EY US has named John L. King as EY Americas vice chair, assurance. King succeeds Frank Mahoney, who has become EY Americas vice chair, West Region.

King will lead approximately 20,000 people across 31 member firms throughout the Americas in audit, financial accounting and advisory services, forensic & integrity services, and climate change and sustainability services. EY US currently has the leading audit share among US Fortune 500, Fortune 1000 and Russell 3000 companies, as well as among US IPOs.  

King will be responsible for initiatives including digital audit transformation, supported by a $600 million investment in new technologies; the recruitment, retention and training of assurance professionals with increasingly varied skill sets across STEM disciplines; and working with the Independent Audit Quality Committee, an external group of industry leaders who advise the US firm on issues pertaining to audit quality.

Prior to his appointment, King served as the southwest assurance managing partner, a region that consists of 1,400 professionals across 14 offices representing nine states.