Thomas O'Maoileoin

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...

Graham Defries is a top attorney recognized by Best Lawyers in the practice area(s) of Life Sciences Law. Graham, 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 Graham is held by other top lawyers in the same geographic and legal practice area.

Greg Norman is a top attorney recognized by Best Lawyers in the practice area(s) of Private Equity Law. Greg, 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 Greg 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.

Peter Castellon is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Peter, who practices law in London, United Kingdom, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter is held by other top lawyers in the same geographic and legal practice area.

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.

Ani Kusheva is a top attorney recognized by Best Lawyers in the practice area(s) of Private Equity Law. Ani, 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 Ani is held by other top lawyers in the same geographic and legal practice area.

Naomi Feinstein has more than 30 years of experience dealing with all aspects of employment law, both contentious and noncontentious, including transactional work. She has particular experience advising on employment issues arising from mergers and acquisitions (including coordinating employment advice on cross-border sales and acquisitions) and on the employment aspects of business restructurings and reorganisations. Naomi provides day-to-day employment advice to clients across a wide-range ...

Hilton Mervis is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation. Hilton, who practices law in London, United Kingdom, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hilton is held by other top lawyers in the same geographic and legal practice area.

Patrick Doris is a partner in Gibson Dunn’s Dispute Resolution Group in London, where he specialises in global white-collar investigations, commercial litigation and complex compliance advisory matters. Mr. Doris’ practice covers a wide range of disputes, including white-collar crime, internal and regulatory investigations, transnational litigation, class actions, contentious antitrust matters and administrative law challenges against governmental decision-making. Mr. Doris handle...