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. Ottawa Friendship House Work Activity Center Inc

    EIN 362600477 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Ottawa Glandorf Athletic Boosters

    EIN 341415911 · Headquarters: OTTAWA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Ottawa Hills Boosters Club

    EIN 237425317 · Headquarters: OTTAWA HILLS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Ottawa Hills Community and School Foundation Inc

    EIN 341476780 · Headquarters: Ottawa Hills, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Ottawa Hills Futbol Club

    EIN 461007935 · Headquarters: Ottawa Hills, OH, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  6. Ottawa Hills Neighborhood Association

    EIN 270273523 · Headquarters: GRAND RAPIDS, MI, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  7. Ottawa Hills Professional Firefighters Local 1233

    EIN 273400670 · Headquarters: Ottawa Hills, OH, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  8. Ottawa Hiway Credit Union

    EIN 362512001 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  9. Ottawa Interpretive Association

    EIN 383117657 · Headquarters: WATERSMEET, MI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Ottawa Jewish Cemetery

    EIN 366052977 · Headquarters: Ottawa, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Ottawa Lodge 960 Loyal Order of Moose

    EIN 362032536 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Ottawa Masonic Temple Association

    EIN 480360756 · Headquarters: OTTAWA, KS, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  13. Ottawa Regional Hospital Auxiliary

    EIN 363854788 · Headquarters: Peoria, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  14. Ottawa Residential Services Inc

    EIN 341195813 · Headquarters: PORT CLINTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Ottawa River Beagle Club Inc

    EIN 346555684 · Headquarters: DEFIANCE, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  16. Ottawa River Yacht Club

    EIN 341007496 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  17. Ottawa Senior Citizens Association

    EIN 237296455 · Headquarters: OTTAWA, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Ottawa Shooting Club

    EIN 340445940 · Headquarters: GATES MILL, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Ottawa Township High School

    EIN 363914588 · Headquarters: Ottawa, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Ottawa Visitors Center

    EIN 364082603 · Headquarters: OTTAWA, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. Ottawa Ymca Foundation

    EIN 872963366 · Headquarters: Ottawa, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  22. Ottawa-glandorf Classroom Teachers Association

    EIN 341291344 · Headquarters: Ottawa, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  23. Ottd Organization

    EIN 931343088 · Headquarters: Lake Forest, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. Ottenheimer Brothers Foundation

    EIN 716059988 · Headquarters: LITTLE ROCK, AR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. Otter Country Trail Association

    EIN 411616656 · Headquarters: FERGUS FALLS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Otter Cove Association Inc

    EIN 066079283 · Headquarters: Old Saybrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Otter Cove Childrens Museum

    EIN 833891315 · Headquarters: FERGUS FALLS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Otter Creek Audubon Society

    EIN 510144483 · Headquarters: Middlebury, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Otter Creek Child Center Inc

    EIN 222564467 · Headquarters: Middlebury, VT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Otter Creek Historical Society

    EIN 363253751 · Headquarters: Durand, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Otter Creek Home and School Club

    EIN 263640252 · Headquarters: Georgetown, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. Otter Creek Lodge Fraternal Order of Police Inc

    EIN 611348220 · Headquarters: BRANDENBURG, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Otter Creek Management Corp

    EIN 351092608 · Headquarters: Columbus, IN, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  34. Otter Creek Property Owners Association Inc

    EIN 205349632 · Headquarters: Tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  35. Otter Creek Reservoir Company

    EIN 870224445 · Headquarters: MONROE, UT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Otter Creek Sportsmans Club

    EIN 426062240 · Headquarters: HIAWATHA, IA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  37. Otter Creek Volunteer Fire Department

    EIN 331068263 · Headquarters: Geyser, MT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Otter Island Foundation

    EIN 760421104 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  39. Otter Lake Elementary School PTA

    EIN 411617524 · Headquarters: White Bear Lake, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Otter Play Inc

    EIN 870640812 · Headquarters: Springdale, UT, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  41. Otter Run Fish and Game Club Inc

    EIN 232222173 · Headquarters: AUDUBON, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Otter Tail Agricultural Society & Fair Assoc

    EIN 410990253 · Headquarters: FERGUS FALLS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Otter Tail County Historical Society

    EIN 416038367 · Headquarters: FERGUS FALLS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Otter Tail Credit Union

    EIN 410790551 · Headquarters: Fergus Falls, MN, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  45. Otter Tail Lakes Country Association

    EIN 812413340 · Headquarters: FERGUS FALLS, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Otter Tail Property Owners Association

    EIN 411470046 · Headquarters: BATTLE LAKE, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Otter Valley Aquarium Society Inc

    EIN 465376507 · Headquarters: Pittsford, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Otter Valley Football Club Ltd

    EIN 030348663 · Headquarters: Brandon, VT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Otter Valley Teachers Association

    EIN 371586189 · Headquarters: Brandon, VT, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  50. Otterbein Cemetery Fund

    EIN 383806395 · Headquarters: Glenville, WV, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  51. Otterbein Memorial Cemetery Assn

    EIN 550463685 · Headquarters: Millwood, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Otterbein Portage Valley Inc

    EIN 341193296 · Headquarters: PEMBERVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Ottercare Community Initiative

    EIN 332605485 · Headquarters: FERGUS FALLS, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Ottertail Firemens Relief Associati

    EIN 411804887 · Headquarters: OTTERTAIL, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ottertail Rod & Gun Club Inc

    EIN 363365791 · Headquarters: OTTERTAIL, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Otterville Community Teachers and Staff Association

    EIN 831582562 · Headquarters: Otterville, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Otterville Multi-purpose Senior Center Inc

    EIN 431261259 · Headquarters: Otterville, MO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. Ottilie P Brown Tua

    EIN 046139072 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Ottis UW Ken FBO DWU Biology Dept

    EIN 206991787 · Headquarters: Sioux Falls, SD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  60. Otto & Edna Neely Foundation

    EIN 860581770 · Headquarters: Gilbert, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  61. Otto & Fran Walter Foundation Inc

    EIN 131625529 · Headquarters: BOOTHBAY HARBOR, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Otto a Shults Foundation

    EIN 166042842 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. Otto C Epp Fund B Charitable Tr

    EIN 316365704 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Otto Community Building

    EIN 392061221 · Headquarters: Spencer, WV, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  65. Otto H York Foundation Inc

    EIN 225154083 · Headquarters: Providence, RI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  66. Otto Kaiser Memorial Hospital Auxiliary

    EIN 510151917 · Headquarters: KENEDY, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Otto M Burkhardt Trust

    EIN 596208708 · Headquarters: FORT LAUDERDALE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  68. Otto M Walker Post No 49 Inc

    EIN 264576988 · Headquarters: MONTICELLO, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Otto Ruth Varner-seneca Valley High

    EIN 256292867 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  70. Otto Schroedel Foundation

    EIN 521252325 · Headquarters: REISTERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  71. Otto Schwarz Memorial Graduate Scholarship

    EIN 886062233 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  72. Otto Sussman Trust Ua 5Th Para 1 Uwo

    EIN 136075849 · Headquarters: JERICHO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  73. Otto T Johnson Trust Uw Xxx-xx-xxxx

    EIN 036016815 · Headquarters: MANCHESTER, NH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. Otto Trinklein Educational Trust

    EIN 386040607 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Otto Trust Fbo Grace Reformed Church

    EIN 256283004 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. Otto Villwock Medical Educational Scholarship

    EIN 510172011 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  77. Otto Volunteer Fire Company

    EIN 161002775 · Headquarters: Otto, NY, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  78. Otto Water System

    EIN 372116947 · Headquarters: Lakebay, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Otto Weisse Tr-sheb Falls

    EIN 396038922 · Headquarters: EAGAN, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Otto's Mills Fish & Game Club Inc C/o Tyler W Corcoran

    EIN 166041580 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Ottoman Studies Foundation Inc

    EIN 043319132 · Headquarters: FATIH ISTANBUL TURKEY, TU · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Ottoville Lions Club International Association of Lions

    EIN 237310882 · Headquarters: OTTOVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Ottoville Local Education Association

    EIN 341249244 · Headquarters: Ottoville, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Ottumwa Area Chamber of Commerce

    EIN 420452840 · Headquarters: OTTUMWA, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Ottumwa Civic Music Association

    EIN 237119079 · Headquarters: OTTUMWA, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Ottumwa Education Association

    EIN 421231864 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Ottumwa Habitat for Humanity

    EIN 421358343 · Headquarters: OTTUMWA, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Ottumwa Kitten Project

    EIN 931396330 · Headquarters: OTTUMWA, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Ottumwa Pro Balloon Race Committee Inc

    EIN 421391285 · Headquarters: Agency, IA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  90. Ottumwa Quilters Guild

    EIN 371587138 · Headquarters: Ottumwa, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Ottumwa Tennis Club Incorporated

    EIN 901179861 · Headquarters: Ottumwa, IA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  92. Ottumwa YMCA

    EIN 420725202 · Headquarters: Ottumwa, IA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Ottumwa Yorkrite Bodies

    EIN 421455101 · Headquarters: OTTUMWA, IA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  94. Otu Ifedinma Cultural Dance

    EIN 760541794 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Otu Ndi Nze Na Ozo USA

    EIN 992507293 · Headquarters: COPPELL, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Otuckalofa Rural Water Association Inc

    EIN 640692064 · Headquarters: WATER VALLEY, MS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Otus Project Inc

    EIN 334675112 · Headquarters: Vienna, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Otway Volunteer Fire & Rescue

    EIN 561616900 · Headquarters: Beaufort, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Otwell Water Corporation

    EIN 351139828 · Headquarters: OTWELL, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Otz Telephone Cooperative Inc

    EIN 237448060 · Headquarters: KOTZEBUE, AK, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

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