Looking at the empirical data, English law and England as a forum are currently businesses’ prevailing choice for dispute resolution in international commercial transactions in Europe. This article analyses the factors determining businesses’ choice of contract law and forum in and the underlying mechanisms for businesses’ choices. These findings will be used to analyse what possible effects and consequences Brexit may have for the London commercial courts and the choice of English contract law. Will there be a switch of focus in approaching European commercial contracts and dispute resolution? Or will Brexit impact little on London’s prevailing position in the market for dispute resolution and the choice of English law in international commercial contracts?