Biographies of our independent non-executives and audit non-executives

Mazars has appointed independent non-executives (INEs) and audit non-executives (ANEs).
Denise Fletcher - Our Independent Non Executives

Denise Fletcher, Independent Member of the Public Interest Committee (PIC)

Date first appointed to PIC - 2013

Denise Fletcher is a member of the Group Governance Council of Mazars Group. She is the Chair of the Remuneration Committee and a member of its quality and risk committee and audit committees. She served as Chief Financial Officer of MasterCard, Bowne, DaVita and Vulcan.

She Chairs the Public Interest Committee of Mazars in the UK and the Public Interest Committee of Mazars in Ireland. She is also a member of the Quality Advisory Board for Mazars France. She has served on the Board of Directors of Inovalon, Orbitz, Unisys, Sempra Energy, EHL Ltd (Golder), Software Etc., Stores and the Hospital Group. She has Chaired the audit committees of Mazars Group, Unisys, Orbitz, Inovalon and EHL (Golder). She Chaired the Nominating and Governance Committee of Unisys and served on the Security and Risk Committee of Unisys. She also served on the Security and Compensation Committees of Inovalon. She was recognised by the National Association of Corporate Directors for exemplary board leadership. Denise is a member of the US Council on Foreign Relations, the Economic Club of New York, the Harvard Club of New York and the Academy of Women Achievers. 

Guy Jubb - Our Independent Non Executives

Guy Jubb, Independent Member of the Public Interest Committee (PIC) and the Audit Board

Date first appointed to PIC - 2017

Date first appointed to Audit Board - 2023

Professor Guy Jubb is a Chartered Accountant and an Honorary Professor at the University of Edinburgh. He was formerly Global Head of Governance and Stewardship at Standard Life Investments, a role he fulfilled for over 20 years. He played a leading role in developing and implementing good practices in corporate governance and stewardship and was the recipient of an Outstanding Achievement Award from the ICSA, the Governance Institute.

Guy is a Director of the ECGI, the European Corporate Governance Institute. Also, he is a Co-Director of the Conference Board’s European Corporate Governance Council, which he Co-Chaired for many years.

In recent years he has been a member of the Global Advisory Panel of Standard Life Aberdeen plc, a member of the Standing Advisory Group of the PCAOB, the US audit regulator, and a member of the Policy Leadership Board of ICAS, the Institute of Chartered Accountants of Scotland, whose Research Panel he chaired. 

Sir Amyas Morse - Our Independent Non Executives

Lord Amyas Morse, Independent Member of the Public Interest Committee (PIC) and the Audit Board

Date first appointed to PIC - 2019.

Date first appointed to Audit Board - 2023

Lord Amyas Morse spent a large part of his career as a partner at PwC and predecessor firms. First in Scotland, becoming a regional managing partner, then in London becoming a UK Executive partner, and then in global roles, as a global audit leader and then as global managing partner, Operations. He subsequently spent three years as a Defence Commercial Director at the Ministry of Defence before becoming Controller and Auditor General and CEO of the National Audit Office (NAO). He fulfilled this role for the 10-year term set down by parliament and published approximately 60 reports each year focusing on value for money.

The NAO also carried out the audit of all central Government. During that time, he also served on the board of audit of the United Nations, including a spell of three years as Chair. More recently he acted as Independent reviewer of the Loan Charge, his report was published by the Chancellor of the Exchequer in December 2019, and all but one of the far-reaching recommendations were accepted. Amyas had recently become chair of two NHS foundation trusts and became a member of the House of Lords in May 2021. He is Chair of the Audit Board and a member of the Public Interest Committee of Mazars in the UK.

Devyani Vaishampayan

Devyani Vaishampayan, Independent Member of the Audit Board

Date first appointed to Audit Board - 2023

Devyani Vaishampayan is currently Remco Chair & NED at Saietta Group Plc, Remco Chair & NED at Norman Broadbent PLC, and on the REMCO Committee at The England & Wales Law Society.

During her career, Devyani has been an international and multi-sector FTSE 30 CHRO and board member effectively leading large, diverse, and multi-billion complex organisations through transformational change. She has had global roles in successful organisations across various industries such as Citibank, AT&T, British Gas, Rolls Royce, and BSI. Having lived and worked in China, Singapore, and Europe (and managed teams in the Americas & Middle East) she is very international in her outlook.

In addition, Devyani has been a successful entrepreneur using Digital/AI solutions around leadership, culture, and talent management.

Devyani has received several international accolades:

2021 – Top 100 Digital Influencer Around the Future of Work.

2020 – Finalist-Asian Women of Achievement, Technology & Digital.

2017 -  Financial Times Ethnic Leaders List.

2015 – 100 Women to Watch, Cranfield business School Member of Audit Board. 

Oliver Tant

Oliver Tant, Independent Member of the Audit Board

Date first appointed to Audit Board – 2024

Oliver joined the Mazars as an Independent Non-Executive Director and Chair Designate of the Audit Board in February 2024,  with a view to taking on the Chair role later in the year.

Oliver Tant is an experienced auditor, business leader and former Vice Chair and Head of Audit at a large audit firm. He is also an experienced CFO, non-executive director and chair.

Oliver was appointed Redrow Board as an independent non-executive director on 1 February 2022 and became the Chair of the Audit Committee on 11 November 2022. He is also currently a non-executive director and Chair of the audit and risk committee of B&M European Value Retail S.A. and he previously served as Audit Chair of the Royal Hospital for Neuro-Disability and Milfield School.

He served as Chief Financial Officer of Imperial Brands PLC until 2021 where he was responsible for amongst other things finance, treasury, investor relations, procurement and information technology. He served as interim CFO of Modulaire between Feb 22 and May 23. Prior to these roles, Oliver held a number of senior positions in a 32-year career at KPMG, including Vice Chairman, Global Managing Director (Financial Advisory and Private Equity Divisions) and Head of UK Audit. Oliver was also a Non-Executive Director of both the UK and German Boards of KPMG. 

He is a Chartered Accountant with the Institute of Chartered Accountants of Scotland and has a Joint 1st Class Honours degree in Economics and Business Economics.

The full details of the role and terms of reference of the Public Interest Committee are to be found here and those for the Audit Board are to be found here.