Blenheim Underwriting has announced its intention to develop its managing general agent casualty account and has appointed Alex Stratton-Thomsett as casualty underwriter to advance the strategy. He joins from MS Amlin where he was lead underwriter, US casualty. Stratton-Thomsett will begin his new role on 8th January 2026 and join Blenheim’s existing senior casualty underwriter David Barber.

Barber said: “We’re thrilled to welcome Alex to the team, marking a significant step forward in the expansion of our casualty MGA book and making it one of the stronger units in this specialist marketplace.

“It’s another endorsement of our independent structure, which continues to attract top-tier underwriting talent, that can sometimes get lost in larger organisations.”

Blenheim Underwriting is a Lloyd’s managing agent and is responsible for the management of Syndicate 5886.