PwC US has selected Timothy Ryan as its chairman.

He succeeds Bob Moritz who was recently appointed to global chairman of PwC.

Ryan has more than 25 years’ experience and has previously worked as vice chairman and US markets, strategy and stakeholders leader. He also led the PwC US assurance practice.

He also worked on PwC’s "closing the expectation gap committee," in which his contributions helped to design and implement improvements that addressed gaps between the expectations of constituents and accounting standards, according to PwC US.

Ryan begins his four year term 1 July 2016.