---
title: "Arthur J. Gallagher & Co — Ownership Dossier"
canonical: https://whiteintel.dev/entity/813ea148-78f6-584f-b40f-3aec3c2ee766
json: https://whiteintel.dev/api/public/dossier/813ea148-78f6-584f-b40f-3aec3c2ee766
identifier: oo:GB-COH-OC391007
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Arthur J. Gallagher & Co

**Type:** Company  
**Identifier:** `oo:GB-COH-OC391007`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/813ea148-78f6-584f-b40f-3aec3c2ee766  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/813ea148-78f6-584f-b40f-3aec3c2ee766  

## Ownership & control

### Owners / controllers

- **GALLAGHER HOLDINGS (UK) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/c38c7c9f-1406-50a1-8f9d-3dd7c8e533b4
- **ARTHUR J. GALLAGHER (UK) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/fc1e918b-ab95-5636-8d25-6c63eb843d8b
- **Mr Rupert Swallow** (beneficial owner) — https://whiteintel.dev/entity/e8ba3609-72a7-504e-95ce-eef306e567fe
- **Mr Grahame David Chilton** (beneficial owner) — https://whiteintel.dev/entity/7ee10ef5-a79f-54a5-9ae6-d2b64ac7d126
- **Mr Simon James Behagg** (beneficial owner) — https://whiteintel.dev/entity/b56d8259-d228-5aac-b860-bc132d812ac1
- **Mr Simon James Behagg** (beneficial owner) — https://whiteintel.dev/entity/abc26fff-432d-4a27-90dd-9c9356a8fc02
- **Mr Grahame David Chilton** (beneficial owner) — https://whiteintel.dev/entity/948873a3-8abf-4a35-bd00-f3dc0a6f3fd3
- **Mr Rupert Swallow** (beneficial owner) — https://whiteintel.dev/entity/84adba30-00bf-441b-aa2a-b37adf8c4a3e
- **Gallagher Holdings (Uk) Limited** (beneficial owner) — https://whiteintel.dev/entity/4ca7cbee-c7f2-49ed-afe8-36f3270a17c3
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/24a7ed78-d88c-470c-a18a-6d7650189692
- **Arthur J. Gallagher (Uk) Limited** (beneficial owner) — https://whiteintel.dev/entity/71f2c624-681d-4872-9b1a-2cf5a29ed5a8

### Holdings / subsidiaries

- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/a7d2319e-1f2c-5864-ab96-30c5c8a3cb50
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/54d690ce-40aa-526a-a01a-35d006b1411f
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/e6f7e825-871b-59c3-a565-61691278c798
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/12b031c7-46ee-5ecf-8592-fdcbbe9a6676
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/ae4b2ffd-e6ca-53a2-addc-ab8fce599e52
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/4d9a3c9b-e1c5-5319-9cea-b043f695cff5
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/31a696f6-05e5-5f10-bd9a-97d5847e247d
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/af1ebdb2-3aa3-5ce0-9c1b-ed92b4357fa2
- **Arthur J. Gallagher & Co** (beneficial owner) — https://whiteintel.dev/entity/58879f31-4e91-5683-97a8-b22292e5eabf

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

A **27-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.

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/OC391007

## 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 **Arthur J. Gallagher & Co** — https://whiteintel.dev/entity/813ea148-78f6-584f-b40f-3aec3c2ee766 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Arthur J. Gallagher & Co**. Human view: https://whiteintel.dev/entity/813ea148-78f6-584f-b40f-3aec3c2ee766 · Structured JSON: https://whiteintel.dev/api/public/dossier/813ea148-78f6-584f-b40f-3aec3c2ee766._

_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"._