Skip to content

Kate Sumpter



Sumpter Kate
Kate Sumpter



Kate is a partner in our Financial Services Regulatory practice. She has over 17 years’ experience in the financial services sector and has extensive experience of dealing with complex regulatory-driven structural change projects for international banks.

She has also assisted a number of international banking institutions with designing and developing their legal entity structures. Kate is a core member of Allen & Overy’s Brexit team, working with clients to develop their Brexit plans. She recently led on the regulatory aspects of Allen & Overy’s mandate to advise HSBC on ring-fencing and operational continuity implementation.

Kate advises a number of banks and financial market infrastructure bodies (including payment systems) on regulatory matters and outsourcing arrangements. She regularly advises on all aspects of the bank recovery and resolution regime, including operational continuity aspects, and on the structuring of risk mitigation arrangements to ensure robustness insolvency and resolution. Kate has acted as a member of the Banking Liaison Panel, a working group established by HM Treasury to consider bank and investment failure, on behalf of ISDA.

Kate was recognised as “Best in Financial Regulation” at the Euromoney Europe Women in Business Law Awards 2019, is ranked as a “Leading Lawyer – Highly Regarded” in IFLR1000 and is listed as a Next Generation Partner by Legal500 UK 2021 for Financial Services Regulation.

Related articles

Aerial view of a road flowing through a forest

Publications: 30 March 2023

Financing the gap: eight thoughts on accelerating the Net Zero transition

We recently welcomed a stellar panel of guests to discuss how to drive more private investment in decarbonisation. Ambassador Patricia Espinosa, former executive secretary of the UN Framework…

Read more

Publications: 15 March 2023

What next after the collapse and stabilisation of Silicon Valley Bank?

Read more

Publications: 24 February 2023

2023 - the year of divergence?

Read more

Publications: 03 November 2022

Financing the gap: a blueprint for decarbonisation

Read more



One Bishops Square
E1 6AD

View office →



Admitted as solicitor, New South Wales, Australia, 2002

Admitted as solicitor, High Court of Australia, 2002

Admitted as solicitor, England and Wales, 2006


BCom LLB, University of Wollongong, 2001

Graduate Diploma, Advanced Insolvency Law & Practice, University of Southern Queensland, 2004