Sustained Organic Revenue Growth
Organic revenue growth of 6% for the full year (second consecutive year) and 5% in Q4, supporting the company's mid-single-digit or greater organic growth objective.
Total Revenue and Segment Strength
Full-year total revenue of $17.0 billion, up 9% year-over-year; Q4 total revenue of $4.3 billion, up 4% year-over-year despite wealth and disposition impacts. Commercial risk and reinsurance each delivered ~6%+ growth in the year; reinsurance delivered 8% growth driven by insurance-linked securities and STG analytics.
Margin and Earnings Expansion
Full-year adjusted operating margin expanded 90 basis points to 32.4%; Q4 adjusted operating margin expanded 220 basis points to 35.5%. Adjusted EPS was $17.07 for the year (+9% Y/Y) and $4.85 in Q4 (+10% Y/Y).
Free Cash Flow and Capital Position
Full-year free cash flow grew 14% to $3.2 billion; Q4 free cash flow increased 16%. Company paid down $1.9 billion of debt in 2025, reducing leverage to ~2.9x, and reports approximately $7 billion of available capital entering 2026.
Capital Return and M&A Execution
Returned $1.0 billion to shareholders in 2025 (including $1.0 billion in share repurchases). Continued disciplined tuck-in M&A program: NFP contributed ~$42 million of acquired EBITDA for the year; historically acquisitions have yielded strong post-acquisition revenue growth (~12%) and portfolio IRR (>20%).
ABS, Innovation and Data Center Momentum
Accelerated Aon Business Services (ABS) and AI deployments (Broker Copilot, Claims Copilot, analyzers). Market issuance of relevant cap bonds rose >40% in 2025 and Aon's issuance increased >50%; cap bonds outstanding reached $59 billion. Announced a $1.0 billion capacity expansion to $2.5 billion and placed the first-ever data center-specific reinsurance treaty aligning up to $5 billion of capital.
Talent Investment and New Business Contribution
Revenue-generating talent increased net 6% in 2025 (within 4-8% objective). New business contributed strongly—~9-10 points of organic revenue growth for the year—and cohort seasoning contributed ~50 basis points to 2025 growth.
Restructuring Progress and Expected Savings
AAU restructuring produced $160 million of savings in 2025 (ahead $10 million of plan) with $50 million saved in Q4; company now expects total AAU investment of $1.3 billion and $450 million in total savings, with $180 million of restructuring savings expected across 2026-2027 (including $100 million contributing ~50 bps in 2026).