Ron Sims is a civic volunteer active in health, education, environmental and social equity issues. Appointed by Governor Jay Inslee, Sims serves as the chair of the Washington Health Benefit Exchange Board. The board is responsible for the implementation of the Affordable Care Act in Washington State.

Sims served as the Deputy Secretary for the U.S. Department of Housing and Urban Development from 2009 to 2011. He was appointed by President Obama and unanimously confirmed by the U.S. Senate. As the second most senior official at HUD, Sims managed the day-to-day operations of an agency with 8,500 employees and an operating budget of nearly $40 billion.

Prior to his appointment at HUD, Sims served for 12 years as the elected Executive of Martin Luther King, Jr. County in Washington State, the 13th largest county in the nation with 1.8 million residents and 39 cities including the cities of Seattle, Bellevue and Redmond.