Stephen Kosmin joins 11KBW, further strengthening its public, commercial and international law practices.


We are pleased to announce that Stephen Kosmin, formerly of 39 Essex Chambers, is joining chambers on Monday, the 3rd of December.

James Goudie QC and John Cavanagh QC, joint Heads of Chambers say:

We are delighted to be joined by Stephen whose practice will add further strength and depth not just to our public law team, but also to our outstanding procurement, commercial and financial regulatory law practices.  In addition, his experience in international disputes further enhances our growing international arbitration and public international law practice.  Stephen’s recruitment is in line with our strategy to consolidate and enhance our core areas of practice.” 

Stephen’s experience in financial regulation and financial services law extends to disputes concerning the jurisdiction and operation of financial regulators and dispute resolution schemes, tax avoidance schemes, collective investment schemes, financial product mis-selling, insurance contracts, and the Bribery Act.

Stephen is also highly regarded in public law, acting both for claimants and the Government in public law proceedings.  As a member of the Attorney General’s B Panel of Junior Counsel to the Crown, Stephen acts for the Government in national security cases of greatest sensitivity.  Further, he has appeared for and against the Government in some of its highest profile recent litigation in the Supreme Court including Bancoult (No 3) and Cox v Ministry of Justice.

Stephen’s commercial practice focusses on high-value energy and finance disputes. He has significant knowledge and professional experience of company law, commercial remedies, and alternative dispute resolution.  He also has close familiarity with a number of overseas jurisdictions, in particular New York, where he is a qualified attorney, and Israel, where he has been a Foreign Law Clerk in the Supreme Court.

Stephen has extensive experience of arbitral proceedings, as well as adjudications and negotiations.  He also has considerable experience and expertise in public international law.  His practice regularly encompasses advising on and litigating issues of public international law in the English courts.  Stephen is currently instructed by the Foreign Office in respect of a number of public international law issues.

For more details about Stephen read here.