Marsh, an insurance broker and risk adviser, has appointed David Bidmead, currently leader of its US West Zone as CEO of Marsh US.

In this in role, Bidmead will guide Marsh’s US retail brokerage operations and report to Joe McSweeny, president of Marsh US/Canada, who will continue to lead Marsh’s other divisional business segments.

Marsh is realigning its zonal structure in the US to streamline operations – going from four zones to three.

The offices of its South Zone will be integrated into its East and Central Zones.

Kris Davis, currently Southwest Partnership Leader in the West Zone, will succeed Bidmead as the West Zone Leader, Greg Stanbury will lead the newly expanded Central Zone and Bill Lyon the newly expanded East Zone.

Justin Walsleben, currently South Zone Leader, will join the US management team leading an internal initiative to improve operational efficiency and embed best practices.

The appointments and regional changes take effect in the second quarter of this year.

McSweeny said over the last few years the company have made great strides in solidifying and building the business. Two key components of this process are optimization and simplification.

"These changes to our operational structure are designed to strengthen and streamline our company," McSweeny added.