Who we are

ICAS is a professional body for more than 20,000 world class business men and women who work in the UK and in more than 100 countries around the world. Our members have all achieved the internationally recognised and respected CA qualification (Chartered Accountant). We are an educator, examiner, regulator, and thought leader.

Almost two thirds of our working membership work in business; many leading some of the UK's and the world's great companies. The others work in accountancy practices ranging from the Big Four in the City to the small practitioner in rural areas of the country.

We currently have around 3,000 students striving to become the next generation of CAs under the tutelage of our expert staff and members. We regulate our members and their firms. We represent our members on a wide range of issues in accountancy, finance and business and seek to influence policy in the UK and globally, always acting in the public interest.

ICAS was created by Royal Charter in 1854.

Office Bearers

Sir Brian Souter CA, President

Brian Souter

Sir Brian Souter is one of the UK's best known entrepreneurs. He is the chairman and co-founder of Stagecoach Group, one of the world's leading transport companies. It was founded by Sir Brian and his sister Ann Gloag OBE with two buses in 1980 and now employs 39,000 people at bus and rail businesses across Europe and North America. He was the Group's Chief Executive until May 2013.Sir Brian qualified as a Chartered Accountant in 1984 after training with Arthur Andersen in Glasgow.

Sandy Manson CA, Deputy President

Sandy Manson CA Sandy Manson is CEO of Johnston Carmichael, Scotland's largest independent firm of Chartered Accountants employing more than 600 people across 11 offices.

Sandy trained with Arthur Andersen in Edinburgh and qualified in 1985. He then worked with Arthur Andersen in London and Zurich in their audit and assurance division.

In 1991 on his return to Aberdeenshire, Sandy joined Johnston Carmichael and became a Partner in 1993 and CEO in 2007.

Mike McKeon CA, Vice President

Mike McKeon CA Mike is a non-executive director and Chair of the Audit Committee at National Express Group plc. He is also Senior Independent Director and Chair of Audit Committee of The Merchants Trust Plc.

He retired as an executive director and CFO of FTSE 100 Severn Trent plc in March 2015 having served almost 10 years in the role and a total of 15 years as a public company CFO. During his time with Severn Trent, Mike was engaged in the wider debate on future regulatory change in the water sector and how the industry is funded.

Mike is Chair of the ICAS Brexit Advisory Group and the ICAS Policy Leadership Board. He was also Vice Chair of the ICAS Working Party on “The Future of Assurance”.

Mike has extensive international business experience, having worked overseas for over 14 years for CarnaudMetalbox, Elf Atochem and Price Waterhouse. He returned to the UK in 1997 working for Rolls Royce plc from 1997 to 2000 in various senior roles including Finance Director of the Aerospace Group.

Executive Team

Anton Colella, Chief Executive

Anton ColellaAnton Colella became Chief Executive of ICAS in October 2006.

Previously he was the Chief Executive of the Scottish Qualifications Authority (SQA), from December 2003 to October 2006, following a period as Director of Qualifications.

He was elected Chair of the Global Accounting Alliance (GAA) in November 2011. The GAA has around one million members in 165 countries, and represents a collection of leading institutes from around the world. Anton became an Honorary Professor of Education at the University of Glasgow in 2012 and has been a member of the University’s Adam Smith Business School Advisory Board since 2011.  He received an honorary Doctorate from BPP University in 2014.

Anton is a Trustee of Columba 1400, an award winning social enterprise and charity to help young people realise their potential, a Trustee of the Scottish International Education Trust (SIET) which offers financial assistance to individuals for further education and training and is Chairman of the Executive Board of the Scottish Catholic Education Service.

A graduate of the University of Stirling, Anton’s career began as a teacher of Religious Education. Before joining the SQA he was Depute Head Teacher at St Margaret Mary’s Secondary School in Glasgow.

Anton lives in Glasgow and his main interests are his family, rugby, eating out and spending time in the Highlands of Scotland.

Vivienne Muir, ICAS Secretary

Vivienne rejoined ICAS in July 2017 as the ICAS Secretary responsible for the effective leadership of the corporate governance function. Vivienne previously held the positions in ICAS as Executive Director of Professional Standards and Executive Director of Innovation. Prior to ICAS, Vivienne has worked as a solicitor in industry including the Scottish Qualifications Authority. In addition, Vivienne has worked as a litigation solicitor in Edinburgh and Australia.

Vivienne lives in North Berwick, Scotland with her husband Steve and her 2 children, Amelia and Max.

Mark Allison, Executive Director, Education

Mark AllisonProfessor Mark Allison is a Chartered Accountant (CA), who has been the Institute's Executive Director, Education for more than 15 years.  In this role he is responsible for the CA qualification system, much of the exam activity, commercial and policy-related matters as well as a number of international benchmarking and reciprocity activities.  

Prior to joining ICAS, Mark qualified as a CA, originally with KPMG.  Mark is a visiting Professor at Robert Gordon University, a role he has carried out for 10 years.  He chairs the ICAS TPS Examination Panel, the ICAS BPP joint venture, and has recently taken on the role as Chair of the Audit Committee of the Royal College of Surgeons and Physicians of Glasgow.  

Mark is a member of the QAA Scotland Committee, the Global Accounting Association Education Directors Group and from 2009 – 2011 was Chair of the International Accounting and Education Standards Board.

Bruce Cartwright, Executive Director, Policy Leadership

Bruce Cartwright

Bruce Joined ICAS in May 2017 as Executive Director, Policy Leadership. Formerly a Restructuring Partner at PwC, Bruce brings 30 years’ experience from the Big Four firm.

As Head of PwC’s Scottish Corporate Restructuring practice from 2001-2016, Bruce led the team on a number of high-profile solvent and insolvent corporate restructures in Scotland and abroad. Latterly, he was appointed Global Receiver in the Receivership of OW Bunker, a $17 billion turnover Danish-listed company supplying fuel to the global shipping market.

Bruce qualified as a Chartered Accountant in 1989. Following an initial period in the Assurance practice he spent the vast majority of his professional career in PwC’s restructuring team. Primarily working across the UK, he also worked in Malaysia, Central Europe and Denmark. He was seconded to Royal Bank of Scotland and Carnaud Metal Box during his PwC career. Bruce also spent one year at Ernst & Young. Bruce is an experienced ICAS committee member, having chaired the Insolvency Committee, Technical Policy Board and Oversight Committee in relation to Scottish Independence, and sat on a further three committees. Bruce is also a former member of the ICAS Council.

Atholl Duncan, Executive Director, UK and Global

Atholl DuncanAtholl joined ICAS in 2011 following a distinguished career in broadcast journalism and corporate communications.

He is a former executive at the BBC – where he led a team of 270 journalists who delivered news, current affairs, political coverage and investigative journalism on radio, television and online. In his current role, he leads the Members’ Division and is responsible for key areas of delivering the strategy of "Building the Leading Global, Professional Community" by increasing engagement and growing communities among the 21,000 members across the UK and in 100 countries around the world. He is also responsible for digital, commercial services, events, partnership, brand, marketing, and media relations and plays a key role in ICAS’s work with politicians at Holyrood and Westminster.

Atholl is the senior non-executive director of the British Horseracing Authority, which runs the UK’s second largest spectator sport.  He is a former Director of Corporate Affairs at Scottish Water.  He served as a non-executive director at Sportscotland for more than eight years and was also a founder and trustee of the Hibernian FC Community Foundation.

Lesley Glen, Chief Operating Officer

Lesley GlenLesley Glen is Chief Operating Officer at ICAS, with responsibility for the Finance, Facilities and HR teams.

Lesley graduated from Glasgow University gaining an LLB with Honours in Public International law. Lesley undertook her accountancy training with Strathclyde Regional Council, becoming a CIPFA member and prizewinner. 

Lesley moved away from the local authority sector shortly after qualifying, spending a number of years in the education sector before joining ICAS. Lesley is a member of the Audit Committee at SRUC.

Michelle Mullen, Executive Director, Professional Standards

Michelle MullenMichelle Mullen joined ICAS in 1998 as a trainee solicitor and was appointed Executive Director in 2011. 
She has a wealth of regulatory experience after nearly 20 years working within the chartered accountancy profession. As the Executive Director, Michelle has responsibility for the various regulatory functions of ICAS, ensuring that ICAS is a leading regulator and that our 20,000 CA Members and 1,000 Firms and Affiliates adhere to the highest professional and technical standards. 
Michelle is a qualified solicitor and has developed particular interests in professional governance, regulatory law and policy and public interest discipline.

Previous page