Mark Wassouf > Chambers of Ewan McQuater QC and Adrian Beltrami QC > London, England > Lawyer Profile

Chambers of Ewan McQuater QC and Adrian Beltrami QC
3 Verulam Buildings
Mark Wassouf photo


Mark Wassouf has a broad commercial and public international law practice.

He is frequently instructed as counsel on investment treaty and commercial arbitrations in a number of sectors, including banking, agriculture, oil and gas and telecommunications, as well as on arbitration-related applications in the English courts.

Mark also has significant experience acting as counsel in cases and matters involving complex questions of public international law and has advised governments, NGOs and individuals on sovereign treaty obligations.


Mark qualified as a solicitor with Freshfield Bruckhaus Deringer in 2011, where he was a member of the arbitration and international team. He left Freshfields in mid-2013 to transfer to the bar and now practices as a barrister at 3 Verulam Buildings in London.



Fluent Arabic and has a working knowledge of French

Lawyer Rankings

Middle East: The English Bar > Commercial

(Leading juniors)Ranked: Tier 2

Mark Wassouf3 Verulam BuildingsMark offers clear-sighted legal analysis, which is focused on the client’s commercial objectives.  He drafts with elegance and economy.’ 

London Bar > Energy

(Rising stars)Ranked: Tier 1

Mark Wassouf3 Verulam BuildingsA mature and sophisticated advocate who is unflappable, even under pressure, and has a keen eye for both the detail and the bigger picture.

London Bar > International arbitration: counsel

(Leading Juniors)Ranked: Tier 2

Mark Wassouf3 Verulam BuildingsOne of the go to juniors in the field of international investment arbitration disputes.

3 Verulam Buildings is now firmly ensconced among the leading sets in London for international arbitration and is considered by some to be ‘the leading set of chambers for international investment arbitration disputes‘. In addition to several top name commercial silks, such as Ali Malek QC, who are equally adept before the tribunals as they are before the High Court, the set also has some excellent senior juniors and junior silks with strong specialist expertise in this area, with Christopher Harris QC being of particular note. Harris represented the Moroccan government in its ICSID arbitration, Carlyle v Morocco, with Georges Chalfoun, Mark Wassouf and Cameron Miles also on the team. Another ICSID highlight was Mytilineos SA v Republic of Serbia in which Tariq Baloch was sole barrister for the Greek industrial conglomerate. In February 2022 Can Yeginsu joined from 4 New Square.

London Bar > Public international law

(Leading Juniors)Ranked: Tier 2

Mark Wassouf3 Verulam BuildingsImpressively quick grasp of complex legal issues and the way he communicates with our clients. He has a unique ability to distil complex issues.

3 Verulam Buildings is now a well-established presence in the field of public international law. The set’s credentials are especially strong at the junior end, where it fields several members with enviable track records in investment treaty arbitrations. The set’s barristers regularly work together, such as in the ICSID dispute Carlyle v Morocco concerning the SAMIR oil refinery, in which Christopher Harris QC is leading Mark Wassouf and Cameron Miles on behalf of the Kingdom of Morocco. Harris QC has been one of the practice’s drivers over the past few years, and is also representing the respondent state in the Stati v Kazakhstan Energy Charter Treaty arbitration. In February 2022 Can Yeginsu joined from 4 New Square.