Marsh is to issue a new business model in the UK next month in the hope of replacing around $200m (£103m) of revenue lost in the fallout from the US price-fixing scandal, reports said.
Globally Marsh & McLennan Companies has lost $840m by abandoning contingent commission agreements - the practice at the centre of the New York attorney general's investigation into US insurers.
Reports said about a quarter of the $840m was generated in the UK.
A new business plan designed to recoup some of the losses will be launched in January. Reports said among the changes to be made at Marsh brokers would be charges for administration tasks the company performed, such as computerising records.
