Nonprofits in Southold, New York

Nonprofits in Southold, New York. Browse 59 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. American Federation of Teachers

    EIN 043831427 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Legion Auxiliary Unit 803

    EIN 237309582 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. American Legion National 803 Griswold Terry-glover

    EIN 116104931 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Be Well Kairos Foundation Inc

    EIN 871857767 · Headquarters: southold, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Billy Knote Memorial Foundation

    EIN 452445980 · Headquarters: SOUTHOLD, NY, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Cast

    EIN 112129868 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Civil Service Employees Association

    EIN 222951429 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Community Land Trust of Southold Town

    EIN 113698770 · Headquarters: Southold, NY, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  9. Custer Institute Inc

    EIN 116035623 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. Cutchogue Homemakers

    EIN 990532357 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Dannys Wish

    EIN 264595056 · Headquarters: SOUTHOLD, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990

  12. Dianjiang Kids International Inc

    EIN 204442149 · Headquarters: Southold, NY, US · Human Services · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  13. Dylan Newman Forever 5 Foundation Inc

    EIN 920712174 · Headquarters: SOUTHOLD, NY, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  14. East End Disabled Benevolent Fund Incorporated

    EIN 112939940 · Headquarters: Southold, NY, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  15. East End Lighthouses Inc

    EIN 113593139 · Headquarters: Southold, NY, US · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  16. East End Marine Farmers Association Inc

    EIN 113616368 · Headquarters: Southold, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Faith Gospel Missionary Outreach

    EIN 760709208 · Headquarters: Southold, NY, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Federated Garden Clubs of New York State Inc

    EIN 113651181 · Headquarters: Southold, NY, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  19. Flora & Fauna Project

    EIN 843746112 · Headquarters: Southold, NY, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Friends of the Southold Free Library

    EIN 237060417 · Headquarters: SOUTHOLD, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Full Sea Inc

    EIN 112510038 · Headquarters: southold, NY, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  22. Group for the East End Inc

    EIN 136379135 · Headquarters: SOUTHOLD, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Little League Baseball Inc

    EIN 320411293 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  24. Long Island Opera Co Inc

    EIN 116036397 · Headquarters: Southold, NY, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  25. Long Island Railroad Benevolent Association Inc

    EIN 201422318 · Headquarters: SOUTHOLD, NY, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  26. Long Island Tumor Registrars Association

    EIN 112721366 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. North Fork Animal Welfare League

    EIN 116024590 · Headquarters: SOUTHOLD, NY, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. North Fork Promotional Council Inc

    EIN 112893610 · Headquarters: SOUTHOLD, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. North Fork Volunteer Rescue Squad Association Inc

    EIN 461940249 · Headquarters: Southold, NY, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Orient Point Cemetery Corp

    EIN 113633296 · Headquarters: Southold, NY, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  31. Paradise Point Basin Association Inc

    EIN 510637859 · Headquarters: Southold, NY, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  32. Peter K Ruhry Keys to Hope Foundation Inc

    EIN 455427132 · Headquarters: Southold, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Pta New York Congress

    EIN 116037908 · Headquarters: SOUTHOLD, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Rites of Spring Music Festival Inc

    EIN 823695345 · Headquarters: SOUTHOLD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Robf Foundation Inc

    EIN 830809420 · Headquarters: SOUTHOLD, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  36. Rosenblatt Foundation

    EIN 113465430 · Headquarters: Southold, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  37. Rotary Club of Southold

    EIN 116037970 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Rotary Club of Southold Charitable Fund Inc

    EIN 823320913 · Headquarters: Southold, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Save the Peconic Bays Inc

    EIN 112976229 · Headquarters: Southold, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  40. Sea Tow Foundation Inc

    EIN 205876631 · Headquarters: SOUTHOLD, NY, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Southold Fire Department

    EIN 061719257 · Headquarters: SOUTHOLD, NY, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Southold Free Library

    EIN 111675859 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Southold Historical Society

    EIN 116023750 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Southold Mothers Club Inc

    EIN 141816165 · Headquarters: Southold, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Southold Opera House Inc

    EIN 812824520 · Headquarters: SOUTHOLD, NY, US · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  46. Southold School Athletic Association

    EIN 421703286 · Headquarters: Southold, NY, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Southold School Educational Foundation

    EIN 463041084 · Headquarters: Southold, NY, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Southold Settlers

    EIN 454127795 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Southold Soccer Club Inc

    EIN 474024624 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  50. Southold Sunshine Society Inc

    EIN 161764721 · Headquarters: Southold, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Southold Voice Inc

    EIN 260674549 · Headquarters: SOUTHOLD, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Southold Yacht Club

    EIN 112138744 · Headquarters: Southold, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Summer Showcase Concert Series of Southold Inc

    EIN 113077449 · Headquarters: Southold, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. The East End Institute for Long Term Care Inc

    EIN 203704729 · Headquarters: SOUTHOLD, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. The Guidance Center Services Inc

    EIN 010858010 · Headquarters: SOUTHOLD, NY, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. The Incorporated Long Island Chapter of the Ny State Archaeologi

    EIN 116009082 · Headquarters: SOUTHOLD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. The North Fork Chamber of Commerce

    EIN 112669173 · Headquarters: SOUTHOLD, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Willow Hill Cemetery Association

    EIN 116039086 · Headquarters: Southold, NY, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  59. Wr Hr Corporation

    EIN 134337188 · Headquarters: Southold, NY, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2009 · Primary form: IRS Form 990-N