

International Arbitration
Allen & Overy’s International Arbitration group advises a diverse range of corporates, financial institutions and governments on complex cross-border commercial arbitrations and investment treaty arbitrations.
With arbitration experts, including leading advocates, spread across our global network of offices, we advise on the most pressing and complex disputes wherever they arise.
A&O’s international arbitration expertise spans the full range of sectors in which arbitration is used, including:
- Energy and natural resources
- Construction and infrastructure projects
- Telecommunications
- Life sciences
- Banking and finance
- Intellectual property rights
- M&A and joint ventures
Representing clients in arbitrations under all the key rules, including the ICC, LCIA, HKIAC, SIAC and UNCITRAL Rules, our specialist practitioners around the world are qualified in many jurisdictions and fluent in numerous languages. Senior members of our team regularly sit as arbitrators and hold key positions with the leading arbitral institutions and/or legal associations. Our experience allows us to most effectively represent our clients' best commercial interests.
We typically conduct our own advocacy in clients’ arbitration cases, delivering cost savings and ensuring our advocates are involved from the very start of proceedings. Our approach to the conduct of matters is always informed by our advocacy experience.
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Related content

International Arbitration Review
Recent developments and emerging trends in international arbitration law and policy
News and insights

Publications: 05 May 2022
Historically, Singaporean law prohibited third party funding arrangements and outcome-related fee structures (ORFS) such as “No-Win, No-Fee” or “No-Win, Less-Fee”.

Publications: 03 May 2022
Costs, damages and duration in investor-State arbitration in the CEE Region
Our new study on costs, damages and duration in investor-State arbitration in the CEE Region examines 105 investor-State dispute settlement (ISDS) cases conducted under ICSID, UNCITRAL and other…

Publications: 06 April 2022
The First ICSID Flagship Amendments
The first amendments to the ICSID Rules since 2006 will be available for use from July 2022 onward, bringing greater transparency to the process and offering clearer guidance on key issues such as…
Awards
- Band 1, Dispute Resolution, Global Multi-Jurisdictional, Chambers Global 2022
- International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2020
- Leading firm (top tier) ranking in the “Leaders League” table for International Arbitration (Spain) 2022
Recognition
Prominent international team which maintains a respected arbitration practice.
Chambers Global 2022, International Arbitration, Global Market Leaders
Clients appreciate that Allen & Overy ‘have extensive global expertise which they are able to quickly leverage to provide a very strong global solution.’
Chambers Global 2022, International Arbitration, Global Market Leaders
Allen & Overy is an exceptional magic circle firm with an extensive global presence in key jurisdictions worldwide… Notable expertise in the construction, energy and natural resources sectors.
Chambers Global 2022, Dispute Resolution: Multi-Jurisdictional
Commentators praise the firm, stating that ‘they undoubtedly have a fantastic practice’ and describing the arbitration group as a ‘truly global practice.’
Chambers Global 2018, International Arbitration, Global-wide
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