Aon has announced a raft of management appointments to “guide clients through changing times”.

Eric Andersen is the new CEO of reinsurance business Aon Benfield, while Mike O’Connor takes over as CEO of risk management business Aon Risk Solutions (ARS).

Mr Andersen joined Aon in 1994 and most recently served as CEO of ARS Americas.

Mr O’Connor joined Aon in 2008 and was previously COO for its risk business, comprising both Aon Benfield and ARS.

Former Aon Benfield analytics and investment banking chairman Bryon Ehrhart will become CEO of Aon Benfield Americas.

Mike Bungert will take the role of Chairman, Aon Benfield, and Dominic Christian will become Executive Chairman of Aon Benfield International.

Michael O’Halleran will continue as Executive Chairman of Aon Benfield.

Mr Christian will also become CEO of Aon UK and Rob Brown, CEO of ARS Europe, the Middle East and Africa, will join Aon’s executive committee pending UK board approval.

Aon Group President and Risk Solutions Chairman and CEO Steve McGill says the changes “represent a natural evolution as well as our understanding that we must continue to stay ahead of the curve for our clients”.