Environment nonprofits in District of Columbia
Environment nonprofits in District of Columbia. Browse 462 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
- Friends of Tait Park Inc
EIN 522237874 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Friends of the Book Hill Park
EIN 522295885 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Friends of the Earth
EIN 237420660 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Friends of the National Arboretum
EIN 521257712 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Friends of the Osa
EIN 810621147 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Friends of the Tenth Street Park
EIN 263727032 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Friends of Theghana Heritage Conservation Trust Incorporated
EIN 522447248 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Friends of Theodore Roosevelt Island Inc
EIN 474150531 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Fund for Kalorama Park Inc
EIN 521963554 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Fusion Industry Association
EIN 863094674 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Futuregen Industrial Alliance
EIN 510552070 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990
- Gaia Amazon Fund
EIN 261481434 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Gateway Research Institute
EIN 612327760 · Headquarters: Washington DC, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- George Washington Carver Outdoor School Inc
EIN 522055440 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Georgetown Garden Club C/o Liz Shriver
EIN 521345780 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Georgetown Reuse
EIN 920554687 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Global Carbon Management Foundation
EIN 873917714 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Global Coalition for Lake Tana Restoration
EIN 822491718 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Global Fishing Watch Inc
EIN 815461345 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Global Forest Foundation
EIN 522170756 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Global Sustainable Tourism Council
EIN 461050633 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Goelectricdrive Foundation
EIN 461006852 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Gorail
EIN 352226505 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Great Barrier Reef Foundation USA
EIN 833342642 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greater Brookland Garden Club
EIN 510501108 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Greater Washington Region Clean Cities Coalition
EIN 273768863 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990
- Green 20
EIN 465220283 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Green Field Community Garden
EIN 812939514 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Green Seal Inc
EIN 133553974 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greenlight Action
EIN 991075806 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greenlight America
EIN 921803557 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greenpeace Fund
EIN 953313195 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greenseed Community Garden Land Trust
EIN 453176500 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Greenunity Ukraine
EIN 934693971 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Grid 21
EIN 452491274 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Groundswell
EIN 270201126 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Groundwork Anacostia River DC
EIN 270501821 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990
- Guerrilla Gardeners of Washington Dc
EIN 842955257 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hampshire Research Institute Inc
EIN 541410590 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Hill East Community Garden
EIN 113808226 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hyo Jeong International Foundation for Environmental Peace (HJIFEP)
EIN 821898138 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Illumi-nation Global Inc
EIN 922982732 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Indicia Community
EIN 811190381 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Institute for Energy Research
EIN 760149778 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Institute for Market Transformation
EIN 943241464 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Int'l Union for Conservation of Nature & Natural Resources - Us
EIN 521443147 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- International Conservation Caucus Foundation
EIN 830449176 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Federation of Landscape Architects Americas Regi
EIN 923865215 · Headquarters: Washington DC, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Intersections Inc
EIN 800675701 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Island Press
EIN 942578166 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Justice Climate Fund Inc
EIN 931360335 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Khumbu Research Center Charitable Foundation
EIN 850899793 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF
- Kingman Park Civic Association Environmental Project Inc
EIN 522001633 · Headquarters: Washington DC, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Knollwood Neighbors
EIN 200405145 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Land Trust Accreditation Commission
EIN 204622209 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Land Trust Alliance
EIN 042751357 · Headquarters: WASHINGTON, DC, United States · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- League of Conservation Voters Education Fund
EIN 521379661 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Lumber and Building Materials Institute
EIN 522254062 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Macarthur Beautification Group
EIN 371444771 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Mamie D Lee Garden Association
EIN 472680536 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Manu
EIN 921082027 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Marine Debris Foundation
EIN 884011690 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Mighty Earth Inc
EIN 844785944 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mission Possible Partnership USA Inc
EIN 872398379 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Moabi Inc
EIN 472517517 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Mobilizegreen Inc
EIN 273968567 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Morris Louis Conservation Fund Inc
EIN 522322473 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-PF
- Mycological Association of Washington Inc
EIN 522142564 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Association of Clean Air Agencies Inc
EIN 421708016 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of Conservation Districts
EIN 741162773 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Association of Local Government Environmental Professionals
EIN 521878143 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- National Association of Railroad Passengers
EIN 362615221 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Association of State Foresters Foundation
EIN 411567714 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Audubon Society Action Fund
EIN 831280515 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Area Garden Club Inc
EIN 526050420 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Capital Region Section of the American Water Resources Assc
EIN 383786301 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National Center for Sustainable Development Inc
EIN 311778423 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- National Conservation Foundation
EIN 900136120 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Energy Assistance Directors Association
EIN 421445636 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Energy Resources Organization Inc
EIN 911850125 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Environmental Education and Training Foundation Inc
EIN 541557043 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- National Environmental Trust
EIN 521863706 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- National Environmental Trust Action Fund
EIN 521920216 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- National Fish Habitat Fund Inc
EIN 472547128 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- National Institute of Childrens Environments Inc
EIN 954151393 · Headquarters: Washington DC, DC, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- National Inter-tribal
EIN 825437364 · Headquarters: WASHINGTON, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- National League of American Pen Women Inc
EIN 911955192 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- National Parks Action Fund
EIN 810773791 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Parks Conservation Association
EIN 530225165 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- National Society Daughters of the American Colonists
EIN 310926804 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- National Society Daughters of the American Colonists
EIN 481109432 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- National Society Daughters of the American Colonists
EIN 911495618 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- National Waterways Foundation
EIN 521124026 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- National Wildlife Federation Action Fund
EIN 742556532 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Natural Products Association
EIN 952376719 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990
- Natural State Ltd
EIN 850544797 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Natures Partners Inc
EIN 043829146 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Net Zero
EIN 843583947 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Netcentric Campaigns
EIN 300166103 · Headquarters: Washington, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- New Columbia Audubon Society
EIN 521776220 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N