Team Members

Trevor Asserson

Trevor Asserson

Senior Partner

Trevor has been recognised for many years as one of the UK’s leading litigation lawyers. Chambers and Legal 500 refer to him as a “brilliant litigator” having a “heavyweight reputation”; being “innovative” and “able to find creative solutions”, and “a leader in his field”. He has been shortlisted as Litigator of the Year and highly ranked in the international directories for almost two decades, most recently top tier for international litigation EMEA.

Trevor has a wide range of commercial litigation experience but specialises in complex cases which are often multi-jurisdictional. He has a powerful reputation for taking on establishment institutions including successful claims against sovereign states. His clients include major banks including HSBC, JP Morgan Chase and CSFB; multi-national corporations including some of the world’s largest telecoms companies; sovereign states including the UK government and Ministry of Defence; public bodies such as the Football Association, and high net worth individuals including Boxing promoter Don King, Sonja Kohn, the principal defendant in the largest Madoff claim to come to trial in the UK and a number of high net worth individuals including household names in the UK, Israel and Russia.

Trevor has run a number of public interest claims on behalf of various causes and founded bbcwatch which analyses BBC media coverage of the Middle East.

Prior to establishing Asserson, Trevor worked at Herbert Smith, Europe’s leading litigation firm, and subsequently as Global Head of International Litigation at Bird & Bird, one of Europe’s largest multi-national firms with a premier reputation for IP, Telecoms, and IT law.

Trevor was educated at University College School and at Oxford University, where he received an open scholarship. He qualified as a UK solicitor in 1984 and was called to the Israeli Bar in 1992 after training with Herzog Fox and Neeman. Trevor has higher advocacy rights, allowing him to appear before courts in the UK, and is also a qualified mediator.

Trevor is married with two children and lives in Jerusalem.

Examples of recent work

  • Worked for the successful defendant group in the largest ever claim c£500m brought under POCA against the National Crime Agency.
  • Leading representation of a group of 14 Claimants in the renewable energy sector against the UK Government, seeking more than £200m of damages under the Human Rights Act in relation to changes in renewable energy subsidies. The case was identified by The Lawyer magazine as one of the top 20 cases to shape the legal landscape in 2018.
  • Acted successfully for Sonja Kohn who was the principal defendant in the largest claim brought to trial in the UK in relation to the collapse of Madoff securities.
  • Acted for Israeli high net worth individual in $1.5bn mining dispute.
  • Leading representation for a former high net worth individual as well as foreign companies in a claim against one of the world’s largest law firms for breach of contract, professional negligence and breaches of fiduciary duty and confidence, worth more than £65 million.
  • Set new precedents within the coroner’s court acting for bereaved families in relation to autopsy procedures
  • Successfully acting for an individual in challenging the SOCA (Serious Organised Crime Agency) regime within the UK, up to the UK Supreme Court.

Professional Endorsement

“A long and successful track record…excellent strategist…a brilliant litigator…always surprising you and the counterparty.”- Legal 500

“His advice runs to both legal and business strategies… the more complex and complicated the problem, the happier he is…ability to isolate and focus on issues of importance.”- Chambers and Partners