Twenty Essex
Simon Olleson is a barrister with extensive experience in the legal field, currently practicing at Twenty Essex since February 2020. Prior to this role, Simon served at Three Stone from April 2016 to January 2020 and at 13 Old Square from October 2004 to April 2016. Simon also worked as a Research Fellow at the Lauterpacht Centre for International Law from 2001 to 2004. Educational qualifications include a Diploma in Public International Law from the University of Cambridge, an LLM in International Law from New York University, and a BA (Hons) in Law from the University of Cambridge, complemented by studies at Université de Poitiers.
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Twenty Essex
A leading commercial set of chambers, the barristers of Twenty Essex offer outstanding legal minds combined with a modern and commercial disputes experience. Our clients include major global companies, institutions, governments and their advisors from around the world and our barristers advise and appear as advocates in court or arbitration in relation to a broad range of company and commercial, EU, competition, and public international law disputes. Practices involve the preparation and conduct of litigation before a wide range of courts and tribunals, in the UK, in foreign jurisdictions as well as on the international stage. The vast majority of the work is international in nature and we have well-established links to many overseas markets, including through our Asian hub in Singapore servicing clients throughout Asia Pacific and beyond. The set is also home to a number of highly respected domestic and international arbitrators and mediators, some of whom were previously judges either in the UK or overseas.