Environment nonprofits in Maine

Environment nonprofits in Maine. Browse 497 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. Rockport Garden Center

    EIN 016044509 · Headquarters: ROCKPORT, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Royal River Conservation Trust

    EIN 010472430 · Headquarters: YARMOUTH, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Sabbath Day Lake Association

    EIN 010390612 · Headquarters: Gray, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Saco River Recreation Council

    EIN 582176144 · Headquarters: FRYEBURG, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Sandy River Waste Recycling Association

    EIN 010462165 · Headquarters: FARMINGTON, ME, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990

  6. Sanford-springvale Mousam Way Land Trust

    EIN 016157155 · Headquarters: SANFORD, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Save Our Shores Maine C/o Barbara Houlihan

    EIN 010495042 · Headquarters: WELLS, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Save the St Croix Fishery

    EIN 463256319 · Headquarters: Grand Lake Stream, ME, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  9. Savesebagocove

    EIN 261296579 · Headquarters: Naples, ME, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  10. Saving Maine

    EIN 464819013 · Headquarters: Owls Head, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Say No to Necec

    EIN 832673181 · Headquarters: New Gloucester, ME, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Scarborough Land Conservation Trust

    EIN 010352474 · Headquarters: Scarborough, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Schoodic Institute at Acadia National Park

    EIN 201054593 · Headquarters: WINTER HARBOR, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Sea Meadow Marine Foundation

    EIN 870873558 · Headquarters: Yarmouth, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Seads of Truth Inc

    EIN 113627696 · Headquarters: harrington, ME, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  16. Seal Harbor Village Improvement Society Inc

    EIN 010216941 · Headquarters: SEAL HARBOR, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Sebago Cove Preservation Association

    EIN 334665489 · Headquarters: Naples, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sebasticook Regional Land Trust

    EIN 202644192 · Headquarters: UNITY, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Sebasticook River Watershed Association

    EIN 010524866 · Headquarters: Pittsfield, ME, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  20. Sebec Lake Association

    EIN 920694548 · Headquarters: Dover Foxcroft, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Second Chance Wildlife Inc

    EIN 352334498 · Headquarters: New Sharon Maine, ME, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. Seed Tree Inc

    EIN 010504734 · Headquarters: STOCKTON SPGS, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Seedmoney

    EIN 562389230 · Headquarters: Scarborough, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Seeds of Self Reliance

    EIN 261887076 · Headquarters: Waldoboro, ME, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  25. Shaw Institute

    EIN 010455007 · Headquarters: BLUE HILL, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Sheepscot Lake Association

    EIN 273341650 · Headquarters: Palermo, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Silver Lake Camp Owners Assoc Charter 19480006Nd

    EIN 900591846 · Headquarters: Roxbury, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Skutik River Restoration Trust

    EIN 920417576 · Headquarters: Portland, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Sly Brook Adventures

    EIN 833348684 · Headquarters: Eagle Lake, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Small Woodland Owners Association of Maine

    EIN 010360072 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Society for Human Ecology

    EIN 010484578 · Headquarters: Bar Harbor, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Somerset Woods Trustees

    EIN 016016350 · Headquarters: SKOHEGAN, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Southern Maine Daylily Society

    EIN 991994401 · Headquarters: West Newfield, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Sportsmen Inc

    EIN 300663976 · Headquarters: Stockholm, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Square Pond Improvement Association

    EIN 800229935 · Headquarters: Shapleigh, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Squirrel Island Preservation Foundation C/o Pierce Atwood LLP

    EIN 222875544 · Headquarters: Portland, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. St Croix International Waterway Commission

    EIN 010451745 · Headquarters: CALAIS, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. St John-aroostook Rc & D

    EIN 010347484 · Headquarters: Fort Fairfield, ME, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Star City Atv Club

    EIN 010543482 · Headquarters: PRESQUE ISLE, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Stewards of the Earth Inc

    EIN 562121655 · Headquarters: BROOKSVILLE, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Stewardship Education Alliance

    EIN 844323595 · Headquarters: Camden, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Strathglass Park Preservation Society

    EIN 263620780 · Headquarters: Rumford, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Sustain Mid Maine Coalition

    EIN 272805120 · Headquarters: Waterville, ME, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  44. Tacoma Lakes Association

    EIN 010346158 · Headquarters: LITCHFIELD, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Taylor Pond Association

    EIN 010517559 · Headquarters: AUBURN, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. The Allagash Wilderness Waterway Foundation

    EIN 453597466 · Headquarters: FORT KENT, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. The Association of State Wetland Managers Inc

    EIN 030303870 · Headquarters: Portland, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. The Conservation Trust of Brooksville Castine & Penobscot

    EIN 010357548 · Headquarters: CASTINE, ME, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990

  49. The Ellsworth Garden Club

    EIN 010395417 · Headquarters: Ellsworth, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. The Garden Club Federation of Maine Inc

    EIN 010843620 · Headquarters: KITTERY, ME, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. The Kennebec Land Trust

    EIN 010440729 · Headquarters: WINTHROP, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. The McLaughlin Foundation Inc

    EIN 010509638 · Headquarters: South Paris, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. The Moosehead Outdoor Alliance

    EIN 853435339 · Headquarters: GREENVILLE, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Thomas Pond Improvement Association

    EIN 993243037 · Headquarters: South Casco, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Thomaston Garden Club

    EIN 861659095 · Headquarters: Thomaston, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Thompson Lake Environmental Association Inc

    EIN 222823791 · Headquarters: OXFORD, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Three Rivers Land Trust

    EIN 010539771 · Headquarters: ALFRED, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Tidelands Coalition Inc

    EIN 811681159 · Headquarters: Brunswick, ME, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  59. Tidewater Conservation Foundation

    EIN 205720489 · Headquarters: Portland, ME, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  60. Timber Point Center

    EIN 461929990 · Headquarters: Biddeford, ME, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  61. Time & Tide Resource Conservation and Development Area

    EIN 010357901 · Headquarters: AUGUSTA, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Toddy Pond Association

    EIN 270647860 · Headquarters: Blue Hill, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Toothaker Pond Association

    EIN 593840438 · Headquarters: Auburn, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Torsey Pond Association

    EIN 371791409 · Headquarters: Mount Vernon, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Triceratops Group

    EIN 352739311 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Trickey Pond Environmental Protection Association Inc

    EIN 753222584 · Headquarters: Naples, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Tumbledown Conservation Alliance

    EIN 710899864 · Headquarters: Weld, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Twin Town Nature Club

    EIN 010386335 · Headquarters: OXFORD, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. Upper Cold Stream Pond Association

    EIN 263751385 · Headquarters: Lincoln, ME, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. Upper St John Land Tr

    EIN 223128967 · Headquarters: Fort Kent, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Upstream

    EIN 474968248 · Headquarters: Gardiner, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Upstream Watch

    EIN 832025742 · Headquarters: Belfast, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Viles Arboretum

    EIN 010387300 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Vinalhaven Land Trust Inc

    EIN 010416936 · Headquarters: VINALHAVEN, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Ward Pond Association

    EIN 010460601 · Headquarters: Sidney, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Washington Lakes Watershed Assoc

    EIN 464985588 · Headquarters: WASHINGTON, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Watchic Lake Association Inc

    EIN 261333099 · Headquarters: Standish, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Water Research Insitute of Blue Hill

    EIN 010474559 · Headquarters: Blue Hill, ME, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  79. Waterboro Land Trust Inc

    EIN 412206882 · Headquarters: North Waterboro, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. West Harbor Pond Watershed Association

    EIN 270902691 · Headquarters: West Boothbay Harbor, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Western Maine Audubon Society

    EIN 237255443 · Headquarters: Farmington, ME, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  82. Wild Seed Project

    EIN 465759154 · Headquarters: North Yarmouth, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Wilder Waters Community

    EIN 822053464 · Headquarters: Canton, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Wilderness Guides Outdoor Education Fund

    EIN 452591069 · Headquarters: Dresden, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Wildlife Research Foundation

    EIN 453657555 · Headquarters: Canaan, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Wildwood Marsh Conservancy

    EIN 392868658 · Headquarters: Leeds, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Windham Land Tr

    EIN 016162670 · Headquarters: Windham, ME, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  88. Womens Community Garden Club

    EIN 010392983 · Headquarters: Dover Foxcroft, ME, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  89. Wood Island Life Saving Station Association

    EIN 453543669 · Headquarters: Kittery Point, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  90. Woodie Wheaton Land Trust C/o Jeff Ketchum

    EIN 010494342 · Headquarters: FOREST CITY, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Woods End Agricultural Institute

    EIN 010369823 · Headquarters: Mt Vernon, ME, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  92. Woods Pond Water Quality Association

    EIN 813550835 · Headquarters: Bridgton, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. World Mine Tailings Failures

    EIN 833883531 · Headquarters: Stonington, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. World Ocean Observatory

    EIN 465693943 · Headquarters: SEDGWICK, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Worldview Xr

    EIN 392168785 · Headquarters: Casco, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Worromontogus Lake Association

    EIN 611613366 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. York Land Trust

    EIN 222793161 · Headquarters: YORK, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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