Tokio Marine HCC International (TMHCCI) has announced a major leadership transition, appointing Thibaud Hervy as Chief Executive Officer and Simon Button as Chief Underwriting Officer for its international operations. The appointments take effect immediately, pending regulatory approval, and form part of a broader strategic initiative by the global insurance group.
Hervy steps into the CEO role following the departure of Barry Cook, who assumes a new position as Deputy CEO of the parent company, Tokio Marine HCC (TMHCC). Cook’s two-decade tenure at TMHCCI transformed the business from a niche player into a $2.8 billion force in the London Market, earning a strong reputation for technical expertise and disciplined underwriting.
The promotion of Hervy is seen as a continuation of TMHCCI’s growth-oriented vision. Having joined the company in 1999 as an underwriter in HCC Global’s financial lines division, Hervy played a key role in expanding its European and global underwriting operations. He became Managing Director of HCC Global in 2010 and, over the past decade, served as Chief Underwriting Officer for Specialty Lines. In that role, he was instrumental in driving the company’s long-term strategy and international profitability.
Meanwhile, Simon Button assumes the role of International CUO after 25 years with the company. Since joining TMHCCI in 2000, Button has held senior underwriting positions across property, marine, and energy lines, most recently serving as CUO – London Market. In his new role, he will lead the global underwriting strategy as TMHCCI seeks to expand its product offering and address emerging risks.
These leadership changes reflect TMHCCI’s commitment to strengthening its specialty lines presence across international markets. Headquartered in Houston, Texas, TMHCC is part of the Tokio Marine Group, a global insurer founded in 1879 and valued at $70 billion as of December 2024. Operating across the US, UK, continental Europe, and Mexico, TMHCC maintains robust financial strength, with insurance subsidiaries rated ‘A++’ by AM Best, ‘A+’ by S&P Global Ratings, and ‘AA-’ by Fitch.
