Aon CEO Flags Data Center Concentration Risk in AI Financing

The rapid expansion of artificial intelligence infrastructure is introducing insurance complexities that could affect project financing, according to Aon CEO Greg Case. He made the remarks during a Wednesday interview with CNBC, noting that the physical placement of computing assets creates specific financial hurdles for developers.

Case argued that concentrating billions of dollars in equipment and computing power into a limited number of sites generates concentration risk. This clustering makes it harder to secure adequate insurance coverage. He explained that when projects are built in close proximity, insurers face greater exposure to correlated losses. That difficulty in obtaining insurance can subsequently restrict access to debt markets for new developments.

The financial impact of downtime is substantial, with Case estimating that data centers measure business interruption in millions of dollars per minute. As technology firms accelerate spending on data centers and power generation, traditional insurers may struggle to absorb this level of exposure. Aon reported a record pipeline of data center projects in its third-quarter results, with organic revenue in its commercial risk business rising 7%.

To manage these risks, Aon has established specialized insurance facilities, including a $10 billion facility for data centers and a $2.5 billion facility for energy. The company works with developers on design and location strategies to limit business interruption and structure coverage that supports financing. Case described this process as engineering conversations focused on understanding risk before a policy is written.

Aon is also expanding its middle-market capabilities through a pending $17 billion acquisition of USI Insurance Services, expected to close in the fourth quarter. Combined with Aon and NFP, the deal will create a platform generating roughly $6.5 billion in revenue. The company anticipates $395 million in annual earnings benefits from the combination, consisting of $280 million in cost savings and $115 million in revenue synergies. The purchase will be financed with debt, with Aon planning to prioritize reducing leverage over the next two years.

Case noted that the insurance industry must grow its capital base to keep pace with emerging risks. He estimated global insurance capital at approximately $4.5 trillion and believes this figure must double or triple. To achieve this, he plans to engage institutional investors, pension funds, sovereign wealth funds, and wealthy individuals, which he estimates hold about $250 trillion in capital. Aon aims to act as a market maker, though investors must be able to assess the potential for large, correlated losses.

On pricing trends, Case stated that falling rates in some commercial lines are not a permanent shift to a soft market. He said some clients are using lower prices to purchase more coverage, which has helped Aon maintain growth despite softer pricing in commercial insurance and reinsurance. He also addressed cyber risk, noting that AI is helping insurers understand vulnerabilities while introducing new threats, such as recent flaws disclosed in the PHP language on Oct. 21.