John Beggs KC

Jason Hambury is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and International Arbitration. Jason, who practices law in London, United Kingdom, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jason is held by other top lawyers in the same geographic and legal practice area.

Zaneta Wykowska is a top attorney recognized by Best Lawyers in the practice area(s) of Securitisation Law. Zaneta, who practices law in London, United Kingdom, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Zaneta is held by other top lawyers in the same geographic and legal practice area.

Mark Beardsworth is a partner in Cadwalader’s White Collar Defense and Investigations Group, resident in the London office. Mark focuses his practice in the defense of serious fraud and criminal matters and has been involved in prosecutions brought by the Serious Fraud Office, the Financial Services Authority, HM Revenue and Customs, the Financial Reporting Council and the Environment Agency. These cases are often complex, high profile and international in nature. Mark has a special int...

Ceyda Knoebel is an English-Turkish dual-qualified solicitor and Of Counsel in the London office of Gibson, Dunn & Crutcher. She is a member of the firm’s Dispute Resolution and International Arbitration Groups. Ms. Knoebel advises on a wide range of disputes involving public international law and general commercial matters in common and civil law jurisdictions. She has experience in both commercial and investment treaty arbitration proceedings under the UNCITRAL, ICSID, ICC, VIAC a...

Arvin Abraham is a top attorney recognized by Best Lawyers in the practice area(s) of FinTech. Arvin, who practices law in London, United Kingdom, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Arvin is held by other top lawyers in the same geographic and legal practice area.

Simon Airey focuses his practice on global, cross-border and internal investigations, financial and regulatory crime, bribery and corruption, money laundering, tax and fraud inquiries, data breaches, dawn raids, asset tracing, international enforcement and corporate compliance issues. He has conducted a wide range of investigations and corporate defence assignments in different sectors, including construction, defence, financial services, gambling, oil and gas, logistics, pharmaceuticals and ...

Deborah Ruff leads Pillsbury’s Arbitration - U.S. & International practice. She has extensive experience in multi-jurisdiction disputes, with a focus on high-value and complex international arbitration in the energy, infrastructure and construction, telecommunications and financial sectors. Deborah conducts international arbitration disputes often over JOAs, the construction of and off-take from refineries and petrochemical plants, as well as rig, energy trading and transport, and c...

Vincent Zabielski focuses on international nuclear energy matters, including providing strategic advice related to new-build EPC contracts, power purchase agreements, operation and maintenance, fuel supply chain, liability issues, and export controls. Prior to joining Pillsbury, Vincent was Senior Nuclear Counsel for the UAE nuclear new build program, where he was responsible for integration of nuclear licensing strategy with the largest-ever public financing of a public works project. During...

John McElroy is a top attorney recognized by Best Lawyers in the practice area(s) of International Arbitration. John, who practices law in London, United Kingdom, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

Gary Born is the chair of the International Arbitration Practice Group. Mr. Born is widely regarded as the world's preeminent authority on international commercial arbitration and international litigation. He has been ranked for more than 20 years as one of the world's leading international arbitration advocates and the leading arbitration practitioner in London.