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. American Harp Society

    EIN 814454609 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Harp Society

    EIN 842453558 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Harp Society

    EIN 842488559 · Headquarters: East Amherst, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. American Harp Society

    EIN 842786343 · Headquarters: Midwest City, OK, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. American Harp Society

    EIN 842806397 · Headquarters: Huntsville, AL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. American Harp Society

    EIN 860307851 · Headquarters: Scottsdale, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Harp Society

    EIN 870940045 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. American Harp Society

    EIN 942499207 · Headquarters: Canton, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Harp Society

    EIN 942499210 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. American Harp Society

    EIN 942499211 · Headquarters: Southampton, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. American Harp Society

    EIN 942518759 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Harp Society

    EIN 942518760 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. American Harp Society

    EIN 942518761 · Headquarters: Syracuse, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Harp Society

    EIN 942518762 · Headquarters: Maple Valley, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. American Harp Society

    EIN 942518770 · Headquarters: Salt Lake City, UT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. American Harp Society

    EIN 942518772 · Headquarters: Perrysburg, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. American Harp Society

    EIN 942518774 · Headquarters: Duncansville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Harp Society

    EIN 942518776 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. American Harp Society

    EIN 942518781 · Headquarters: Bloomington, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Harp Society

    EIN 942518788 · Headquarters: Lexington, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Harp Society

    EIN 942518791 · Headquarters: Lake Charles, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. American Harp Society

    EIN 942518794 · Headquarters: Eugene, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. American Harp Society

    EIN 942518799 · Headquarters: North Kingstown, RI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Harp Society

    EIN 942518805 · Headquarters: Hayward, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. American Harp Society

    EIN 942576639 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Harp Society

    EIN 942804826 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Harp Society

    EIN 942804827 · Headquarters: Statesville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Harp Society

    EIN 942867989 · Headquarters: Los Gatos, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. American Harp Society

    EIN 942926900 · Headquarters: Scurry, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Harp Society

    EIN 942964964 · Headquarters: Universal City, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Harp Society

    EIN 943006422 · Headquarters: Wilton, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. American Harp Society

    EIN 953281518 · Headquarters: Santa Barbara, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Harp Society

    EIN 992939960 · Headquarters: Salem, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Harp Society Inc

    EIN 874308523 · Headquarters: Cedar Rapids, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. American Headache Society

    EIN 436058456 · Headquarters: MOUNT ROYAL, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. American Health Care Association

    EIN 530260105 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. American Health Decisions Inc

    EIN 223019027 · Headquarters: Brentwood, TN, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. American Health Fair Association Inc

    EIN 260592943 · Headquarters: Manhattan Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  39. American Health Information Management Association

    EIN 362181841 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. American Health Law Association

    EIN 237333380 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. American Health Legal Foundation

    EIN 362991388 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. American Health Planning Association Inc

    EIN 540912605 · Headquarters: Falls Church, VA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  43. American Health Quality Foundation Inc

    EIN 043765053 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. American Healthcare Radiology Administrators Education Foundation Inc

    EIN 363726188 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. American Healthcare Radiology Administrators Inc

    EIN 237271872 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. American Heartland Alliance

    EIN 472076723 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. American Heartland Inc

    EIN 274261621 · Headquarters: fort lauderdale, FL, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  48. American Heartworm Society Inc

    EIN 237383865 · Headquarters: APEX, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. American Helicopter Services and Aerial Firefighting Association

    EIN 311597406 · Headquarters: Basye, VA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  50. American Helicopter Society Group

    EIN 521164466 · Headquarters: FAIRFAX, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. American Helicopter Society International Inc

    EIN 131953506 · Headquarters: FAIRFAX, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. American Hellenic Institute

    EIN 521006027 · Headquarters: Washington, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. American Hellenic Society of Freeport

    EIN 366096507 · Headquarters: freeport, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. American Hemerocallis Society

    EIN 113050203 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Hemerocallis Society

    EIN 931108123 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. American Hemerocallis Society

    EIN 943126414 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Hemerocallis Society

    EIN 943126415 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Hemerocallis Society

    EIN 943126416 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Hemerocallis Society

    EIN 943126417 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. American Hemerocallis Society

    EIN 943126418 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. American Hemerocallis Society

    EIN 943126419 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. American Hemerocallis Society

    EIN 943126420 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. American Hemerocallis Society

    EIN 943126422 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Hemerocallis Society

    EIN 943126423 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. American Hemerocallis Society

    EIN 943126425 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. American Hemerocallis Society

    EIN 943126427 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. American Hemerocallis Society

    EIN 954415365 · Headquarters: Osseo, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. American Hemerocallis Society Region 14

    EIN 262496356 · Headquarters: Centreville, AL, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  69. American Hemp Fund Inc

    EIN 991712194 · Headquarters: Glen Allen, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. American Herbal Products Association

    EIN 870391960 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. American Hereford Association

    EIN 440547734 · Headquarters: KANSAS CITY, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. American Heritage Academy Foundation

    EIN 990251321 · Headquarters: Honolulu, HI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. American Heritage Apartments Inc

    EIN 621501638 · Headquarters: TEXARKANA, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. American Heritage Association

    EIN 830765747 · Headquarters: CHARLESTON, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. American Heritage Girls Inc

    EIN 900591567 · Headquarters: Potomac Falls, VA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  76. American Heritage Music Foundation Inc

    EIN 753189792 · Headquarters: Wappapello, MO, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  77. American Heritage Society

    EIN 902372990 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  78. American Hibiscus

    EIN 592379809 · Headquarters: VENICE, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. American Hibiscus

    EIN 660419637 · Headquarters: Venice, FL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  80. American Hibiscus

    EIN 760105209 · Headquarters: VENICE, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American High School Band Parents

    EIN 942932433 · Headquarters: FREMONT, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. American High School Improv Games Inc

    EIN 931852819 · Headquarters: new york, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. American Highland Cattle Assoc

    EIN 460250402 · Headquarters: Brighton, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. American Highway Users Alliance

    EIN 530186334 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. American Hiking Society

    EIN 510211993 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. American Historical Association

    EIN 530217487 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. American Historical Society of Germans from Russia

    EIN 237062269 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. American History Home School Project

    EIN 883844250 · Headquarters: GLADWYNE, PA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  89. American Hockey League

    EIN 111704511 · Headquarters: Springfield, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. American Hockey League Team Physician Society

    EIN 934292908 · Headquarters: Harleysville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. American Holistic Health Association

    EIN 330412714 · Headquarters: Anaheim, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Holistic Nurses Association

    EIN 742164825 · Headquarters: Topeka, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. American Holistic Nurses Credentialing Corporation

    EIN 562036967 · Headquarters: Cedar Park, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  94. American Home Finding Assoc Endowment Fund for Children

    EIN 426123063 · Headquarters: OTTUMWA, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  95. American Home Furnishings Alliance Inc

    EIN 561394598 · Headquarters: High Point, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. American Homeschool Football Champi Onship Inc

    EIN 991982034 · Headquarters: THE WOODLANDS, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. American Honey Producers Association

    EIN 730779575 · Headquarters: GREAT FALLS, MT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  98. American Hopping Association

    EIN 465148982 · Headquarters: La Porte City, IA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  99. American Horse Council Inc

    EIN 520889723 · Headquarters: McLean, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. American Horse Publications Inc

    EIN 237117953 · Headquarters: CHARLOTTESVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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