---
title: "POSTREALM LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/67cd1561-b2dc-5726-a809-2d5253963dab
json: https://whiteintel.dev/api/public/dossier/67cd1561-b2dc-5726-a809-2d5253963dab
identifier: oo:GB-COH-06855619
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# POSTREALM LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-06855619`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/67cd1561-b2dc-5726-a809-2d5253963dab  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/67cd1561-b2dc-5726-a809-2d5253963dab  

## Ownership & control

### Owners / controllers

- **KINGSCASTLE LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/9b348ffd-9de0-5a96-895e-6d116e8772a8
- **TOPAZ MIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/f74b5ffa-8881-5e3a-a4e0-b1c8733bdc9e
- **TOPAZ MIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f74b5ffa-8881-5e3a-a4e0-b1c8733bdc9e
- **KINGSCASTLE LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/9b348ffd-9de0-5a96-895e-6d116e8772a8

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

A **18-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:** `06855619`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2009-03-23
- **Registered office:** 2 - 4 Cork Street, London, W1S 3LG, England
- **SIC:** 68100, 68209

### Officers

- VANNINI, Bruno — director · French · appointed 2025-06-25
- BAINBRIDGE, Kathleen — secretary · Other · appointed 2009-03-31 · resigned 2013-09-30
- BISHOP, Jamie — secretary · appointed 2017-12-07 · resigned 2021-11-01
- HEZEL, Malcolm William Froom — secretary · appointed 2013-10-01 · resigned 2017-12-07
- DAVIS, Andrew Simon — director · British · appointed 2009-03-23 · resigned 2009-03-31
- GWYN-JONES, Henry Alexander Brompton — director · British · appointed 2020-04-26 · resigned 2025-06-25
- GWYN-JONES, Timothy — director · British · appointed 2009-03-31 · resigned 2021-04-08

### Beneficial owners (Persons with Significant Control)

- [Topaz Midco Limited](https://whiteintel.dev/entity/f74b5ffa-8881-5e3a-a4e0-b1c8733bdc9e) — 75–100% shares · corporate PSC · England — since 2022-09-22
- [Kingscastle Ltd](https://whiteintel.dev/entity/9b348ffd-9de0-5a96-895e-6d116e8772a8) — 75–100% shares · corporate PSC · England — ceased 2022-09-22

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/06855619
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/06855619

## 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 **POSTREALM LIMITED** — https://whiteintel.dev/entity/67cd1561-b2dc-5726-a809-2d5253963dab · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **POSTREALM LIMITED**. Human view: https://whiteintel.dev/entity/67cd1561-b2dc-5726-a809-2d5253963dab · Structured JSON: https://whiteintel.dev/api/public/dossier/67cd1561-b2dc-5726-a809-2d5253963dab._

_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"._