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Twenty Essex

Work 020 7842 1200
Fax 020 7842 1270
London, Singapore

Henry Byam-Cook

Work 020 7842 1200
Twenty Essex (Twenty Essex)

Work Department

  • Arbitration and mediation
  • Banking
  • Civil fraud
  • Commercial dispute resolution
  • Commercial law
  • Energy and natural resources
  • Information technology
  • Insurance and reinsurance
  • Private international law
  • Shipping and international trade


Henry practises in a range of commercial disputes, including shipping and international trade, energy and natural resources, IT and telecoms, fraud, and insurance. He has extensive experience of jurisdictional disputes and interim applications (including injunctive relief), together with trials, often in disputes with a complex, technical dimension.

He regularly appears in the English High Court (Commercial Court, Technology and Construction Court, and Chancery Division) and has also appeared in the Supreme Court and Court of Appeal. Henry frequently represents clients as sole counsel against QCs on the other side, but also has considerable experience working as part of a larger team.

Henry has a strong arbitration practice. He represents clients in all forms of international arbitration – ad hoc, institutional (including ICC and LCIA) and trade arbitrations (LMAA, GAFTA and FOSFA). In addition, he has considerable experience of applications to court in support of arbitral proceedings, appeals against arbitration awards, jurisdiction challenges and points relating to arbitration law. He accepts appointments to sit as an arbitrator.

Henry was the winner of ‘Shipping Junior of the Year’ at the Chambers Bar Awards 2018.


Called 2000, Inner Temple; Judicial Assistant to the Lord Justices of Appeal 2001.


  • LMAA: Supporting Member
  • Commercial Bar Association
  • Society for Computers and Law
  • London Common Law and Commercial Bar Association
  • Fraud Lawyers Association


Lincoln College, Oxford (BA (Hons)); City University (Diploma in Law); Everard Ver Heyden Foundation prize ICSL (1999/2000).

London Bar


Within: Leading Juniors

Henry Byam-Cook - Twenty Essex ‘ Cool, calm, collected and an absolute pleasure to work with; his work is comparable to, if not better than, many QCs. ’

Within: Commodities

Twenty Essex is ‘still the standout set for commodities matters’ and clients note that is has 'some real quality among its members, both silks and juniors'. One remarks that 'the clerks are helpful, commercially flexible and responsive'. The set combines great depth in shipping matters with in-depth knowledge of commodities trading across a broad range of soft commodities, oil, coal, gas, and metals. Co-head of chambers Duncan Matthews QC has more than 30 years' experience in this field and he successfully appeared for the claimant in Euro-Asian Oil SA v Credit Suisse AG, in which the Court of Appeal upheld a $15m award arising from a dispute concerning a contract to buy oil. Highly regarded senior-junior Henry Byam-Cook defended oil and gas company OMV in claims brought in the Commercial Court by Glencore.

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International arbitration: counsel

Within: Leading Juniors

Henry Byam-Cook - Twenty Essex ‘ Bright, thorough, and has a keen eye for the essential legal and commercial points in a matter. ’

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Within: Leading Juniors

Henry Byam-Cook - Twenty Essex ‘ Not only is he phenomenally intelligent and hardworking, he is also a delight to work with. ’

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