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. Old Oak Brook Polo Club Inc

    EIN 611471079 · Headquarters: BURR RIDGE, IL, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  2. Old Oaks Country Club Inc

    EIN 131723545 · Headquarters: PURCHASE, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  3. Old Oaks Foundation Inc

    EIN 133277022 · Headquarters: PURCHASE, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  4. Old Oakwood Cemetery Association

    EIN 751752249 · Headquarters: Jefferson, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Old Omaha Association

    EIN 470609521 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Old Opera House Theatre Company Inc

    EIN 237321992 · Headquarters: CHARLES TOWN, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Old Orchard Beach Chamber of Commerce

    EIN 010212181 · Headquarters: OLD ORCHARD BEACH, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Old Orchard Beach Vfw Post 7997

    EIN 010344591 · Headquarters: OLD ORCHARD BEACH, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Old Orchard Estates Homeowners Association

    EIN 462284480 · Headquarters: GRAND JUNCTION, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Old Orchard Swim Club

    EIN 221812202 · Headquarters: Cherry Hill, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Old Order Amish Aid Society

    EIN 921492043 · Headquarters: Ovid, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Old Ore Creek Hoa

    EIN 934768261 · Headquarters: Fenton, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Old Orland Heritage Foundation

    EIN 363895725 · Headquarters: ORLAND PARK, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  14. Old Palestine Cemetery Endowment Fund

    EIN 510192385 · Headquarters: ALTO, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Old Perry Cemetery Association

    EIN 742342764 · Headquarters: Waco, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Old Petersburg Addison Historical Society

    EIN 251637241 · Headquarters: ADDISON, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Old Pike Country Club

    EIN 440643220 · Headquarters: KANSAS CITY, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Old Pine Grove

    EIN 800641691 · Headquarters: Winchester, KY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  19. Old Pleasant Hill Cemetery Association Inc

    EIN 237175517 · Headquarters: Princeton, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Old Pleasant Vallley Cemetery Near Buffalo Springs Texas

    EIN 752056696 · Headquarters: BOWIE, TX, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  21. Old Point Comfort Yacht Club

    EIN 541426305 · Headquarters: Hampton, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Old Pros

    EIN 830406456 · Headquarters: Laguna Hills, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  23. Old Providence Cemetery Inc

    EIN 630877727 · Headquarters: Luverne, AL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. Old Pucks Hockey Club Inc

    EIN 112798085 · Headquarters: BALDWIN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Old Pueblo Dog Training Club Inc

    EIN 866052589 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Old Pueblo Lapidary Club Inc

    EIN 860274766 · Headquarters: Tucson, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. Old Pueblo Playwrights

    EIN 860668756 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Old Pueblo Square Wheelers Chapter 145

    EIN 943470696 · Headquarters: Green Valley, AZ, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  29. Old Pueblo Trolley

    EIN 942937689 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  30. Old Pueblo Womens Club

    EIN 863955626 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Old Purity Society

    EIN 570692399 · Headquarters: York, SC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Old Rag Mountain Stewards

    EIN 852818533 · Headquarters: Falls Church, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Old Red Rock Cemetery Association Inc

    EIN 742836045 · Headquarters: Dale, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Old Richmond Elementary School PTA

    EIN 561267223 · Headquarters: Tobaccoville, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Old Richmond Road

    EIN 273666406 · Headquarters: Lexington, KY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  36. Old River Fishing Club

    EIN 710132915 · Headquarters: Sherwood, AR, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  37. Old River School PTA

    EIN 954653803 · Headquarters: Downey, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Old River Water Association Inc Old River Water Association Inc

    EIN 640548932 · Headquarters: WOODVILLE, MS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Old Riverside Foundation

    EIN 953407036 · Headquarters: Riverside, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  40. Old Rose Hill Cemetery Association

    EIN 471528572 · Headquarters: Rose Hill, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Old Route 66 Association of Texas

    EIN 752405261 · Headquarters: Amarillo, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Old Route 66 Roadhouse Ranch

    EIN 852227045 · Headquarters: Granite City, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  43. Old Russell County Courthouse Association Inc

    EIN 630712741 · Headquarters: Seale, AL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  44. Old Saginaw City Inc

    EIN 382367788 · Headquarters: SAGINAW, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Old Salem Cemetery Association

    EIN 630851068 · Headquarters: MONTEVALLO, AL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Old Saline Community Cemetery

    EIN 720987807 · Headquarters: Castor, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Old Salt Works Road Beach Association Inc

    EIN 932005891 · Headquarters: Westbrook, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Old Saltsburg Cemetery Restoration

    EIN 474861374 · Headquarters: Spring Church, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Old Saybrook Chamber of Commerce Inc

    EIN 060846200 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Old Saybrook Fire Company No1 Inc

    EIN 061009393 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Old Saybrook Historical Society

    EIN 061013438 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Old Saybrook Lions Club Incorporated

    EIN 066068999 · Headquarters: OLD SAYBROOK, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Old Saybrook Senior Housing Inc

    EIN 061009394 · Headquarters: OLD SAYBROOK, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Old School Artist Retreat Center

    EIN 992115705 · Headquarters: Lengby, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Old School Bible Believers Baptist Church

    EIN 850907755 · Headquarters: Vernon, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Old School Cruisers

    EIN 611538895 · Headquarters: Herndon, VA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  57. Old School Industries Racing Inc

    EIN 813750669 · Headquarters: BOULDER, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Old School Social Club Inc

    EIN 204523707 · Headquarters: Wolcott, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  59. Old School Square Center for the Arts Inc

    EIN 650032803 · Headquarters: DELRAY BEACH, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Old Scool of Clay County Inc

    EIN 813129483 · Headquarters: Middleburg, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Old Scottsdale Merchants Association Inc

    EIN 510209852 · Headquarters: Mesa, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Old Settlers Assoc of Hillsboro

    EIN 376047237 · Headquarters: HILLSBORO, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Old Settlers Association of Grayson

    EIN 751242460 · Headquarters: Sherman, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Old Settlers Association of Montgomery County

    EIN 431051325 · Headquarters: Montgomery City, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Old Settlers Association of Williamson County

    EIN 746062061 · Headquarters: ROUND ROCK, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Old Settlers Picnic Association

    EIN 510173882 · Headquarters: Ryder, ND, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Old Settlers Post No 4659 Veterans

    EIN 381536644 · Headquarters: SHELBY TOWNSHIP, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Old Settlers Water Association

    EIN 916055864 · Headquarters: Custer, WA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. Old Sheriffs House Foundation Incor

    EIN 311251683 · Headquarters: CROWN POINT, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Old Shiloh Cemetery Association Inc

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

  71. Old Silver Beach Homeowners Association Inc

    EIN 042850725 · Headquarters: N FALMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  72. Old Slater Mill Tui

    EIN 056007936 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  73. Old Smoky Chapter of Nrhs

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

  74. Old Smoky Railway Museum Inc

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

  75. Old Southland Cemetery Association

    EIN 510193868 · Headquarters: Grand Prairie, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  76. Old Southwest Inc

    EIN 541171833 · Headquarters: ROANOKE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Old Spanish Missions Inc

    EIN 742155244 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Old Spanish Trail Heritage Foundation Inc

    EIN 237286616 · Headquarters: Gulfport, MS, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. Old Spirits New Lives Inc

    EIN 472522878 · Headquarters: Rochester, MN, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  80. Old Spring Lake Community Center Inc

    EIN 472643668 · Headquarters: Brooksville, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Old St Joseph Neighborhood Preservation Association

    EIN 382445113 · Headquarters: Saint Joseph, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Old St Mark Community Aid Center at Port Tampa Inc

    EIN 320343777 · Headquarters: Tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Old St Patrick Oratory Council 18421

    EIN 334540640 · Headquarters: Kansas City, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Old Star City Cemetery Association Inc

    EIN 351502330 · Headquarters: Star City, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Old State Capitol Foundation

    EIN 371294171 · Headquarters: Springfield, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. Old State House Museum Association

    EIN 710546082 · Headquarters: LITTLE ROCK, AR, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Old Stone Bridge Property Owners' Association Inc

    EIN 061031492 · Headquarters: COS COB, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Old Stone Cemetery

    EIN 010934793 · Headquarters: Burlington, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Old Stone Church Assemblage

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

  90. Old Stone Fort Cemetery Association

    EIN 141277834 · Headquarters: Schoharie, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Old Stone House Estates Owners Association Inc

    EIN 311069268 · Headquarters: Newburgh, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Old Stone House of Brooklyn

    EIN 113032836 · Headquarters: BROOKLYN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Old Stoners Post 7371

    EIN 316085784 · Headquarters: Kipling, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. Old Stoners Veterans of Foreign Wars Auxiliary Post 7371

    EIN 815294792 · Headquarters: OLD WASHINGTON, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. Old Stonington Cemetery Assocation

    EIN 370731051 · Headquarters: Stonington, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Old Straitsville Water Association

    EIN 310894044 · Headquarters: LOGAN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Old Swedes Church Preserv Fd Ir Tua

    EIN 236592113 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  98. Old Tappa First Aid Corps Inc

    EIN 221868846 · Headquarters: Old Tappan, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. Old Tappan Free Public Library Association

    EIN 226014528 · Headquarters: OLD TAPPAN, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Old Tavern Hunting Club

    EIN 471818914 · Headquarters: CONWAY, NC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

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