Marsh Risk, a business of Marsh, has expanded capacity for Nimbus, its large-scale data center construction insurance facility, lifting available limits to $2.7 bn.
The expanded limit includes delay in start-up and business interruption cover for major data center developments.
Nimbus now supports projects across the UK, US, Canada, Europe, Australia, and New Zealand. The facility was launched in June 2025 as the first insurance structure designed specifically for large-scale data center construction.
According to Beinsure, demand for bespoke insurance capacity has accelerated alongside investment in hyperscale and AI-driven infrastructure.
The facility is already in use on multiple projects in the US, UK, and the Netherlands.
Nimbus provides access to London market capacity through a panel of A-rated insurers, including Lloyd’s syndicates and company markets, alongside other specialist facilities supporting complex construction risk.
Beyond insurance capacity, Marsh’s Global Digital Infrastructure team delivers advisory expertise across construction risk, cybersecurity, energy supply, and power resilience.
That integrated approach reflects the risk profile of modern data centers, where physical build, power availability, and operational continuity are tightly linked.
Mike Mathews, global digital infrastructure leader at Marsh, said demand for higher-capacity, more efficient data centers is accelerating innovation in AI and machine learning, with broad economic consequences over the next decade.
He said Marsh works with clients and local communities to develop growth strategies that balance expansion with long-term sustainability.
Demand for more powerful and efficient data centers is accelerating technological innovation, particularly around AI and machine learning, which will revolutionize the way we live and work and reshape economic landscapes over the next decade.
Mike Mathews, Global Digital Infrastructure Leader, Marsh
“By harnessing our global resources in critical interconnected areas such as capital management, construction, off-site power generation, environmental risk, and operational resilience, Marsh is enabling data center developers, operators, and owners to strengthen their delivery and resilience as we embrace the age of Industry 4.0,” Mike Mathews said.
Mathews added that Marsh’s capability across capital management, construction risk, off-site power generation, environmental exposure, and operational resilience helps developers, operators, and owners strengthen project delivery and long-term performance as digital infrastructure scales.
Marsh Risk refers to the global risk and insurance broking business of Marsh, a leading insurance broker and risk advisor operating worldwide.
Marsh Risk operates as part of Marsh, which advises clients in more than 130 countries across risk, reinsurance, capital, and consulting.
It provides risk advisory, insurance placement, and consulting services for commercial and individual clients, helping organizations understand, quantify, and manage a wide spectrum of risks, from property and casualty to cyber and specialty risks.
