People Moves: IUA Names Convex’s Butt as Chair as McDonald’s 2-Year Term Ends

November 10, 2025

International Underwriting Association Names Convex’s Butt as Chair

Theo Butt, chief Executive Officer, UK for Convex Insurance, has been elected as the new chair of the International Underwriting Association (IUA). He will take over from Claire McDonald, chief executive officer of SCOR Business Solutions, who is stepping down at the end of a fixed two-year term in the role, and having served on the IUA board since 2021.

Theo Butt

Butt has been a member of the IUA board since April 2023 and is currently a deputy chair of the association. His election took place at the October meeting of the IUA board and will formally take effect on January 1, 2026.

“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 for the with challenging market conditions,” commented Chris Jones, chief executive of the IUA.

“I look forward to working with him as we strive towards further digital transformation and operational efficiency and shape future strategies for both the IUA and wider London market,” Jones said.

Claire McDonald

He went on to thank McDonald for her support of the IUA’s work and for driving delivery of its corporate strategy.

“As chair of the association she has played a vital role, advocating with authority on technical underwriting and claims issues for specialty lines and monitoring the development of new digital services for our sector,” Jones continued. “Claire has also given huge support to myself as incoming chief executive of the IUA and helped implement our new senior leadership team structure.”

(For International People Moves)

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