Aon Global has renewed its Aon Client Treaty insurance facility for 2026, adding facultative reinsurance alongside aviation and construction covers. The structure stays familiar, the scope does not.
The fast-follow automatic facility, backed by a Lloyd’s panel, remains led by QBE, according to Aon. Continuity matters here. So does scale.
As in 2025, the Aon Client Treaty provides 28.5% of pre-secured Lloyd’s coinsurance capacity on business placed through Aon’s Global Broking Centers in London and Singapore. The client dividend holds at 1.5% for 2026. No surprises. Stability looks intentional.
Joe Peiser, Aon’s chief executive officer for commercial risk, framed the renewal as a reflection of the firm’s risk capital structure. ACT now moves deeper into its second decade and pushes into facultative reinsurance, with aviation and space added to the mix.
One of the more material changes next year is access. ACT will open to global facultative reinsurance clients, widening participation and spreading portfolio risk.
According to Beinsure, that diversification angle matters as facultative demand keeps rising and balance sheets stay selective.
The facility also stretches into aviation and space, promising more streamlined access to capacity. Those markets haven’t exactly been short on volatility, but demand hasn’t softened either.
Construction terms are shifting as well. Aon says maximum construction periods will extend in 2026, reflecting evolving client needs.
Data centers sit at the center of that demand, driven by capital-heavy buildouts and longer project timelines. Insurers have been slow to catch up.
Elsewhere in the market, The Fidelis Partnership recently launched a consortium aimed at risks tied to artificial intelligence data center construction.
The firm points to estimates that place the AI data center market in the billions of $ in potential annual premium. Capacity, though, hasn’t kept pace.
The Fidelis Partnership says the consortium will target excess construction layers where supply remains thin.
Alongside new capital, it has worked with Fidelis Insurance Group and Fidelis Syndicate 3123 to build total consortium capacity of $250mn.
From Jan. 1, 2026, additional capacity may follow. TFP plans to seek further support from its Blackstone-backed Syndicate 2126. The timing lines up neatly with Aon’s expanded ACT terms. Coincidence, maybe. Market signal, more likely.
