Investments: Marsh Risk Adds $2.7bn for Data Centre Builds

Marsh Risk has expanded its Nimbus insurance facility to support the global boom in data centre construction. Now offering up to US$2.7bn in project cover, Nimbus provides a dedicated insurance solution for large-scale builds in the UK, US, Canada, Europe, Australia and New Zealand.

As a business of Marsh and the world’s leading insurance broker and risk advisor, Marsh Risk launched Nimbus in June 2025 to meet rising demand for purpose-built cover in digital infrastructure. 

The facility remains the first of its kind for large data centre projects and is already in use across builds in the UK, US and the Netherlands.

Purpose-built cover for digital builds

Nimbus supports clients through comprehensive risk protection, including business interruption and delay in start-up. 

These coverages are critical for data centre developers and operators, who face unique challenges during construction, from energy integration to time-sensitive supply chains.

The facility uses A-rated insurers drawn from the Lloyd’s market and other company providers, giving access to strong London market capacity. 

Its structure enables developers and capital providers to secure high-limit cover tailored to complex builds that power AI, cloud and enterprise infrastructure.

Marsh Risk also provides strategic support through its Global Digital Infrastructure team. Drawing on experience across cybersecurity, power and construction, the team advises on protection of capital and asset resilience throughout the data centre lifecycle.

Industry 4.0 drives infrastructure demand

Mike Mathews, Global Digital Infrastructure Leader at Marsh, says: “Demand for more powerful and efficient data centres is accelerating technological innovation, particularly around AI and machine learning, which will revolutionise the way we live and work and reshape economic landscapes over the next decade. 

“Marsh is helping clients in this sector work with communities to develop business strategies that will enable them to grow sustainably.”

The growth of digital infrastructure is central to Industry 4.0, the industrial shift driven by automation, data and smart technologies. 

As governments and businesses scale their digital operations, demand for resilient, energy-intensive data centres increases.

In this environment, large-scale construction projects carry new risks linked to environmental impact, energy access and operational uptime. 

Nimbus addresses these exposures through a combined facility that supports both developers and investors from project start through delivery.

Building resilience into the digital core

Mike adds: “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 centre developers, operators and owners to strengthen their delivery and resilience as we embrace the age of Industry 4.0.”

That support includes a coordinated approach to risk, spanning construction cover and broader asset protection. 

Marsh Risk positions Nimbus not only as an insurance solution but as part of a wider service to guide digital infrastructure clients as they scale.

By expanding Nimbus to US$2.7bn, Marsh Risk increases insurer capacity for clients building complex digital infrastructure. 

As data centre construction ramps up to meet growing AI and cloud demand, facilities like Nimbus help secure capital and reduce exposure across the project lifecycle.