Trustee Mah has served on the South Puget Sound Board since 2016. He was appointed to serve a one-year term on the ACCT Board of Directors in November of 2024. 

Mah is the owner Doug Mah & Associates, a consulting firm, and has recently taken up leadership positions in the Washington State Association of College Trustees and currently serves as President-Elect of the Association. He also serves on the board of the Washington State Employees Credit Union and is active in the Gateway Rotary Club of Thurston County. Mah served as Olympia Mayor from January 2008 through December 2011.