Guy Carpenter is merging its UK Property and Casualty and London Europe operations into a single division from 1 January 2027. The reinsurance broking arm of Marsh McLennan announced the change.
Leon Janeke will lead the combined team. He reports jointly to Paul Moody, UK chief executive, and Julian Enoizi, Europe chief executive. Janeke previously ran the London Europe division for three years.
Dean Jenner has been appointed chairman of the combined unit. Jenner brings 41 years of industry experience and six years at Guy Carpenter. He will concentrate on talent development and growth in new risk areas. Jenner reports to Moody.
Moody said the move was designed to sharpen Guy Carpenter's position across property, specialty and emerging risk areas.
"By combining these teams under Leon's leadership and Dean's strategic guidance, we're creating something more powerful: a UK Property and Casualty and London Europe team that brings together deep market expertise, integrated client capabilities, and a clear growth agenda," he said.
Enoizi described London as a hub for the firm's European operations. He said the merger was intended to strengthen Guy Carpenter's standing with European-based global clients.
The restructure arrives as Guy Carpenter faces sustained competitive pressure in the London reinsurance broking market.
Willis Re has drawn roughly 80 professionals from Guy Carpenter since mid-2025. The departures covered property retrocession, specialty lines, analytics, and life reinsurance across London, Bermuda and Asia.
A High Court judgment in February 2026 found that two former Guy Carpenter executives improperly assisted Willis Re's hiring push before resigning in mid-2025. The judge cited internal pay dissatisfaction at Guy Carpenter as a driver of departures. Financial damages are to be determined in a later phase of proceedings.
Jenner's explicit mandate around talent development sits directly in that context. The consolidation of two formerly separate teams under a single leader is one response to a period of attrition that reached the High Court.
The structural forces behind the merger extend beyond the talent dispute.
A Guy Carpenter research report from May 2026 put alternative capital at close to 20% of the global reinsurance pool, estimated at $660 billion. Public catastrophe bond issuance reached roughly $25 billion in 2025, with outstanding 144A cat bonds at approximately $58 billion.
The report found that reinsurers are taking on expanded roles as originators and structurers of risk. A unified UK and European broking structure gives Guy Carpenter a single platform to serve clients as that market shift continues.
