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. Once and Future School

    EIN 263854613 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  2. Once Around the Mountain

    EIN 451204142 · Headquarters: CENTER VALLEY, PA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  3. Once Incarcerated Once Inc

    EIN 842808903 · Headquarters: Waterbury, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  4. Once Lost Now Found Dog Rescue

    EIN 831371936 · Headquarters: JEFFERSONVILLE, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Once Upon a Story C/o Robert D Jones

    EIN 330599679 · Headquarters: Mission Viejo, CA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  6. Once Upon a Time Family Therapy Center

    EIN 834121183 · Headquarters: GRASS VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  7. Once Upon a Time Theater

    EIN 814646396 · Headquarters: Malibu, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  8. Once You Choose Hope

    EIN 412586757 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Onclass Corporation

    EIN 814471585 · Headquarters: Sunnyvale, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  10. Oncology Managers of Florida Co M Koerner

    EIN 593149454 · Headquarters: VERO BEACH, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Oncology Nursing Certification Corp

    EIN 251483272 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Oncology Nursing Society

    EIN 275094802 · Headquarters: Stuart, FL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  13. Oncology Nursing Society

    EIN 300072270 · Headquarters: Shelby, OH, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  14. Oncology Nursing Society

    EIN 421272854 · Headquarters: North Liberty, IA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  15. Oncology Nursing Society

    EIN 431621120 · Headquarters: Jackson, MO, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  16. Oncology Nursing Society

    EIN 450399189 · Headquarters: Bismarck, ND, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  17. Oncology Nursing Society

    EIN 510183279 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Oncology Nursing Society

    EIN 510318799 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  19. Oncology Nursing Society

    EIN 521251921 · Headquarters: Maumee, OH, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  20. Oncology Nursing Society

    EIN 521251939 · Headquarters: Pasadena, TX, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  21. Oncology Nursing Society

    EIN 521277612 · Headquarters: kansas city, MO, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  22. Oncology Nursing Society

    EIN 521308968 · Headquarters: Wantagh, NY, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  23. Oncology Nursing Society

    EIN 521338961 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  24. Oncology Nursing Society

    EIN 521400477 · Headquarters: North Augusta, SC, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  25. Oncology Nursing Society

    EIN 521436597 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  26. Oncology Nursing Society

    EIN 521458439 · Headquarters: Prairieville, LA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  27. Oncology Nursing Society

    EIN 521458872 · Headquarters: paducah, KY, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Oncology Nursing Society

    EIN 521459081 · Headquarters: Providence, RI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  29. Oncology Nursing Society

    EIN 521465990 · Headquarters: SUN CITY CTR, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Oncology Nursing Society

    EIN 521513594 · Headquarters: Chesapeake, VA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. Oncology Nursing Society

    EIN 521588490 · Headquarters: Kernersville, NC, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  32. Oncology Nursing Society

    EIN 521738004 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  33. Oncology Nursing Society

    EIN 521776763 · Headquarters: Chico, CA, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  34. Oncology Nursing Society

    EIN 521890139 · Headquarters: Midland, TX, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. Oncology Nursing Society

    EIN 541896407 · Headquarters: Appomattox, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Oncology Nursing Society

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

  37. Oncology Nursing Society

    EIN 631134688 · Headquarters: Montgomery, AL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  38. Oncology Nursing Society

    EIN 710759718 · Headquarters: Springdale, AR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Oncology Nursing Society

    EIN 721220371 · Headquarters: Lafayette, LA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  40. Oncology Nursing Society

    EIN 731296625 · Headquarters: Broken Arrow, OK, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  41. Oncology Nursing Society

    EIN 752452043 · Headquarters: Tyler, TX, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  42. Oncology Nursing Society

    EIN 800305983 · Headquarters: Rehoboth Beach, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  43. Oncology Nursing Society

    EIN 870457665 · Headquarters: West Valley City, UT, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  44. Oncology Nursing Society - C393 East Central Illinois

    EIN 815139388 · Headquarters: Fisher, IL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  45. Oncology Nursing Society - Group

    EIN 251449036 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Onda1nation Community Development Corporation

    EIN 881663968 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Ondalinda Foundation

    EIN 934381040 · Headquarters: WEST HOLLYWOOD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Ondo Pier Club 93

    EIN 760428720 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Ondulando Club Inc

    EIN 956064031 · Headquarters: Ventura, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. One 2 One Esl Tutors

    EIN 811691280 · Headquarters: Eaton, CO, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  51. One Acadiana Inc

    EIN 720232780 · Headquarters: LAFAYETTE, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. One Archives Foundation

    EIN 953660779 · Headquarters: LOS ANGELES, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. One Ark Charity

    EIN 991763704 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. One Baton Rouge

    EIN 831026912 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  55. One Bellevue

    EIN 823308422 · Headquarters: Bellevue, WA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  56. One Blood Initiative Inc

    EIN 900588501 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  57. One Bloomfield United

    EIN 452032322 · Headquarters: West Bloomfield, MI, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  58. One Blue Ocean Inc

    EIN 851636063 · Headquarters: St Pete, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. One Body Coalition of Christ Inc

    EIN 825501932 · Headquarters: Lawrenceville, GA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  60. One Body in Jesus Christ

    EIN 412596259 · Headquarters: KISSIMMEE, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. One Body One Purpose

    EIN 461055759 · Headquarters: PEKIN, IL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  62. One Breath at a Time

    EIN 472641419 · Headquarters: Atlanta, GA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  63. One Breath Thursday

    EIN 831167611 · Headquarters: Decatur, GA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  64. One Brooklyn Health

    EIN 113237483 · Headquarters: Brooklyn, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. One by One Leadership Foundation Inc

    EIN 591711633 · Headquarters: IMMOKALEE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. One Charlotte Health Alliance LLC

    EIN 844739249 · Headquarters: Charlotte, NC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  67. One Child at a Time Foundation Inc

    EIN 208110360 · Headquarters: Pen Argyl, PA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  68. One Chosen Generation

    EIN 800888013 · Headquarters: Fayetteville, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. One Church

    EIN 942182925 · Headquarters: Modesto, CA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. One Church Midland

    EIN 853994851 · Headquarters: Sanford, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. One Church of Livingston In

    EIN 333315270 · Headquarters: Walker, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. One City New York Inc

    EIN 464779946 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. One Columbus

    EIN 812792186 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  74. One Commonwealth Inc

    EIN 992551833 · Headquarters: Dedham, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. One Community Health

    EIN 930910794 · Headquarters: Hood River, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. One Community Outreach

    EIN 874471969 · Headquarters: PRATTVILLE, AL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. One Country Inc

    EIN 833768552 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. One Credit Union

    EIN 036008252 · Headquarters: SPRINGFIELD, VT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. One Day at a Time Group

    EIN 364974178 · Headquarters: Bethlehem, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. One Day at a Time Recovery Inc

    EIN 843062721 · Headquarters: ATLANTA, GA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  81. One Day Closer Foundation Inc

    EIN 881092294 · Headquarters: DENVER, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  82. One Day One Mikvah

    EIN 934533641 · Headquarters: San Lorenzo, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. One Detroit Credit Union

    EIN 380480308 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. One Detroit for All of Us

    EIN 823653723 · Headquarters: LANSING, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. One Do None Foundation

    EIN 901676395 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  86. One Drum Solutions Inc

    EIN 391866016 · Headquarters: Ashland, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. One Ear Out

    EIN 824540605 · Headquarters: Thornton, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. One East Lane Company

    EIN 942925804 · Headquarters: NEWARK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. One Embrace Inc

    EIN 872082648 · Headquarters: North Highlands, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. One Equipped Ministries Inc

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

  91. One Eye Foundation Inc

    EIN 204557172 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. One Eyed Jack Saloon

    EIN 271393090 · Headquarters: WHITEWRIGHT, TX, USA · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  93. One Fair Wage Action Inc

    EIN 465249734 · Headquarters: OAKLAND, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. One Family at a Time Inc

    EIN 814514002 · Headquarters: Miramar, FL, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. One Family Reconnect

    EIN 770711750 · Headquarters: DALLAS, TX, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  96. One Fifty Bleeker Street Inc

    EIN 237387633 · Headquarters: NEWARK, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. One Fifty Parker Avenue School

    EIN 941691549 · Headquarters: San Francisco, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. One Fight Foundation Inc

    EIN 474084307 · Headquarters: Allentown, PA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  99. One Florida Health Corp

    EIN 395141890 · Headquarters: TAMPA, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. One Flushing Housing Development Fund Corporation

    EIN 814301765 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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