Aon Reports Second Quarter 2025 Results DUBLIN - July 25, 2025 - Aon plc (NYSE: AON) today reported results for the three months ended June 30, 2025. | | | Second Quarter 2025 | | | First Half 2025 | | | --- | --- | --- | --- | --- | --- | --- | | | 2025 | 2024 | Change | 2025 | 2024 | Change | | Total revenue | $4,155 |$3,760 | 11% | $8,884 |$7,830 | 13% | | Organic revenue growth (Non-GAAP) | | | 6% | | | 5% | | Operating income | $859 |$656 | 31% | $2,320 |$2,121 | 9% | | Adjusted operating income (N ...