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
- Maine Wilderness Watershed Trust Inc Dba Pierce Pond Watershed Trust
EIN 010446281 · Headquarters: AUGUSTA, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Maine Wildlife Conservation Council
EIN 371798970 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Maine Woods Forever
EIN 203745501 · Headquarters: Kennebunkport, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maines Center for Sustainability
EIN 873569134 · Headquarters: South Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mainewatch Institute
EIN 010424818 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Maranacook Lake Association Inc
EIN 237411541 · Headquarters: Winthrop, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Marginal Way Preservation Fund
EIN 010957572 · Headquarters: OGUNQUIT, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mark Baumer Sustainability Fund
EIN 815131526 · Headquarters: Bryant Pond, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mcgrath Pond-salmon Lake Association Inc
EIN 311632505 · Headquarters: Oakland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Meddybemps Lake Land Trust
EIN 810816580 · Headquarters: Orono, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Medomak Valley Land Trust
EIN 223137506 · Headquarters: WALDOBORO, ME, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990
- Mensk
EIN 753118931 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Merrymeeting Bay Trust
EIN 276007257 · Headquarters: Arrowsic, ME, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990
- Mid-Maine Waste Action Corporation
EIN 042979746 · Headquarters: AUBURN, ME, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990
- Midcoast Conservancy
EIN 222658964 · Headquarters: Waldoboro, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Midcoast Trails Stewardship
EIN 991023003 · Headquarters: Rockland, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Momentum Conservation
EIN 455011505 · Headquarters: PORTLAND, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Monhegan Associates Inc
EIN 016013556 · Headquarters: CAPE ELIZABETH, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Moose Pond Association
EIN 270519466 · Headquarters: Bridgton, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Moosehead Region Futures Corporation
EIN 550902677 · Headquarters: Greenville, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Moosehead Regional Land Trust Inc
EIN 992443573 · Headquarters: Greenville Junction, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mountain Conservancy of Northern New England
EIN 464552909 · Headquarters: PHILLIPS, ME, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Mountain Division Alliance
EIN 200218321 · Headquarters: Fryeburg, ME, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Mousam Lake Region Association
EIN 222510524 · Headquarters: Springvale, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Municipal Review Committee Inc
EIN 010468832 · Headquarters: ORONO, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nals Inc
EIN 010477710 · Headquarters: Warren, ME, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Nals Inc
EIN 581767328 · Headquarters: Warren, ME, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Nanoq Guide Services & Survival Training
EIN 922940127 · Headquarters: Dover Foxcroft, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Naples Main Street Inc
EIN 452676643 · Headquarters: NAPLES, ME, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Nation Treasures
EIN 813027053 · Headquarters: SULLIVAN, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Environmental Training Association
EIN 351443962 · Headquarters: South Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Natural Resources Council of Maine Action Fund Inc
EIN 821044033 · Headquarters: Augusta, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Natural Resources Council of Maine Inc
EIN 010270690 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nature & Us
EIN 823272201 · Headquarters: Lewiston, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- New England Association of Resource Conserv & Develop Areas Inc
EIN 042755072 · Headquarters: GOULDSBORO, ME, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- New England Environmental Education Alliance Inc
EIN 252583006 · Headquarters: Cape Porpoise, ME, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- New England Environmental Resource Federation
EIN 263658770 · Headquarters: RICHMOND, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- New England Fishermens Foundation
EIN 934961392 · Headquarters: SOUTH PORTLAND, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- New England Garden Clubs
EIN 822261057 · Headquarters: Camden, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- New England Mineral Association
EIN 461771913 · Headquarters: Poland, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Nonesuch Land Trust
EIN 261996654 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- North Gorham Pond Invasive Plant Management Association
EIN 334658957 · Headquarters: Gorham, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- North Haven Conservation Partners
EIN 046830235 · Headquarters: NORTH HAVEN, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- North Pond Association Inc
EIN 020710289 · Headquarters: SMITHFIELD, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Norway-paris Fish & Game Assoc
EIN 237371431 · Headquarters: Norway, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oceanswide Inc
EIN 341988012 · Headquarters: NEWCASTLE, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Oceanus Intitute Inc
EIN 237167473 · Headquarters: Southwest Harbor, ME, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Old Surry Village Schoolhouse Preservation Group
EIN 812705160 · Headquarters: Surry, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- One Big Sustainable Island
EIN 453599222 · Headquarters: Monmouth, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- One Fish Foundation
EIN 473367582 · Headquarters: Yarmouth, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Organization for Watershed Living
EIN 300037825 · Headquarters: Linneus, ME, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Ornamental Horticulture Council
EIN 562541810 · Headquarters: Augusta, ME, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Our Climate Common
EIN 862727154 · Headquarters: Georgetown, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Owls Head Garden Club
EIN 474923690 · Headquarters: OWLS HEAD, ME, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Oxford Hills Community Gardens
EIN 272720573 · Headquarters: NORWAY, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Panther Pond Association
EIN 050530797 · Headquarters: Raymond, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Parker Pond Association Inc
EIN 016022776 · Headquarters: Vienna, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Partners of Union River
EIN 883098401 · Headquarters: Ellsworth, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- PassivhausMAINE
EIN 454864828 · Headquarters: Freeport, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pastoral Resources for Youth Ministry Encouragement
EIN 770381503 · Headquarters: ROCKLAND, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Peaks Environmental Action Team
EIN 264798430 · Headquarters: PEAKS ISLAND, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Peaks Island Land Preserve
EIN 010494267 · Headquarters: Peaks Island, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pemaquid Watershed Association
EIN 222508854 · Headquarters: Damariscotta, ME, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990
- Penobscot Bay Alliance
EIN 341983587 · Headquarters: North Haven, ME, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Penobscot Fly Fishers
EIN 223518950 · Headquarters: Brewer, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Penobscot River and Bay Institute
EIN 010478291 · Headquarters: Milford, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Penobscot River Paddling Trail
EIN 822547581 · Headquarters: RICHMOND, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Penobscot River Restoration Tr
EIN 201437259 · Headquarters: Augusta, ME, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990
- Penobscotsc1887
EIN 923555853 · Headquarters: Brewer, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Phillips Lake Association
EIN 800810889 · Headquarters: Dedham, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Phippsburg Land Trust
EIN 222996402 · Headquarters: PHIPPSBURG, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Physicians for a National Health Program
EIN 460964040 · Headquarters: Manchester, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Physicians for Social Responsibility Inc
EIN 010383549 · Headquarters: Augusta, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pleasant River Fish and Game Conservation Association Inc
EIN 010445484 · Headquarters: Columbia Falls, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Poland Garden Club
EIN 392527676 · Headquarters: Poland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Portland Trails
EIN 010463028 · Headquarters: PORTLAND, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Portsmouth Community Garden
EIN 871771230 · Headquarters: Kittery, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pownal Land Trust
EIN 010448194 · Headquarters: Pownal, ME, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Preserve Rural Maine
EIN 933170660 · Headquarters: Albion, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Presumpscot River Watch
EIN 223077936 · Headquarters: Windham, ME, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Property Owners of Lovewell Pond Association
EIN 010397504 · Headquarters: Fryeburg, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Protect Ancient Forests
EIN 874675216 · Headquarters: CAMDEN, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Protect Maine's Fishing Heritage Foundation
EIN 851101637 · Headquarters: PORTLAND, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Protect South Portland
EIN 463391435 · Headquarters: South Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Prouts Neck Conservancy
EIN 464909384 · Headquarters: SCARBOROUGH, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Quahog Bay Conservation
EIN 465144401 · Headquarters: Harpswell, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Raffy Memorial Wildlife Sanctuary and Nature Education Center Inc
EIN 237413401 · Headquarters: Porter, ME, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Range Ponds Association
EIN 010494738 · Headquarters: Poland Spring, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Rangeley Lakes Heritage Trust Inc
EIN 010472641 · Headquarters: RANGELEY, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Raymond Waterways Protective Association
EIN 900170146 · Headquarters: Raymond, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Repickle Project
EIN 331476594 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Repurposed Waders
EIN 994964069 · Headquarters: Yarmouth, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Resilience Hub
EIN 272042665 · Headquarters: Portland, ME, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Restoration Laos CO Michael Ambler
EIN 933782645 · Headquarters: Bath, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Reuse Me Inc
EIN 844455015 · Headquarters: South China, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Reverb Inc
EIN 201042256 · Headquarters: PORTLAND, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ripley Pond and Dam Association
EIN 992077044 · Headquarters: Vassalboro, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Roarke Regenerative Land Management
EIN 334826751 · Headquarters: SACO, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Robert and Patricia Switzer Foundation
EIN 341504501 · Headquarters: Belfast, ME, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Rock Haven Lake Association
EIN 453609719 · Headquarters: West Newfield, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N