Who Owns Aon?
Updated onUse this page to find the Aon owner and explore the full ownership hierarchy. See the owner of Aon, the parent company, holding structures, and ultimate controllers.
Aon
Aon plc is a global professional services firm providing risk, retirement and human capital solutions, including insurance brokerage, reinsurance, and consulting.
Aon appears to be independent with no parent company.
Aon
Aon plc is a global professional services firm providing risk, retirement and human capital solutions, including insurance brokerage, reinsurance, and consulting.
Aon appears to be independent with no parent company.
Major Shareholders
Aon
Major Shareholders
| Name | Type | Ownership | As of |
|---|---|---|---|
BlackRock, Inc. Largest institutional holder in recent 13F/13G-derived holdings (reported across BlackRock subsidiaries/Advisors). Percent is approximate from Q2 2026 filings. | Institutional | 7.4% | Jun 2026 |
Vanguard Capital Management LLC (Vanguard group entities aggregated) Vanguard ownership is reported across different Vanguard advisory entities after early‑2026 reporting changes; percent is an approximate aggregated figure from Q1–Q2 2026 data. | Institutional | 6.4% | Mar 2026 |
The Capital Group Companies, Inc. (Capital Group) Active manager (Capital Group) reported roughly mid‑single-digit ownership in public filings and institutional‑holdings aggregators for Q1/Q2 2026. | Institutional | 5.9% | Mar 2026 |
J.P. Morgan Asset Management (JPMorgan Chase & Co.) Reported as a top institutional holder in Q1/Q2 2026 filings and public ownership screens (approximate percent). | Institutional | 5.7% | Mar 2026 |
State Street Corporation State Street reported just around the 5% level in Schedule 13G/A filings referenced in Aon’s 2026 proxy materials. | Institutional | 5.0% | Mar 2026 |
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