Transportation Advocacy
- AAA - The Road Ahead
- AASHTO I Told the President
- Advanced Transit Association
- Amalgamated Transit Union
- America Walks
- American Highway Users Alliance
- Are We There Yet? AASHTO
- Association for California High Speed Trains
- Association for Commuter Transportation
- Automobile Club of Southern California
- Bike Plan
- Bikes Belong Coalition
- California High Speed Rail Authority
- Californians for High Speed Rail
- Car Free Places - Wikipedia
- Cascadia Prospectus
- Center for Infrastructure Equity
- Center for Land Use Interpretation
- Center for Transit Oriented Development
- Center for Transportation Excellence
- Coalition for Smarter Growth
- COAST Santa Barbara
- Community Transportation Association
- Complete Streets
- Fix Expo
- Fixing Angelenos Stuck in Traffic
- Free Public Transit
- Friends for Expo Transit
- Friends of Southern California Highways
- Friends of the Green Line
- Golden State Rail
- High Desert Corridor Joint Powers Authority
- Intelligent Transportation Society of America
- International Bride, Tunnel, and Turnpike Association
- L.A. Regional Integration of Intelligent Transportation Systems (RIITS)
- League of American Bicyclists
- Light Rail for Cheviot
- Los Angeles County Bicycle Coalition
- Los Angeles Economic Development Corp.
- Metro Exposition Line Construction Authority
- Metro Gold Line Foothill Extension Construction Authority
- National Alliance of Public Transportation Advocates
- National Center for Bike/Walk
- National Coalition of Walking Advocates
- National Transportation Operations Coalition
- New Urbanism
- North America Tranportation Institute
- Orange Line Development Authority (Maglev)
- Pedestrian and Bicycle Information Center
- Project for Public Spaces
- Public Transit US
- Public Transportation
- Rail Passenger Association of California
- Rails to Trails Conservancy
- Railvolution
- Reason Foundation
- Ride Your Bike
- Riding the Bus/Rail in LA
- San Fernando Valley Transit Insider
- Smart Growth America
- Southern California Association of Governments (SCAG)
- Southern California Transit Advocates (SOCATA)
- Subway to the Sea
- Surface Transportation Policy Project
- The Bus Bench
- The Bus Riders Union
- The Road Information Program (TRIP)
- Train Riders Assocation of California
- Transit Coalition
- Transit Talent
- Transportation and Land Use Coalition
- Transportation and Land Use Collaborative of Southern California
- Transportation California
- Transportation for America
- United Transportation Union
- Urban Futures
- Urban Land Institute (ULI)
- Walkable Communities
- WestStart/CalStart
- WorldCarFree Network