Manduca has held several directorships, including as a non-executive director of
Wm Morrison Supermarkets plc, the UK supermarket chain, from 2005 to 2011. During that time, he was the senior independent director, a member of the nomination committee and chairman of the remuneration committee, and prior to that he set up the audit committee. He was a director and chairman of the risk and reinsurance company
Aon UK Limited from 2006 to 2012. He chaired Bridgewell Group plc from 2006 to 2008, and was a director and chairman of
JPMorgan European Smaller Companies Investment Trust from 2005 to 2012. Manduca was chairman of Prudential plc from 2012 to 2020. He joined the board of Prudential plc as the senior independent director in 2010, serving as a member of Prudential’s audit and remuneration committees from 2010 to 2012 and as a member of the nomination committee from 2011 until he was made chairman of the board and chairman of the nomination committee in 2012. In 2015 he became chairman of the Templeton Emerging Markets Investment Trust. In July 2017, Manduca became chairman of
RateSetter, an online
peer to peer lending company. ==Wider industry roles==