Aon, the US-listed insurance broker, has sealed a deal to acquire Willis Towers Watson in an all-share transaction worth almost $30bn — a year after merger talks between the two companies collapsed.
The tie-up, set to be completed during the first half of 2021, will create a global giant with a value of around $80bn. Aon and Willis are the second- and third-largest global insurance brokers by revenue, according to a 2017 ranking by trade publication Business Insurance.