Nonprofits in Riverhead, New York

Nonprofits in Riverhead, New York. Browse 177 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. 2Nd Chance Inc

    EIN 272126202 · Headquarters: Riverhead, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. 4 Pete's Sake Inc

    EIN 823773342 · Headquarters: RIVERHEAD, NY, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. 9 Tyler Drive Corp

    EIN 465001248 · Headquarters: RIVERHEAD, NY, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990

  4. Aid to the Developmentally Disabled Inc

    EIN 112573451 · Headquarters: RIVERHEAD, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Al-nahal Foundation

    EIN 394649315 · Headquarters: Riverhead, NY, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Federation of Teachers

    EIN 271318216 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. American Legion Post No 273

    EIN 116104937 · Headquarters: RIVERHEAD, NY, USA · Public & Societal Benefit · Latest available filing year: 2015 · Primary form: IRS Form 990

  8. Aram Square Club Inc

    EIN 824221214 · Headquarters: Riverhead, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Baiting Hollow Cemetery Assn Inc

    EIN 237224482 · Headquarters: RIVERHEAD, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Betty Ann Hartmann Foundation Inc

    EIN 821530520 · Headquarters: RIVERHEAD, NY, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  11. Blue Waves Boys Basketball Booster Club Inc

    EIN 992075946 · Headquarters: RIVERHEAD, NY, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Bonafide Saints New York Law Enforcement Motorcycle Club

    EIN 471283121 · Headquarters: Riverhead, NY, US · Crime & Legal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  13. Central Suffolk Hospital Foundation

    EIN 200714587 · Headquarters: RIVERHEAD, NY, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Child Development and Learning Center

    EIN 113446294 · Headquarters: RIVERHEAD, NY, US · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  15. Civil Service Employees Association

    EIN 112860993 · Headquarters: riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Civil Service Employees Association

    EIN 112861115 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Civil Service Employees Association

    EIN 112861194 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Civil Service Employees Association

    EIN 542157213 · Headquarters: riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Civil Service Employees Association

    EIN 862414105 · Headquarters: RIVERHEAD, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Coastal Reserve Corp

    EIN 474917503 · Headquarters: Riverhead, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Columbiettes Incorporated

    EIN 352407747 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Community Center for Blind and Sighted

    EIN 112644561 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  23. Cornell Cooperative Extension of Suffolk County

    EIN 116081424 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  24. Council for the Vail-leavitt Music Hall Inc

    EIN 112569184 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Critterville Farm Sanctuary Inc

    EIN 995059507 · Headquarters: RIVERHEAD, NY, US · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Cuttica Foundation Corp

    EIN 812879623 · Headquarters: Riverhead, NY, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  27. Department of New York Ladies Auxiliary to the Veterans Of

    EIN 261453958 · Headquarters: Riverhead, NY, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  28. Dirt Dad Fund Inc

    EIN 861554870 · Headquarters: Riverhead, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Discoveries East End Learning and Mentorship Center

    EIN 852789225 · Headquarters: Riverhead, NY, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. DMS Dream Foundation

    EIN 460564421 · Headquarters: Riverhead, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Dr Lazarus Onwuka Medical Foundatio

    EIN 874214987 · Headquarters: Riverhead, NY, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. East End Arts Council

    EIN 112285495 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. East End Counselors Association Inc

    EIN 471994480 · Headquarters: RIVERHEAD, NY, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  34. East End Disability Associates

    EIN 113318718 · Headquarters: Riverhead, NY, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. East End Forever Inc

    EIN 113421201 · Headquarters: Riverhead, NY, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  36. East End Tourism Alliance Inc

    EIN 262661485 · Headquarters: RIVERHEAD, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. East End Women's Network

    EIN 112671708 · Headquarters: Riverhead, NY, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Eastern Long Island Antique Fire Aparatus Association

    EIN 823676074 · Headquarters: RIVERHEAD, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. Eastern Long Island Quilters Quild

    EIN 112581553 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Eeda Foundation Inc

    EIN 510474387 · Headquarters: RIVERHEAD, NY, USA · Human Services · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  41. Empire State Huskies - Long Island Inc

    EIN 831525856 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Family Community Life Center Inc

    EIN 112989726 · Headquarters: RIVERHEAD, NY, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Flanders Riverside & Northampton Community Association Inc

    EIN 030437464 · Headquarters: RIVERHEAD, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Flanders Village Historical Society

    EIN 270484815 · Headquarters: Riverhead, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Forget Me Not of America Inc

    EIN 271200391 · Headquarters: RIVERHEAD, NY, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Friars Head Disaster Relief Fund

    EIN 851402467 · Headquarters: Riverhead, NY, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Friends of the Riverhead Library Inc

    EIN 112890828 · Headquarters: RIVERHEAD, NY, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Fund for Reconciliation & Development

    EIN 232569447 · Headquarters: RIVERHEAD, NY, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Gertrude and Leonard Mccombe Foundation

    EIN 832335341 · Headquarters: RIVERHEAD, NY, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  50. Grace House of Faith Putting Peoples Need First

    EIN 412228268 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  51. Gwen L Kosinski Foundation Inc C/o East End Financial Group

    EIN 582683423 · Headquarters: RIVERHEAD, NY, USA · Medical Research · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Hallockville Inc

    EIN 112365133 · Headquarters: RIVERHEAD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Harvest East End Inc

    EIN 452690482 · Headquarters: Riverhead, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Heart of Riverhead Civic Association Inc

    EIN 882522418 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Heidi's Helping Angels

    EIN 263771948 · Headquarters: RIVERHEAD, NY, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. Hope and Resilience Long Island Inc

    EIN 881719447 · Headquarters: RIVERHEAD, NY, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  57. Housing America Foundation

    EIN 522270448 · Headquarters: Riverhead, NY, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Humane Long Island

    EIN 462244513 · Headquarters: RIVERHEAD, NY, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Iglesia Cristiana Emanuel Inc

    EIN 300950366 · Headquarters: RIVERHEAD, NY, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Iglesia De Cristo En Riverhead Inc

    EIN 871071116 · Headquarters: Riverhead, NY, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Iglesia De Dios Manantiales De Vida Eterna R

    EIN 863483647 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Iglesia Evangelica Apostoles Y Profetas El Eden

    EIN 113684302 · Headquarters: Riverhead, NY, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Iglesia La Nueva Jerusalen Inc

    EIN 113538588 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  64. Im My Sisters Keeper Inc

    EIN 850790675 · Headquarters: Riverhead, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Imagine Special Equestrians Inc

    EIN 020659070 · Headquarters: Riverhead, NY, USA · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  66. Independent Order of Odd Fellows

    EIN 116043270 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Independent Order of Our Fratelli Inc

    EIN 821501390 · Headquarters: RIVERHEAD, NY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Indian Network of Eastern Long Island Inc

    EIN 020732272 · Headquarters: RIVERHEAD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Irie Inc

    EIN 113271685 · Headquarters: RIVERHEAD, NY, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. Johanna's Hope Inc

    EIN 874555527 · Headquarters: RIVERHEAD, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  71. John Wesley Village Ii Inc

    EIN 113418335 · Headquarters: RIVERHEAD, NY, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  72. Laurentshatcher Foundation Inc

    EIN 136114331 · Headquarters: RIVERHEAD, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  73. Let There Be Aid Inc C/o Allison Singh Esq

    EIN 932996799 · Headquarters: RIVERHEAD, NY, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Li Reapers Fastpitch Incorporated

    EIN 933859966 · Headquarters: RIVERHEAD, NY, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Long Island Antique Power Association Inc

    EIN 113253259 · Headquarters: RIVERHEAD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  76. Long Island Authors and Writers Society

    EIN 455619015 · Headquarters: Riverhead, NY, US · Arts, Culture & Humanities · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  77. Long Island Buddhist Meditation Center

    EIN 800148046 · Headquarters: Riverhead, NY, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Long Island District of New York State Assoc of Fam & Consumer Scie

    EIN 112403108 · Headquarters: Riverhead, NY, US · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Long Island Wine Council Inc

    EIN 112994323 · Headquarters: riverhead, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Lovem Sheltering Inc

    EIN 113220981 · Headquarters: Riverhead, NY, US · Housing & Shelter · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  81. Lt Michael P Murphy Usn Memorial Scholarship Foundation

    EIN 161730124 · Headquarters: Riverhead, NY, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Magnificat-suffolk County Ny Chapter

    EIN 472460823 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Marcos 1615

    EIN 113494487 · Headquarters: RIVERHEAD, NY, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Maureens Haven Inc

    EIN 113392151 · Headquarters: RIVERHEAD, NY, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Meridian Triangle 71

    EIN 992998245 · Headquarters: RIVERHEAD, NY, USA · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  86. Montauk Surfcasters Alliance Inc

    EIN 853083058 · Headquarters: Riverhead, NY, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  87. My-life Integrative Wellness Inc

    EIN 475067918 · Headquarters: RIVERHEAD, NY, USA · Health Care · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  88. Nassau Suffolk Civil Engineers

    EIN 237373929 · Headquarters: Riverhead, NY, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. National Council of Negro Women Inc

    EIN 911917507 · Headquarters: Riverhead, NY, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. National Institute for Special Education Inc

    EIN 550914442 · Headquarters: RIVERHEAD, NY, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. National Society of the Daughters of the American Revolution

    EIN 116014206 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. New York State Fire Marshalls and Inspectors Association Inc

    EIN 260370333 · Headquarters: RIVERHEAD, NY, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. North Fork Breast Health Coalition Inc

    EIN 113443720 · Headquarters: RIVERHEAD, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. North Fork Country Kids Rescue and Preservation Through Pedagogy

    EIN 811651650 · Headquarters: riverhead, NY, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Open Arms Care Center Inc

    EIN 311723285 · Headquarters: RIVERHEAD, NY, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Our Future Generation

    EIN 454546519 · Headquarters: Riverhead, NY, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Parent Booster USA Inc

    EIN 825084294 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Paumanok Weavers Guild

    EIN 112579152 · Headquarters: Riverhead, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Peconic Ballet Foundation Inc

    EIN 465658097 · Headquarters: Riverhead, NY, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Peconic Bay Health System Inc

    EIN 112761795 · Headquarters: RIVERHEAD, NY, US · Health Care · Latest available filing year: 2014 · Primary form: IRS Form 990-N

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