Nonprofits in Mattituck, New York

Nonprofits in Mattituck, 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. Always Greatful Equine Sanctuary Inc

    EIN 921642717 · Headquarters: Mattituck, NY, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. American Legion Post 861

    EIN 301011158 · Headquarters: mattituck, NY, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Ames Feline Adoption & Rescue Inc

    EIN 262384142 · Headquarters: MATTITUCK, NY, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. Childrens Intl Nutritional Organization Inc

    EIN 475237238 · Headquarters: Mattituck, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. East End Venison Inc

    EIN 932313594 · Headquarters: MATTITUCK, NY, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Friends of Orient Beach State Park Inc

    EIN 853535319 · Headquarters: MATTITUCK, NY, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Friends of the Mattituck Free Library Inc

    EIN 112468862 · Headquarters: MATTITUCK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Friendships in Faith Ministries Inc C/o Monica Harbes

    EIN 844457680 · Headquarters: MATTITUCK, NY, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. Ilya and Emilia Kabakov Art Foundation Inc

    EIN 921393378 · Headquarters: MATTITUCK, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Ilya and Emilia Kabakov Foundation

    EIN 356906882 · Headquarters: MATTITUCK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  11. International Association of Electrical Inspectors

    EIN 112405272 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  12. International Association of Lions Clubs

    EIN 113618195 · Headquarters: MATTITUCK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Janever Siedlizer Society

    EIN 464619983 · Headquarters: mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Kaits Angels- Friends of Mattituck Lions Club Inc

    EIN 472777751 · Headquarters: MATTITUCK, NY, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  15. Kim Pawlowski Memorial Fund Inc

    EIN 883595813 · Headquarters: MATTITUCK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  16. Landcraft Garden Foundation Inc

    EIN 834025127 · Headquarters: MATTITUCK, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Letip of Nofo

    EIN 861876516 · Headquarters: Mattituck, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Long Island Mineral & Geology Society Inc

    EIN 112616686 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Marratooka Club

    EIN 843576701 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Mattituck Chamber of Commerce

    EIN 112473701 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Mattituck Community Fund Inc

    EIN 116037123 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Mattituck Cutchogue Athletic Booster Club Inc

    EIN 841688680 · Headquarters: MATTITUCK, NY, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  23. Mattituck Cutchogue Little League

    EIN 521287432 · Headquarters: Mattituck, NY, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  24. Mattituck Historical Society Inc

    EIN 237062997 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Mattituck Lions Club Lnc

    EIN 116036352 · Headquarters: MATTITUCK, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  26. Mattituck Volunteer Firemens Association Inc

    EIN 237007224 · Headquarters: MATTITUCK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  27. Mattituck Yacht Club

    EIN 112118099 · Headquarters: MATTITUCK, NY, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Mattituck-laurel Civic Association Inc

    EIN 473721666 · Headquarters: Mattituck, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Mattituck-laurel Library

    EIN 111677136 · Headquarters: MATTITUCK, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. New York Veteran Owned Business Association Inc

    EIN 831119195 · Headquarters: MATTITUCK, NY, USA · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-PF

  31. North Fork Community Theatre Inc

    EIN 112102223 · Headquarters: MATTITUCK, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990

  32. North Fork Contemporary Inc

    EIN 922708446 · Headquarters: Mattituck, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. North Fork Environmental Council Inc

    EIN 237295395 · Headquarters: MATTITUCK, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. North Fork Italian American Club Inc

    EIN 113345721 · Headquarters: Mattituck, NY, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  35. Order of Eastern Star of New York

    EIN 237549407 · Headquarters: Mattituck, NY, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  36. Orient Point Cemetery Corp

    EIN 112533296 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Peconic Gardiners Junior Sailing Association Inc

    EIN 202810022 · Headquarters: MATTITUCK, NY, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Programa Suenos Inc

    EIN 463826964 · Headquarters: Mattituck, NY, US · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  39. Pta New York Congress

    EIN 113173764 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Pta New York Congress

    EIN 113544963 · Headquarters: MATTITUCK, NY, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Ryans Team Inc

    EIN 863469588 · Headquarters: MATTITUCK, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Second Star Foundation

    EIN 113528701 · Headquarters: MATTITUCK, NY, USA · Science & Technology · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  43. Southold Town Volunteer Fire Fighters Memorial

    EIN 113616735 · Headquarters: Mattituck, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Suburban Children Inc

    EIN 113099754 · Headquarters: Mattituck, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. The Alliancearts Action for Ny Corp

    EIN 113494676 · Headquarters: MATTITUCK, NY, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  46. The Tabula

    EIN 393261530 · Headquarters: MATTITUCK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Timothy Casey Memorial Fund

    EIN 331061176 · Headquarters: Mattituck, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  48. United Giving Network

    EIN 335056473 · Headquarters: MATTITUCK, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Wood Family Foundation Inc

    EIN 320788046 · Headquarters: MATTITUCK, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF