London is losing out as a growing number of companies choose to ditch the City to list in the US. CRH, Arm and WANdisco have all announced plans to depart this month, joining gambling firm Flutter in February.

From the UK's regulatory hurdles to its investors' aversion to equities and greater dynamism in US markets, City leaders point to a host of challenges that indicate the British capital's struggle to hold onto its position as a premium international listing centre.