Aon’s global reinsurance capabilities continue to get stronger, says CEO Greg Case

After posting 6% organic revenue growth for the second quarter of 2025 in its Reinsurance Solutions operation, global broking giant Aon’s Chief Executive Officer (CEO), Greg Case, has highlighted the firm’s client-oriented approach and strengthening global capabilities.

Earlier today, Aon reported a strong set of Q2 and H1 2025 results, with revenue growth across all segments, as Reinsurance Solutions revenue rose to $688 million in Q2’25 from $635 million in the prior year quarter, and to $1.9 billion in H1’25 from $1.8 billion in H1’24.

Aon highlighted double-digit growth in insurance-linked securities (ILS) and facultative placements as the key drivers of growth within Reinsurance Solutions and also noted growth in treaty as a result of net new business and ongoing strong retention.

Recently, during the broker’s earnings call, CEO Case was questioned on the reinsurance business, specifically the dynamic between facultative, treaty, and ILS.

“We’d suggest you step back a little bit and think about this isn’t really from a product orientation, it’s from a client orientation. And we’re literally stepping in and asking the question, how can we help clients both defend the house, think about their balance sheet and what they’re doing, but also grow it and actually build capability?

“And for us, whether treaty, facultative, ILS, all of these things sort of come into play, as you think about helping the client do that. So, in many respects, not competing, but complementary,” said Case.

The CEO described Aon’s reinsurance evolution as a “great story”, noting the firm’s “remarkable global capability, that continues to get stronger.”

“And now, with the 3X3 plan and the investment behind it in analytics, absolutely tremendous,” added Case.

As an example, Case pointed to Aon’s surge stop-loss cyber reinsurance cover placed at the mid-year renewals, which protects an insurer against abnormal loss activity over a pre-agreed time.

“This is a net new add that comes into the fray that helps us actually be better from a reinsurance standpoint,” said Case.

Expanding on its reinsurance capabilities and how this amplifies the Risk Capital segment at Aon, Case said: “So, you’ve got reinsurance, in and of itself, tremendously positive, continuing to progress with increasing demand, great opportunity within Risk Capital. Now we’re talking about how to take this capability and really embedded it into the Commercial Risk decision process as well. Very complimentary.

“Now we’re talking about the largest companies in the world, trillion dollar balance sheets, asking the question around, how do I understand volatility? And the answer to that is not a product. It’s not an individual solution. It is global Aon,” said Case.

“Think about just ILS, and what we’ve done for commercial companies, emanating from reinsurance. In 2021 we did basically no deals. 2020 nothing. And ‘24 we did 109 and year-to-date ‘25, we’re already at roughly 100. I mean, this is truly remarkable in terms of what the opportunity is here. So, for us, this is the wheelhouse, in terms of net new demand as it evolves over time that we’re going after.

“And so, pretty excited about the opportunities here as they connect reinsurance and commercial risk, and same story on the commercial risk side we can talk about as well,” he added.

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