---
title: "AON HOLDINGS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8232ae3a-368c-5a7c-9d15-bc1883dc3434
json: https://whiteintel.dev/api/public/dossier/8232ae3a-368c-5a7c-9d15-bc1883dc3434
identifier: oo:GB-COH-02265140
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# AON HOLDINGS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-02265140`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8232ae3a-368c-5a7c-9d15-bc1883dc3434  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8232ae3a-368c-5a7c-9d15-bc1883dc3434  

## Ownership & control

### Owners / controllers

- **AON UK HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/ee3dfda7-eec9-51e0-9922-7a468d681496
- **Aon Uk Holdings Limited** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0a51540b-2f93-4089-a46c-668b777e9c95

### UBO chain (walk to the ultimate owner)

A **28-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `02265140`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1988-06-06
- **Registered office:** The Aon Centre The Leadenhall Building, 122 Leadenhall Street, London, EC3V 4AN
- **SIC:** 64205

### Officers

- COSEC 2000 LIMITED — corporate secretary · appointed 2009-03-31
- MUGASHU, Gardner — director · British · appointed 2020-06-03
- SERGEANT, Erica Margaret — director · British · appointed 2019-01-24
- BURTON, Timothy James — secretary · British · appointed 1999-01-28 · resigned 2002-01-24
- STIFF, Graeme Robert George — secretary · British · appointed 2002-01-24 · resigned 2009-03-31
- STIFF, Graeme Robert George — secretary · British · resigned 1999-01-28
- ASHER, Christopher — director · American · appointed 2016-11-08 · resigned 2018-09-21
- CAMERON, Robert Ward — director · British · appointed 1995-11-27 · resigned 1998-07-31
- CARLESS, Raymond John — director · Australian · appointed 1997-11-10 · resigned 2000-10-01
- CHILTON, Grahame David — director · British · resigned 2013-11-26
- CLAYDEN, Paul Francis — director · British · appointed 2010-03-01 · resigned 2012-09-21
- COLDMAN, David John — director · British · resigned 2009-06-30
- CRUTTWELL, Edward Robert Charles — director · British · appointed 2008-12-19 · resigned 2010-06-01
- ECKERT, Neil David — director · British · resigned 2000-01-14
- FISHER, Yvonne Jane — director · British · appointed 2010-06-01 · resigned 2011-08-09
- FOX, Rodman Reeder — director · American · appointed 2000-04-01 · resigned 2006-01-31
- GALE, Stephen Dudley — director · British · appointed 2010-06-01 · resigned 2014-04-30
- HANSON, Philip Leighton — director · British · appointed 2014-03-18 · resigned 2016-04-15
- HARDING, Matthew Charles — director · British · resigned 1996-10-22
- HARRIS, Keith Reginald — director · British · appointed 1999-11-01 · resigned 2004-10-15

### Beneficial owners (Persons with Significant Control)

- [Aon Uk Holdings Limited](https://whiteintel.dev/entity/0a51540b-2f93-4089-a46c-668b777e9c95) — 75–100% shares · corporate PSC · United Kingdom — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/02265140
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/02265140

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **AON HOLDINGS LIMITED** — https://whiteintel.dev/entity/8232ae3a-368c-5a7c-9d15-bc1883dc3434 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **AON HOLDINGS LIMITED**. Human view: https://whiteintel.dev/entity/8232ae3a-368c-5a7c-9d15-bc1883dc3434 · Structured JSON: https://whiteintel.dev/api/public/dossier/8232ae3a-368c-5a7c-9d15-bc1883dc3434._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._