Dow Constantine

Chief Executive Officer at Sound Transit

Dow Constantine became Sound Transit's CEO in April 2025 after serving as King County Executive since 2009 and as a Sound Transit Board member since 2006. He is recognized for overseeing large organizations, delivering major capital projects, and fostering regional partnerships crucial for transit expansion. Constantine played a key role in the voter-approved Sound Transit 3 light rail expansion and has led strategic updates to the agency’s long-range plans. He holds a law degree from the University of Washington and is known for his commitment to sustainable, equitable transit solutions.