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Tokyo, Japan
Ken Arahari became Executive Managing Partner for Advisory Services at EY ShinNihon, in July 2025. He is also the EY Japan Forensic and Integrity Services Leader.
He has over three decades of experience in accounting audits and advisory engagements for listed companies and public sector agencies.
As a third-party committee member, he engages in a large number of investigations into suspected fraud, including accounting fraud, bribery, violations of anti-trust laws and quality fraud. He also advises on risk assessments which include responding to US regulatory authorities and offering support for improving compliance programs. His knowledge and skills allow him to support clients in assessing and improving anti-fraud measures (fraud detection and prevention) as well as responding to deferred prosecution agreements related to US FCPA violations.
More recently, he is also supporting the establishment of fraud risk monitoring systems that leverage data analytics, drawing on his experience in audit digital transformation.
He has served as a member of various government and JICPA committees, including ad hoc committee member of the Ministry of Internal Affairs and Communications' Commission on Policy Evaluation and Evaluation of Incorporated Administrative Agencies.
He is a Certified Public Accountant and a graduate of Keio University Faculty of Economics.
How Ken is shaping the future with confidence
Today, while many companies are strengthening their responses to fraud risks, there is no shortcut to effective risk management.
Senior management may wish to instill integrity in their employees but they need to do more than talk about it: they must also take action and operate in a manner that raises no doubts about the integrity of the leadership team. Companies that operate globally face the particular challenge of implementing critical measures to combat significant fraud risks across a wide range of activities. This is why we aim to achieve efficient fraud risk management by thinking out of the box and adopting a creative approach.
My goal is to support companies by leveraging the latest advances in methods and technologies, combined with insights gained from prior experience in risk response, to pave the way for a workplace where no one will be the victim of fraud.