Aon, the second largest global insurance broking giant has confirmed that a takeover of its competitor and third largest insurance broker Willis Towers Watson (WTW) is under consideration.

The acquisition of WTW could make Aon the largest broker in the world over Marsh & McLennan Cos, which is also in the process of taking over JLT, the fourth largest international broker.  

Aon has officially announced its intentions as per Irish regulatory requirements, stating that any deal was “in the early stages” and would be made via an all-share business combination.


Aon said that the deal was still being evaluated and there “can be no certainty that any transaction will take place nor as to the form or terms on which any transaction might be pursued”.


Aon concluded its announcement with a caveat that further  announcement will be made in due course, as appropriate, and said the information had been prepared in accordance with English and Irish law and Rule 2.4 of the Irish Takeover Rules.


Aon plc is a leading global provider of risk management, insurance brokerage and reinsurance brokerage, and human resources solutions and outsourcing services.


Through its more than 72,000 colleagues worldwide, Aon unites to empower results for clients in over 120 countries via innovative risk and people solutions.