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Thought Leaders

Thought Leaders

Thought Leader

WWL Ranking: Thought Leader

Global Leader

Arbitration 2019

Professional Biography

WWL Ranking: Thought Leader

WWL says

Yas Banifatemi “is an excellent advocate” with deep expertise in the energy sector. She is held in high esteem as “one of the most experienced investment treaty counsel in Paris”.


Yas Banifatemi co-heads Shearman & Sterling’s international arbitration practice worldwide. She also leads the firm’s public international law practice and co-heads the firm’s energy practice.

Yas acts as counsel in both commercial and investment arbitration. Her commercial arbitration experience includes matters related to the oil and gas and energy sectors, mergers and acquisitions, joint ventures, and construction projects. Her investment treaty arbitration experience includes cases brought under both bilateral and multilateral treaties, acting for investors and states.

A PhD in public international law, she also regularly advises states, state-owned entities, companies and international organisations on public international law matters involving law of treaties, state contracts, state responsibility, immunities of states and international organisations, international boundaries and law of the sea.

Yas also acts as arbitrator. She is a vice president of the ICC International Court of Arbitration and a member of the LCIA Court. She is also a member of the ICSID panel of arbitrators, appointed by the chairman of ICSID’s administrative council.

She has authored numerous publications on international arbitration and public international law. She acts as executive director and coordinator of the New York Convention Guide Project, a research project undertaken with UNCITRAL in relation to the UNCITRAL Secretariat Guide on the Convention on the Recognition and Enforcement of Arbitral Awards.

She lectures on international investment law at Panthéon-Sorbonne University (Paris 1) and is a visiting lecturer in law at Yale Law School and Harvard Law School. She is a founding member of the International Academy for Arbitration Law.

Yas speaks French, English and Farsi.

National Leader

WWL Ranking: Recommended
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