Greg Trotman

Greg Trotman

Managing Director, Citrine International

Greg Trotman is managing director of Citrine International Tax, an independent firm of global tax practitioners with offices in London, Oxford and Paris who specialise in assisting corporate entities and individuals with their tax exposures in the UK and US.

Career Overview

Greg is an expert in US individual income taxation as well as being a registered member of the UK Association of Taxation Technicians. He has almost a decade’s experience working in the field of expatriate taxation for PricewaterhouseCoopers [PwC] in their Southampton, Paris, Geneva, Lausanne and London offices [1995-2002] before setting up his own business - then called Trotman Taxation - in 2002. In November 2020, Trotman Taxation was rebranded as Citrine International.

Between 2012 and 2020, Greg sat as CEO for another business he founded, Zoetic Software Solutions. The business is a software development company providing global data mobility solutions for the professional services sector, with some clients including global accounting firms.


Greg attended Winchester College from 1986 to 1991. He then went on to read Economics and Economic History at the University of Southampton, graduating with a BSc in the subject in 1994.

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