Nonprofits in Williston Park, New York

Nonprofits in Williston Park, New York. Browse 49 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 320214023 · Headquarters: Williston Park, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Legion Auxiliary

    EIN 320259281 · Headquarters: Williston Park, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Andrew Desiderio Memorial Scholarship Fund Inc

    EIN 870911831 · Headquarters: Williston Park, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  4. Association of Administrators Of

    EIN 263502662 · Headquarters: WILLISTON PARK, NY, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Cadet College Club of North America

    EIN 842630405 · Headquarters: WILLISTON PARK, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Chamber of the Willistons Inc

    EIN 463042667 · Headquarters: Williston Park, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Columbiettes Incorporated

    EIN 474228657 · Headquarters: WILLISTON PARK, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. De Jesus Associates Inc

    EIN 473046811 · Headquarters: WILLISTON PARK, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  9. East Williston Creative Arts Work Shop

    EIN 112218537 · Headquarters: Williston Park, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  10. East Williston-roslyn Community Coaliton for Drug-free Youth Inc

    EIN 208417381 · Headquarters: Williston Park, NY, US · Crime & Legal Related · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  11. Friends for Old Bethpage Village Re

    EIN 852666816 · Headquarters: WILLISTON PARK, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Greater Khulna Society of USA Inc

    EIN 831305217 · Headquarters: WILLISTON PARK, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Hope of the Generation Uganda Incorporated

    EIN 271352713 · Headquarters: Williston Park, NY, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Jewish Heritage Movement Inc C/o Ben Packer Gotham Assets

    EIN 460680611 · Headquarters: WILLISTON PARK, NY, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Little League Baseball Inc

    EIN 112367324 · Headquarters: WILLISTON PARK, NY, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Long Island Chapter of the American Rock Garden Society Inc

    EIN 112725075 · Headquarters: Williston Park, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Marine Corps League

    EIN 474625585 · Headquarters: Williston Park, NY, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Maxine & Irving Castle Family Foundation Inc

    EIN 464370993 · Headquarters: WILLISTON PARK, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  19. Memon Association of North America Inc

    EIN 113159624 · Headquarters: WILLISTON PARK, NY, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Mineola High School Athletic Hall of Fame Corp

    EIN 990980045 · Headquarters: Williston Park, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Mission Helping Hands Corp

    EIN 841737479 · Headquarters: WILLISTON PARK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. Mohmedali Foundation

    EIN 421591230 · Headquarters: Williston Park, NY, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Nami Central Suffolk Long Island Ny Inc

    EIN 921755273 · Headquarters: WILLISTON PARK, NY, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Nassau County Magistrates Associationinc

    EIN 260145971 · Headquarters: WILLISTON PARK, NY, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. National Society of the Daughters of the American Revolution

    EIN 116036454 · Headquarters: Williston Park, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. New York International Youth Philharmonic Inc

    EIN 474725173 · Headquarters: WILLISTON PARK, NY, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Pta New York Congress

    EIN 113317874 · Headquarters: Williston Park, NY, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  28. Rotary Club of Williston Park Inc

    EIN 472109568 · Headquarters: WILLISTON PARK, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Shelter Rock Rifle & Pistol Club Inc

    EIN 237171206 · Headquarters: Williston Park, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Sigma Theta Tau International Alpha Omega Chapter

    EIN 237111293 · Headquarters: Williston Park, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Solomon Schechter Day School of Nassau County

    EIN 112149235 · Headquarters: WILLISTON PARK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Sri Hemkunt Foundation Inc

    EIN 112557950 · Headquarters: Williston Park, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Tabula Rasa Autism Foundation Inc

    EIN 464694757 · Headquarters: Williston Park, NY, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  34. The D Orner Family Foundation Ltd

    EIN 831543764 · Headquarters: WILLISTON PARK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  35. The D'brickashaw Ferguson Foundation Inc

    EIN 260805570 · Headquarters: WILLISTON PARK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  36. Uc & Iw Union Local 91

    EIN 112245775 · Headquarters: WILLISTON PARK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Unico National

    EIN 116080492 · Headquarters: WILLISTON PARK, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. United Alliance of Nys Licensed Acupuncturists Inc

    EIN 133902753 · Headquarters: WILLISTON PARK, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. United Crafts Benefits Fund

    EIN 112252603 · Headquarters: WILLISTON PARK, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. United Ostomy Association of America Inc

    EIN 112758160 · Headquarters: Williston Park, NY, US · Medical Research · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  41. Veterans of Foreign Wars Department of New York

    EIN 237336888 · Headquarters: WILLISTON PARK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Virginia Anns Angels Inc

    EIN 334708698 · Headquarters: Williston Park, NY, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Warren and Claire Mcnally Foundation Corp

    EIN 464391517 · Headquarters: Williston Park, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Welcome Wagon Club of Albertson Searington and the Willistons

    EIN 112506770 · Headquarters: Williston Park, NY, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  45. Williston Park Fire Department Emergency Rescue Squad Inc

    EIN 932280516 · Headquarters: Williston Park, NY, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Williston Park Fire Department Hook & Ladder Company 2 Inc

    EIN 932280025 · Headquarters: Williston Park, NY, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Williston Park Fire Department Hose & Salvage Company 3 Inc

    EIN 932280303 · Headquarters: Williston Park, NY, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Williston Park Fire Department Inc

    EIN 932280815 · Headquarters: Williston Park, NY, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Williston Post 144 American Legion

    EIN 116104946 · Headquarters: Williston Park, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ