Who We Are

The Move All Seattle Sustainably (MASS) Coalition is a coalition of organizations and advocates working to connect Seattle’s diverse and vibrant neighborhoods, minimize reliance on private vehicles, achieve Vision Zero, make Seattle carbon-neutral, create walkable communities, and ensure equitable access to transportation for all people.  MASS was founded in 2018 

2026 Current MASS Coalition member organizations

• Transit Riders Union

• Seattle Streets Alliance

• Cascade Bicycle Club

• Seattle Subway,

• Transit Equity for All

• Transportation Choices Coalition

• The Urbanist

• Nondrivers Alliance

• 350 Seattle 

• Fix the L8

• Sierra Club Washington,  Seattle Transit Blog

• Save Ballard Light Rail

• America Walks 

Email us: MassCoalitionSeattle [at] gmail [dot] com