Fiona Gilvey stopped work last month
Aon Global UK executive director Fiona Gilvey has gone on leave, Insurance Times understands.
She stopped work last month but no decision has been made on her future.
An Aon spokesman said the company would not comment on individual matters.
Aon Global has undergone considerable management changes since the new year. Karl Hennessy became managing director, replacing Ken MacDonald, who now works in Aon’s Europe, Middle East and Africa division.
As part of a wider restructuring, the company has not replaced four client relationship managers who worked on large company accounts.
Aon bought Benfield for £844m last November. A combination of takeover costs, restructuring and discontinued operations hit net income, which fell 95% to $10m (£7.1m) in the fourth quarter.