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#2 broker; acquired NFP for $13B in 2024 doubling middle-market exposure; ~$15B 2024 revenue; Ireland-domiciled for tax.
Cash + stock consideration paid for acquisitions, by year. The 2024 spike is the NFP transaction — $13.4B (~$7B cash + ~$6B Aon stock), the largest broker M&A deal in history. Closed April 25, 2024. Other years are tuck-in only.
2020 — 2025
Source: Aon plc 10-K filings (cash flow from investing - business acquisitions, net of cash acquired) and Aon-NFP merger SEC 8-K (Dec 2023) (Updated: 2024-FY)
Annual revenue split under Aon's 2024 segmentation: Risk Capital (Commercial Risk + Reinsurance) and Human Capital (Health + Wealth Solutions). The 2024 jump in Human Capital reflects the NFP acquisition (closed April 2024) — NFP is largely a benefits/wealth platform.
2020 — 2024
Source: Aon plc 10-K filings (2023-2024 segmented under new structure; 2020-2022 mapped from legacy segments) (Updated: 2024-FY)
Quarterly breakdown of revenue by product line and service category
2021-Q2 — 2026-Q1
Quarterly breakdown of revenue by geographic region
2021-Q2 — 2026-Q1
Data from SEC filings via FMP • 62 periods available