Nonprofits in Port Jefferson, New York

Nonprofits in Port Jefferson, New York. Browse 99 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. Ahepa 319 Port Jefferson Inc

    EIN 822889438 · Headquarters: Port Jefferson, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Aidan Kaminska My Day Foundation Inc

    EIN 921856871 · Headquarters: Port Jefferson, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Aluminaire House Foundation Inc

    EIN 452475132 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  4. Amateur Athletic Union of the United States Inc

    EIN 800845755 · Headquarters: Port Jefferson, NY, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  5. American Federation of Teachers

    EIN 112895385 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  6. American Federation of Teachers

    EIN 113024438 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. American Federation of Teachers

    EIN 800649808 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. American Federation of Teachers 2936 Aft

    EIN 237363841 · Headquarters: PORT JEFFERSON, NY, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  9. American Legion 1941 Pearl Harbor Post

    EIN 112632898 · Headquarters: Port Jefferson, NY, USA · Public & Societal Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  10. Americas Research Industry Alliance Inc

    EIN 273407778 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  11. Artpotential Inc

    EIN 863599793 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Benevolent Samaritan Ministries Inc

    EIN 474679867 · Headquarters: Port Jefferson, NY, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Bridge of Hope Resource Center Inc

    EIN 010778900 · Headquarters: PORT JEFFERSON, NY, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. BXB Sunrise

    EIN 395088396 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Cat CARE Inc

    EIN 821268235 · Headquarters: Port Jefferson, NY, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Cedar Hill Cemetery Association C/o Gail Tilton - Secretary

    EIN 110613435 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Center for Peaceful Solutions Inc

    EIN 814034330 · Headquarters: Port Jefferson, NY, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Childrens Maritime Museum at Port Jefferson Dba Long Island Explorium

    EIN 061723721 · Headquarters: Port Jefferson, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Christopher J Malvetti Memorial Fund Inc

    EIN 463049375 · Headquarters: Port Jefferson, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Columbiettes Incorporated

    EIN 371741794 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Council of American Survey Research Organizations Inc

    EIN 133003859 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990

  22. Debt Counseling Corp

    EIN 113282205 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. East End Play Dates Inc

    EIN 825069876 · Headquarters: Port Jefferson, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  24. Frey Family Foundation Inc

    EIN 113640474 · Headquarters: PORT JEFFERSON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  25. Friends of the Port Jefferson Free Library

    EIN 113427291 · Headquarters: Port Jefferson, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Genesis Center for Empowerment

    EIN 030517040 · Headquarters: Port Jefferson, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Girls Pj Lax Inc

    EIN 991057624 · Headquarters: Port Jefferson, NY, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Give Kids Hope Inc

    EIN 454712128 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  29. Global Nest Ministries Inc

    EIN 831597173 · Headquarters: Port Jefferson, NY, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Global Prose

    EIN 462382834 · Headquarters: Port Jefferson, NY, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Greater Port Jeff Chamber of Commerce

    EIN 113047193 · Headquarters: Port Jefferson, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Greater Port Jefferson Arts Council

    EIN 112849810 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Greater Port Jefferson Outreach Center Ltd

    EIN 113559988 · Headquarters: Port Jefferson, NY, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  34. Harbor Ballet Theatre Inc

    EIN 113247643 · Headquarters: PORT JEFFERSON, NY, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. Harborview Nursery School

    EIN 237212865 · Headquarters: PORT JEFFERSON, NY, USA · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  36. Hermanos De La Caridad Con Cristo

    EIN 452772729 · Headquarters: Port Jefferson, NY, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Historical Society of Greater Port Jefferson

    EIN 237063724 · Headquarters: Port Jefferson, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Hounds Town Charities Inc

    EIN 453695712 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Institute for Women and Aging

    EIN 201677723 · Headquarters: Port Jefferson, NY, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  40. Irsr Institute Incorporated

    EIN 822548085 · Headquarters: Port Jefferson, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Jaegers Run Animal Rescue INC

    EIN 861257933 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Jewish War Veterans of the United States of America Inc

    EIN 510177560 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Jtm Health Facilities Foundation Inc

    EIN 112714670 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Kappa Sigma Fraternity

    EIN 900895691 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Knights of Columbus

    EIN 237543987 · Headquarters: Port Jefferson, NY, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Latino Arts Council of Long Island Inc

    EIN 473722731 · Headquarters: Port Jefferson, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Long Island Center for Environmental

    EIN 863080963 · Headquarters: Port Jefferson, NY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Long Island Foundation for Education and Sports Inc

    EIN 900023155 · Headquarters: PORT JEFFERSON, NY, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Long Island Legal Care Inc

    EIN 823099196 · Headquarters: Port Jefferson, NY, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Long Island Seaport & Ecocenter Inc

    EIN 113215778 · Headquarters: PORT JEFFERSON, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Long Island Strong Schools Alliance

    EIN 874235497 · Headquarters: Port Jefferson, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Long Island Symphonic Choral Assoc Inc

    EIN 237405036 · Headquarters: Port Jefferson, NY, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Love Without Barriers Jcl Foundation Fundacion Amor Sin Barr

    EIN 820907176 · Headquarters: Port Jefferson, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Maryhaven School

    EIN 112861690 · Headquarters: PORT JEFFERSON, NY, USA · Education · Latest available filing year: 2020 · Primary form: IRS Form 990

  55. Mather Health System Inc

    EIN 113417615 · Headquarters: Port Jefferson, NY, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  56. Mather Hospital

    EIN 111639818 · Headquarters: Port Jefferson, NY, United States · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Medical Staff of St Charles Hospital

    EIN 471158887 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. New York Association of Naturopathic Physicians Inc

    EIN 161603343 · Headquarters: Port Jefferson, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Pj Nation Wrestling Inc

    EIN 832765383 · Headquarters: Port Jefferson, NY, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Port Jefferson Bid Management Association Inc

    EIN 113471002 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Port Jefferson Civic Association Inc

    EIN 200533158 · Headquarters: Port Jefferson, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  62. Port Jefferson Constable Association

    EIN 273693022 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Port Jefferson Custodial Workers Unit

    EIN 113376968 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  64. Port Jefferson Fire Dept Inc

    EIN 112482661 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Port Jefferson Free Library

    EIN 111672784 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Port Jefferson Harbor Education and Arts Conservancy

    EIN 202114203 · Headquarters: PORT JEFFERSON, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Port Jefferson Lions Community Service Fund Inc

    EIN 112524529 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  68. Port Jefferson Rotary

    EIN 116037927 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Port Jefferson Senior Prom Inc

    EIN 921122216 · Headquarters: Port Jefferson, NY, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  70. Port Jefferson Soccer Booster Club

    EIN 270109644 · Headquarters: Port Jefferson, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Port Jefferson Village Lacrosse Association Inc

    EIN 262754314 · Headquarters: PORT JEFFERSON, NY, USA · Recreation & Sports · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  72. Port Jefferson Volunteer Firemens Benevolent Association Inc

    EIN 116076455 · Headquarters: PORT JEFFERSON, NY, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Port Jefferson Yacht Club Foundation Inc

    EIN 451778929 · Headquarters: PORT JEFFERSON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Port Jefferson-setauket Yacht Club Inc

    EIN 112153963 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  75. Record Research Associates

    EIN 133327045 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Royal Educational Foundation of Por

    EIN 113219449 · Headquarters: Port Jefferson, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  77. Russian Wave Foundation Inc

    EIN 223919739 · Headquarters: PORT JEFFERSON, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  78. Sigma Gamma Rho Sorority Inc Dba Kappa Xi

    EIN 311321568 · Headquarters: Port Jefferson, NY, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. St Charles Corporation

    EIN 112983148 · Headquarters: PORT JEFFERSON, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. St Charles Hospital Corp

    EIN 111871039 · Headquarters: PORT JEFFERSON, NY, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. St Charles Hospital Foundation

    EIN 412076312 · Headquarters: PORT JEFFERSON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Suffolk County American Legion

    EIN 113096909 · Headquarters: Port Jefferson, NY, USA · Public & Societal Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  83. Suffolk Health Association

    EIN 205724473 · Headquarters: Port Jefferson, NY, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990

  84. Suwasset Garden Club

    EIN 116039907 · Headquarters: Port Jefferson, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. The Hamd Foundation Inc

    EIN 470992587 · Headquarters: PORT JEFFERSON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  86. The Ministry for Hope Inc

    EIN 112667800 · Headquarters: Port Jefferson, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. The Port Jefferson Rotary Club Foundation Inc

    EIN 455360426 · Headquarters: Port Jefferson, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. The Thomas Matthew Miloscia Foundation Inc

    EIN 811835042 · Headquarters: PORT JEFFERSON, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  89. The Way Back Inc

    EIN 112551825 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Theatre Three Productions Inc

    EIN 112219446 · Headquarters: PORT JEFFERSON, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Twb Residential Opportunities Ii Inc

    EIN 113527535 · Headquarters: PORT JEFFERSON, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Twb Residential Opportunities Inc

    EIN 113479985 · Headquarters: PORT JEFFERSON, NY, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Veterans Assistance Network Inc

    EIN 113280643 · Headquarters: Port Jefferson, NY, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  94. Veterans for Constitutional Law Ltd

    EIN 113441375 · Headquarters: PORT JEFFERSON, NY, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  95. Whispers Bridge Inc

    EIN 332983774 · Headquarters: Port Jefferson, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Wild Dog Foundation Inc

    EIN 113362055 · Headquarters: Port Jefferson, NY, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Wildland Conservation Alliance Ltd

    EIN 571139578 · Headquarters: Port Jefferson, NY, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  98. Wisdom Gardens Housing

    EIN 113559713 · Headquarters: PORT JEFFERSON, NY, US · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. World Adhesion Foundation Inc

    EIN 320014462 · Headquarters: PORT JEFFERSON, NY, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2025 · Primary form: IRS Form 990-N