The merger deal between Aon and Willis Towers Watson (WTW) is set to undergo an in-depth probe by European Union (EU) regulators due to its complexity, sources have told Reuters.
The $30bn deal faces a review once the European Commission’s preliminary review of the merger concludes on 21 December.
This process would last five months and would look to address any potential competition concerns that may arise out of such a large combination.
Aon and WTW declined to comments on these reports, but it is possible that an EU investigation could cause a delay to the merger, which is currently expected to complete within the first half of next year.