Marsh CEO Brian Storms has quit as head of the international broking firm after just two years at the helm.

President Michael Cherkasky said in a statement Mr Storms had made "important contributions" in Marsh's recovery, but it was time for a "different set of leadership and operational skills".

"Our long-term strategy is sound and a solid foundation has been built," Mr Cherkasky said.

"I remain confident about the future of Marsh & Marsh McLennan Company. Insurance broking is at the heart of Marsh and always will be."

Mr Storms took over Marsh in 2005 at the height of the contingency commissions scandals. The company was severely reprimanded for its part, and paid fines of $US850 million ($1 billion).

The scandal cost Marsh more than money. The damage to its brand, once the most revered in the industry, has been difficult to repair with rivals Aon and Willis swooping on disgruntled staff and clients.

Marsh's tarnished image has also been unattractive for business. In the second quarter of 2007, Marsh's revenue was $1.1 billion, up just 2% on last year. In contrast, Aon posted a 24% increase in earnings over the same period, while Willis was up 8%.

Mr Cherkasky will serve as CEO until a replacement is found.