Unknown & Unclassified nonprofits in New York

Unknown & Unclassified nonprofits in New York. Browse 31,594 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. Nassau Pops Symphony Orchestra

    EIN 112789266 · Headquarters: FRANKLIN SQUARE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Nassau Retirees Legal Fund Inc

    EIN 933916750 · Headquarters: SEAFORD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Nassau Suffolk Bridge Association Inc

    EIN 112388607 · Headquarters: Huntington, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. Nassau Suffolk Funeral Directors Association

    EIN 112965270 · Headquarters: SAYVILLE, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Nassau Suffolk Hospital Council Foundation Inc

    EIN 111805346 · Headquarters: HAUPPAUGE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Nassau Suffolk Hospital Council Inc

    EIN 113434265 · Headquarters: HAUPPAUGE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Nassau-suffolk Crematory Ltd

    EIN 113288599 · Headquarters: LAKE RONKONKOMA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Nassau-suffolk Dining Car &

    EIN 111803862 · Headquarters: VALLEY STREAM, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Nassau-suffolk Hospital Shared Services Inc

    EIN 112587515 · Headquarters: HAUPPAUGE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Nassau-Suffolk NY Alumni Chapter

    EIN 923585327 · Headquarters: Hicksville, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. NassauSuffolk Chapter of NCCPAP

    EIN 112905407 · Headquarters: Woodbury, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  12. Nat Assoc of Ben and Ins Pro NY Metro Chapter

    EIN 900138724 · Headquarters: Newburgh, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Nat Sor of Phi Delta Kappa-theta

    EIN 942555747 · Headquarters: BROOKLYN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Nath Mission of USA Inc

    EIN 992009898 · Headquarters: Fresh Meadows, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Nathan & Augusta Simpson Foundation

    EIN 136121503 · Headquarters: BROOKLYN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. Nathan & Eva Treitel Foundation Inc

    EIN 136219640 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  17. Nathan & Louise Goldsmith Foundation Inc C/o Michael Bernstein

    EIN 133367816 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Nathan and Minnie Goldstein Foundation

    EIN 116075970 · Headquarters: GREAT NECK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. Nathan Hale Beach Club Inc

    EIN 111870047 · Headquarters: Halesite, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Nathan Hale Garden Club

    EIN 900765771 · Headquarters: HALESITE, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Nathan Hale Housing Company Inc

    EIN 112256380 · Headquarters: LYNBROOK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Nathan Hale Post Membership Association

    EIN 453916789 · Headquarters: Huntington Station, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Nathan Hale Road Association Inc

    EIN 237387614 · Headquarters: Halesite, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Nathan Rudy & Sons Foundation Inc

    EIN 112943196 · Headquarters: BROOKLYN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. National 10-13 Org Inc

    EIN 113062680 · Headquarters: STONY POINT, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. National Academy of Arbitrators

    EIN 237126791 · Headquarters: CORTLAND, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. National Academy of Arbitrators Research and Education Foundation

    EIN 382613043 · Headquarters: CORTLAND, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. National Academy of Human Resources

    EIN 850403248 · Headquarters: SAG HARBOR, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. National Active & Retired Federal Employees Association

    EIN 412160531 · Headquarters: MORRISONVILLE, NY, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  30. National Active and Retired Federal Employees Association

    EIN 020714595 · Headquarters: Watervliet, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. National Active and Retired Federal Employees Association

    EIN 112962622 · Headquarters: Ridge, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. National Active and Retired Federal Employees Association

    EIN 116084948 · Headquarters: ROSLYN, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. National Active and Retired Federal Employees Association

    EIN 146021392 · Headquarters: Marlboro, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. National Active and Retired Federal Employees Association

    EIN 166085414 · Headquarters: East Bethany, NY, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  35. National Active and Retired Federal Employees Association

    EIN 166085495 · Headquarters: Macedon, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. National Active and Retired Federal Employees Association

    EIN 166085497 · Headquarters: Kenmore, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. National Active and Retired Federal Employees Association

    EIN 166085500 · Headquarters: South Wales, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Active and Retired Federal Employees Association

    EIN 166085524 · Headquarters: North Syracuse, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  39. National Active and Retired Federal Employees Association

    EIN 166085525 · Headquarters: Fayetteville, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. National Active and Retired Federal Employees Association

    EIN 222511806 · Headquarters: Ogdensburg, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Active and Retired Federal Employees Association

    EIN 222529265 · Headquarters: Poughkeepsie, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. National Active and Retired Federal Employees Association

    EIN 222961006 · Headquarters: BATH, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  43. National Active and Retired Federal Employees Association

    EIN 237171168 · Headquarters: Ridgewood, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. National Active and Retired Federal Employees Association

    EIN 237434104 · Headquarters: Poughkeepsie, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. National Active and Retired Federal Employees Association

    EIN 237455158 · Headquarters: Canandaigua, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. National Active and Retired Federal Employees Association

    EIN 581912156 · Headquarters: Elmira, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. National Active and Retired Federal Employees Association

    EIN 581912158 · Headquarters: Schroon Lake, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  48. National Active and Retired Federal Employees Association

    EIN 582072422 · Headquarters: Jamestown, NY, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  49. National Air Traffic Controllers

    EIN 843681089 · Headquarters: Niagara Falls, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Air Traffic Controllers as Sociation

    EIN 223645568 · Headquarters: Ithaca, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. National Air Traffic Controllers Assoc

    EIN 112805001 · Headquarters: WESTBURY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. National Air Traffic Controllers Association

    EIN 112921377 · Headquarters: JAMAICA, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. National Air Traffic Controllers Association

    EIN 112929292 · Headquarters: Ronkonkoma, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. National Air Traffic Controllers Association

    EIN 113109254 · Headquarters: Farmingdale, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. National Air Traffic Controllers Association

    EIN 133472515 · Headquarters: WHITE PLAINS, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. National Air Traffic Controllers Association

    EIN 134021295 · Headquarters: Jamiaca, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. National Air Traffic Controllers Association

    EIN 141709765 · Headquarters: Latham, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Air Traffic Controllers Association

    EIN 141721535 · Headquarters: WAPPINGERS FALLS, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Air Traffic Controllers Association

    EIN 141820003 · Headquarters: Newburgh, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. National Air Traffic Controllers Association

    EIN 161327928 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Air Traffic Controllers Association

    EIN 161328833 · Headquarters: North Syracuse, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. National Air Traffic Controllers Association

    EIN 161330084 · Headquarters: JOHNSON CITY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. National Air Traffic Controllers Association

    EIN 161333315 · Headquarters: Buffalo, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. National Air Traffic Controllers Association

    EIN 161353779 · Headquarters: HORSEHEADS, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. National Air Traffic Controllers Association

    EIN 814278862 · Headquarters: Westbury, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. National Air Traffic Controllers Association-natca Local Zny

    EIN 112979916 · Headquarters: Bohemia, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. National Alliance for Better Nutrition

    EIN 474364748 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. National Alliance of Latino Law Enforcement Officers Naolleo Inc

    EIN 852138468 · Headquarters: BRONX, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. National Alliance of Postal and Federal Employees

    EIN 010680416 · Headquarters: BRONX, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. National Alliance of Postal and Federal Employees

    EIN 131673441 · Headquarters: NEW YORK CITY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Alliance of Postal and Federal Employees

    EIN 237064862 · Headquarters: BRONX, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. National Alliance on Mental Illness of New York City Inc

    EIN 133077692 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. National Alliance on Mental Illness of Westchester Inc

    EIN 133099544 · Headquarters: TARRYTOWN, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. National Alzheimer's Center Inc

    EIN 133403753 · Headquarters: Riverdale, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. National Ambucs Inc

    EIN 364819415 · Headquarters: Mastic Beach, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. National Ambucs Inc

    EIN 900776465 · Headquarters: Binghamton, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  77. National American Glass Club

    EIN 237169174 · Headquarters: RAVENA, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Amputation Foundation Inc

    EIN 111902671 · Headquarters: W Hempstead, NY, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  79. National Architectural Glass & Metal Association Upstate New

    EIN 992138019 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. National Art League

    EIN 111814126 · Headquarters: Douglaston, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. National Asian American Theatre Company

    EIN 133486145 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. National Asian Deaf Congress

    EIN 943282626 · Headquarters: Massapequa, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. National Assn of Letter Carriers Branch 29

    EIN 141678192 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. National Assoc Each One Teach One Inc

    EIN 133163183 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. National Assoc for Pupil Transportation

    EIN 751501000 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. National Assoc of 10Th Mountain Division

    EIN 846118226 · Headquarters: Carthage, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. National Assoc of Broadcast Employees & Techs Local 11

    EIN 111581082 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. National Assoc of Flushing Letter Carriers

    EIN 116102175 · Headquarters: FRESH MEADOWS, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. National Assoc of Letter Carriers

    EIN 136227903 · Headquarters: Staten Island, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  90. National Assoc of Letter Carriers Branch 376

    EIN 146030676 · Headquarters: Port Jervis, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Association Directors of Nursing Administration

    EIN 161567352 · Headquarters: bayside, NY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. National Association for Multi-ethnicity in Communications Foundation

    EIN 954429922 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  93. National Association for Shoplifting Prevention Inc

    EIN 223010584 · Headquarters: Huntington Station, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. National Association for the Advancement of Colored People

    EIN 136227886 · Headquarters: New Rochelle, NY, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  95. National Association for the Advancement of Colored People

    EIN 146039401 · Headquarters: Newburgh, NY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  96. National Association for the Advancement of Colored People

    EIN 161424076 · Headquarters: Binghamton, NY, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  97. National Association for The Advancement of Psychoanalysis

    EIN 132881859 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. National Association of Broadcast Employees and Technicians Local #51025

    EIN 166029745 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. National Association of Consumer Credit Administrators

    EIN 546045009 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. National Association of Episcopal Schools Inc

    EIN 136181427 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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