On the Record · Aon
Aon subsidiaries, as it lists them
The subsidiaries Aon lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Admiseg S.A. | Argentina |
| Aon Argentina Corredores de Reaseguros S.A. | Argentina |
| Aon Risk Services Argentina S.A. | Argentina |
| Aon Soluciones S.A. | Argentina |
| Asevasa Argentina S.A. | Argentina |
| Marinaro Dundas S.A. | Argentina |
| SN Re S.A. | Argentina |
| Swire Blanch MSTC II S.A. | Argentina |
| Swire Blanch MSTC S.A. | Argentina |
| Affinity Risk Partners (Brokers) Pty Ltd | Australia |
| Aon Advisory Australia Pty Limited | Australia |
| Aon Australia Group Pty Ltd | Australia |
| Aon Australian Holdco 1 Pty Ltd | Australia |
| Aon Australian Holdco 2 Pty Ltd | Australia |
| Aon Australian Holdco 3 Pty Ltd | Australia |
| Aon Charitable Foundation Pty Ltd | Australia |
| Aon Consolidated Group Pty Ltd | Australia |
| Aon Corporation Australia Limited | Australia |
| Aon Group Pty Ltd | Australia |
| Aon Hewitt Financial Advice Limited | Australia |
| Aon Holdings Australia Pty Limited | Australia |
| Aon Product Design & Development Australia Pty Ltd | Australia |
| Aon Reinsurance Australia Limited | Australia |
| Aon Risk & Asset Management Pty Ltd | Australia |
| Aon Risk Services Australia Limited | Australia |
| Aon Services Pty Ltd | Australia |
| Aon Superannuation Pty Ltd | Australia |
| Cut-e Australia Pty Ltd | Australia |
| HIA Insurance Services Pty Ltd | Australia |
| One Underwriting Pty Ltd | Australia |
| Aon Austria GmbH | Austria |
| Aon Holdings Austria GmbH | Austria |
| One Underwriting Agency GmbH (Austria Branch) | Austria |
| Insurance Company of the Bahamas Limited | Bahamas |
| J.S. Johnson & Company Limited | Bahamas |
| Aon Bahrain W.L.L. | Bahrain |
| Aon Insurance Managers (Barbados) Ltd. | Barbados |
| Aon Polar (Barbados) Ltd. | Barbados |
| Aon Belgium B.V. | Belgium |
| Crion N.V. | Belgium |
| Probabilitas N.V./S.A. | Belgium |
| Aon (Bermuda) Ltd. | Bermuda |
| Aon Bermuda Acquisition Ltd. | Bermuda |
| Aon Bermuda Holding Company Limited | Bermuda |
| Aon Bermuda QI Holdings Ltd. | Bermuda |
| Aon Global Operations Bermuda Limited | Bermuda |
| Aon Group (Bermuda) Ltd. | Bermuda |
| Aon Insurance Managers (Bermuda) Ltd. | Bermuda |
| Aon Reinsurance Bermuda Ltd. | Bermuda |
| International Risk Management Group Ltd. | Bermuda |
| Marilla Investment Management Ltd. | Bermuda |
| One Underwriting (Bermuda) Ltd. | Bermuda |
| White Rock Insurance (SAC) Ltd. | Bermuda |
| Aon Bolivia S.A. Corredores de Seguros | Bolivia |
| Aon Consulting Bolivia S.R.L. | Bolivia |
| Aon Re Bolivia S.A. Corredores de Reaseguros | Bolivia |
| Aon Brasil Corretora de Resseguros Ltda. | Brazil |
| Aon Brasil Holdings Participacoes Ltda | Brazil |
| Aon Brasil Servicos de Consultoria em Investimentos Ltda | Brazil |
| Aon Holdings Corretores de Seguros Ltda. | Brazil |
| Aon Servicos De Saude Ltda. | Brazil |
| Associacao Instituto Aon | Brazil |
| NFP (BVI) Limited | British Virgin Islands |
| NFP Management (Alberta) Corp. | Canada |
| Alberta USLP Underwriting Solutions LP | Canada |
| Aon Solutions 3 Limited | Canada |
| Coles Aon Partnership | Canada |
| J. Allan Brown Consultants, Inc. | Canada |
| Aon Canada Holdings N.S. ULC | Canada |
| Aon Finance N.S. 1, ULC | Canada |
| Aon Finance N.S. 5, ULC | Canada |
| Aon Finance N.S. 9, ULC | Canada |
| Aon Reinsurance Canada ULC | Canada |
| Aon Solutions Canada Inc. | Canada |
| Aon Solutions Corp. | Canada |
| 2171817 Ontario Inc. | Canada |
| 2733832 Ontario Inc. | Canada |
| 7193599 Canada Inc. | Canada |
| Aon Canada Inc. | Canada |
| Aon Direct Group Inc. | Canada |
| Aon Finance Canada 1 Corp. | Canada |
| Aon Finance Canada 2 Corp. | Canada |
| Aon Investments Canada Inc. | Canada |
| Aon Reed Stenhouse Inc. | Canada |
| Aon Solutions Canada, a Partnership | Canada |
| CHES Special Risks Inc. | Canada |
| Group Force Benefits Inc. | Canada |
| IAO Actuarial Consulting Services Inc. | Canada |
| K & K Insurance Brokers, Inc. | Canada |
| Linx Underwriting Solutions Inc. | Canada |
| Mondelis Corporation | Canada |
| NFP Canada Corp. | Canada |
| NFP Insurance Services Corp. | Canada |
| Northern Premium Financing Corp. | Canada |
| Townsend (Global Real Estate) GP Ontario Inc. | Canada |
| Aon Parizeau Inc. | Canada |
| Minet Inc. | Canada |
| Aon Insurance Managers (Cayman) Ltd. | Cayman Islands |
| Aon Polar Cayman 1 Limited | Cayman Islands |
| Aon Polar Cayman 2 Limited | Cayman Islands |
| Aon Risk Solutions (Cayman) Ltd. | Cayman Islands |
| Aon Chile Corredores de Reaseguros Limitada | Chile |
| Aon Risk Services (Chile) Corredores de Seguros Limitada | Chile |
| Aon Risk Services (Chile) Inversiones y Servicios Limitada | Chile |
| Asesorias e Inversiones Benefits SpA | Chile |
| Benefits Corredores de Seguros SpA | Chile |
| Inversiones Benfield Chile Ltda. | Chile |
| Aon Enterprise Solutions (Shanghai) Co., Ltd. | China |
| Aon-COFCO Insurance Brokers Co., Ltd. | China |
The list is long; these are the first 109 as the company lists them. From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Aon’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-13. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.