

Tokio Marine HCC International, the international subsidiary of global specialty insurance group Tokio Marine HCC, has announced the promotion of Thibaud Hervy to chief executive officer (CEO) and Simon Button to chief underwriting officer (CUO).
These appointments are effective immediately, subject to regulatory approval.
Hervy steps into the CEO role after serving as CUO – Specialty Lines. He joined the business in 1999 as an underwriter within HCC Global’s Financial Lines team and has held several senior roles, including managing director of HCC Global and CUO of TMHCCI since 2014.
His leadership has been instrumental in shaping the company’s underwriting and distribution strategies globally.
Simon Button, who becomes CUO of TMHCCI, previously served as CUO – London Market. Since joining the firm in 2000, Button has held a range of leadership positions across the Property, Marine and Energy divisions. In his new role, he will be central to evolving TMHCCI’s underwriting strategy as the business grows its product portfolio.
Barry Cook, TMHCCI’s long-standing CEO, recently became deputy CEO of TMHCC. With more than two decades at the helm of TMHCCI, Cook leaves a legacy of growth, having expanded the company’s London Market presence to a $2.8bn operation. He will now support the wider group from his new role at TMHCC.
“Barry’s impact on our international business cannot be overstated. When he took the helm in 2005, TMHCCI was a small player in London. Today, Barry leaves it a $2.8 billion market leader with an excellent track record of success over decades. He has been instrumental in building a business which continues to set new standards and achieve exceptional results,” TMHCC CEO Susan Rivera said. “I am delighted to be working even more closely with Barry in his new role, and in Thibaud, we have the ideal candidate to carry on his legacy. As we embark on an exciting new chapter, Thibaud will spearhead our international growth and the expansion of our product suite.”
Rivera added, “I am also delighted to announce Simon’s appointment as CUO of our International business. The risk landscape and the needs of our insureds are evolving. Key challenges such as the global transition to more sustainable practices also present significant business opportunities. Thibaud and Simon’s expertise will be core to the new offerings we are developing and to achieving new heights of excellence in service and innovation for our clients.”
Cook commented, “I am proud to pass the baton of leadership of TMHCCI to Thibaud and Simon. I have had the pleasure of working with them for decades, and their vision and expertise continue to impress. I am certain that TMHCCI will continue to go from strength to strength under their management.”
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