Aon: 3 Key Takeaways for Long-Term Investors

On its third-quarter 2026 earnings call, held on Oct. 28, 2026, Aon (NYSE:AON) announced 6% organic revenue growth, which measures top-line expansion excluding acquisitions and currency movements. The firm's ability to expand sales and operating margins during turbulent market conditions underlines its long-term compounding power.

Three things management said stand out.

The proposed acquisition of USI, an insurance brokerage, targets a $40 billion addressable middle-market segment containing 200,000 potential corporate clients. Management expects $395 million in earnings before interest, taxes, depreciation, and amortization, or EBITDA, run-rate synergies across cost reductions and revenue cross-selling.

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