Skip to main content


  • AddRemove
  • Build a Report 
News Releases

Former senior FCA lawyer Guy Wilkes joins Mayer Brown as financial services regulatory partner in London

1 March 2016

London - Mayer Brown today announced that Guy Wilkes has joined its Financial Services Regulatory & Enforcement practice in London as partner. Guy was formerly the acting Head of Department within the Enforcement & Market Oversight Division, Retail and Regulatory Investigations at the Financial Conduct Authority.

Guy has considerable experience of the financial services sector and front line knowledge of regulatory investigations and enforcement actions, having led several high profile FCA cases involving the UK's largest financial institutions. His cases involved a wide range of matters including anti-money laundering and anti-bribery controls, conflicts of interest, suitability of investment advice, client asset rules, market misconduct and personal culpability of individuals.

At Mayer Brown, Guy will advise on both UK and cross-border enforcement actions and investigations of UK and non-UK financial service firms, including working on the UK component of enforcement actions that more and more frequently have a multi-jurisdictional character. He joins a team that provides regulatory contentious advice and representation before regulatory bodies and in formal legal proceedings on a global basis.

Thomas Delaney, co-leader of the Financial Services Regulatory & Enforcement practice at Mayer Brown, said: "Guy will enhance our capability to service our clients in the UK and is a perfect fit to meet our clients’ needs in multi-jurisdictional enforcement matters. There is an increasing need for our clients to conduct internal investigations as well as continuing to deal appropriately with enquiries from regulators and other authorities. Guy brings significant strategic expertise to this area."

Sean Connolly, London Senior Partner at Mayer Brown, said: "We are delighted to welcome Guy to the firm. The regulatory environment for financial institutions has grown more complex and as it continues to evolve the addition of Guy to our London practice will be advantageous to our clients. Guy's experience leading regulatory investigations in the financial services sector will enable us to develop our contentious offering and our ability to help clients manage their regulatory risks, at home and abroad."

Commenting on his appointment Guy Wilkes said: "Mayer Brown’s strong cross-border regulatory and enforcement offering for global financial institutions provides a fantastic platform for me to develop my regulatory contentious and advisory practice in the London market. I have taken great personal satisfaction from leading on a number of important investigations at the FCA, as well as contributing to FCA strategy as a member of the senior leadership team. However, I’m now looking forward to returning to private practice at Mayer Brown where I can fully utilise the practical experience and technical knowledge that I've gained.”

Media Contact

  • Helen Obi
    Senior Corporate Communications & PR Manager
    T +44 20 3130 8527
  • Katie Tibbitts
    Senior PR Executive
    T +44 20 3130 8120

Related Information

  • Related People
    Thomas J. Delaney
    T +1 202 263 3216
    Sean Connolly
    Senior Partner, London
    T +44 20 3130 3131

The Build a Report feature requires the use of cookies to function properly.  Cookies are small text files that are placed on your computer by websites that you visit. They are widely used in order to make websites work, or work more efficiently.  If you do not accept cookies, this function will not work.  For more information please see our Privacy Policy

You have no pages selected. Please select pages to email then resubmit.