1. WSP–Parsons Brinckerhoff, 999 3rd Avenue, Suite 3200, Seattle, WA 98104.
2. Complex Bridge Group, 1600 Broadway, Suite 1100, Denver, CO 80202.
3. WSP–Parsons Brinckerhoff, 1600 Broadway, Suite 1100, Denver, CO 80202.
4. Rail & Transit Practice Group, Jacobs Engineering, Inc., 600 108th Avenue, NE, Suite 700, Bellevue, WA 98004.
5. Transportation Technology Center, Inc., 55500 DOT Road, Pueblo, CO 81001.
6. Sound Transit–Union Station, 401 South Jackson Street, Seattle, WA 98104.