Nonprofits in Maine

Nonprofits in Maine. Browse 13,476 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. Order of the Eastern Star of Maine

    EIN 237336453 · Headquarters: Jefferson, ME, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  2. Order of the Eastern Star of Maine

    EIN 237336460 · Headquarters: Kennebunkport, ME, US · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  3. Order of the Eastern Star of Maine

    EIN 237336463 · Headquarters: Windham, ME, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  4. Order of the Eastern Star of Maine

    EIN 237336464 · Headquarters: Bucksport, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Order of the Eastern Star of Maine

    EIN 237540286 · Headquarters: AUGUSTA, ME, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  6. Order of the Eastern Star of Maine

    EIN 237540298 · Headquarters: Clinton, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Order of the Eastern Star of Maine

    EIN 237540300 · Headquarters: Holden, ME, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  8. Order of the Eastern Star of Maine

    EIN 237540308 · Headquarters: Standish, ME, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  9. Order of the Eastern Star of Maine

    EIN 237540325 · Headquarters: Columbia Falls, ME, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  10. Order of the Eastern Star of Maine

    EIN 237540330 · Headquarters: Skowhegan, ME, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  11. Order of the Eastern Star of Maine

    EIN 237540344 · Headquarters: Mount Vernon, ME, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  12. Order of the Eastern Star of Maine

    EIN 237540345 · Headquarters: Litchfield, ME, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  13. Order of the Eastern Star of Maine

    EIN 237540347 · Headquarters: Thomaston, ME, US · Mutual & Membership Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  14. Order of the Eastern Star of Maine

    EIN 237540354 · Headquarters: Solon, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Order of the Eastern Star of Maine

    EIN 237540356 · Headquarters: Stratton, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Order of the Eastern Star of Maine

    EIN 237540369 · Headquarters: Sherman, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Order of the Eastern Star of Maine

    EIN 237540372 · Headquarters: Stockholm, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Order of the Eastern Star of Maine

    EIN 237540376 · Headquarters: Canaan, ME, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Order of the Eastern Star of Maine

    EIN 237540378 · Headquarters: Harrison, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Order of the Eastern Star of Maine

    EIN 237540386 · Headquarters: New Gloucester, ME, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  21. Order of the Eastern Star of Maine

    EIN 237540388 · Headquarters: Readfield, ME, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  22. Order of the Eastern Star of Maine

    EIN 237540413 · Headquarters: Edmunds, ME, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  23. Order of the Eastern Star of Maine

    EIN 237540419 · Headquarters: Belmont, ME, US · Mutual & Membership Benefit · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  24. Organic Seed Growers and Trade Association

    EIN 261772199 · Headquarters: Palermo, ME, US · Food, Agriculture & Nutrition · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Organization for Transformative Farming

    EIN 331081637 · Headquarters: Portland, ME, US · Food, Agriculture & Nutrition · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  26. Organization for Watershed Living

    EIN 300037825 · Headquarters: Linneus, ME, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. Orient Food Pantry

    EIN 473699083 · Headquarters: Orient, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Orland Historical Society Inc

    EIN 237383728 · Headquarters: Orland, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Ornamental Horticulture Council

    EIN 562541810 · Headquarters: Augusta, ME, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  30. Ornithological Council

    EIN 521793547 · Headquarters: Bar Harbor, ME, USA · Animal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Orono Economic Development Corp

    EIN 010535770 · Headquarters: ORONO, ME, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Orono Firefighters Association

    EIN 010428520 · Headquarters: ORONO, ME, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  33. Orono Health Association

    EIN 010288129 · Headquarters: ORONO, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Orono High School Alumni Association

    EIN 743177435 · Headquarters: Orono, ME, US · Education · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  35. Orono Historical Society

    EIN 222487983 · Headquarters: Orono, ME, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Orono Land Trust

    EIN 010417249 · Headquarters: ORONO, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Orono Paddlers

    EIN 813040760 · Headquarters: Orono, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Orono Partners in Education

    EIN 464871102 · Headquarters: Brewer, ME, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. Orono Pride

    EIN 853991228 · Headquarters: Orono, ME, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  40. Orono Public Library Foundation

    EIN 270062690 · Headquarters: Orono, ME, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Orono Village Association

    EIN 010537623 · Headquarters: Orono, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  42. Orono Youth Football

    EIN 352566721 · Headquarters: Veazie, ME, US · Youth Development · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  43. Orono-old Town Kiwanis Charities

    EIN 010493513 · Headquarters: ORONO, ME, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Orphans Ransom

    EIN 272860898 · Headquarters: Orrington, ME, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  45. Orr's & Bailey Islands Fire Department

    EIN 010421974 · Headquarters: Orrs Island, ME, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Orrington Fire & Rescue Association

    EIN 273209723 · Headquarters: Orrington, ME, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Orrington Historical Society

    EIN 453506328 · Headquarters: Orrington, ME, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Orrington Housing Corp

    EIN 010357799 · Headquarters: BANGOR, ME, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Orrington Teachers Association

    EIN 010511601 · Headquarters: Orrington, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Orrington Trail Riders Inc

    EIN 010443126 · Headquarters: Orrington, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Orrs Bailey Yacht Club

    EIN 016015613 · Headquarters: Orrs Island, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  52. Orrs Island Cemetery Association Inc

    EIN 016015556 · Headquarters: Orrs Island, ME, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Orrs Island Library Inc

    EIN 016017260 · Headquarters: ORRS ISLAND, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Orrs Island Meeting House Inc

    EIN 833797696 · Headquarters: Orrs Island, ME, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Ossipee Lake Association

    EIN 262874130 · Headquarters: East Waterboro, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Ossipee Mountain Atv Ers

    EIN 204657552 · Headquarters: East Waterboro, ME, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Ossipee Mountaineers Snowmobile Club

    EIN 453658910 · Headquarters: East Waterboro, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Ossipee Valley Agricultural Society

    EIN 010350004 · Headquarters: NEWFIELD, ME, USA · Food, Agriculture & Nutrition · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Ossipee Valley Christian School

    EIN 010532219 · Headquarters: Cornish, ME, United States · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Osteoporosis Health Care Network

    EIN 010527993 · Headquarters: Portland, ME, US · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  61. Other Maine Program of Aid For

    EIN 921692257 · Headquarters: HOULTON, ME, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Otis Historical Society

    EIN 510537096 · Headquarters: Otis, ME, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Otisfield Historical Society

    EIN 010376940 · Headquarters: Otisfield, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Otisfield Volunteer Firefighters

    EIN 760812454 · Headquarters: Otisfield, ME, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Oto Hockey Boosters

    EIN 332663499 · Headquarters: Orono, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Otto & Fran Walter Foundation Inc

    EIN 131625529 · Headquarters: BOOTHBAY HARBOR, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  67. Otuho - Speaking Community of North America

    EIN 260401546 · Headquarters: Portland, ME, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Our Climate Common

    EIN 862727154 · Headquarters: Georgetown, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Our Community

    EIN 472638068 · Headquarters: Portland, ME, US · Mental Health & Crisis Intervention · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  70. Our Community Pto

    EIN 465384104 · Headquarters: Bucksport, ME, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Our Fathers House

    EIN 264438163 · Headquarters: SACO, ME, USA · Mental Health & Crisis Intervention · Latest available filing year: 2014 · Primary form: IRS Form 990

  72. Our Future

    EIN 813590869 · Headquarters: Sanford, ME, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  73. Our Heros Military Museum

    EIN 882923710 · Headquarters: Lincoln, ME, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Our Island Cares

    EIN 301143774 · Headquarters: Vinalhaven, ME, US · Mental Health & Crisis Intervention · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. Our Katahdin

    EIN 472382072 · Headquarters: Millinocket, ME, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Our Katahdin Capital

    EIN 810826772 · Headquarters: Millinocket, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Our Ladakhi Sisters

    EIN 472527145 · Headquarters: Durham, ME, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. Our Lady of Mt Carmel

    EIN 010340559 · Headquarters: Biddeford, ME, US · Religion Related · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  79. Our Place Portland Inc

    EIN 883309336 · Headquarters: SCARBOROUGH, ME, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. Our Town Belfast

    EIN 273453233 · Headquarters: Belfast, ME, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Our Town Leeds

    EIN 923801857 · Headquarters: Leeds, ME, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Our Voice USA

    EIN 831332138 · Headquarters: Portland, ME, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  83. OUT Maine

    EIN 203682307 · Headquarters: Rockland, ME, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Out There Theater Company Inc

    EIN 992320568 · Headquarters: Portland, ME, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Outdoor Sport Institute Inc

    EIN 465191858 · Headquarters: CARIBOU, ME, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Outdoors Again

    EIN 454804132 · Headquarters: WATERBORO, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Outlaws Lacrosse

    EIN 923719930 · Headquarters: Waterville, ME, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  88. Outside of the Box

    EIN 824572758 · Headquarters: FRIENDSHIP, ME, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  89. Outward Bound Sea School Dba Hurricane Island Outward Bound Schl

    EIN 453483368 · Headquarters: CAMDEN, ME, USA · Education · Latest available filing year: 2013 · Primary form: IRS Form 990

  90. Over the Hill Atv Riders

    EIN 421702624 · Headquarters: West Bath, ME, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Overlook Tennis Club

    EIN 010509980 · Headquarters: Boothbay, ME, US · Recreation & Sports · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. Owen Ministries Inc

    EIN 882597904 · Headquarters: Hermon, ME, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  93. Owls Head Garden Club

    EIN 474923690 · Headquarters: OWLS HEAD, ME, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  94. Owls Head Village Library Association

    EIN 016020157 · Headquarters: Owls Head, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Owls Head Volunteer Fire Co Inc

    EIN 016023628 · Headquarters: Owls Head, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Oxbow Community Center Inc

    EIN 993945539 · Headquarters: Oxbow, ME, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Oxford Baseball Softball Association

    EIN 800621893 · Headquarters: Oxford, ME, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  98. Oxford Council Number 14 R &Sm

    EIN 800595367 · Headquarters: Peru, ME, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  99. Oxford County Agricultural Society

    EIN 010133442 · Headquarters: NORWAY, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Oxford County Council American Legion Auxiliary

    EIN 300830075 · Headquarters: Mason Twp, ME, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

First page and all pages