- BMW CCA - Puget Sound Region
 - Harold E. LeMay Museum, The
- Tacoma - Created to house one the largest private car collection in the world.
- Jaguar Drivers and Restorers Club of Northwest America
- Seattle - For owners of Jaguar and Daimler cars. Includes information on tours, rallies, and events.
- MG Car Club Northwest Centre
- Tacoma - Meetings, events, and matters of interest for those who love the Marque.
- Mustangs Northwest
- Bellevue - Features a car gallery, current events, and club information.
- My Jeep Adventures
- Seattle - The ongoing story of an old flatfender.
- Nash Car Club of America: Pacific Northwest Region
- Everett
- Northwest Steam Society Club
- Seattle - Nonprofit volunteer organisation for steam enthusiasts in the Pacific Northwest and beyond. Open to anyone interested in steam boats, trains, traction engines, automobiles, models, and more.
- Poverty Bay Wings
- Seattle - Gold Wing Touring Association.
- Pugent Sound Chapter of POCI
- Kent - Committed to the appreciation and enjoyment of all series of Pontiacs and Oaklands in the Pacific Northwest.
- Puget Sound Clean Cities Coalition
- Works to advance the Puget Sound region's environmental and public health, energy security, and economic development by promoting policies and practices that reduce petroleum consumption in transportation.
- Rotary Rockets of Washington
- Redmond - For RX7 and general rotary engine vehicle enthusiasts.
- SeattleEVA
- Seattle - To help and aid in the education of the general public as to the desirability and availability of electric transportation in all its forms.
- SeattleX1/9
- Seattle - For Fiat and Bertone X1/9 enthusiasts in the Pacific Northwest USA, as well as fans the world over.
- Washington State Moto Guzzi Owners Club
- Snohomish
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