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. Oak Hills Water Supply Corporation

    EIN 741735206 · Headquarters: FLORESVILLE, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Oak Hills Womens Golf Association

    EIN 061058234 · Headquarters: Norwalk, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Oak Hollow Boat Dock Association

    EIN 260764373 · Headquarters: Shell Knob, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Oak Hollow Neighborhood Association

    EIN 752187804 · Headquarters: Grand Prairie, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  5. Oak Island Beachfront Owners Association Inc

    EIN 922116881 · Headquarters: Oak Island, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Oak Island Chapter 2452 Women of the Moose

    EIN 901178250 · Headquarters: Oak Island, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Oak Island Elks Lodge #2769

    EIN 561734992 · Headquarters: OAK ISLAND, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Oak Island Moose Lodge #2059 Loyal Order of Moose

    EIN 560863399 · Headquarters: Southport, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Oak Island Senior Citizens Inc

    EIN 581364886 · Headquarters: Oak Island, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Oak Knoll Cemetery Association

    EIN 740812952 · Headquarters: Bellville, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. Oak Knoll District of Napa Valley Association

    EIN 202453425 · Headquarters: Napa, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Oak Knoll Memorial Park Inc

    EIN 362302304 · Headquarters: Sterling, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Oak Knoll Memorial Park Inc

    EIN 366060578 · Headquarters: STERLING, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Oak Knoll Neighborhood Improvement Association Inc

    EIN 824928255 · Headquarters: Oakland, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Oak Knoll of San Jose Homeowners Association

    EIN 770153179 · Headquarters: San Jose, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Oak Knoll School Parent-teacher Organization Inc

    EIN 995129371 · Headquarters: Cary, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Oak Knolls Haven Inc

    EIN 953497055 · Headquarters: DUARTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  18. Oak Lake Art Center

    EIN 953587026 · Headquarters: Valley Center, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Oak Lake Golf Course Inc

    EIN 411934144 · Headquarters: ERSKINE, MN, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  20. Oak Landing Homeowners Assoc Inc C/o J C Property Services Inc

    EIN 521266986 · Headquarters: FALLSTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  21. Oak Lane Child Care Center of Pleasantville Inc

    EIN 133091825 · Headquarters: CHAPPAQUA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Oak Lane Community Action Assn

    EIN 232096789 · Headquarters: PHILADELPHIA, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Oak Lane Tree Tenders

    EIN 462478419 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  24. Oak Lawn Baseball

    EIN 366145152 · Headquarters: OAK LAWN, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  25. Oak Lawn Cemetary Inc

    EIN 546059060 · Headquarters: Bridgewater, VA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  26. Oak Lawn Cemetery

    EIN 520432920 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Oak Lawn Cemetery Association

    EIN 060688985 · Headquarters: FAIRFIELD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Oak Lawn Cemetery Association

    EIN 240677920 · Headquarters: HANOVER TOWNSHIP, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Oak Lawn Chamber of Commerce

    EIN 362852308 · Headquarters: Oak Lawn, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Oak Lawn Community Center

    EIN 731476474 · Headquarters: Marlow, OK, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Oak Lawn Elks Lodge #2254

    EIN 362526798 · Headquarters: Chicago Ridge, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Oak Lawn Fire Department Club

    EIN 366093891 · Headquarters: OAK LAWN, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Oak Lawn Hometown School District 123 Educational Foundation

    EIN 363807391 · Headquarters: Oak Lawn, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Oak Lawn Police Department Club

    EIN 366108755 · Headquarters: Oak Lawn, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Oak Lawn Professional Firefighters Assoc

    EIN 237166031 · Headquarters: OAK LAWN, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. Oak Lawn Senior Citizens Council

    EIN 237325135 · Headquarters: OAK LAWN, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Oak Leaf Country Club

    EIN 420791875 · Headquarters: REINBECK, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Oak Leaf Lodge 1583

    EIN 562087126 · Headquarters: Edenton, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Oak Leaf Saving Club

    EIN 471048150 · Headquarters: freeport, ME, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  40. Oak Leaf Trail Water

    EIN 923836857 · Headquarters: Billings, MO, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Oak Level Ruritan Club Incorporated

    EIN 208760553 · Headquarters: Bassett, VA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Oak Leyden Developmental Services Inc

    EIN 237380622 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Oak Manor Inc

    EIN 237305702 · Headquarters: Saint Marys, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Oak Meadow Early Childhood Center

    EIN 431359603 · Headquarters: Independence, MO, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  45. Oak Meadow Montessori School Inc

    EIN 042629516 · Headquarters: LITTLETON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Oak Meadows Homeowners Association

    EIN 271241384 · Headquarters: West Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Oak Meadows Property Owners

    EIN 911469107 · Headquarters: Oakville, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Oak Meyer Gardens Homes Association

    EIN 436049375 · Headquarters: Prairie Village, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  49. Oak Middle School PTA

    EIN 330666484 · Headquarters: LOS ALAMITOS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Oak Mountain Lacrosse Association

    EIN 824853495 · Headquarters: BIRMINGHAM, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Oak Mountain Runners Club Inc

    EIN 270557828 · Headquarters: BIRMINGHAM, AL, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  52. Oak Orchard Riverdale American Legion Post 28 Inc

    EIN 510271790 · Headquarters: MILLSBORO, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  53. Oak Orchard Yacht Club Inc

    EIN 237132699 · Headquarters: ALBION, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Oak Park Area Arts Council

    EIN 362893920 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Oak Park Area Association of Realtors

    EIN 361569400 · Headquarters: Oak Park, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Oak Park Art League

    EIN 366091119 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Oak Park Arts District Business Assoc

    EIN 208203107 · Headquarters: OAK PARK, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. Oak Park Athletic Club

    EIN 992258227 · Headquarters: Oak Park, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Oak Park Cemetery Association

    EIN 250698660 · Headquarters: New Castle, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Oak Park Classified Association

    EIN 863399523 · Headquarters: Simi Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Oak Park Club Inc

    EIN 560934231 · Headquarters: Raleigh, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Oak Park Concert Chorale Inc

    EIN 363137689 · Headquarters: Oak Park, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Oak Park Country Club

    EIN 361569160 · Headquarters: RIVER GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Oak Park Economic Development Corp

    EIN 362788088 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  65. Oak Park Education Foundation

    EIN 363488162 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Oak Park Festival Theatre

    EIN 362868677 · Headquarters: Oak Park, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Oak Park Fire Fighters Association

    EIN 237303721 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  68. Oak Park High School Class of 1959

    EIN 464918294 · Headquarters: RICHTON, MS, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  69. Oak Park Homebrewers

    EIN 394458349 · Headquarters: Oak Park, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Oak Park Homes Association

    EIN 900786914 · Headquarters: OVERLAND PARK, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Oak Park Housing Preservation Corporation

    EIN 223200986 · Headquarters: Lewiston, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Oak Park Plaza Inc Oak Park Plaza

    EIN 720863839 · Headquarters: ALEXANDRIA, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Oak Park Preschool Inc

    EIN 942538801 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Oak Park Recorder School Inc

    EIN 362961725 · Headquarters: RIVER FOREST, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Oak Park Residence Corporation

    EIN 362666771 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Oak Park River Forest Chamber of Commerce

    EIN 361569110 · Headquarters: Oak Park, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Oak Park River Forest Community of Congregations

    EIN 362317606 · Headquarters: River Forest, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Oak Park River Forest Concert Tour Assoc D/b/a Applause

    EIN 366215466 · Headquarters: OAK PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  79. Oak Park Society of Model Engineers

    EIN 261974433 · Headquarters: Oak Park, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Oak Park Sportsmens Club

    EIN 366127570 · Headquarters: Plainfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Oak Park Teachers Association

    EIN 770469986 · Headquarters: OAK PARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Oak Park Tennis Center

    EIN 361569507 · Headquarters: RIVER FOREST, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Oak Plains Masonic Building Association

    EIN 941599748 · Headquarters: Rio Linda, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Oak Point Community Association

    EIN 161338089 · Headquarters: Hammond, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Oak Point Homeowners Scholarship Fund Inc

    EIN 853931003 · Headquarters: Middleboro, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Oak Ridge Air Park Homeowners Association Inc

    EIN 920480326 · Headquarters: Mountain Grove, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Oak Ridge Archery Club Inc

    EIN 351892259 · Headquarters: Wheatfield, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Oak Ridge Associated Universities

    EIN 620476816 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  89. Oak Ridge Breakfast Rotary Club

    EIN 621113803 · Headquarters: Oak Ridge, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Oak Ridge Cemetary

    EIN 311111674 · Headquarters: Nashville, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Oak Ridge Cemetery

    EIN 411463979 · Headquarters: Alexandria, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Oak Ridge Cemetery Association

    EIN 477262476 · Headquarters: WELLSVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Oak Ridge Cemetery Association

    EIN 620583181 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Oak Ridge Cemetery Foundation

    EIN 992868500 · Headquarters: Honey Grove, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Oak Ridge Chamber of Commerce

    EIN 620572006 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Oak Ridge Civic Ballet Association Inc

    EIN 620719862 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Oak Ridge Civic Music Association Inc

    EIN 620649604 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Oak Ridge Community Band Inc

    EIN 620983109 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. Oak Ridge Country Club

    EIN 410453357 · Headquarters: HOPKINS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Oak Ridge Country Club Inc

    EIN 620449072 · Headquarters: OAK RIDGE, TN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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