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
- Olympia Peninsula Bay Watchers
EIN 911537722 · Headquarters: Port Hadlock, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Olympic Coast Alliance
EIN 731680682 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Olympic Environmental Council
EIN 943154532 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Fly Fishers of Edmonds Foundation
EIN 471172087 · Headquarters: EDMONDS, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic Forest Coalition
EIN 223865041 · Headquarters: Quilcene, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Olympic Mountain Earthwisdom Circle
EIN 460692757 · Headquarters: Port Angeles, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic Nature Experience
EIN 471002603 · Headquarters: Carlsborg, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Olympic Wilderness Foundation
EIN 861213672 · Headquarters: Carlsborg, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Olympic-Kitsap Peninsula Equestrian Teams Booster Club
EIN 475260262 · Headquarters: Poulsbo, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- On Sacred Ground
EIN 460922971 · Headquarters: Friday Harbor, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- One Nation Movement
EIN 853128916 · Headquarters: Vancouver, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- One Nation United
EIN 911360545 · Headquarters: Tacoma, WA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- One Square Inch of Silence Foundation
EIN 271038713 · Headquarters: Joyce, WA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Onebothell
EIN 473307508 · Headquarters: Bothell, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Ophelia Garden Club
EIN 911285489 · Headquarters: University Place, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Optimistic Orchard
EIN 862806716 · Headquarters: Bainbridge Island, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Orcas Bay Foundation
EIN 911934775 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Orcas Cooperative Foodraising Network
EIN 331826136 · Headquarters: OLGA, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Orcas Island Garden Club
EIN 205361704 · Headquarters: EASTSOUND, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Orchard Gardens at Holycross
EIN 934610756 · Headquarters: bellevue, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Order of Guardians Corporation
EIN 993072766 · Headquarters: Vancouver, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Oregonians in Action Fund
EIN 912096564 · Headquarters: TUKWILA, WA, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-PF
- Organic Sunflower Foundation
EIN 943229055 · Headquarters: FOX ISLAND, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Organization for the Advancement of Underprivileged Societies
EIN 453963547 · Headquarters: Tukwila, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Our Environment
EIN 473606657 · Headquarters: Ellensburg, WA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Our Hope
EIN 475159699 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pacific Bamboo Resources
EIN 271504824 · Headquarters: seattle, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Pacific Biodiversity Institute
EIN 311602392 · Headquarters: Twisp, WA, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990
- Pacific Coast Salmon Coalition
EIN 911519025 · Headquarters: FORKS, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Pacific Energy Institute
EIN 911190090 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pacific Materials Exchange
EIN 911446676 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Pacific Northwest Horticultural Conservancy
EIN 205701774 · Headquarters: Poulsbo, WA, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Pacific Northwest International Section Air Pollution Control Asso
EIN 936042083 · Headquarters: Bellevue, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Pacific Northwest Pollution Control Association
EIN 910954840 · Headquarters: GIG HARBOR, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pacific Northwest Pollution Prevention Resource Center
EIN 911493057 · Headquarters: EVERETT, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Pacific Northwest Salmon Center
EIN 412069189 · Headquarters: Belfair, WA, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990
- Pacific Northwest Society of Environmental Toxicology & Chemist
EIN 912147511 · Headquarters: Bremerton, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pacific Rim Institute for Environmental Stewardship
EIN 270619116 · Headquarters: COUPEVILLE, WA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Pacific Sound Resources Environmental Trust
EIN 916378554 · Headquarters: Olympia, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Pacifica Choirs
EIN 912160534 · Headquarters: Mountlake Terrace, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Palmer Lake Area Residents Association Inc
EIN 911644453 · Headquarters: LOOMIS, WA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Palouse Prairie Foundation Inc
EIN 680516444 · Headquarters: PULLMAN, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Partners for Energy Progess
EIN 843818906 · Headquarters: OLYMPIA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Partnerships for Nature
EIN 844595964 · Headquarters: Bainbridge Island, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Pcc Farmland Trust
EIN 912021165 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Peace and Justice Fund
EIN 911212235 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- People and Otters
EIN 830634532 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- People for an Environmentally Responsible Kenmore
EIN 680529863 · Headquarters: Kenmore, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- People for Environmental Action & Children's Health
EIN 912091459 · Headquarters: SPOKANE, WA, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ
- People for Lake Whatcom
EIN 431964273 · Headquarters: BELLINGHAM, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- People for Puget Sound
EIN 911518715 · Headquarters: EDMONDS, WA, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990
- People for the Preservation of Tualco Valley
EIN 911611156 · Headquarters: Monroe, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N
- Periwinkle Press
EIN 900186128 · Headquarters: Oak Harbor, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Permaculture Lifestyle Institute
EIN 474721649 · Headquarters: Tacoma, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Philanthrokids
EIN 264271386 · Headquarters: Carnation, WA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Phoenix Conservancy
EIN 813858018 · Headquarters: Pullman, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Photography for the Preservation of Landscapes Inc
EIN 593784107 · Headquarters: Washougal, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Picture Perfect Queen Anne
EIN 270519659 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pilchuck Audubon Society
EIN 916183664 · Headquarters: Snohomish, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pillings Pond Preservation Society
EIN 861108381 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N
- Pinchot Partners
EIN 203689613 · Headquarters: MORTON, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Pints for Parks
EIN 473176115 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Pipeline Safety Trust
EIN 562369975 · Headquarters: BELLINGHAM, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Pivot Point a Nonprofit Corporation
EIN 462378514 · Headquarters: SHELTON, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Planet Youth Project
EIN 861299169 · Headquarters: Sammamish, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Plug in Olympia
EIN 870805087 · Headquarters: OLYMPIA, WA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Pnw Climate Week a Nonprofit Corporation
EIN 994809672 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pnw Pack Out
EIN 394190791 · Headquarters: Suquamish, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pnw Protectors
EIN 832461321 · Headquarters: Friday Harbor, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pocket Prairies
EIN 992656025 · Headquarters: Tumwater, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Pomeroy Community Garden
EIN 994054272 · Headquarters: Pomeroy, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Port Angeles Garden Club
EIN 910605172 · Headquarters: Port Angeles, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Portland Waterfront Pavilion Inc
EIN 832111235 · Headquarters: White Salmon, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Poulsbo Garden Club Inc
EIN 270081009 · Headquarters: Poulsbo, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Powellswood Garden Foundation
EIN 800951486 · Headquarters: FEDERAL WAY, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Preserve Reasonable Shoreline Management
EIN 471869162 · Headquarters: Bainbridge Island, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Preserving Washougal & West End Rural Character
EIN 933293548 · Headquarters: Washougal, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Price Sculpture Forest
EIN 850495987 · Headquarters: FREELAND, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Princess Louisa International Foundation
EIN 911952371 · Headquarters: Bellevue, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990
- Prkc Org
EIN 261777378 · Headquarters: Fall City, WA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Professional Training Association
EIN 815356974 · Headquarters: Shelton, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Project Ecomotion
EIN 413252210 · Headquarters: Bellevue, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Propagationnation
EIN 833715370 · Headquarters: UNIVERSITY PLACE, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Protect and Restore Cedar River Canyon Project
EIN 845115838 · Headquarters: Renton, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Protect Henderson Inlet
EIN 922863494 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Protect Zangle Cove
EIN 473312912 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Puget Creek Restoration Society
EIN 912088834 · Headquarters: Puyallup, WA, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Puget Sound Branch of the American Begonia Society
EIN 392798281 · Headquarters: Renton, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Puget Sound Garden Fling
EIN 932624790 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Puget Sound Gesneriad Society
EIN 911232362 · Headquarters: University Place, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Puget Sound Koi Club
EIN 371905985 · Headquarters: Tacoma, WA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N
- Puget Sound Restoration Fund
EIN 911773965 · Headquarters: BAINBRIDGE ISLAND, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Puget Soundkeeper Alliance
EIN 911285783 · Headquarters: SEATTLE, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Punta Tortuga Environmental Alliance
EIN 334042520 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Pure Blue
EIN 474032487 · Headquarters: Seattle, WA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990
- Puyallup River Watershed Council
EIN 912047734 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Puyallup Watershed Conservation Land Trust
EIN 334904181 · Headquarters: Tacoma, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Puyallup Watershed Initiative
EIN 821723455 · Headquarters: TACOMA, WA, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990
- Pyramid Mountain
EIN 993134865 · Headquarters: Spokane, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Queens of Spades Garden Club
EIN 911231923 · Headquarters: Ellensburg, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N