| King County Iris SocietySeattle | Form 990-N | No figure |
| Columbia River Bioregional Education ProjectOroville | Form 990-N | No figure |
| Save Lake SammamishIssaquah | Form 990-N | No figure |
| South Sound Bird AllianceOlympia | Form 990-N | No figure |
| Friends of Miller Peninsula State ParkSequim | Form 990-N | No figure |
| Lakeridge Garden ClubSeattle | Form 990-N | No figure |
| Ocean Shores Fresh Waterways IncOcean Shores | Form 990-N | No figure |
| Friends of Skagit CountyMount Vernon | Form 990-N | No figure |
| Friends of Cottage LakeWoodinville | Form 990-N | No figure |
| Friends of Northwest HatcheriesLeavenworth | Form 990-N | No figure |
| Thornton Creek AllianceSeattle | Form 990-N | No figure |
| Lake Wilderness Preservation AssociationMaple Valley | Form 990-N | No figure |
| Wenatchee Valley Fly FishersWenatchee | Form 990-N | No figure |
| Alpine Lakes FoundationSeattle | Form 990-N | No figure |
| Waste Action ProjectSeattle | Form 990-N | No figure |
| Jefferson County Master Gardener FoundationPort Hadlock | Form 990-N | No figure |
| Ice Age Floods InstituteRichland | Form 990-N | No figure |
| Wildlife Conservation TrustBellingham | Form 990-N | No figure |
| Mukilteo Way Garden ClubMukilteo | Form 990-N | No figure |
| Friends of Mt Spokane State ParkSpokane | Form 990-N | No figure |
| Friends of the East ForkRidgefield | Form 990-N | No figure |
| Shelton Rock and Mineral SocietyShelton | Form 990-N | No figure |
| Advisory CouncilVancouver | Form 990-N | No figure |
| Monroe Rod & Gun Club IncMonroe | Form 990-N | No figure |
| Loon Lake Property Owners AssociationLoon Lake | Form 990-N | No figure |
| Lake Forest Park Stewardship FoundationKenmore | Form 990-N | No figure |
| Master Gardener Foundation of Cowlitz CountyKelso | Form 990-N | No figure |
| Seymour Botanical Conservatory FoundationTacoma | Form 990-N | No figure |
| Washington Butterfly AssociationSeattle | Form 990-N | No figure |
| Washington State Trails CoalitionKingston | Form 990-N | No figure |
| Friends of Lake TappsLake Tapps | Form 990-N | No figure |
| Association of Environmental Health Academic ProgramsIssaquah | Form 990-N | No figure |
| Master Gardeners of Lewis CountyChehalis | Form 990-N | No figure |
| Bighorn FoundationSpokane Valley | Form 990-N | No figure |
| Railroads & Clearcuts CampaignVashon | Form 990-N | No figure |
| Soap Lake ConservancySoap Lake | Form 990-N | No figure |
| Coal Creek Community CoalitionSeattle | Form 990-N | No figure |
| Ecoteach FoundationPoulsbo | Form 990-N | No figure |
| Crystal Conservation CoalitionSeattle | Form 990-N | No figure |
| Wild Steelhead CoalitionSeattle | Form 990-N | No figure |
| Whidbey Island Land & Shore TrustLangley | Form 990-N | No figure |
| Pacific Northwest Society of Environmental Toxicology & ChemistBremerton | Form 990-N | No figure |
| Blue Mountain Resourceconservation and Development CouncilWaitsburg | Form 990-N | No figure |
| Boreal Songbird InitiativeSeattle | Form 990-N | No figure |
| Magnuson Community GardenSeattle | Form 990-N | No figure |
| Hilltop-Locust GroupLynnwood | Form 990-N | No figure |
| Washington Waterfowl AssociationBellevue | Form 990-N | No figure |
| Elma Game ClubElma | Form 990-N | No figure |
| North Cascades Conservation CouncilSeattle | Form 990-N | No figure |
| TEMPLSpokane | Form 990-N | No figure |