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UK Guide

International Arbitration: Investor-State Arbitration — UK-wide

We do not rank firms for this territory and specialism but we rank individuals.

Band 1

WilmerHale

From the Chambers UK guide

Gary Born is universally considered as a star of the UK international arbitration market, with commentators naming him as "a leading light in the field" and a "very intelligent and impressive man." He is respected for his excellent advocacy in ad hoc and institutional arbitrations, regularly handling billion-dollar disputes in the oil and gas and the automotive industries. In addition to his commercial practice, he is active in investor-state disputes, as well as disputes involving parastatal entities. Market sources consider him an "excellent" choice for arbitrator roles.

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Band 1

Fietta

From the Chambers UK guide

Stephen Fietta left Volterra Fietta in 2015 to found Fietta, a public international law boutique. He is highly respected, with commentators describing him as "a really thorough advocate, a thoroughly nice person and a true expert" who is also "great with clients." Sources further identify him as "an outstanding lawyer capable of simplifying matters without losing sight of the details." He advises on investor-state arbitration.

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Band 1

Debevoise & Plimpton LLP

From the Chambers UK guide

Peter Goldsmith QC is "highly regarded and a well-established leader in international arbitration," according to market sources, who go on to say: "Goldsmith has experience and gravitas; having him as counsel can have a significant difference." He regularly represents commercial clients in arbitrations and related court hearings around Europe and Asia. He is also celebrated for his unique insights into critical political and diplomatic issues, having previously served as the Attorney General. He represents both states and private corporations before domestic and international arbitral tribunals and courts.  

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Band 1

Quinn Emanuel Urquhart & Sullivan, LLP

From the Chambers UK guide

"Master of strategy and implementation" Stephen Jagusch QC is widely praised by clients for being "extremely persuasive and standing firm in protecting the client's interests." Jagusch specialises in international arbitrations concerning commercial contract, energy and construction disputes, handling the whole range of institutional as well as ad hoc arbitral proceedings across the globe. He is known for his expertise in investor-state arbitrations under bilateral and multilateral investment treaties, including the ECT, and is a respected arbitrator.

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Band 1

Clifford Chance LLP

From the Chambers UK guide

Audley Sheppard QC is widely respected for his long-standing experience in the arena of international arbitration, and particularly for his expertise in disputes concerning infrastructure, energy and trade. Sheppard, who took silk last year, represents clients in disputes arising around the world, especially in Eurasia and Africa. He is also held in high regard for investment arbitration work. One impressed client comments: "He is one of the best lawyers in arbitration, from a professional point of view and a human point of view. He's a great guy and very friendly to the client."

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Band 1

Quinn Emanuel Urquhart & Sullivan, LLP

From the Chambers UK guide

Anthony Sinclair's experience covers commercial arbitrations in the energy, mining, infrastructure and telecommunications sectors. Clients say: "He is switched on, understands the client's objective and manages expectations beautifully." He also assists states and private investors in disputes under the ECT and various BITs.

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Band 1

Volterra Fietta

From the Chambers UK guide

Robert Volterra of Volterra Fietta is a well-known figure in the London market. He is personally called upon by sovereign states to advise on investment arbitration and inter-state issues. He is also a popular choice among corporates for claims brought under investment treaties.

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Band 2

Baker Botts UK LLP

From the Chambers UK guide

Alejandro Escobar is sought after for his expertise in commercial arbitrations arising in Latin America and Russia. He also acts on behalf of states and commercial enterprises in investment arbitrations, with sources commenting that he is "very dedicated to the study and understanding of national and international law."

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Band 2

Three Crowns LLP

From the Chambers UK guide

The "very impressive" Constantine Partasides QC is widely regarded as a heavyweight of international arbitration, and has particular expertise in energy sector disputes. Commentators note: "He's an outstanding, extremely talented and very hard-working lawyer with deep energy sector expertise." He is active in investor-state disputes, as well as commercial disputes involving state-owned oil and gas companies.

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Band 2

Three Crowns LLP

From the Chambers UK guide

Gaëtan Verhoosel handles sizeable international commercial arbitrations, particularly energy, construction and mining sector disputes. Clients include oil and gas majors as well as manufacturing companies. His practice also covers investor-state disputes, with a particular focus on representing energy companies in claims arising out of undue government interference in their operations.

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Band 2

Linklaters

From the Chambers UK guide

Matthew Weiniger QC of Linklaters is highly regarded for his expertise in international arbitrations governed by the rules of leading arbitral bodies, including the ICC, LCIA and Zürich Chamber of Commerce, as well as ad hoc arbitrations. Weiniger specialises in disputes arising in Africa and in representing clients from Russia and the CIS. Clients have been impressed by "his legal opinion and advice, the way he laid out his rationale and his excellent cross-examination of witnesses." He is held in high regard by the market for his expert handling of investor-state disputes arising in the financial services and energy industries.

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Band 3

Hogan Lovells

From the Chambers UK guide

Markus Burgstaller focuses on public international law matters and has significant expertise in investment treaty arbitration, particularly in Europe, the CIS and Asia. As well as handling arbitrations, he also advises on court litigation challenging arbitral awards. Clients say he is "a very specialised lawyer and an impressive young partner."

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Band 3

Latham & Watkins

From the Chambers UK guide

The "very impressive" Charles Claypoole handles investor-state arbitrations, including those brought under investment treaties.

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Band 3

Steptoe & Johnson

From the Chambers UK guide

Matthew Coleman of Steptoe & Johnson advises on investor-state arbitrations around the world, with particular experience in cases arising in African states and concerning the expropriation of property.

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Band 3

Simmons & Simmons LLP

From the Chambers UK guide

Stuart Dutson of Simmons & Simmons LLP is well regarded for his expertise in aviation and financial services disputes. He has experience appearing before arbitral tribunals seated in London, Europe, Africa and the Middle East. Market commentators say: "He's very bright, very laid back and easy to deal with." He is also known for his expertise in investment treaty disputes.

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Band 3

Skadden, Arps, Slate, Meagher & Flom (UK) LLP

From the Chambers UK guide

David Herlihy represents clients in international arbitrations under the auspices of the ICC, ICDR and LCIA, and in arbitration-related court proceedings. Clients say: "Herlihy has been nothing but exceptional in our interactions with him." In addition to his commercial arbitration work, he has a strong practice in investor-state cases.

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Band 3

Latham & Watkins

From the Chambers UK guide

Sophie Lamb is well thought of within the international arbitration market and has represented clients from a wide range of industries, including automotive, energy, mining and pharmaceuticals. Commentators note: "Lamb focuses on clarity and has excellent advocacy skills." She is also known for her experience advising governments and businesses on investment treaty disputes governed by the rules of BITs, NAFTA and the ECT.

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Band 3

Freshfields Bruckhaus Deringer LLP

From the Chambers UK guide

Sylvia Noury specialises in investor-state arbitrations, with experience handling matters for clients in the telecommunications, energy and natural resources sectors. Sources say she is "very well respected" in the market.

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Band 3

Reed Smith LLP

From the Chambers UK guide

Belinda Paisley specialises in investment treaty arbitrations, with a wealth of knowledge on multilateral and bilateral treaty disputes concerning matters of inequitable treatment and expropriation. Her experience includes advising on disputes arising in the banking, energy and telecommunications sectors. According to observers, she "manages big cases efficiently and effectively with a sound sense of what can be achieved and how to achieve it."

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Band 3

Boies Schiller Flexner (UK) LLP

From the Chambers UK guide

Dominic Roughton joined Boies Schiller Flexner (UK) LLP from Herbert Smith Freehills in April 2017. He provides robust representation to international organisations, governments, state agencies and private corporations on investor-state arbitrations. Clients praise him for being "very capable, self-motivated and quick to respond."

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Band 3

Ashurst

From the Chambers UK guide

Matthew Saunders represents clients in international arbitrations under a range of institutional rules, specialising in energy industry disputes arising in Africa, Russia and the CIS. Observers state: "Saunders is an excellent advocate who truly understands how to engage with an arbitration tribunal in an international environment." He also acts for both states and major corporates on investor-state disputes, including arbitral proceedings brought under investment treaties.

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Band 3

Allen & Overy LLP

From the Chambers UK guide

Jeffrey Sullivan acts on behalf of states and investors in ICSID and UNCITRAL-governed investment treaty disputes. He is also adept at handling ECT claims. Commentators say: "He is a very focused lawyer, client-friendly and very efficient."

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Up and Coming

Quinn Emanuel Urquhart & Sullivan, LLP

From the Chambers UK guide

Epaminontas Triantafilou concentrates his practice on investment treaty arbitrations and has experience in disputes arising across the globe, including Europe, South East Asia, Central Asia, Latin America and the Middle East. According to observers, "he perfectly understands the concerns of his clients and is unbelievably committed to doing the best job for them."

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Up and Coming

Jones Day

From the Chambers UK guide

Baiju Vasani of Jones Day attracts praise for his "cool and calm" advocacy in ICSID and other investor-state arbitrations. He is particularly active representing commercial investors in disputes arising in Eastern Europe and Central Asia.

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