Piers Clinton-Tarestad

Piers is a Partner in EY UK&I’s Technology Risk services at Ernst & Young LLP, with over 20 years’ experience in the field.

He started his career as a chartered accountant before shifting his focus to technology systems and associated processes. In doing so, he has led complex projects covering data analytics, cybersecurity, risk and internal audit, project management and technology risk. He has been instrumental in helping deliver thought leadership and engagement on emerging technology topics, such as artificial intelligence (AI) assurance. Currently, he is leading the EY approach to quantum technologies in the UK and Ireland.

Piers has a BSc and an MBA degree. A Fellow Chartered Accountant (FCA), he has completed a significant range of technology qualifications, including Certified Information Systems Auditor (CISA), Certified Information Security Manager (CISM) and Certified Information Systems Security Professional (CISSP). He has also served on several audit committees.

How Piers is building a better working world

"I have always been passionate about demystifying and managing the risks of ubiquitous technologies. This passion has included helping manage large-scale system changes and ensuring the protection of critical infrastructure against cyberattacks, as well as helping enable data privacy and trusted AI.

I am a firm believer that diversity of thought and experience is essential to effectively manage emerging technology risks. This is especially true as these risks intersect with new areas, such as environmental, social and governance (ESG) priorities. To promote a diverse talent pipeline, I act as an active coach for individuals within the organization — both through formal and informal programs."