Keith Mathieson > RPC > London, England > Lawyer Profile

RPC
TOWER BRIDGE HOUSE
ST KATHARINE'S WAY
LONDON
E1W 1AA
England
Keith Mathieson photo

Work Department

Media.

Position

An expert in defamation and privacy law, Partner Keith Mathieson has been defending the media for over 20 years and leads RPC’s media team.

Keith defends clients involved in libel, privacy and similar claims.

Regularly instructed by Associated Newspapers Limited (Mail, Mail on Sunday and Mail Online), Mirror Group, News UK (The Sun, Times and Sunday Times) and the Financial Times, he also acts for numerous other UK and international publishers and for a number of media liability insurers.

Keith has had a prominent role in press regulation, including acting for Associated Newspapers throughout the Leveson Inquiry.

He is currently representing Mirror Group in the long-running litigation arising out of phone hacking at its three titles. He has particular experience of contentious costs matters in media cases.

Career

Publications

Principal author and editor of The Privacy Law Handbook

Contributed to The Freedom of Information Handbook, 3rd edition

Recent work highlights

Representing Mirror Group over more than 12 years in hundreds of phone hacking claims.

Advising the Daily Mail, Mail on Sunday, and MailOnline in numerous libel and privacy cases.

Providing pre-publication advice to publishers of all kinds, from the Financial Times to the Spectator.

Lawyer Rankings

London > TMT (technology, media and telecoms) > Media: Theatre, publishing and other media

(Hall of Fame)

Keith Mathieson – RPC

Led by Rupert Cowper-Coles, RPC‘s publishing practice handles a large number of defamation, commercial litigation and content disputes for media heavyweights. Focused on acting for defendants, the team is active in all publishing sub-sectors – from print and digital, to broadcast journalism – and, in addition to contentious work, also assists with pre-publication and publishing agreements. Cowper-Coles is a well-known media and content litigator and key relationship partner for several media organisations, NGOs, journalists and social media platforms. Keith Mathieson has a wealth of experience in representing large news organisations in defamation and privacy cases. Alex Wilson handles litigation in the media sector and advises on pre-publication issues; Alex Vakil is also noted for his media disputes work. Lindsay Warwick, who specialises in defamation, privacy, data and other media claims, joined the team from Associated Newspapers Limited in January 2024.

London > TMT (technology, media and telecoms) > Reputation management

(Hall of Fame)

Keith MathiesonRPC

Regarded by clients as ‘one of the best media defence practices in town‘, RPC  is a leading firm in defamation, privacy, data protection, and media law, with a broad client base that includes national and local newspapers, broadcasters, magazines, and freelance journalists. The practice is led by Rupert Cowper-Coles, who enjoys a strong reputation for his expertise in media, content, and data protection, advising clients on freedom of expression and content liability issues. Keith Mathieson brings extensive experience, having represented major news organisations in landmark defamation and privacy cases. Alex Wilson is a trusted adviser on defamation, privacy, and data protection matters, while Alex Vakil focuses on contentious issues, including data breaches and subject access requests. The team has been further strengthened by Lindsay Warwick, who brings valuable in-house experience from a leading global news publisher, particularly in pre-publication advice and media claims.