Environment nonprofits in Washington
Environment nonprofits in Washington. Browse 1,169 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
- Grays Harbor Audubon Society
EIN 943196453 · Headquarters: Montesano, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Grays Harbor Center for Educational Opportunity
EIN 800329954 · Headquarters: Aberdeen, WA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Great Peninsula Conservancy
EIN 911110978 · Headquarters: BREMERTON, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Greater New Northwest Healing Rooms and Deliverance Ministry
EIN 753232969 · Headquarters: EVERETT, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Greater Seattle District Wsfgc
EIN 273963196 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Greater Wenatchee Arbor Day
EIN 481294771 · Headquarters: CASHMERE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Green Journey
EIN 883018566 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Green Okanogan
EIN 272613885 · Headquarters: Tonasket, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Green River Coalition
EIN 451611154 · Headquarters: ENUMCLAW, WA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Green Vegans
EIN 270280239 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Green Zone Committee
EIN 911726488 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Green-duwamish Watershed Alliance
EIN 911695453 · Headquarters: tukwila, WA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Greenbank Garden Club
EIN 811000890 · Headquarters: GREENBANK, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Greenroads Foundation
EIN 273424584 · Headquarters: Redmond, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Greyowl Forest Restoration
EIN 994328761 · Headquarters: Normandy Park, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Grist Magazine Inc
EIN 061664153 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Ground2ground Glass
EIN 880690926 · Headquarters: WALLA WALLA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Groundwire
EIN 911972832 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990
- Grow It Forward Restoration
EIN 871848174 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Gue Seattle
EIN 454037998 · Headquarters: MERCER ISLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Guemes Island Environmental Trust
EIN 911693784 · Headquarters: Anacortes, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Guemes Island Planning Advisory
EIN 870709907 · Headquarters: Anacortes, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hanford Challenge Corporation
EIN 261382433 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Harbor Wildwatch
EIN 204205938 · Headquarters: GIG HARBOR, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hardy Plant Society of Washington
EIN 900507647 · Headquarters: Mountlake Terrace, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Harris Custer Estates Water
EIN 911180080 · Headquarters: Oak Harbor, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Hazelwood Heights Water Association
EIN 910904053 · Headquarters: Auburn, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Heartfield Learning Collective
EIN 933859189 · Headquarters: Greenbank, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Help Our Woods
EIN 261462210 · Headquarters: BOTHELL, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Heritage Gardens Trust
EIN 336317873 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Herons Forever
EIN 300885979 · Headquarters: SEATTLE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Highline Botanical Garden Foundation
EIN 311596850 · Headquarters: SeaTac, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Hilltop-locust Group
EIN 912171297 · Headquarters: Lynnwood, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Historic Seattle Preservation Foundation
EIN 911729777 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Hogback Basin Preservation Association
EIN 911912446 · Headquarters: yakima, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Hoh River Trust
EIN 900146828 · Headquarters: PORT ANGELES, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Holiday Acres Water Company
EIN 932378734 · Headquarters: TUMWATER, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Home Tissue Culture Group
EIN 260617532 · Headquarters: COLTON, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Homewhatcom - Homeowners Opposed to Mining Expansion
EIN 923628887 · Headquarters: Sumas, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Honey Bee Allies
EIN 824825009 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Hood Canal Environmental Council
EIN 911340399 · Headquarters: Seabeck, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Hood Canal Gravel Mine Opposition Association
EIN 831275560 · Headquarters: Belfair, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Hulda Klager Lilac Gardens
EIN 510192908 · Headquarters: Woodland, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- HVR Foundation
EIN 820902657 · Headquarters: Sequim, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- I Come to Talk Story
EIN 510588120 · Headquarters: OAK HARBOR, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Icarewecare
EIN 273722246 · Headquarters: Bellevue, WA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 208445857 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 263400113 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 263400183 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 263400236 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 475213861 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 721533026 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 900210054 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 900252330 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ice Age Floods Institute
EIN 911658221 · Headquarters: RICHLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Ifta Research Foundation
EIN 454035232 · Headquarters: KENNEIWCK, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Illahee Forest Preserve
EIN 300221632 · Headquarters: BREMERTON, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Indigenous Just Transition
EIN 994837385 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Initiative for Responsible Mining Assurance
EIN 841973536 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inland Empire Action Coalition
EIN 200855142 · Headquarters: Walla Walla, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Inland Northwest Chapter of Awma
EIN 263343336 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Inland Northwest Land Trust
EIN 911510539 · Headquarters: SPOKANE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Institute for Energy and Resource Management
EIN 853982195 · Headquarters: NEWCASTLE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Institute for Environmental Research and Education Inc
EIN 043378052 · Headquarters: Vashon, WA, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ
- Institute for Research and Technical Assistance
EIN 954253908 · Headquarters: Bothell, WA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Institute for Systemic Learning the Corporation
EIN 911659644 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Institute of Flight
EIN 201638987 · Headquarters: ARLINGTON, WA, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990
- International Marine Association Protecting Aquatic Life
EIN 943227856 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Irthlingz
EIN 300005803 · Headquarters: EASTSOUND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Island Affordable Housing Trust
EIN 205160723 · Headquarters: OAK HARBOR, WA, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990
- Island County Master Gardeners
EIN 911472569 · Headquarters: Coupeville, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Island Mantech
EIN 270838071 · Headquarters: VASHON, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Island Stewards
EIN 911264260 · Headquarters: olga, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Islands4kids
EIN 465112154 · Headquarters: REDMOND, WA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Islandwood
EIN 311654076 · Headquarters: BAINBRIDGE ISLAND, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Issaquah Environmental Council
EIN 200127697 · Headquarters: Issaquah, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Issaquah Garden Club
EIN 300155328 · Headquarters: Issaquah, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Itscool
EIN 900431711 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Izaak Walton League of America Inc
EIN 911593648 · Headquarters: Fox Island, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Izaak Walton League of America Inc
EIN 912125536 · Headquarters: Sammamish, WA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Jane Weber Evergreen Arboretum
EIN 461640055 · Headquarters: VANCOUVER, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Japanese Gulch Group
EIN 800167551 · Headquarters: SNOHOMISH, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Jefferson County Master Gardener Foundation
EIN 911656856 · Headquarters: Port Hadlock, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Jefferson Land Trust
EIN 911465078 · Headquarters: PORT TOWNSEND, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Just Step
EIN 832272271 · Headquarters: BELLEVUE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Just Transition Voters
EIN 920269853 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Keep Lakewood Beautiful
EIN 861143400 · Headquarters: Lakewood, WA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Kelsey Street Press
EIN 510150800 · Headquarters: Bellingham, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kenmore Community Garden
EIN 851539824 · Headquarters: KENMORE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kent Parks Foundation
EIN 800064905 · Headquarters: Kent, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Kettle Range Conservation Group
EIN 943175114 · Headquarters: REPUBLIC, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Khimstonik
EIN 881693596 · Headquarters: Toppenish, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Killer Whale Tales
EIN 200418896 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kilworth Environmental Education Preserve
EIN 845001769 · Headquarters: Federal Way, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- King County Iris Society
EIN 911307539 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kingston Garden Club
EIN 223861516 · Headquarters: Kingston, WA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Kitchen Garden Project Inc Garden-raised Bounty
EIN 911594312 · Headquarters: OLYMPIA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Kitsap Audubon Society
EIN 911288921 · Headquarters: POULSBO, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kitsap Citizens for Rural Preservation
EIN 911639826 · Headquarters: Port Orchard, WA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Kitsap County Dahlia Society
EIN 916059875 · Headquarters: Bremerton, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N