While the precise details of the terms of a Brexit will be worked out in the coming months and years, businesses likely to be affected by a Brexit should start to identify potential areas of risk and impact and plan staff and customer communications… Overseas businesses often establish operations in the UK as a stepping stone to trading with other EU countries. Government analysis in 2013 found that half of all European headquarters of non-EU firms are in the UK. The vote for a Brexit may affect decisions to establish in the UK and could lead to a relocation of the headquarters of some non-EU firms to other member states.