Aon has increased the size of its Data Centre Lifecycle Insurance Programme by a further $1bn (£736.98m), bringing the total capacity of the scheme to $3.5bn.
The change also widens the scope of the programme so that it covers existing data centres after their first year of operation.
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In January, Aon expanded the programme by $1bn, taking total available capacity at that stage to $2.5bn.
The revision allows insurance protection to continue into longer-term use, covering data centre assets after the construction and commissioning stages.
The programme was introduced in June 2025 as a multi-line insurance facility aimed at risks linked to construction, operations, cyber incidents and finance for data centre owners, developers and investors.
Aon said the latest increase comes as spending rises worldwide on cloud computing, AI and hyperscale infrastructure, while resilience is becoming more important as data centres grow in size, cost and importance to the wider economy.
Under the revised structure, the programme offers up to $3.5bn for construction all risks, delay in start-up and operational business interruption/property damage.
The programme provides as much as $400m in cyber and technology errors and omissions insurance, with protection that also extends to non-damage cyber delay in start-up and ransomware events.
It offers third-party liability insurance of up to $200m worldwide, including $100m of excess cover in the US. Cover for project cargo and transportation is set at up to $500m.
Aon said risk engineering support and cyber impact modelling can be accessed through its Global Risk Consulting unit.
Aon Risk Capital CEO Joe Peiser said: “Data centres have become foundational to innovation, connectivity and economic growth.
“As these assets grow in size, complexity and importance, resilience must be built from the start. By expanding our Data Centre Lifecycle Insurance Programme and extending coverage to operating data centres, Aon is helping clients anticipate risk, protect critical assets and invest in digital infrastructure with greater confidence.”
