Marsh expands data centre insurance facility capacity to £2bn

Marsh Risk has added significant capacity to its data centre construction insurance facility Nimbus.

The facility will now offer limits up to $2.7 bn (£1.98bn) – inclusive of delay in startup and business interruption coverage – for major data centre construction projects in the UK, US, Canada, Europe, Australia and New Zealand.

Launched in June 2025 as the first insurance facility of its kind for large-scale data centre construction projects, Nimbus supports digital infrastructure development while mitigating specific risk exposures and providing greater financial protection for Marsh Risk’s clients and their capital providers.

It is is currently being deployed on numerous projects in the US, UK and the Netherlands.

Growing demand 

Commenting on the latest enhancement, Mike Mathews, global digital infrastructure leader at Marsh, said: “Demand for more powerful and efficient data centre 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. 

”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.”