Amid the constant sound of triumphal whooping, high-fives and red-blooded males bellowing ‘You da man!’ every five minutes, astute market-watchers will have noticed that another US firm is quietly preparing its London launch.

Heller Ehrman is the most recent Stateside outfit to target the City and has spent the last few weeks hoovering up partners like a City lawyer in the 1980s would once have hoovered up, er, privatisations.