Atrium receives ‘in principle’ approval from Lloyd’s for their new Syndicate 2026.

(12.11.25) Atrium, the leading specialty insurance group at Lloyd’s, has announced it has been granted “in principle” approval from Lloyd’s for their new Syndicate 2026. Subject to the completion of all final approvals, the new Syndicate will commence underwriting from 1/1/26 with an initial target GWP of $150m for the 2026 year of account.  The Syndicate will initially focus on Delegated Property Catastrophe and Weather and Climate Risk.

The new Syndicate represents an important milestone in Atrium’s history and another important step in the delivery of its strategic transformation agenda.  Capital support for the new syndicate comes from a mix of trade, institutional and traditional capital. Capital Advisory support was provided by Aon and Evercore.

Atrium currently manages Syndicate 609, which writes insurance and reinsurance business across property, casualty, and specialty business groups.

Syndicate 2026 will be led by Rachel Grunert as Active Underwriter. Rachel has 33 years of experience and brings extensive underwriting expertise to the role from her tenure as an Accident & Health Underwriter.  In addition to her new responsibilities, Rachel will continue in her role as Head of Culture.

John Fowle, Chief Executive Officer of Atrium, comments.

“Today marks an important step in the delivery of our strategic transformation agenda as we expand our product offering and relevance to brokers and clients.

The launch of Syndicate 2026 enables us to maintain our leading reputation at Lloyd’s, which has, and always will be, a core part of Atrium’s DNA.

Underpinned by robust risk insights, driven by industry-leading talent, our new Syndicate complements Syndicate 609 and allows us to match new capital partners to risk in line with differing appetites. I am confident Syndicate 2026 will bring lasting value to our brokers and clients.”

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