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
- New Forest Society Inc
EIN 311771248 · Headquarters: Rocky Ridge, MD, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- New Israel American Education Fund Inc
EIN 845124544 · Headquarters: Bethesda, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- North American Environmental Center Inc
EIN 465371427 · Headquarters: Chevy Chase, MD, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- North County Land Trust Inc
EIN 522190520 · Headquarters: PASADENA, MD, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ
- North County Preservation Incorporated
EIN 201632677 · Headquarters: Monkton, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Nuclear Information and Resource Service
EIN 521119677 · Headquarters: Takoma Park, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Nunamaisha
EIN 832605847 · Headquarters: Gaithersburg, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Nurture Natives
EIN 931767907 · Headquarters: La Plata, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- O Lab Inc
EIN 415048683 · Headquarters: Takoma Park, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ocean City Reef Foundation Inc
EIN 522066987 · Headquarters: BERLIN, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ocean Research Project Inc
EIN 455439654 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- OceanitesInc
EIN 521530218 · Headquarters: Chevy Chase, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oceantic Network Inc
EIN 463553839 · Headquarters: BALTIMORE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Old-growth Forest Network Inc
EIN 454115570 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- One Montgomery Green Inc
EIN 452455470 · Headquarters: Silver Spring, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Opportunity Ministries Inc
EIN 454599833 · Headquarters: PASADENA, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Oregon Ridge Nature Center Council
EIN 521232428 · Headquarters: Cockeysville, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Our Last Straw Inc
EIN 831123690 · Headquarters: POTOMAC, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Our Zero Waste Future Incorporated
EIN 881264725 · Headquarters: Baltimore, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Partners for Livable Communities Inc
EIN 521107953 · Headquarters: Bethesda, MD, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Partners in Action Inc
EIN 463489483 · Headquarters: Olney, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Patuxent Tidewater Land Tr
EIN 522005066 · Headquarters: Leonardtown, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Pcs for All Inc
EIN 920599598 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Phi Alpha Delta Law Fraternity
EIN 912032999 · Headquarters: BALTIMORE, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Phi Alpha Delta Law Fraternity
EIN 943104031 · Headquarters: TOWSON, MD, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Phillips Wharf Environmental Center Inc
EIN 204519973 · Headquarters: Easton, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Piedmont Environmental and Education Foundation Inc
EIN 202728028 · Headquarters: BARNESVILLE, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Piedmont Learning Center Inc
EIN 823140204 · Headquarters: Gwynn Oak, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pike Foundation Inc
EIN 384236485 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pikesville Garden Club Inc
EIN 455432196 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Piscataway Land Trust Inc
EIN 933509008 · Headquarters: Fort Washington, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Plastic Free QAC Inc
EIN 831642273 · Headquarters: Grasonville, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Point Pleasant Foundation Inc
EIN 933388518 · Headquarters: BOZMAN, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Poolesville Green
EIN 272037666 · Headquarters: Poolesville, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Popstop Inc
EIN 522218959 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Port Tobacco River Conservancy Inc
EIN 364577137 · Headquarters: Port Tobacco, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Potomac Village Garden Club
EIN 272874903 · Headquarters: POTOMAC, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Prettyboy Watershed Alliance Inc
EIN 202334958 · Headquarters: COCKEYSVILLE, MD, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ
- Prince Georges Audubon Society Incorporated
EIN 521263258 · Headquarters: Bowie, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Proactive Science Inc
EIN 202847010 · Headquarters: LUSBY, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Project Green and Grey
EIN 475487306 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Project Green Smarts
EIN 271113162 · Headquarters: Hagerstown, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Project Green Sweep
EIN 333113988 · Headquarters: Potomac, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Public Employees for Environmental Responsibility Inc
EIN 931102740 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pull Tabs for Charity Inc
EIN 680626023 · Headquarters: bethesda, MD, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Queen Anne's Conservation Fund Inc
EIN 331153717 · Headquarters: CENTREVILLE, MD, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Rachel Carson Council Inc
EIN 526072960 · Headquarters: Bethesda, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Recycled Love Inc
EIN 201918175 · Headquarters: BALTIMORE, MD, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ
- Repowerus Inc
EIN 923621462 · Headquarters: Kensington, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Restoration Conservancy Inc
EIN 522171679 · Headquarters: Columbia, MD, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Restore the Climate Inc
EIN 993221468 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Restore the Earth Foundation Inc
EIN 272916940 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Return to Eden Corp
EIN 270945525 · Headquarters: Aquasco, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Reuse Development Organization Inc
EIN 522011384 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Revive Saree Corp
EIN 993448570 · Headquarters: Boyds, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rise N Shine Foundation Inc
EIN 843822442 · Headquarters: Clarksburg, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Rising Sun Cultural and Educational Programs Inc
EIN 521807174 · Headquarters: Bowie, MD, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ
- Rock Creek Conservancy Inc
EIN 203874333 · Headquarters: Bethesda, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Rockshire Garden Club
EIN 237345693 · Headquarters: Rockville, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Roland Park Community Foundation Inc
EIN 521479924 · Headquarters: BALTIMORE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Sassafras River Association Inc
EIN 841664388 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990
- Savage River Watershed Association Inc
EIN 208255870 · Headquarters: LAVALE, MD, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Save Dewey Beach Foundation Inc
EIN 863338700 · Headquarters: SANDY SPRING, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Save Our Sustainable Hyattsville
EIN 843033185 · Headquarters: Hyattsville, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Savefairhill Inc
EIN 203737661 · Headquarters: ELKTON, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Saving Grace Ministries in Christ
EIN 900410149 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Scenic Rivers Land Trust
EIN 521664141 · Headquarters: Annapolis, Maryland, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Schooner Time Inc
EIN 800400183 · Headquarters: Chestertown, MD, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-PF
- Seed of Life Nurseries Inc
EIN 274356750 · Headquarters: Frederick, MD, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Seneca Creek Watershed Partners Inc
EIN 300800055 · Headquarters: Gaithersburg, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Serenity Ridge Nature Preserve and Arboretum Inc
EIN 331332146 · Headquarters: Windsor Mill, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Shippers of Recycled Textiles Inc
EIN 521595998 · Headquarters: ABINGDON, MD, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ
- Shorerivers Inc
EIN 263187608 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Silver Spring Garden Club
EIN 526041979 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Silvoculture Inc
EIN 843382808 · Headquarters: FREDERICK, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Sligo Creek Neighbors for a Sustainable Community
EIN 464502322 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Slipper Orchid Alliance
EIN 680441901 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Slm Native Bloom Haven
EIN 413684608 · Headquarters: Laurel, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sludge Hub & Company
EIN 881358714 · Headquarters: Baltimore, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Smart-on-Smart
EIN 841990796 · Headquarters: Takoma Park, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Society Hill Garden Club of Breton Bay
EIN 921078464 · Headquarters: LEONARDTOWN, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Soil & Water Conservation Society Maryland Old Line Chapter
EIN 521702754 · Headquarters: La Plata, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Solar Freeze Inc
EIN 833401618 · Headquarters: Hyattsville, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Solhomes Inc
EIN 844458904 · Headquarters: Chevy Chase, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Solid Waste Association of North America
EIN 911027785 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Solutions From The Land
EIN 471216869 · Headquarters: Lutherville Timonium, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- South Arundel Citizens for Responsible Development Inc
EIN 521923453 · Headquarters: Chruchton, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- South County Exchange Inc
EIN 752979736 · Headquarters: LOTHIAN, MD, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Southern Calvert Land Tr Inc
EIN 522341301 · Headquarters: Lusby, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Southern Maryland Chapter of Izaak Walton League Inc
EIN 526113904 · Headquarters: WALDORF, MD, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990
- Southern Maryland Oyster Cultivation Society
EIN 412238504 · Headquarters: Lusby, MD, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Southern Maryland Rc&d Board Inc
EIN 521217054 · Headquarters: LEONARDTOWN, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spa Creek Conservancy Inc
EIN 412069559 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Spa Creek Youth Brigade Inc
EIN 850833500 · Headquarters: ANNAPOLIS, MD, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Species Survival Network
EIN 522133713 · Headquarters: Highland, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Spriggs Farm Preservation Foundation Inc
EIN 270304449 · Headquarters: Arnold, MD, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- St. Mary's River Watershed Association
EIN 202518203 · Headquarters: St. Mary's City, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Strong Mountains Early Learning Center Inc
EIN 010935542 · Headquarters: Upper Marlboro, MD, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Sugarloaf Alliance
EIN 471905011 · Headquarters: Frederick, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Sugarloaf Conservancy Inc
EIN 943462916 · Headquarters: Frederick, MD, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N