Matthew Gamman

Spear’s Review

Matthew Gamman is a managing director at Cone Marshall. Based in London, he oversees operations for its UK trusts provider, advising internationally minded UHNW clients and wealthy families with ‘bespoke and complex’ tax planning requirements.

‘Our expertise is in advising on, establishing and managing structures to hold international property for our clients, to protect their assets and provide for a family’s stability, governance and succession,’ the firm says.

As part of his role, Gamman regularly travels to the firm’s Geneva office, assisting clients with ‘sophisticated structures from across the globe’. Separately, he serves as secretary for the International Tax Planning Association, an association of bankers, trust officers, financial professionals, accountants and lawyers who work with clients with cross-border tax interests.

Adviser Profile

Matthew Gamman is the London-based managing director of the Cone Marshall Group, an international law and fiduciary services firm in 17 jurisdictions with over 100 professionals worldwide.

From his Mayfair base, Gamman works alongside internationally minded UHNW families and their advisers to shape and safeguard multi-billion-dollar fortunes and cross-border wealth.

Bringing together experience across the UK, Europe and the Asia-Pacific region, Gamman has built a reputation as a trusted adviser for families navigating the challenges of global wealth. His ability to translate complex structuring requirements into clear, workable solutions has made him a sought-after name among private banks, family offices and leading international law firms.

Gamman’s influence in the field is further reflected in his role as board secretary of the International Tax Planning Association (ITPA), a global forum for professionals engaged in cross-border tax and fiduciary matters.

With a career spanning New Zealand, Switzerland and now the UK, Gamman began his professional journey in New Zealand for an Autonomous Crown Entity and held governance roles in non-profit organisations. He is a New Zealand-qualified legal professional and registered member of the New Zealand Institute of Legal Executives (NZILE).

By combining technical precision with a deep understanding of family dynamics and long-term objectives, Matthew delivers strategies that stand the test of time and help families preserve their legacies for generations. As a leading voice in Cone Marshall’s international platform, Matthew travels widely to support clients with sophisticated cross-border arrangements, often navigating the complexities of multiple jurisdictions and regulatory environments.