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. National Air Traffic Controllers Association

    EIN 232524438 · Headquarters: ALLENTOWN, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. National Air Traffic Controllers Association

    EIN 232525514 · Headquarters: Dupont, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. National Air Traffic Controllers Association

    EIN 232555997 · Headquarters: Reading, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. National Air Traffic Controllers Association

    EIN 232565653 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. National Air Traffic Controllers Association

    EIN 251588277 · Headquarters: CORAOPOLIS, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. National Air Traffic Controllers Association

    EIN 251626659 · Headquarters: Erie, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National Air Traffic Controllers Association

    EIN 862372603 · Headquarters: NEW CUMBERLAND, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. National Alliance for Partnerships in Equity

    EIN 680328221 · Headquarters: PARKESBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. National Alliance of Postal and Federal Employees

    EIN 251572655 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. National Ambucs Inc

    EIN 222452880 · Headquarters: LANCASTER, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. National Ambucs Inc

    EIN 236285388 · Headquarters: POTTSTOWN, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Ambucs Inc

    EIN 561985693 · Headquarters: Boyertown, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  13. National Ambucs Inc

    EIN 582214003 · Headquarters: Schwenksville, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. National Ambucs Inc

    EIN 582214006 · Headquarters: Ambler, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. National Ambucs Inc

    EIN 621859918 · Headquarters: Harleysville, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  16. National Ambucs Inc

    EIN 853666550 · Headquarters: Valencia, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. National Ambucs Inc

    EIN 900433016 · Headquarters: Whitehall, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. National Ambucs Inc

    EIN 900590563 · Headquarters: Phoenixville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. National Ambucs Inc

    EIN 911904356 · Headquarters: Duncansville, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. National Ambucs Inc - Lititz Chapter

    EIN 232644242 · Headquarters: LITITZ, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. National Ambucs Inc Altoona Chapter

    EIN 582213740 · Headquarters: NEW ENTERPRISE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. National Ambucs Inc Conshohocken Chapter

    EIN 911904332 · Headquarters: CONSHOHOCKEN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. National Ass of Catholic School Teachers

    EIN 232161836 · Headquarters: Bensalem, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. National Assn of Letter Carriers Br 451

    EIN 256071336 · Headquarters: JOHNSTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. National Assn of Letter Carriers-branch 157

    EIN 231428417 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Assoc of Letter Carriers John J Casey Branch

    EIN 246021307 · Headquarters: WILKESBARRE, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. National Association for Catering and Events

    EIN 611211333 · Headquarters: Drexel Hill, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. National Association of 1929 Lansdowne Pennsylvania

    EIN 237453313 · Headquarters: LANSDOWNE, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. National Association of Black Accountants Inc

    EIN 237349703 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  30. National Association of Case Management

    EIN 650286192 · Headquarters: Pottsville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. National Association of Colleges & Employers

    EIN 231270546 · Headquarters: BETHLEHEM, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. National Association of County Offices Employees Dba Pennsylvania

    EIN 236298750 · Headquarters: York, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. National Association of Government Employees

    EIN 912157102 · Headquarters: Bushkill, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. National Association of Guardsmen Philadelphia Chapter

    EIN 222450146 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. National Association of Housing & Redevelopment Officials

    EIN 251642145 · Headquarters: Cleona, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Association of Insurance Women

    EIN 236276624 · Headquarters: Mechanicsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Association of Insurance Women

    EIN 256064258 · Headquarters: ERIE, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. National Association of Insurance Women

    EIN 731327867 · Headquarters: Erie, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  39. National Association of Integrative Dental Professionals

    EIN 472700512 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  40. National Association of Letter

    EIN 237059245 · Headquarters: Souderton, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. National Association of Letter 509 John S Reynolds Branch

    EIN 237401580 · Headquarters: YORK, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. National Association of Letter Carriers

    EIN 232077845 · Headquarters: Allentown, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  43. National Association of Letter Carriers

    EIN 236296744 · Headquarters: Norristown, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. National Association of Letter Carriers

    EIN 236434776 · Headquarters: HARRISBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. National Association of Letter Carriers

    EIN 237064141 · Headquarters: CARBONDALE, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  46. National Association of Letter Carriers

    EIN 237087381 · Headquarters: Morrisville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. National Association of Letter Carriers

    EIN 237087387 · Headquarters: Willow Grove, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Association of Letter Carriers

    EIN 237146287 · Headquarters: Easton, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Association of Letter Carriers

    EIN 256058459 · Headquarters: East Brady, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  50. National Association of Letter Carriers

    EIN 256066287 · Headquarters: STATE COLLEGE, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Association of Letter Carriers

    EIN 256087527 · Headquarters: St Marys, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  52. National Association of Letter Carriers # 17

    EIN 236390534 · Headquarters: SCRANTON, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. National Association of Letter Carriers 258

    EIN 236280038 · Headquarters: READING, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. National Association of Letter Carriers 4317

    EIN 237110150 · Headquarters: PAOLI, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. National Association of Letter Carriers 4973

    EIN 237116497 · Headquarters: LEVITTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. National Association of Letter Carriers 520 Uniontown Pennsylvania

    EIN 256087482 · Headquarters: UNIONTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. National Association of Letter Carriers Br 284

    EIN 256063008 · Headquarters: ERIE, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. National Association of Letter Carriers Branch 274

    EIN 246020959 · Headquarters: ALLENTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. National Association of Letter Carriers-Branch 84

    EIN 251122415 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. National Association of Miniature Enthusiasts

    EIN 311459259 · Headquarters: BETHLEHEM, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Association of Miniature Enthusiasts

    EIN 830486384 · Headquarters: Chester Springs, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  62. National Association of Miniature Enthusiasts

    EIN 942612133 · Headquarters: Landenberg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. National Association of Negro Business and Professional Womens C

    EIN 232962566 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Association of Neonatal Nurses

    EIN 232707651 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. National Association of Neonatal Nurses

    EIN 251623884 · Headquarters: Hershey, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. National Association of Personnel Services

    EIN 381713659 · Headquarters: UNIONTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. National Association of Pupil Services Administrators

    EIN 541617066 · Headquarters: BRODHEADSVILLE, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. National Association of Regional Media Centers

    EIN 351406949 · Headquarters: West Milton, PA, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  69. National Association of Retired & Veteran Railway Employees

    EIN 232870319 · Headquarters: Wynnewood, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Association of Retired & Veteran Railway Employees

    EIN 251749635 · Headquarters: Bedford, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Association of Retired & Veteran Railway Employees

    EIN 753158090 · Headquarters: Altoona, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Association of Retired & Veteran Railway Employers

    EIN 363881119 · Headquarters: Beaver, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. National Association of State Chambers

    EIN 350827885 · Headquarters: PALMYRA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. National Association of Supervisor of Business Education

    EIN 271614447 · Headquarters: Gettysburg, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. National Association of Tax Professionals Inc

    EIN 231582968 · Headquarters: Manorville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. National Association of Teachers of Singing

    EIN 881513308 · Headquarters: PHILADELPHIA, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. National Association of the Remodeling Industry

    EIN 462003830 · Headquarters: Camp Hill, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  78. National Association of the Wolves

    EIN 251564454 · Headquarters: Meadville, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. National Association of the Wolves

    EIN 251580552 · Headquarters: Beaver, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Association of Town Watch

    EIN 232186642 · Headquarters: WYNNEWOOD, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. National Association of Traffic

    EIN 232350944 · Headquarters: West Chester, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  82. National Association of Water Companies

    EIN 251064082 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Association of Water Companies - Group Return

    EIN 521132365 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. National Association of Women in Construction

    EIN 236443518 · Headquarters: Bala Cynwyd, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. National Association of Women in Construction

    EIN 237041848 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  86. National Association of Women in Construction

    EIN 516019332 · Headquarters: Kennett Square, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. National Association of Women in Construction

    EIN 842288325 · Headquarters: Red Lion, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. National Auxiliary of the Sons of Union Veterans of Civil War

    EIN 233084606 · Headquarters: Downingtown, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  89. National Auxiliary to the Sons of Union Vetrans of the Civil War

    EIN 821247330 · Headquarters: NEW HOLLAND, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. National Birman Fanciers Inc

    EIN 222931324 · Headquarters: AUDUBON, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  91. National Black Child Development Institute Inc

    EIN 260472689 · Headquarters: Phila, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. National Black MBA Association Phladelphia Chapter

    EIN 232615121 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  93. National Black Nurses Association Inc

    EIN 251609325 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Black Police Association Incorporated

    EIN 232388186 · Headquarters: LAVEROCK, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. National Business Travel Association

    EIN 233072462 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. National Classification Management Society

    EIN 237071476 · Headquarters: WAYNE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. National Coalition of 100 Black Women Inc Pa Chapter

    EIN 222481506 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. National Coalition of Clergy and Laity

    EIN 222717625 · Headquarters: WHITEHALL, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. National Commission for Health Education Credentialing Inc

    EIN 042752770 · Headquarters: BETHLEHEM, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. National Committee for Amish Religious Freedom

    EIN 383630813 · Headquarters: LITITZ, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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