Trium Cyber UK Expands Line Size to $20 Million Effective January 1, 2026
15th December 2025London, UK – December 10, 2025 – Trium Cyber UK is pleased to announce the achievement of a significant milestone: effective January 1, 2026, the company will increase its maximum line size to $20 million, which will be available on both a primary and excess basis.
The Trium Cyber UK team is excited to offer this larger block of capacity, providing clients with greater choice and a stronger value proposition at a critical time, as the cyber threat landscape continues to deteriorate, insurer consolidation potentially challenges existing cyber capacity, and reinsurer scepticism around market sustainability begins to mount.
The increased line size was achieved via expansion of the Trium Cyber Consortium, a testament to Trium’s innovation and leadership in the cyber insurance space. Attracting third-party capital support from other Lloyd’s Syndicates is tacit acknowledgement of Trium’s ability to balance sustainable underwriting with meaningful growth.
"We are thrilled to reach this milestone and strengthen our ability to support clients in an evolving risk environment," said Mauro Signorelli, Managing Director Trium Cyber UK. "This expansion reflects our commitment to delivering market-leading solutions and reinforces our role as a trusted partner in cyber insurance and risk management. With a single claim agreement party, clients can benefit from a faster claim resolution together with direct interaction with our claims team."
Earlier in the year Trium Cyber UK announced the appointment of Lyndsey Howden as Head of Cyber Claims, International. With nearly two decades of hands-on experience in managing Cyber, Technology E&O and Professional Liability claims in the London market – including roles at Munich Re, Brit, Tarian and more recently Corvus – Lyndsey is widely recognized as a thought leader amongst her peers, with a wealth of technical expertise and industry insight.
“Trium’s disciplined approach to underwriting aims to reduce volatility for both our clients and capital partners, supporting greater stability across product terms and conditions and driving consistent profitability. The increased line size, available exclusively through our UK platform, will further enhance Trium’s unique value proposition for clients, capital support, and broking partners as we enter our fourth year of operation” - Josh Ladeau, CEO Trium Cyber.
