- Bike Alliance of Washington
- Bike Works
- Cascade Bicycle Club
- Cascade Land Conservancy
- Dr. Dan's Alternative Fuelworks
- East Lake Washington Audubon Society
- Feet First
- Futurewise
- Issaquah Alps Trail Club
- King County Metro
- Microsoft
- Puget Sound Clean Air
- Puget Sound Energy
- Puget Soundkeeper Alliance
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- Redmond Farmer's Market
- Redmond Police Bicycle Safety
- REI
- R-TRIP
- Save Lake Sammamish
- Seattle Conscious Choice
- Sightline Institute
- Sound PRT
- Sound Transit
- Sustainable Ballard
- Sustainable Style Foundation
- Transportation Choices Coalition
- Washington Toxics Coalition
- Washington Trails Association
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