Environment nonprofits in Maryland
Environment nonprofits in Maryland. Browse 696 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
- Hyattsville Chapter Izaak Walton League of America Inc
EIN 526044356 · Headquarters: Bowie, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Hyattsville Horticultural Society
EIN 260871755 · Headquarters: Hyattsville, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Inclusive Clean Energy for Those Underserved
EIN 932894311 · Headquarters: Bowie, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Infinity Recycling Inc
EIN 521625681 · Headquarters: Millington, MD, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990
- Interfaith Coalition for the Environment
EIN 522127265 · Headquarters: Greenbelt, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Interfaith Partners for the Chesapeake Inc
EIN 463399793 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Association of Forensic Nurses
EIN 341911737 · Headquarters: Elkridge, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Society of Tropical Foresters
EIN 521194548 · Headquarters: Bethesda, MD, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- IOOS Association
EIN 274702525 · Headquarters: Silver Spring, MD, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Irvine Natural Science Center Inc
EIN 521231286 · Headquarters: OWINGS MILLS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Iucn Academy of Environment Law Ltd
EIN 814660066 · Headquarters: BALTIMORE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Izaak Walton League of America - Rockville Chapter
EIN 521481039 · Headquarters: Germantown, MD, United States · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- John Penn Whitescarversrfoundation Inc
EIN 656296442 · Headquarters: BEL AIR, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- John Street Park Association
EIN 521648021 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Keep Kent Scenic Inc
EIN 473751617 · Headquarters: CHESTERTOWN, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Keep Somerset Beautiful
EIN 834391200 · Headquarters: westover, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Keep Washington Dc Beautiful Inc C/o Ellen Valentino
EIN 522195577 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kensington Land Trust Inc
EIN 521792592 · Headquarters: Kensington, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Kent Island Beach Cleanups Inc
EIN 465587024 · Headquarters: STEVENSVILLE, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kent Island Community Garden
EIN 994984242 · Headquarters: CHESTER, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kent Narrows Development Foundation
EIN 521696167 · Headquarters: CHESTER, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kids for a Cleaner Baltimore Inc
EIN 883397768 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Koolhof Earth Inc
EIN 270838831 · Headquarters: Pasadena, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Lake Linganore Conservation Society Inc
EIN 311625449 · Headquarters: New Market, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Lakenet
EIN 521155784 · Headquarters: Annapolis, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Land and Cultural Preservation Fund Inc
EIN 260549905 · Headquarters: WALKERSVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Land Preservation Trust Inc
EIN 521465309 · Headquarters: COCKEYSVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Lands Across America Foundation Inc
EIN 261187451 · Headquarters: WALDORF, MD, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Laurel for the Patuxent
EIN 852826923 · Headquarters: Laurel, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Lead Manage Conserve Inc
EIN 990925258 · Headquarters: Chevy Chase, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Leadership Training Institute
EIN 521970091 · Headquarters: Seat Pleasant, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Life4sofala Foundation Inc
EIN 451632914 · Headquarters: Cambridge, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Little Falls Watershed Alliance Inc
EIN 262612775 · Headquarters: Chevy Chase, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Little Magothy River Association Inc
EIN 010789733 · Headquarters: Annapolis, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Living Earth Oases Project Inc
EIN 472845285 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Long Green Valley Conservancy Inc
EIN 521950516 · Headquarters: Baldwin, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Lower Eastern Shore Sustainable Organic Network Inc
EIN 522422536 · Headquarters: Quantico, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Lower Shore Land Trust Inc
EIN 521701152 · Headquarters: SNOW HILL, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Lower Shore Rural Lending Corporation
EIN 521982310 · Headquarters: GLEN BURNIE, MD, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990
- Lower Susquehanna Heritage Greenway
EIN 311542913 · Headquarters: DARLINGTON, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Magothy River Association Inc
EIN 526054290 · Headquarters: Severna Park, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Magothy River Land Trust Inc
EIN 521749076 · Headquarters: Severna Park, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Majorityaction
EIN 821105809 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Malachi Water Wind Woods Foundation Inc
EIN 331251374 · Headquarters: REISTERSTOWN, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Marec Action
EIN 832909587 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Maritimas
EIN 823786951 · Headquarters: Edgewater, MD, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Marshy Point Nature Center Council
EIN 522279092 · Headquarters: Middle River, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Marumsco Creek Wildlife Foundation Inc
EIN 521741284 · Headquarters: POCOMOKE CITY, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Maryland Chapter of the American Chestnut Foundation Inc
EIN 061718049 · Headquarters: Takoma Park, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maryland City Communities Association Inc
EIN 462003638 · Headquarters: LAUREL, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Maryland Coastal Bays Foundation Inc
EIN 522123356 · Headquarters: BERLIN, MD, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Maryland Conservation Council Inc
EIN 237001631 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Maryland Eastern Shore Rc&d Council Inc
EIN 521785879 · Headquarters: CHESTER, MD, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ
- Maryland Energy Conservation Inc
EIN 521928626 · Headquarters: FALLSTON, MD, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990
- Maryland Forestry Boards Foundation Inc
EIN 521694086 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Maryland Forests Association Inc
EIN 521244115 · Headquarters: Linkwood, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Maryland Heartland Sustainable Living Fair Inc
EIN 113835517 · Headquarters: Westminster, MD, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Maryland League of Conservation Voters Education Fund Inc
EIN 522210858 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Maryland Orchid Society Inc
EIN 521145937 · Headquarters: Mount Airy, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Maryland State Game and Fish Protective Association Inc
EIN 810570116 · Headquarters: Perry Hall, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Maryland State Geographic Information Committee Ltd
EIN 455200482 · Headquarters: Crownsville, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Maryland Stream Restoration Association
EIN 262223076 · Headquarters: Gambrills, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maryland Wildlife Crime Stoppers Inc
EIN 823976378 · Headquarters: Annapolis, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maryland-dc Composting Council
EIN 934825216 · Headquarters: Cockeysville, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mason Springs Conservancy Inc
EIN 651270984 · Headquarters: Waldorf, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Mattawoman Watershed Society
EIN 261836641 · Headquarters: Accokeek, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Mdv Solar Schools Foundation Inc
EIN 522285973 · Headquarters: Reisterstown, MD, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Me Society
EIN 923127904 · Headquarters: Gaithersburg, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Meade Natural Heritage Association
EIN 521836657 · Headquarters: SEVERN, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Mid Atlantic Region Environmental Professionals
EIN 800730107 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Mid Atlantic Regional Air Management Association Inc
EIN 412207612 · Headquarters: TOWSON, MD, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Mid-atlantic Renewable Energy Coalition
EIN 270971686 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mid-Maryland Land Trust Association Inc
EIN 522179158 · Headquarters: FREDERICK, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Middletown Valley Community Garden Association Inc
EIN 270674240 · Headquarters: Middletown, MD, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Mindful Maryland
EIN 991904158 · Headquarters: Bowie, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Minnies Island Community Conservation Co
EIN 863038195 · Headquarters: Cabin John, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Minorities in Aquaculture
EIN 851764271 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Misty of Chincoteague Foundation
EIN 541528615 · Headquarters: SOLOMONS, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mobilize Frederick Inc
EIN 920984021 · Headquarters: FREDERICK, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Montgomery County Green Bank Corporation
EIN 812179565 · Headquarters: Rockville, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Montgomery Environmental Services Inc
EIN 273378074 · Headquarters: Frederick, MD, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Moonshot Missions Inc
EIN 872485211 · Headquarters: Bethesda, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mother Earth Project Incorporated
EIN 824484785 · Headquarters: Chevy Chase, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Muddy Branch Alliance Inc
EIN 452490551 · Headquarters: Gaithersburg, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- My Own Climate Change Inc
EIN 842404856 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Nanjemoy Vision Inc
EIN 320078019 · Headquarters: Nanjemoy, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nanjemoy-potomac Enviromental Coalition Inc
EIN 522249581 · Headquarters: Nanjemoy, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Insurance Women
EIN 237276228 · Headquarters: Delmar, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- National Council on Radiation Protection & Measurements
EIN 520806696 · Headquarters: BETHESDA, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Energy and Water Infrastructure Exchange
EIN 814545708 · Headquarters: Bethesda, MD, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- National Marine Sanctuary Foundation
EIN 943370994 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Park Trust Inc
EIN 521691924 · Headquarters: ROCKVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Turfgrass Evaluation Program Inc
EIN 521744502 · Headquarters: BELTSVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Native Footprint Inc
EIN 823342734 · Headquarters: Sparks Glencoe, MD, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Native Grassland Conservancy Inc
EIN 260593495 · Headquarters: Upper Marlboro, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Nature Forward
EIN 530233715 · Headquarters: Chevy Chase, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ncr Hereford Volunteers Association Inc of Gunpowder Falls State Park
EIN 521943105 · Headquarters: Monkton, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Neeld Estate Citizens Association
EIN 800675381 · Headquarters: HUNTINGTOWN, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Neighbors of the Northwest Branch Inc
EIN 200491803 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Neighborspace of Baltimore County Inc
EIN 412096888 · Headquarters: TOWSON, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990