Jane Martinson is a journalist and academic who first reported on the Barclay empire in 2004. She worked at the Financial Times before spending 18 years at the Guardian, latterly as a senior member of the editorial team. In 2018 she became the Professor of Financial Journalism at City, University of London and started to investigate the Barclay brothers soon after. Jane remains a regular columnist for the Guardian and frequently appears on broadcast media including BBC News, ITV's Good Morning, Sky News, and BBC Radio 4.