Department profile
Quinn Emanuel Urquhart & Sullivan, LLP

Public International Law

UK Guide 2026 : UK-wide

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Quinn Emanuel Urquhart & Sullivan, LLP

Rankings

Chambers Review

Provided by Chambers

Public International Law - UK-wide

Band 4

What the Team is Known For

Quinn Emanuel Urquhart & Sullivan has a talented team with expertise in handling high-value investment treaty arbitrations. The firm possesses a wealth of experience representing both states and companies in disputes arising with regard to the financial, construction, infrastructure, energy and mining industries. It is experienced at acting in investment treaty arbitrations under the auspices of ICSID and UNCITRAL, among others. The team represents countries from around the world, with particular strength in the CIS region.

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Work Highlights

Provided by Chambers

  • Quinn Emanuel represented the investor, Nasib Hasanov, in an investment treaty arbitration under the auspices of ICSID against the Republic of Georgia.

Strengths

Provided by Chambers

  • The team is passionate about their work and understand the importance of personal relations that underpins trust when dealing with high stakes matters.

    Public International Law respondentUK

  • The firm’s deep legal expertise, combined with its aggressive litigation strategy, allows it to tackle intricate legal issues.

    Public International Law respondentUK

  • They have this unique ability to take on the most complex and challenging cases, and they always seem to find the best solutions, no matter how tough things get.

    Public International Law respondentUK

  • The department is extremely experienced, highly professional, and very easy to cooperate with. It’s always a pleasure to work with them.

    Public International Law respondentUK

Notable Practitioners

Provided by Chambers

  • Anthony Sinclair
    Anthony Sinclair

    Anthony Sinclair

    Anthony Sinclair has considerable expertise in PIL as well as international arbitration experience. He advises states along with public and private companies on a range of proceedings, including those brought under BITs, particularly in relation to mining and natural resources.

    • He is good in terms of interactions with us as a client as he is very responsive.

      Public International Law respondentUK
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  • Stephen Jagusch
    Stephen Jagusch

    Stephen Jagusch

    Stephen Jagusch KC has longstanding experience in international arbitration, regularly acting on behalf of states and investors in disputes brought under BITs. His recent work includes significant matters concerning jurisdictions in Asia, Africa and the CIS region.

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  • Dominic Roughton
    Dominic Roughton

    Dominic Roughton

    Dominic Roughton is highly adept at acting for clients in the natural resources and energy sectors on a range of PIL issues, including maritime delimitations and international sanctions. He also handles significant international arbitrations.
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Ranked Individuals at Quinn Emanuel Urquhart & Sullivan, LLP (3)

UK-wide

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