Norton Rose Fulbright chief executive Peter Martyr has ushered the firm through a dramatic transformation during his 12 years at the top, taking it from an also-ran UK firm to an international powerhouse formed through a rapid series of global tie-ups.

As he prepares to take on another three-year term leading the firm, which takes effect in January, Martyr (pictured) seems as unflappable as ever. His long tenure, he says, has taught him to remain vigilant.