Organizations
Largest first
By revenue on the last return. Organizations that file Form 990-N report no figures and come last.
| Organization | Return | Revenue |
|---|---|---|
| Nia Tero FoundationSeattle | Form 990 | $32,904,805FY2024 |
| Columbia Land TrustVancouver | Form 990 | $13,793,237FY2024 |
| Forterra NWSeattle | Form 990 | $12,806,098FY2024 |
| Breakthrough Energy Catalyst FoundationKirkland | Form 990 | $12,378,697FY2024 |
| Great Peninsula ConservancyBremerton | Form 990 | $10,980,530FY2024 |
| Grist Magazine IncSeattle | Form 990 | $10,366,804FY2025 |
| Whidbey-Camano Land TrustGreenbank | Form 990 | $8,631,910FY2025 |
| The MountaineersSeattle | Form 990 | $7,907,895FY2025 |
| Arboretum FoundationSeattle | Form 990 | $7,864,410FY2025 |
| Methow Salmon Recovery FoundationTwisp | Form 990 | $6,857,062FY2025 |
| The Mountains to Sound Greenway TRSeattle | Form 990 | $6,397,747FY2025 |
| Splash InternationalSeattle | Form 990 | $5,772,077FY2025 |
| Bainbridge Island Land TrustBainbridge Island | Form 990 | $5,760,537FY2025 |
| Marine Stewardship Council LimitedTukwila | Form 990 | $5,702,380FY2025 |
| Ecostudies InstituteOlympia | Form 990 | $5,285,982FY2024 |
| Washington Conservation Action Education FundSeattle | Form 990 | $5,057,979FY2024 |
| Delridge Neighborhoods Development AssociationSeattle | Form 990 | $4,960,034FY2024 |
| Washington Maritime BlueSeattle | Form 990 | $4,776,219FY2025 |
| Tilth AllianceSeattle | Form 990 | $4,749,808FY2024 |
| Chelan-Douglas Land TrustWenatchee | Form 990 | $4,738,132FY2026 |
| Capitol Land TrustTumwater | Form 990 | $4,687,405FY2025 |
| Composite Recycling Technology CenterPort Angeles | Form 990 | $4,469,810FY2025 |
| Sightline InstituteSeattle | Form 990 | $4,469,635FY2025 |
| Conservation NWSeattle | Form 990 | $4,156,211FY2025 |
| Mt Adams Resource StewardsGlenwood | Form 990 | $4,092,009FY2025 |
| San Juan Preservation TrustFriday Harbor | Form 990 | $3,901,778FY2024 |
| Inland Northwest Land TrustSpokane | Form 990 | $3,776,552FY2024 |
| Mid-Columbia Fisheries Enhancement GroupWhite Salmon | Form 990 | $3,683,911FY2025 |
| Utility Information AllianceSeattle | Form 990 | $3,662,832FY2025 |
| Nisqually Land TrustLacey | Form 990 | $3,613,066FY2025 |
| Toxic-Free FutureSeattle | Form 990 | $3,585,057FY2024 |
| Evergreen Mountain Bike AllianceNorth Bend | Form 990 | $3,194,812FY2024 |
| Back Country Horsemen of WashingtonEllensburg | Form 990 | $3,193,726FY2024 |
| Sustainable ConnectionsBellingham | Form 990 | $3,115,288FY2024 |
| Jefferson Land TRPort Townsend | Form 990 | $3,049,525FY2024 |
| Rhododendron Species FoundationFederal Way | Form 990 | $3,037,683FY2024 |
| Skagit Land TrustMount Vernon | Form 990 | $3,010,748FY2025 |
| Washington Farmland TrustSeattle | Form 990 | $2,996,492FY2024 |
| The Sustainable Living CenterWalla Walla | Form 990 | $2,981,040FY2025 |
| Feel Good ActionSeattle | Form 990 | $2,977,150FY2024 |
| Building TransparencySeattle | Form 990 | $2,955,887FY2024 |
| 350 SeattleSeattle | Form 990 | $2,892,979FY2024 |
| Birds Connect SeattleSeattle | Form 990 | $2,852,005FY2025 |
| UnkitawaKent | Form 990 | $2,804,748FY2024 |
| Initiative for Responsible Mining AssuranceSeattle | Form 990 | $2,740,746FY2024 |
| Duwamish River Cleanupcoalition-Technical Advisory GroupSeattle | Form 990 | $2,696,507FY2024 |
| Washington Water TrustSeattle | Form 990 | $2,592,663FY2024 |
| Puget Sound Restoration FundBainbridge Island | Form 990 | $2,590,633FY2024 |
| Front and CenteredSeattle | Form 990 | $2,584,627FY2023 |
| Carbon Leadership ForumBellevue | Form 990 | $2,497,382FY2024 |
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