The International Underwriting Association has named Theo Butt (pictured), who is the chief executive officer, UK for Convex Insurance, as its new chair. On 1st January 2026, he will take over the post from Claire McDonald, chief executive officer of Scor Business Solutions, who steps down after completing her two-year term.
 
Chris Jones, chief executive of the IUA, said: “I am delighted to congratulate Theo Butt on his appointment as chair of the IUA. He has been a respected and influential member of the IUA board for the past two years and will be an effective leader for the London company market at what is a critical time with challenging market conditions.”

He added: “I would also like to thank Claire McDonald for her support of the IUA’s work and driving delivery of our corporate strategy.”

Butt said: “I have enjoyed supporting Claire in her role as chair and want to thank her for all her hard work, and in managing a very smooth transition. It is both a challenging and exciting time in the London Market and I am really looking forward to working with the team to continue to promote the IUA agenda across the many initiatives and projects it is leading.”