McDonnell Ellis LLP

McDonnell Ellis LLP is a specialist financial services law firm based in London, providing legal and regulatory advice exclusively to the financial services sector. The firm works with a diverse range of clients, including major banks, asset managers, fintech companies, payments and crypto firms, as well as investment firms, insurers, brokers, and pension providers. Every assignment is handled by a senior specialist lawyer, enabling the firm to deliver excellence, efficiency, and highly responsive service.

Established in May 2020 by former partners from Addleshaw Goddard LLP, McDonnell Ellis LLP operates with a team of three partners, all of whom are highly experienced in financial services law and regulation. The firm is recognised by Legal 500 and Chambers for its depth of expertise and commitment to practical, client-focused solutions. McDonnell Ellis offers a transparent approach to fees, providing firm estimates before commencing work, and is praised for combining City law firm quality with the right price point.

The firm stands apart as the UK’s only specialist financial services regulatory law firm, frequently collaborating with other law practices lacking specialist regulatory capability. It maintains a global network of financial service lawyers, enabling cross-jurisdictional expertise tailored to each client’s needs.

McDonnell Ellis LLP is headquartered at 86-90 Paul Street, London, EC2A 4NE, and is fully registered with the Solicitors Regulation Authority