Tom Weisselberg KC

Cy Benson is a U.S. and English qualified partner in the London office of Gibson, Dunn & Crutcher and serves as Co-Chair of the firm’s International Arbitration Practice Group. Mr Benson represents clients from a wide variety of sectors before commercial and investment treaty tribunals with particular experience in telecoms, oil & gas, mining and infrastructure disputes. He continues to represent a Dutch and a Luxembourg investor in two separate multi-billion dollar arbitration ...

Mark Sperotto is a partner in the London office of Gibson, Dunn and Crutcher and a member of the Corporate Transactional practice group. Mr. Sperotto has broad experience in both the UK and Italian markets, covering all aspects of corporate, private equity and investment banking with a focus on cross-border M&A, leveraged buy-outs, fund establishment and international corporate finance and equity capital markets transactions. Mr. Sperotto’s experience extends to advising private equ...

Christopher Haynes is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law. Christopher, 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 Christopher is held by other top lawyers in the same geographic and legal practice area.

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.

Charlie Caher is a partner in the Firm's Litigation/Controversy Department, and a member of the International Arbitration Practice Group. He joined the Firm in 2008. Mr. Caher is based in the London office, where he practices International Arbitration and English High Court Litigation.

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

Dorothee Fischer-Appelt is a New York and English-qualified shareholder with 24 years' experience in international capital markets and M&A transactions. She represents companies, financial institutions and selling shareholders in connection with international equity and debt capital markets transactions, including IPOs, secondary equity offerings, structured equity offerings, convertibles, warrants, block trades, high yield offerings, Rule 144A debt offerings, covered bonds, exchange offe...

Bill Schnoor is a partner in and former co-chair of the firm’s Technology and Life Sciences groups. He works in all areas of corporate, securities and partnership laws, with a primary focus on advising high-growth technology and life sciences companies. He joined Goodwin in 2005, after a 21-year career with Testa, Hurwitz & Thibeault, LLP, and quickly became co-chair of Goodwin’s technology and life sciences practices. Under his leadership the Technology and Life Sciences grou...

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...

Stephen A. Thierbach is a US-qualified corporate partner in the London office of Gibson, Dunn & Crutcher. A senior U.S. securities lawyer, he advises issuers, underwriters and selling shareholders on complex, innovative and multi-jurisdictional offerings of equity, equity-related and debt securities. He has a broad capital markets transactions practice, with a focus on initial public offerings and secondary offerings, and has represented corporates, investment banks, private equity firms ...