002280 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Orau Employees Club

    EIN 991332040 · Headquarters: Oak Ridge, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Order of the Amaranth Inc

    EIN 237614597 · Headquarters: Chattanooga, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Order of the Amaranth Inc

    EIN 237614602 · Headquarters: Oak Ridge, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Order of the Amaranth Inc

    EIN 621049937 · Headquarters: Cookeville, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Order of the Amaranth Inc

    EIN 621202008 · Headquarters: Oliver Springs, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Order of the Amaranth Inc

    EIN 621865490 · Headquarters: SPRING HILL, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Order of the Amaranth Sunrise Court

    EIN 204088819 · Headquarters: MOSHEIM, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Order of the White Shrine of Jerusalem

    EIN 237513920 · Headquarters: Spring Hill, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Ore Springs-como Community Fire Dep

    EIN 621306923 · Headquarters: COMO, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Orion & Emma B Hurlbut Tr Fbo Memorial Fd

    EIN 626034546 · Headquarters: CHATTANOOGA, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Orixa Healing Arts Wellness and Spiritual Centre

    EIN 991389693 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Orthopaedic Society Inc Tennessee

    EIN 626075838 · Headquarters: LOUDON, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Orthopaedic Surgical Manufacturers Assoc

    EIN 621733612 · Headquarters: MEMPHIS, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Our Housing Mission Inc

    EIN 621166284 · Headquarters: GERMANTOWN, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Our Kids Inc

    EIN 581830327 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Our Lady of Lourdes St Michael Society of St Vincent De Paul

    EIN 352547904 · Headquarters: Springfield, TN, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  82. Our Lady of the Lake Conference Society of St Vincent Depaul

    EIN 474347027 · Headquarters: HENDERSONVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Our Safe Harbor Church

    EIN 853754441 · Headquarters: Spring Hill, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Outdoor Advertising Association of Tennessee Inc

    EIN 626046531 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Outreach25

    EIN 991833485 · Headquarters: MARYVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Overton County Farm Bureau

    EIN 620529755 · Headquarters: LIVINGSTON, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Overton County Recreation Association Inc

    EIN 620792886 · Headquarters: LIVINGSTON, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Overton County Senior Citizens

    EIN 581710668 · Headquarters: LIVINGSTON, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. Overton High School Ptsa

    EIN 263342015 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  90. Owners Association of Summit Suites Inc

    EIN 208995345 · Headquarters: CHATTANOOGA, TN, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  91. Owners Risk Management Association

    EIN 810820811 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. P Powell Foundation Corp

    EIN 883730978 · Headquarters: Cordova, TN, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  93. Pace Industry Union-management Pension Fund Realty Corporation

    EIN 621662578 · Headquarters: NASHVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  94. Pack 3477 Cub Scouts

    EIN 364780928 · Headquarters: Cleveland, TN, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  95. Pagan Pride Project Inc

    EIN 460623529 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  96. Page Boys Hoops Club Inc

    EIN 933502879 · Headquarters: Franklin, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Paint Rock Volunteer Fire Dept

    EIN 621258208 · Headquarters: Helenwood, TN, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  98. Painter Creek Lake Club Inc

    EIN 621592513 · Headquarters: Bristol, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Palmer Center Foundation Inc

    EIN 581969597 · Headquarters: KINGSPORT, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  100. Palmer Shelter Perpetual Care Cemetery Trust Fund

    EIN 621136492 · Headquarters: Franklin, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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