Bishop Street Underwriters has brought its three UK specialty businesses together under a single management structure, creating Bishop Street Underwriters UK with Stephen Gibson as group chief executive.
BSU UK unifies Avid Insurance, Landmark Underwriting and Incorporated Insurance Group under common governance, with each business retaining its existing brand, regulated entity, underwriting team and broker relationships. The restructuring follows Bishop Street's two London market acquisitions over the past 18 months and gives brokers a single group contact point while preserving the specialist underwriting identities they have existing relationships with.
Gibson, previously chief executive of Avid, is joined by John Inwood as group chief underwriting officer, overseeing underwriting strategy across Avid and Landmark - an appointment first announced in May subject to regulatory approval. Jon Terry joins as group chief financial officer, and Sitki Gelmen, Landmark's co-founder, becomes deputy chair.
The three businesses bring a broad combined appetite. Landmark, acquired first, carries a gross written premium book spanning professional indemnity, property, directors and officers, and general liability, with plans already in place to expand into marine and political risk. Avid, acquired on 3 October 2025, provides insurance for construction, social housing and leasehold risks alongside equine, motor sport, gadget, student contents and travel lines. Avid had previously taken a majority stake in IIGL, which focuses on construction, property, airside, and health and safety risk.
Under the new structure, the three businesses will share technology, operations and capacity management resources while retaining their own underwriting teams and distribution channels. Bishop Street said clients will see no change to day-to-day service.
Bishop Street completed a $125 million strategic structured capital investment from White Mountains Insurance Group in February 2026, and the firm reported 2025 gross written premium surpassing $650 million across its platform with a sub-50% portfolio loss ratio.
Gibson said the next stage was to bring the three businesses together within a structure that would allow them to operate more effectively as a single group, while preserving what makes each business distinct. "The important point is that we are not changing what makes those businesses unique and successful," he said. "Their brands, underwriting teams, specialist expertise, and relationships with brokers and capacity partners remain fundamental to what we are building."
He added that the unified structure provides a stronger platform for growth and further expansion into the UK and EU.
Bishop Street has also broadened its use of AI-driven underwriting technology across its London-based MGAs, extending its partnership with underwriting platform Kalepa to support both Avid and Landmark, building on an initial 2024 deployment.
