Jon Brown

Managing Director
Specializes in investigations, regulatory matters, and disputes 
Significant experience in the sports sector 
Advises on contentious insolvency, asset recovery, and director conduct matters (JIEB qualified)
London
@alvarezmarsal
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Jonathan Brown is a Managing Director with Alvarez & Marsal Disputes and Investigations in London. He advises clients on investigations, disputes, and regulatory matters. He has additional experience in transactions and particular depth in the sports sector. 

Mr. Brown has over 25 years of experience advising boards, senior executives, and legal counsel on high-stakes matters across more than 50 countries. His investigation work focuses on allegations of fraud, corruption, and financial misconduct and frequently involves parallel UK and US enforcement. Mr. Brown has acted as an expert and shadow expert in disputes involving accounting irregularities or the conduct of senior management and directors. As a professional qualified by the Joint Insolvency Examination Board (JIEB), he brings experience in stressed and failed businesses, including matters involving insolvency, asset recovery, and misfeasance. 

Mr. Brown has significant experience in the sports sector, including conducting ethics investigations, forensic reviews, and governance assessments for multiple international sporting federations. He has given expert evidence before the Court of Arbitration for Sport and in proceedings relating to the Premier League’s profit and sustainability rules. He advises investors, leagues, clubs, and governing bodies on acquisitions, investments in sports infrastructure, and counterparty risk, particularly where financial, regulatory, and integrity considerations are critical to investment decisions. 

Prior to joining A&M, Mr. Brown was a Senior Managing Director with Ankura in London, where he co-led the Global Investigations & Forensic Accounting and Global Sports Advisory practices. He previously led the EMEA Investigations and Forensic Technology teams at Control Risks and spent a decade at EY’s Forensic practice. He began his career in UK regulatory enforcement with the Insolvency Service and Serious Fraud Office. 

Mr. Brown is a Fellow of the Association of Chartered Certified Accountants (ACCA). He is a panel arbitrator at Sport Resolutions and a Director of the British Association for Sport and Law and serves on the Executive Board Risk Committee of World Athletics.