Unknown & Unclassified nonprofits in Pennsylvania

Unknown & Unclassified nonprofits in Pennsylvania. Browse 26,979 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. Olympic Athletic Club

    EIN 250960458 · Headquarters: DUBOIS, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Omega Chapter of Theta Chi Fraternity

    EIN 392584775 · Headquarters: State College, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Omega Psi Phi Franternity

    EIN 854319329 · Headquarters: PERKASIE, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  4. Omega Psi Phi Fraternity

    EIN 275070009 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Omega Psi Phi Fraternity

    EIN 800661198 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Omega Psi Phi Fraternity Inc

    EIN 200380242 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Omega Psi Phi Fraternity Inc

    EIN 900652800 · Headquarters: California, PA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  8. Omega Psi Phi Omega Lambda Chapter

    EIN 873997237 · Headquarters: Yeadon, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  9. Omicron Association Inc

    EIN 208860589 · Headquarters: State College, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Omicron Educational Foundation

    EIN 251500096 · Headquarters: State College, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237125209 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Omicron Kappa Upsilon Honorary Dental Society

    EIN 364671875 · Headquarters: MONROEVILLE, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Omni Holding Llc

    EIN 208792478 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. On Brians Wings

    EIN 842961007 · Headquarters: Waynesburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. On Drugs Inc

    EIN 251232170 · Headquarters: STATE COLLEGE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. On Hill Charities Inc

    EIN 921899654 · Headquarters: Harrisburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. On Leong Chinese Merchants Assoc Inc

    EIN 236280413 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. On Lok House of Philadelphia Inc

    EIN 232130954 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Onala Recovery Center Inc

    EIN 251308286 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Once Around the Mountain

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

  21. Oncology Nursing Certification Corp

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

  22. Oncology Nursing Society

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

  23. Oncology Nursing Society - Group

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

  24. Onda1nation Community Development Corporation

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

  25. 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

  26. 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

  27. One Fight Foundation Inc

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

  28. One Generation Ministries Inc

    EIN 851126784 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  29. One Heart Ministries

    EIN 251643742 · Headquarters: NEW CUMBERLAND, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. One Heart Mission Corp

    EIN 473569678 · Headquarters: East Petersburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. One Mile Arts

    EIN 874320937 · Headquarters: Huntingdon Vy, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. One Pennsylvania Inc

    EIN 452043538 · Headquarters: HARRISBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  33. One Philly

    EIN 991287727 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Oneunbrokengaze Ministries

    EIN 383832206 · Headquarters: Harrisburg, PA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. Ontelaunee Region Antique Automobile Club of Amer

    EIN 231980543 · Headquarters: FLEETWOOD, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  36. Op Hunting Club

    EIN 274611503 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. OPCMIA Local 526 Joint Apprentice Education and Training Fund

    EIN 251556487 · Headquarters: MUNHALL, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Opcmia Local 526 Welfare Fund

    EIN 256103482 · Headquarters: MUNHALL, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Open Bible Ministries Inc

    EIN 237397496 · Headquarters: Lake Ariel, PA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  40. Open Compass Inc

    EIN 461070279 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  41. Opera North Inc

    EIN 232096792 · Headquarters: FORT WASHINGTON, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  42. Operating Engineers Lo 835 Welfare Fund

    EIN 232079619 · Headquarters: Wayne, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Operating Engineers Local 66 Benefit Fund

    EIN 251468610 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Operating Engineers Local 66 Welfare Fund

    EIN 251187299 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Operation Better Block Inc

    EIN 237157433 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Operation Birthday Box

    EIN 465408657 · Headquarters: Warrington, PA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  47. Operation Honor Guard

    EIN 831741085 · Headquarters: WEST CHESTER, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Operation Nehemiah

    EIN 251717875 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990

  49. Operative Plasterers & Cement Masons International Association

    EIN 232921411 · Headquarters: MUNHALL, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Operative Plasterers and Cement Masons International Association Local 592

    EIN 230932560 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Opex Park

    EIN 852777879 · Headquarters: BENSALEM, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  52. Oppenheim Louis Tuw

    EIN 376030392 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  53. Opportunities Industrialization Center Inc

    EIN 236296920 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Opportunity Associates

    EIN 237078018 · Headquarters: Stroudsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  55. Opportunity Awaits

    EIN 871155182 · Headquarters: Norristown, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Opportunity Doors Inc

    EIN 251769892 · Headquarters: Greenville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Oppticorps Inc

    EIN 473743127 · Headquarters: Bala Cynwyd, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Optimist Club of Boyertown

    EIN 236274613 · Headquarters: BOYERTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Optimist Club of Kutztown

    EIN 232171268 · Headquarters: Kutztown, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  60. Optimist International

    EIN 232109287 · Headquarters: King Of Prussia, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  61. Optimist International

    EIN 232149824 · Headquarters: Ft Washington, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Optimist International

    EIN 236295707 · Headquarters: CHELTENHAM, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Optimist International

    EIN 236296066 · Headquarters: SINKING SPRING, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Optimist International

    EIN 236296924 · Headquarters: east stroudsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Optimist International

    EIN 236296926 · Headquarters: York, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Optimist International

    EIN 236413778 · Headquarters: MACUNGIE, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. Optimist International

    EIN 236414408 · Headquarters: SINKING SPRING, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Optimist International

    EIN 236444276 · Headquarters: Douglassville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Optimist International

    EIN 237025833 · Headquarters: Havertown, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Optimist International

    EIN 237289015 · Headquarters: Elizabethtown, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Optimist International

    EIN 251303067 · Headquarters: Perkiomenville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Optimist International

    EIN 256063022 · Headquarters: MERCER, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  73. Optimist International

    EIN 370038460 · Headquarters: NEW KENSINGTON, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Optimist International

    EIN 465694572 · Headquarters: Ambler, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Optimist International

    EIN 843250893 · Headquarters: Media, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Optimist International

    EIN 900252956 · Headquarters: CHELTENHAM, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Optimist International

    EIN 900290188 · Headquarters: CHELTENHAM, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Orangeville Firemans Relief Association

    EIN 331118986 · Headquarters: Orangeville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Orangeville Sportsmans Club Inc

    EIN 236390688 · Headquarters: ORANGEVILLE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Orbisonia Deer Club

    EIN 842559191 · Headquarters: Greencastle, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Orbisonia Rockhill Volunteer Fire Company

    EIN 251787460 · Headquarters: Orbisonia, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Orchard Beach Park Association of North East Pa

    EIN 251759679 · Headquarters: North East, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Orchard Manor Inc

    EIN 251406515 · Headquarters: GROVE CITY, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Orchardview Stables

    EIN 472858641 · Headquarters: Wexford, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  85. Orchid Foundation

    EIN 387165083 · Headquarters: WEST WYOMING, PA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  86. Orcutts Grove Cemetery Association

    EIN 240818503 · Headquarters: Noxen, PA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  87. Order Italian Sons and Daughters of America

    EIN 237633283 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Order Italian Sons and Daughters of America

    EIN 237633295 · Headquarters: Huntingdon, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Order Italian Sons and Daughters of America

    EIN 237633310 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Order Italian Sons and Daughters of America

    EIN 237633315 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Order Italian Sons and Daughters of America

    EIN 237633326 · Headquarters: PIttsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Order Italian Sons and Daughters of America

    EIN 237633328 · Headquarters: Aliquippa, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Order Italian Sons and Daughters of America

    EIN 237633332 · Headquarters: Washington, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Order Italian Sons and Daughters of America

    EIN 237633334 · Headquarters: Natrona Heights, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Order Italian Sons and Daughters of America

    EIN 237633359 · Headquarters: New Kensington, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Order Italian Sons and Daughters of America

    EIN 237633365 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Order Italian Sons and Daughters of America

    EIN 237633366 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Order Italian Sons and Daughters of America

    EIN 237633372 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Order Italian Sons and Daughters of America

    EIN 237633373 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Order Italian Sons and Daughters of America

    EIN 237633378 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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