Arch Insurance International (Arch) today announced the promotion of Sophie Mansouri to UK Professional Indemnity (PI) Underwriting Manager, effective immediately. This promotion follows the integration of Arch’s London Market Small and Medium-sized Enterprise (SME) and UK Regional PI operations into a single, unified team.

In this newly created role, Mansouri is responsible for overseeing the eight-strong underwriting team’s UK PI portfolio, spanning coverage for both traditional and non-traditional professions including technical and scientific services. Based in London, she reports to David Longley, Head of PI.

Mansouri brings over 11 years of commercial lines experience to the role and joined Arch in 2023 from Hiscox, where she was UK Large Renewals Team Manager.

By combining both regional and London Market specialist expertise, the unified UK PI team provides brokers with seamless access to a broader range of insurance solutions and underwriting expertise for more complex risks. The new structure ensures a cohesive underwriting approach across the UK and enhanced service for brokers and their clients.

The UK PI team forms part of Arch’s wider PI division comprising the London Market Large Account PI team, led by Austen Barnes, Underwriting Manager and the newly created PI Delegated Authority segment, led by Paul Sharpe, Underwriting Manager.

Commenting on the announcement, Longley said: “Sophie will be integral to driving growth and strengthening our market standing within UK PI, as our newly combined team continue to deliver comprehensive solutions for our brokers and mutual clients. By creating a more aligned structure, we’re able to provide greater value to our brokers, offering them a broader risk appetite and improved service capabilities.”

About Arch Insurance International

Arch Insurance International is part of Arch Capital Group Ltd. and includes Arch Insurance UK and the P&C insurance operations of Arch Insurance (EU) dac, as well as Arch’s insurance operations in Europe, Bermuda and Australia.

About Arch Capital Group Ltd.

Arch Capital Group Ltd. (Nasdaq: ACGL) is a publicly listed Bermuda exempted company with approximately $24.3 billion in capital at March 31, 2025. Arch, which is part of the S&P 500 Index, provides insurance, reinsurance and mortgage insurance on a worldwide basis through its wholly owned subsidiaries.

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