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James Willmott


James' practice covers a wide range of corporate activities with a focus on mergers and acquisitions, IPOs and private equity transactions. He also has significant experience advising on joint ventures, reorganisations, start-ups and technical and regulatory matters (in particular company law and competition, insurance, banking and other financial services regulation).

His recent experience includes advising checkout.com on its Series B fundraising, Ports of Jersey and the Government of Jersey in connection with British regional airline Blue Islands, Marsh & McLennan Companies on the acquisition of Jardine Lloyd Thompson and New Look on its significant financial restructuring.

James' clients include LSE Main Market, NYSE, Nasdaq, AIM and TISE listed companies, global financial institutions including banks, insurance companies and brokers, investment managers and fintech businesses, natural resources companies and international retail groups. He also has a strong local M&A and corporate advisory practice.

James has featured in The Jersey & Guernsey Law Review 2017, having authored an article on Filing of Shareholder Agreements and external documents: Jersey Law Practice.

James is rated as a 'Leading Lawyer - Rising star' in IFLR1000 2020.


James began his career at Allen & Overy, where he worked in London, Singapore and Bratislava. Before joining Carey Olsen in 2010 he also worked at Jones Day in Singapore and Pinsent Masons in Birmingham. He was admitted as an English solicitor in 2004 and a Jersey advocate in 2013, and became a partner at Carey Olsen in 2016. James also has experience working as in-house counsel for a UK-based power project developer.

He is an alumnus of King's College, London, Nottingham Law School and the Institute of Law, Jersey.

James is an adjunct professor of the Institute of Law, Jersey in relation to the Company Law module of the Jersey Law Course, a course of structured tuition provided by the Institute of Law leading to the qualifying examinations for advocates and solicitors in Jersey. He is also a governor of Jersey College for Girls and Jersey College Prep.

Briefings and Articles

What our clients say

"James Willmott is a strong communicator and gives clear, pragmatic advice. He also has excellent technical knowledge that he can deploy quickly."

Legal 500

"Leads impeccably in terms of project management and negotiations."

Legal 500

“Totally dedicated to getting the best outcome for his client. Bright, hard-working and innovative - good at thinking his way through tricky problems.”


“Practical and quick to respond to queries.”


"Very responsive and commercial"

Legal 500 UK