Exhibit 99.1 Investor Relations News from Aon Aon Reports Second Quarter 2024 Results Second Quarter Key Metrics • Total revenue increased 18% to 3.8billion,includingorganicrevenuegrowthof62.46, and adjusted EPS increased 6% to 2.93•Forthefirstsixmonthsof2024,cashflowsfromoperationsdecreased27822 million, and free cash flow decreased 2 ...