Nonprofits in Williamsport, Pennsylvania

Nonprofits in Williamsport, Pennsylvania. Browse 394 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. Marguerite Carl Smith Foundation 230004

    EIN 232564406 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  2. Marine Corps League

    EIN 232992850 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Marine Corps League

    EIN 262924669 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Marine Corps League

    EIN 320699361 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Mary H Ashkar Charitable Trust 200011

    EIN 826392578 · Headquarters: WILLIAMSPORT, PA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  6. Mary M Cook Charitable Trust 200010

    EIN 826435370 · Headquarters: WILLIAMSPORT, PA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. Masonic Temple Association of Williamsport

    EIN 232721953 · Headquarters: WILLIAMSPORT, PA, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. Medical Staff Services Association of Pennsylvania

    EIN 883336882 · Headquarters: Williamsport, PA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Milkweed Monarchy Inc

    EIN 862910383 · Headquarters: WILLIAMSPORT, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Montoursville Area Education Association

    EIN 263861491 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Montoursville Little League

    EIN 222500993 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  12. Nancy Wiley Wilson Temple 1036

    EIN 232206328 · Headquarters: Williamsport, PA, US · Mutual & Membership Benefit · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  13. National Active and Retired Federal Employees Association

    EIN 236432240 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. National Alliance of Attorneys for Alzheimers Planning

    EIN 832715982 · Headquarters: WILLIAMSPORT, PA, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. National Giving Alliance

    EIN 236410755 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. National Organization for Women Inc

    EIN 232160179 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. National Organization for Women Inc

    EIN 232696261 · Headquarters: williamsport, PA, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  18. National Rural Letter Carriers Association

    EIN 237235188 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. New Covenant Community Connectionsinc

    EIN 204887557 · Headquarters: WILLIAMSPORT, PA, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. New Life Wake Up Ministries

    EIN 273401111 · Headquarters: WILLIAMSPORT, PA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Newberry Community Partnership

    EIN 050634031 · Headquarters: Williamsport, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Newberry Independent Club

    EIN 240772496 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Newberry Little League

    EIN 237006382 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  24. Next Genesis Inc

    EIN 993723933 · Headquarters: Williamsport, PA, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Nippenose Valley Recreation

    EIN 844508617 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  26. Nonprofit Social Welfare Organization

    EIN 464922491 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  27. North Central Chapter 8 of the Society for Pennsylvania Archaeology Ncc8

    EIN 232663534 · Headquarters: WILLIAMSPORT, PA, USA · Arts, Culture & Humanities · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  28. North Central Pennsylvania Aquarium Reef Society Inc

    EIN 204283890 · Headquarters: Williamsport, PA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. North Central Sight Services Inc

    EIN 240814118 · Headquarters: WILLIAMSPORT, PA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Northcentral Pa Estate Planners Council

    EIN 233047463 · Headquarters: WILLIAMSPORT, PA, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Northcentral Pennsylvania Conservancy

    EIN 232606163 · Headquarters: WILLIAMSPORT, PA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Northern Appalachian Wind Symphony Association

    EIN 811560123 · Headquarters: WILLIAMSPORT, PA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  33. Not to Us Ministries

    EIN 450550061 · Headquarters: WILLIAMSPORT, PA, US · Religion Related · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  34. Old Lycoming Township Volunteer Fire Company Inc

    EIN 236422912 · Headquarters: WILLIAMSPORT, PA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Onfire Agape Ministries Inc

    EIN 271324495 · Headquarters: Williamsport, PA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Op Hunting Club

    EIN 274611503 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Orange Stones Co

    EIN 232976370 · Headquarters: WILLIAMSPORT, PA, USA · Crime & Legal Related · Latest available filing year: 2019 · Primary form: IRS Form 990

  38. Original League Inc

    EIN 236390546 · Headquarters: Williamsport, PA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Pa Irc Network Foundation

    EIN 473349280 · Headquarters: WILLIAMSPORT, PA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Pa Society of Professional Engineers

    EIN 264368437 · Headquarters: Williamsport, PA, US · Science & Technology · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  41. Pastoral Evangelization Awareness Childrens Education Peace

    EIN 993968294 · Headquarters: WILLIAMSPORT, PA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Pennsylvania Assoc of Letter Carriers

    EIN 231744666 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Pennsylvania Association for the Education of Young Children

    EIN 201351323 · Headquarters: Williamsport, PA, US · Education · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  44. Pennsylvania College Education Association

    EIN 300513152 · Headquarters: Williamsport, PA, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Pennsylvania College of Technology

    EIN 232564508 · Headquarters: WILLIAMSPORT, PA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  46. Pennsylvania College of Technology Community Arts Center Inc

    EIN 232617447 · Headquarters: Williamsport, PA, USA · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990

  47. Pennsylvania College of Technology Foundation Inc

    EIN 232186644 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Pennsylvania Doula Commission

    EIN 873533384 · Headquarters: Williamsport, PA, US · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  49. Pennsylvania Order of the Eastern Star Inc

    EIN 236393715 · Headquarters: Williamsport, PA, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  50. Pennsylvania State Grange of Patrons of Husbandry

    EIN 237518021 · Headquarters: WILLIAMSPORT, PA, US · Food, Agriculture & Nutrition · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  51. Pet Pantry of Lycoming County

    EIN 833551835 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Pgss Campaign Inc

    EIN 273095103 · Headquarters: Williamsport, PA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Phi Kappa Psi Fraternity

    EIN 510673604 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Phi Mu Delta Foundation

    EIN 346579245 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Phyllis M Briel Education Trust 230003

    EIN 204568543 · Headquarters: WILLIAMSPORT, PA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  56. Pine Glen Treatment Trust 890012

    EIN 817065374 · Headquarters: WILLIAMSPORT, PA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Plunketts Creek Township Fire Depar

    EIN 237152260 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Post 1 Home Association Inc

    EIN 232789516 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Preservation of Williamsport Foundation Inc

    EIN 232603789 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Preventing Teen Pregnancy Inc

    EIN 232585359 · Headquarters: Williamsport, PA, US · Crime & Legal Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  61. Proctor Community Association

    EIN 232803666 · Headquarters: Williamsport, PA, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  62. Project Bald Eagle Inc

    EIN 473821707 · Headquarters: Williamsport, PA, US · Mental Health & Crisis Intervention · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  63. Project Impact Bridge Haven Inc

    EIN 233013569 · Headquarters: WILLIAMSPORT, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Project Roc Inc

    EIN 863152996 · Headquarters: WILLIAMSPORT, PA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Prosperous Promise Inc

    EIN 934170732 · Headquarters: Williamsport, PA, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Providence Cancer Treatment Services Inc

    EIN 232925354 · Headquarters: Williamsport, PA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2009 · Primary form: IRS Form 990

  67. Psi Chi the National Honor Society in Psychology

    EIN 232012084 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Pta Pennsylvania Congress

    EIN 463488216 · Headquarters: Williamsport, PA, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  69. Public Art Academy

    EIN 232979429 · Headquarters: WILLIAMSPORT, PA, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. Quaker Hill Cemetery Inc

    EIN 236449238 · Headquarters: WILLIAMSPORT, PA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Recovery Community Connection

    EIN 821537022 · Headquarters: Williamsport, PA, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Red Chimney Hunting Lodge

    EIN 300487202 · Headquarters: Williamsport, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Red Fox Hunting and Fishing Club

    EIN 232047833 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Remis Purpose Inc

    EIN 843988852 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Repasz Band Inc

    EIN 232867511 · Headquarters: WILLIAMSPORT, PA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Republican League Inc

    EIN 240702180 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. River Valley Church

    EIN 232071747 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  78. River Valley Health

    EIN 208979596 · Headquarters: WILLIAMSPORT, PA, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Roads to Freedom

    EIN 271591708 · Headquarters: WILLIAMSPORT, PA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Roaring Run Hunting & Fishing Club

    EIN 232256820 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Ross Club

    EIN 240707450 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990

  82. Rotary International

    EIN 246026112 · Headquarters: Williamsport, PA, US · Community Improvement & Capacity Building · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. Royal Arch Masons of Pennsylvania

    EIN 240708428 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Rvr Foundation Inc

    EIN 463245973 · Headquarters: WILLIAMSPORT, PA, USA · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990

  85. Saint Johns School of the Arts

    EIN 372070100 · Headquarters: WILLIAMSPORT, PA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Saltsgiver Family Foundation

    EIN 232803397 · Headquarters: WILLIAMSPORT, PA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  87. Saving Lives for Zachary Inc

    EIN 821093672 · Headquarters: williamsport, PA, US · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Second Chance Works Inc

    EIN 462827973 · Headquarters: WILLIAMSPORT, PA, USA · Employment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  89. Self Society Inc

    EIN 872906335 · Headquarters: Williamsport, PA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Service Corps of Retired Executives Association

    EIN 232577893 · Headquarters: Williamsport, PA, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  91. Sigma Nu Fraternity

    EIN 800179031 · Headquarters: Williamsport, PA, US · Education · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  92. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 232577677 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Sigma Pi Fraternity International Inc

    EIN 203684528 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sigma Thela Tau International

    EIN 320593101 · Headquarters: Williamsport, PA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Sky Haven Coal Company Irrevocable Trust

    EIN 207250750 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Sol Club Inc

    EIN 240710673 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  97. Sons of Italy in America

    EIN 240728850 · Headquarters: WILLIAMSPORT, PA, US · Mutual & Membership Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Sons of Italy in America

    EIN 330998569 · Headquarters: WILLIAMSPORT, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Sons of Italy Lodge 2786 Foundation

    EIN 473593794 · Headquarters: WILLIAMSPORT, PA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. South Williamsport Area Education Association

    EIN 364643185 · Headquarters: Williamsport, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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