Bishop Street Underwriters, a RedBird Capital Partners portfolio company, has received a $125 million strategic structured capital investment from White Mountains Insurance Group, Ltd.
Most recently, Bishop Street disclosed in its 2025 results announcement that its total written premiums exceeded $650 million while portfolio losses were below 50%.
Earlier this week, Bishop Street expanded its partnership with AI-powered underwriting solutions specialist Kalepa to support its London-based managing general agents (MGAs), Avid Insurance Services and Landmark Underwriting.
In the fourth quarter of 2025, White Mountains reported gross written premiums (GWP) of $268 million for property and casualty reinsurance unit Ark/WM Outrigger, with a combined ratio of 77%.
Chad Levine, Chief Executive Officer (CEO) of Bishop Street Underwriters, commented: “We are pleased to welcome White Mountains as a strategic growth partner during a period of unprecedented momentum. Bishop Street’s 2025 Performance – Over $650 Million in Gross Written Written and Industry-Leading Organic Growth While Maintaining Less than 50% “
Chad Weber, president of Bishop Street Underwriters, added: “White Mountains has a long history of successfully scaling MGAs, deep knowledge of the MGA landscape and understanding of the complexities of our industry. We are excited to welcome their expertise to our board of directors and leverage their capabilities and connections to unlock new opportunities for the platform and our operating partners.”
Liam Caffrey, CEO of White Mountains, said: “Bishop Street is rapidly emerging as an industry-leading MGA platform. This is a talented management team with a proven track record of scaling insurance distribution operations. We believe Bishop Street is well-positioned to capitalize on long-term growth tailwinds.”
Chris Delehanty, Head of Mergers and Acquisitions at White Mountains, added: “We are excited to partner with RedBird and the team we have known for many years. We look forward to the opportunity to work together to accelerate the company’s growth and performance.”
Mike Zabik, partner at RedBird Capital Partners, concluded: “White Mountains is a long-term investor with deep insurance expertise, an outstanding track record and relevant resources, making it an ideal partner for Bishop Street and RedBird.
“With an established global footprint and significant growth and partnership opportunities, this investment and collaboration will enable Bishop Street to achieve its growth objectives for 2026 and beyond.”
