Angus Ashman

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 ...

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.

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

Annabel Thomas is a top attorney recognized by Best Lawyers in the practice area(s) of Fraud. Annabel, 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 Annabel is held by other top lawyers in the same geographic and legal practice area.

Sebastian FitzGerald is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Sebastian, 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 Sebastian 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.

Philip Bowden is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Philip, 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 Philip is held by other top lawyers in the same geographic and legal practice area.

Penny Madden is an English qualified Queen’s Counsel and serves as Co-Partner-in-Charge of the London office at Gibson, Dunn & Crutcher. She is Co-Chair of the International Arbitration Practice Group and a member of the firm’s Transnational Litigation Practice Group. She has a wide range of experience in all key aspects of international arbitration with particular expertise in shareholder, telecommunications, SPA, energy, international trade and insurance disputes. She repres...

Al Gourley is a Partner at the firm’s London office. He is a globally-recognised resource lawyer, having led many UK and Canadian initial public offerings, secondary and alternative finance transactions, as well as mergers and acquisitions, in the resource sector, particularly cross-border transactions involving Europe, Africa, Australia and Canada. Al is also the Chairman of the World Initiative of Mining Lawyers based in Europe. Al is known for his knowledge of “pure” mini...

David Birchall advises clients on the full range of energy transactions in the mid- and downstream fields, including types of commodity trading matters, conventional, renewables and clean-tech projects, energy and infrastructure projects, regulation and waste, including waste-to-energy schemes. Having practised as an energy corporate, regulatory and projects lawyer since 1993, he also worked from the start of the renewables and physical commodities trading legal market, in the UK, throughout ...