Miriam Helena Boxberg

Door Tenant


Miriam Helena Boxberg is a Barrister with a unique practice ranging from international law and human rights to corporate responsibility and climate litigation. She works on high-profile cases before domestic and international courts.

Miriam is currently employed by the Foundation for International Law for the Environment (FILE). FILE is the strategic ​collaborator and enabler behind ​hundreds of climate litigations and legal interventions around the world.


Prior to joining FILE, Miriam worked as an Employed Barrister and Climate Lawyer at the leading environmental law charity ClientEarth. At ClientEarth, Miriam worked on the filing of ClientEarth's world-first derivative claim against the Board of Shell plc in the High Court of England and Wales. The claim alleges breaches of the directors' obligations under the UK Companies Act for failing to manage climate risk and properly prepare the company for the energy transition. The case gained unprecedented support from large institutional investors and fellow shareholders. It was widely covered in the press, including in the New York Times, Financial Times, The Guardian, Reuters, and many other outlets.

Before ClientEarth, Miriam worked as a Barrister and Associate Defence Counsel in pre-trial and trial proceedings before the Kosovo Specialist Chambers in The Hague. She also advised governments on instituting legal proceedings before the International Court of Justice under the Torture and Genocide Conventions.

Miriam previously worked for the British and Russian judges at the International Court of Justice, a position for which she was nominated by the University of Cambridge Faculty of Law.

Miriam also gained three years’ experience as a lawyer at the leading American law firm WilmerHale LLP, where she advised Fortune 500 companies on high-value international arbitration and international trade disputes, including before the World Trade Organization, International Centre for the Settlement of Investment Disputes (ICSID), the London Court of International Arbitration, the English High Court and the Dutch Supreme Court.

Next to her legal studies, Miriam held various research positions, including at the Faculty of Law of the University of Cambridge and at the British Embassy in The Hague.


  • Dutch (native proficiency)
  • German (native proficiency)
  • English (native proficiency)
  • French (professional working proficiency)
  • Spanish (limited working proficiency)
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PROFILE: Miriam Helena Boxberg

Year called




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Human rights law


020 7489 2727


Called to the Bar of England and Wales in 2018

University of Cambridge, LLM in International Law

The Hague University, The Netherlands, LLB in International and European Law, with distinction (valedictorian)

BPTC, very competent

GDL, with commendation

For her studies, Miriam received prestigious scholarships and awards from the UK, Germany, and the Netherlands, including from the Honourable Society of Gray’s Inn (a Residential Scholarship, the Holt Award, David Karmel Award and the Ann Felicity Goddard Scholarship), Newnham College Cambridge (RM Jackson Award), the German National Academic Foundation (Studienstiftung des deutschen Volkes), Stichting VSBfonds and Prins Bernhard Cultuurfonds.


International Criminal Court, List of Assistant Counsel

UK Attorney General, “Junior Junior” Government Counsel Panel

Qualified to accept Public Access Instructions

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