---
title: "ADDINGSTONE GROUP LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/65a3bf2f-39a4-51d4-b273-57d73aa2b64f
json: https://whiteintel.dev/api/public/dossier/65a3bf2f-39a4-51d4-b273-57d73aa2b64f
identifier: oo:GB-COH-12257584
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ADDINGSTONE GROUP LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12257584`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/65a3bf2f-39a4-51d4-b273-57d73aa2b64f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/65a3bf2f-39a4-51d4-b273-57d73aa2b64f  

## Cross-source identity

The same real-world entity, resolved across sources:

- **Addingstone Group Limited** — OpenOwnership · `oo:GB-COH-06843223` — https://whiteintel.dev/entity/8cd7c2e4-7c11-50e5-80d1-c879ef772a43
- **Addingstone Group Limited** — source · `psc:QgYGZ4Y5ydw0E9cK_RTAo-k9XoA` — https://whiteintel.dev/entity/fde7993d-4c5f-454e-8e03-6d79271e6659

## Ownership & control

### Owners / controllers

- **Mr Mark Simpson** (beneficial owner) — 100% — https://whiteintel.dev/entity/39a4b210-1e8f-5b90-b44c-70308b29743e
- **BROWN & BROWN RETAIL HOLDCO (EUROPE) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/3e8cb844-bab2-533e-9cfc-b01c926de141
- **Mr Mark Simpson** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2bd66d92-8406-4a0c-9ddc-e3d80a182a8a
- **BROWN & BROWN RETAIL HOLDCO (EUROPE) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3e8cb844-bab2-533e-9cfc-b01c926de141

### Holdings / subsidiaries

- **ADDINGSTONE INSURANCE SOLUTIONS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/a6b857df-897f-5201-9d27-4ce186bd8728
- **HONEYDELL HOLDINGS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c4afea2e-2c37-5c7c-a01f-b509ac738d3a
- **ADDINGSTONE INSURANCE SOLUTIONS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a6b857df-897f-5201-9d27-4ce186bd8728

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

A **26-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:** `12257584`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-10-11
- **Registered office:** 7th Floor, Corn Exchange, 55 Mark Lane, London, EC3R 7NE, England
- **SIC:** 99000

### Officers

- HUNTER, Andrew Stewart — secretary · appointed 2024-11-01
- HARTIGAN, Matthew James — director · British · appointed 2024-12-12
- SIMPSON, Mark John — director · British · appointed 2026-01-15
- SIMPSON, Mark John — director · British · appointed 2019-10-11 · resigned 2026-01-15

### Beneficial owners (Persons with Significant Control)

- [Brown & Brown Retail Holdco (Europe) Limited](https://whiteintel.dev/entity/3e8cb844-bab2-533e-9cfc-b01c926de141) — 75–100% shares · corporate PSC · England — since 2024-11-01
- Mr Mark Simpson — 75–100% shares · individual PSC · England — ceased 2024-11-01

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12257584
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12257584

## 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 **ADDINGSTONE GROUP LIMITED** — https://whiteintel.dev/entity/65a3bf2f-39a4-51d4-b273-57d73aa2b64f · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ADDINGSTONE GROUP LIMITED**. Human view: https://whiteintel.dev/entity/65a3bf2f-39a4-51d4-b273-57d73aa2b64f · Structured JSON: https://whiteintel.dev/api/public/dossier/65a3bf2f-39a4-51d4-b273-57d73aa2b64f._

_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"._