---
title: "TOPAZ UK DEVELOPMENTS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/b3c3ee8c-e6df-5d41-8112-f958269435df
json: https://whiteintel.dev/api/public/dossier/b3c3ee8c-e6df-5d41-8112-f958269435df
identifier: oo:GB-COH-13955209
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# TOPAZ UK DEVELOPMENTS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-13955209`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/b3c3ee8c-e6df-5d41-8112-f958269435df  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/b3c3ee8c-e6df-5d41-8112-f958269435df  

## Ownership & control

### Owners / controllers

- **Mr Henry Alexander Brompton Gwyn-Jones** (beneficial owner) — 100% — https://whiteintel.dev/entity/677cc69a-92f1-581b-9224-593a4bd46596
- **Mr Henry Alexander Brompton Gwyn-Jones** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/37549e28-71bd-4d99-84cc-49f4341646ad

### Holdings / subsidiaries

- **KINGSCASTLE MANAGEMENT LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/3f6e3f44-5399-5e2c-ae13-230313a4f48c
- **WARDOUR INVESTMENTS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/5cd888fa-ccf7-5099-9f88-f63b9e0e409c
- **TOPAZ BIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/eb4e6aeb-dc9c-55a0-9b25-3e978a937a37
- **TOPAZ CROATIA INVESTMENTS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/b60c40e3-dd68-5db3-8154-bf9c393ef3f7
- **TOPAZ MIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/f74b5ffa-8881-5e3a-a4e0-b1c8733bdc9e
- **KINGSCASTLE LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/9b348ffd-9de0-5a96-895e-6d116e8772a8
- **KINGSCASTLE LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/9b348ffd-9de0-5a96-895e-6d116e8772a8
- **TOPAZ BIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/eb4e6aeb-dc9c-55a0-9b25-3e978a937a37
- **WARDOUR INVESTMENTS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/5cd888fa-ccf7-5099-9f88-f63b9e0e409c
- **TOPAZ CROATIA INVESTMENTS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b60c40e3-dd68-5db3-8154-bf9c393ef3f7
- **TOPAZ CROATIA INVESTMENTS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b60c40e3-dd68-5db3-8154-bf9c393ef3f7
- **KINGSCASTLE MANAGEMENT LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3f6e3f44-5399-5e2c-ae13-230313a4f48c

…and **2** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) or a one-off dossier — https://whiteintel.dev/pricing.

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

A **2-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:** `13955209`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2022-03-04
- **Registered office:** Apartment 1, New Wardour Castle, Tisbury, Salisbury, Wiltshire, SP3 6RH, United Kingdom
- **SIC:** 64209

### Officers

- GWYN-JONES, Henry Alexander Brompton — director · British · appointed 2022-03-04

### Beneficial owners (Persons with Significant Control)

- Mr Henry Alexander Brompton Gwyn-Jones — 75–100% shares · individual PSC · United Kingdom — since 2022-03-04

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13955209
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/13955209

## 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 **TOPAZ UK DEVELOPMENTS LIMITED** — https://whiteintel.dev/entity/b3c3ee8c-e6df-5d41-8112-f958269435df · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **TOPAZ UK DEVELOPMENTS LIMITED**. Human view: https://whiteintel.dev/entity/b3c3ee8c-e6df-5d41-8112-f958269435df · Structured JSON: https://whiteintel.dev/api/public/dossier/b3c3ee8c-e6df-5d41-8112-f958269435df._

_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"._