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
- Kitsap Environmental Coalition
EIN 831858726 · Headquarters: Indianola, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Kitsap Trees & Shoreline Association
EIN 510589880 · Headquarters: Bremerton, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kittitas County Conservation Coalition
EIN 830463911 · Headquarters: Easton, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Kittitas County Rodeo Grounds Fund
EIN 943170727 · Headquarters: ELLENSBURG, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Kittitas Environmental Education NETwork
EIN 223849021 · Headquarters: Ellensburg, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Klickitat Trail Conservancy Inc
EIN 830348712 · Headquarters: Lyle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kooskooskie Commons
EIN 911889153 · Headquarters: WALLA WALLA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kruckeberg Botanic Garden Foundation
EIN 911997091 · Headquarters: Shoreline, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Kuan-kuan Foundation
EIN 923697779 · Headquarters: Tumwater, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Kubota Garden Foundation
EIN 911451825 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Kuchipudi Konnect
EIN 331827311 · Headquarters: Kirkland, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kulshan Carbon Trust
EIN 863389232 · Headquarters: BELLINGHAM, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Kuril Islands Research & Conservation Initiative
EIN 844820664 · Headquarters: LK FOREST PK, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- L I G H T Foundation
EIN 873832254 · Headquarters: ELMER CITY, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Lacamas Watershed Council
EIN 872436416 · Headquarters: Camas, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Advocates
EIN 473933992 · Headquarters: Kingston, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Bonney Conservation Association
EIN 200829268 · Headquarters: Bonney Lake, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Lake Cavanaugh Trust
EIN 911687003 · Headquarters: EDMONDS, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Forest Park Garden Club
EIN 300646249 · Headquarters: Kenmore, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Forest Park Stewardship Foundation
EIN 911924333 · Headquarters: Kenmore, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Sawyer Park Foundation
EIN 270243022 · Headquarters: Black Diamond, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Spokane Association
EIN 273825974 · Headquarters: SPOKANE, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Wilderness Preservation Association
EIN 911636077 · Headquarters: MAPLE VALLEY, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lake Woods Ii Not for Profit
EIN 911659183 · Headquarters: EVERETT, WA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Lakeridge Garden Club
EIN 911530563 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lakeshore Garden Club
EIN 461338759 · Headquarters: Lake Forest Park, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Land-culture Project
EIN 911725748 · Headquarters: Pullman, WA, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Land-water Steward Association
EIN 911739378 · Headquarters: Renton, WA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Lavesta
EIN 992430841 · Headquarters: White Salmon, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Law Firm Sustainability Network
EIN 461334887 · Headquarters: GIG HARBOR, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Leading Harvest
EIN 843256336 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Leavenworth Recycles
EIN 571205164 · Headquarters: Leavenworth, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Legacy Forest Defense Coalition
EIN 921454220 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Less
EIN 365059243 · Headquarters: Bellevue, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lfp Climate Hub
EIN 394309638 · Headquarters: Kenmore, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lighthouse Environmental Programs
EIN 911678822 · Headquarters: Coupeville, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Live Ocean
EIN 271262601 · Headquarters: KIRKLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Livebright
EIN 821976208 · Headquarters: Bellevue, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Local Global Cooling
EIN 832836563 · Headquarters: Gig Harbor, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Logan Canyon Coalition
EIN 870558559 · Headquarters: Friday Harbor, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Lonesome Lake Preservation Group
EIN 800035329 · Headquarters: Maple Falls, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Long Lake Garden Club
EIN 911219427 · Headquarters: Manchester, WA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Loom a Foundation
EIN 943397399 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-PF
- Loon Lake Land Conservancy
EIN 820556313 · Headquarters: LOON LAKE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Loon Lake Loon Association
EIN 911310222 · Headquarters: LOON LAKE, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Loon Lake Property Owners Associati On
EIN 911914151 · Headquarters: Loon Lake, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lopez Community Swap Solid Waste Alternatives Program
EIN 454093547 · Headquarters: Lopez Island, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lopez Island Conservation Corps
EIN 270298012 · Headquarters: Lopez Island, WA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Love Our Earth
EIN 843717380 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lower Columbia Basin Audubon Society
EIN 911105996 · Headquarters: Richland, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Lower Columbia School Gardens
EIN 464549009 · Headquarters: LONGVIEW, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Lower Yakima Valley Trails and Recreational Pathway Foundation
EIN 943031390 · Headquarters: Sunnyside, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Luminous Ground Inc
EIN 461628412 · Headquarters: Battle Ground, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lummi Island Heritage Trust
EIN 911785342 · Headquarters: Lummi Island, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Made in Puget Sound
EIN 823386265 · Headquarters: Shoreline, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Magnuson Community Garden
EIN 912168172 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Magnuson Environmental Stewardship Alliance
EIN 300208053 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Makesoil Inc
EIN 824769177 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Managing Change Northwest
EIN 271239908 · Headquarters: PRESCOTT, WA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Mangrove Action Project
EIN 200833537 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Maple Falls Park Development and Maintenance Group
EIN 814745790 · Headquarters: Maple Falls, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maple Society of North America
EIN 300030518 · Headquarters: Port Angeles, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maple Trails Garden Club
EIN 900785886 · Headquarters: Maple Valley, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Marine Conservation Alliance
EIN 920175743 · Headquarters: MERCER ISLAND, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Marine Stewardship Council Limited
EIN 912018427 · Headquarters: Tukwila, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Marysville Community Parks Foundation
EIN 900897129 · Headquarters: MARYSVILLE, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Mason Community Land Trust
EIN 208211950 · Headquarters: Belfair, WA, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Mason County Climate Justice
EIN 922419503 · Headquarters: SHELTON, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mastate Charitable Foundation
EIN 201633894 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Master Contracting Stevedore Association of the Pacific Coast I
EIN 941531994 · Headquarters: SEATTLE, WA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Master Gardener Foundation of Benton-franklin County
EIN 020777791 · Headquarters: KENNEWICK, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Chelan -Douglas Counties
EIN 911960335 · Headquarters: Wenatchee, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Clallam County
EIN 911381140 · Headquarters: Sequim, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Cowlitz County
EIN 911930414 · Headquarters: Kelso, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Master Gardener Foundation of Grant-adams Counties
EIN 753211697 · Headquarters: EPHRATA, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Master Gardener Foundation of King County
EIN 911276424 · Headquarters: RENTON, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Master Gardener Foundation of Kitsap County
EIN 943049072 · Headquarters: SILVERDALE, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of San Juan County
EIN 464263338 · Headquarters: FRIDAY HARBOR, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Master Gardener Foundation of Spokane County
EIN 460925099 · Headquarters: SPOKANE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Thurston County
EIN 911898726 · Headquarters: OLYMPIA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Washington State
EIN 911148165 · Headquarters: YAKIMA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Whatcom County
EIN 911833139 · Headquarters: Bellingham, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Master Gardener Foundation of Yakima County
EIN 550825932 · Headquarters: Yakima, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Master Gardeners Foundation Od Mason County
EIN 475551510 · Headquarters: SHELTON, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Master Gardeners of Lewis County
EIN 912007564 · Headquarters: Chehalis, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maxs Magic Garden
EIN 392296416 · Headquarters: Sammamish, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Maxwelton Creek Alliance
EIN 384100253 · Headquarters: Clinton, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mead SPL Site Custodial Trust
EIN 756731995 · Headquarters: Olympia, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Meerkerk Rhododendron Gardens
EIN 731648558 · Headquarters: GREENBANK, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Mercer Legacy
EIN 931900107 · Headquarters: Mercer Island, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Metaline Falls Community Garden
EIN 334908500 · Headquarters: Metaline Falls, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Metamimicry
EIN 871588219 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Methow Dark Sky Coalition
EIN 842776342 · Headquarters: Winthrop, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Methow Field Institute
EIN 911626127 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Methow Recycles
EIN 010741195 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Methow Salmon Recovery Foundation
EIN 912141473 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Methow Valley Sports Trail Association
EIN 911027957 · Headquarters: Winthrop, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Methow Valley Trails Collaborative
EIN 921776188 · Headquarters: Winthrop, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Methow Watershed Foundation
EIN 611737222 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Mexico Nature Conservation Action
EIN 833442281 · Headquarters: olympia, WA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N