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. Sisters Supported Inc

    EIN 333217980 · Headquarters: MONSEY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Siuh Systems Inc

    EIN 061074604 · Headquarters: WESTBURY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Siwanoy Country Club

    EIN 131731831 · Headquarters: BRONXVILLE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Siwanoy School Pta

    EIN 237334876 · Headquarters: Pelham, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Six Rules Unlimited Inc

    EIN 811982185 · Headquarters: Jamaica, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  6. Sixth Avenue Partners Group Inc

    EIN 883902792 · Headquarters: GREAT NECK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Sixth District Dental Society

    EIN 166033170 · Headquarters: JOHNSON CITY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Sixth Masonic District Association of Manhattan Inc

    EIN 132631136 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. Sixth Memorial Association Inc

    EIN 116014418 · Headquarters: BROOKLYN, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sixth Street & Avenue B Garden Inc

    EIN 133485051 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Siyata Foundation

    EIN 474103009 · Headquarters: Brooklyn, NY, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  12. Sj Housing Development Fund Company Inc

    EIN 141711633 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Skaneateles Ambulance

    EIN 166088614 · Headquarters: SKANEATELES, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Skaneateles Area Chamber of Commerceinc

    EIN 237228885 · Headquarters: SKANEATELES, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Skaneateles Central School Endowment

    EIN 166076528 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  16. Skaneateles Country Club

    EIN 150449780 · Headquarters: Skaneateles, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Skaneateles Early Childhood Center Inc

    EIN 222316055 · Headquarters: SKANEATELES, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Skaneateles Elementary School Parent Teachers Club

    EIN 237054786 · Headquarters: Skaneateles, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Skaneateles La Crosse Club Inc

    EIN 222419654 · Headquarters: Skaneateles, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Skaneateles Lake Association Inc

    EIN 237045486 · Headquarters: SKANEATELES, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Skaneateles Library Association

    EIN 150533566 · Headquarters: SKANEATELES, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  22. Skaneateles Lodge 522 F&AM

    EIN 156024570 · Headquarters: Skaneateles, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Skaneateles Sailing Club

    EIN 161257762 · Headquarters: Skaneateles, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. Skaneateles Softball Boosters

    EIN 832994470 · Headquarters: SKANEATELES, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Skenesborough Ems Inc

    EIN 141510533 · Headquarters: WHITEHALL, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Ski Areas of New York Inc

    EIN 222367597 · Headquarters: JAMESVILLE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Ski Realty Inc

    EIN 133389586 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  28. Skijunkies Inc

    EIN 460900463 · Headquarters: Rockaway Beach, NY, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  29. Sky Education and World Community Center Inc

    EIN 450524971 · Headquarters: Sayville, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. Sky High Flyers Flying Club Inc

    EIN 843610956 · Headquarters: Holbrook, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Sky Rink Winter Games Training Facilities Inc

    EIN 133550784 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  32. Skyles Tw Msbg Comm Fd & Presb Hme

    EIN 256082948 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  33. Skylight Properties Inc

    EIN 133870857 · Headquarters: STATEN ISLAND, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Skymusic Inc

    EIN 133489591 · Headquarters: NEW YORK CITY, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Skysaver Productions Inc

    EIN 133130265 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. SKYYE THE LIMIT CENTER FOR ACADEMIC and Cultural E

    EIN 331090458 · Headquarters: Brentwood, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  37. Sl County R W Assoc

    EIN 271973377 · Headquarters: Gouverneur, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Sla Foundation

    EIN 133316015 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  39. Slate Property Arts & Culture Endowment Inc

    EIN 811559979 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Slavic Arts Ensemble Inc

    EIN 112445090 · Headquarters: Brooklyn, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Sledny Inc

    EIN 462166089 · Headquarters: CENTRAL SQUARE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Sleepy Hollow Cemetery at Tarrytown

    EIN 131731914 · Headquarters: SLEEPY HOLLOW, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Sleepy Hollow Country Club

    EIN 131731915 · Headquarters: SCARBOROUGH, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Sloman Foundation Inc

    EIN 237011941 · Headquarters: SOMERS, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  45. Slova Gisner Residuary Trust

    EIN 306541204 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  46. Slova Gisner Residuary Trust

    EIN 306541205 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  47. Slova Gisner Residuary Trust

    EIN 306541206 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  48. Slova Gisner Residuary Trust

    EIN 306541207 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  49. Slova Gisner Residuary Trust

    EIN 306541208 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  50. Slovak Catholic Sokol

    EIN 237523030 · Headquarters: Brooklyn, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Slovenian Club of Gowanda Inc

    EIN 160638490 · Headquarters: GOWANDA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Slow Food USA Inc

    EIN 030596477 · Headquarters: Old Westbury, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Smacna - Buffalo Inc

    EIN 160953428 · Headquarters: CHEEKTOWAGA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Smacna of Long Island Inc

    EIN 237002801 · Headquarters: BOHEMIA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Smacna-New York State Inc

    EIN 133592031 · Headquarters: NEWBURGH, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Smacna-rochester Inc

    EIN 160970626 · Headquarters: ROCHESTER, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Small Business Networking Alliance

    EIN 844244275 · Headquarters: East Setauket, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Small Property Owners of New York Inc

    EIN 133244625 · Headquarters: LARCHMONT, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Small Town Country 4-H

    EIN 472380705 · Headquarters: Callicoon, NY, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  60. Small Town Development Fund

    EIN 934675146 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Small Wonders Child Care Centerinc

    EIN 113054001 · Headquarters: HAUPPAUGE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Smalley Foundation Inc

    EIN 136225947 · Headquarters: MANHASSET, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  63. Smart Bethel

    EIN 872664052 · Headquarters: Smallwood, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  64. Smart Local 137 Insurance Fund

    EIN 135520944 · Headquarters: LONG ISLAND CITY, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Smart Local Union No 28

    EIN 135388240 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  66. Smile Therapeutic Network Inc

    EIN 451350357 · Headquarters: New York, NY, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  67. Smile Train

    EIN 133661416 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Smith Amelia Irrev Ta (Pf)

    EIN 236642732 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. Smith Center for the Arts

    EIN 132990562 · Headquarters: Geneva, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Smith College Club of Syracuse

    EIN 237236833 · Headquarters: Syracuse, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Smith Edward C Jr Ta

    EIN 236642730 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. Smith G Tuwfbo Falling Sprgs Cong

    EIN 256164396 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  73. Smith Johnson Scout Reservation Inc

    EIN 141712823 · Headquarters: Pawling, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Smith Point Fish & Hunt Club Inc

    EIN 113201632 · Headquarters: Mastic Beach, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Smith Point Peninsula Homeowners Association Inc

    EIN 412265466 · Headquarters: Smith Point, NY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Smith Point Property Owners Association

    EIN 020737239 · Headquarters: Smith Point, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  77. Smith Road Parent Teacher Organization

    EIN 237120591 · Headquarters: North Syracuse, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  78. Smith Street Arts and Letters

    EIN 871763493 · Headquarters: BROOKLYN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Smith-Warren Post 367 The American Legion

    EIN 166093862 · Headquarters: Scottsville, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Smithfield Cemetery Association

    EIN 800673414 · Headquarters: Dover Plains, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Smithtown Bay Yacht Club

    EIN 116036950 · Headquarters: Smithtown, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  82. Smithtown Cemetery Association Inc

    EIN 112385930 · Headquarters: SMITHTOWN, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. Smithtown Elementary School Pta

    EIN 116101125 · Headquarters: SMITHTOWN, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Smithtown Hauppauge Ice Hockey Club Inc

    EIN 824094666 · Headquarters: Smithtown, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  85. Smithtown Lioness

    EIN 113033429 · Headquarters: Smithtown, NY, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  86. Smithtown Special Library District

    EIN 116042380 · Headquarters: NESCONSET, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Smithtown Stitchers Inc

    EIN 112814524 · Headquarters: smithtown, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Smithtown Volunteer Exempt Fireman's Benevolent Association

    EIN 237401870 · Headquarters: SMITHTOWN, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Smithtown West Lacrosse Pts Asc Inc

    EIN 934600388 · Headquarters: Smithtown, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Smithville Flats Cemetery Association Inc

    EIN 010918324 · Headquarters: McDonough, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Smithville Rescue

    EIN 900182064 · Headquarters: SMITHVILLE FLATS, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  92. Smithy-pioneer Gallery Inc Smithy Center for the Arts

    EIN 222585458 · Headquarters: COOPERSTOWN, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  93. Smocking Arts Guild of America Inc

    EIN 320435732 · Headquarters: Sloatsburg, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Smokey Cottages Association

    EIN 141548418 · Headquarters: Lake George, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Smokey Hollow Housing Development Fund Company Inc

    EIN 161428994 · Headquarters: SYRACUSE, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Smooth Sailing Svc Inc

    EIN 333699175 · Headquarters: MONSEY, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Smyrna Public Library

    EIN 222717120 · Headquarters: Smyrna, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Snayberger Memorial Fdn (Pf)

    EIN 232056361 · Headquarters: BUFFALO, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  99. Snell Hose Company 1 Inc

    EIN 141818479 · Headquarters: Fonda, NY, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  100. Sng Association Inc

    EIN 112028242 · Headquarters: SEAFORD, NY, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

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