Two decades ago, Norton Rose’s fortunes looked bleak. Today, thanks to a quick succession of mergers, it is a global powerhouse. But as the firm’s key players tell Georgina Stanley and Pui-Guan Man, the hard work has only just begun

When Norton Rose’s merger with US firm Fulbright & Jaworski goes live on 1 June, it will have completed its fifth tie-up in just three-and-a-half years.