Mark Tushingham > Twenty Essex > London, England > Barrister Profile

Twenty Essex

Work Department

  • Arbitration
  • Commercial litigation
  • Civil fraud and asset tracing
  • Banking and finance
  • Jurisdiction, conflicts and enforcement
  • Shipping and commodities
  • Private international law
  • Public international law


Mark has a broad practice in commercial law, international arbitration and public international law. He has acted for corporations and State-owned entities in a wide variety of disputes at all levels of the English courts and in international arbitrations under all major institutional rules.

Mark recently acted for the “Guaidó Board” of the Central Bank of Venezuela in its successful appeal to the Supreme Court (and subsequent proceedings in the Commercial Court) in widely reported proceedings arising out of Venezuela’s constitutional and political crisis and the battle for control of Venezuela’s gold reserves at the Bank of England.

Mark is currently instructed in a number of other high-profile cases, including an appeal to the Privy Council (from the Court of Appeal of the Cayman Islands) concerning the arbitrability of disputes between shareholders and an ICSID arbitration brought by a US investor against Slovakia concerning oil and gas exploration.

Mark is described as “fantastic lawyer” with a “brilliant legal brain” in legal directories, where he is ranked as a leading junior in the fields of international arbitration and commercial dispute resolution.

Before joining the English Bar in 2016, Mark practised as a barrister in New Zealand at a leading commercial set. He also worked as a law clerk for two leading international arbitrators, where he gained exposure to many international commercial arbitrations and investment treaty arbitrations.

Mark holds degrees in both Law and Accounting from the University of Auckland. Mark also holds a Bachelor of Civil Law degree from the University of Oxford where he obtained a Distinction.


Spanish (conversational)

Lawyer Rankings

London Bar > International arbitration: counsel

(Leading Juniors)Ranked: Tier 3

Mark Tushingham  – Twenty Essex ‘Mark is one of the best juniors around. His knowledge of law and an ability to produce concise advice fast is very impressive. Mark is an exceptional writer: his written advocacy is extremely persuasive and eloquent. Excellent and incisive oral advocacy.’