---
title: "THE UNION-CASTLE MAIL STEAMSHIP COMPANY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/da278df0-a0fe-5d70-aa40-c91b0cc3866b
json: https://whiteintel.dev/api/public/dossier/da278df0-a0fe-5d70-aa40-c91b0cc3866b
identifier: oo:GB-COH-02444991
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THE UNION-CASTLE MAIL STEAMSHIP COMPANY LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-02444991`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/da278df0-a0fe-5d70-aa40-c91b0cc3866b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/da278df0-a0fe-5d70-aa40-c91b0cc3866b  

## Ownership & control

### Owners / controllers

- **CALEDONIA INVESTMENTS PLC** (beneficial owner) — 100% — https://whiteintel.dev/entity/fccec888-92d1-53ec-bc56-2bfdfd38f5d9
- **CALEDONIA INVESTMENTS PLC** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/fccec888-92d1-53ec-bc56-2bfdfd38f5d9

### 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:** `02444991`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1989-11-21
- **Registered office:** Cayzer House, 30 Buckingham Gate, London, SW1E 6NN, England
- **SIC:** 99999

### Officers

- COX, Verity Claire — secretary · appointed 2026-01-01
- POLLARD, Alexander — secretary · appointed 2022-04-01
- MAY, Caroline Elizabeth — director · British · appointed 2024-11-01
- MEMMOTT, Robert William — director · British · appointed 2023-10-01
- WEBSTER, Richard — director · British · appointed 2019-12-31
- BURWOOD, Krista — secretary · appointed 2019-12-31 · resigned 2022-03-31
- DENISON, Graeme Philip — secretary · British · appointed 2003-12-05 · resigned 2019-12-31
- DENISON, Graeme Philip — secretary · British · appointed 1998-08-27 · resigned 2003-01-29
- LAMBIS, George Julius — secretary · British · resigned 1994-09-30
- MACKLEY, Nicholas Andrew — secretary · British · appointed 1994-11-07 · resigned 1998-08-27
- MEHRTENS, John Ivor — secretary · British · appointed 2003-01-29 · resigned 2003-12-05
- WEBSTER, Richard — secretary · appointed 2022-04-01 · resigned 2025-12-31
- BURWOOD, Krista — director · British · appointed 2020-12-01 · resigned 2022-03-31
- CARTER, Anthony John — director · British · appointed 1998-08-05 · resigned 2006-09-29
- CARTWRIGHT, Jonathan Harry — director · British · appointed 2006-09-29 · resigned 2009-12-08
- DENISON, Graeme Philip — director · British · appointed 1998-08-05 · resigned 2019-12-31
- HUGHES, Henry Joseph — director · Irish · resigned 1993-05-18
- LAMBIS, George Julius — director · British · resigned 1994-09-30
- LIVETT, Timothy James — director · British · appointed 2020-12-01 · resigned 2023-09-30
- NETTLETON, John Dering — director · English · resigned 1998-07-30

### Beneficial owners (Persons with Significant Control)

- [Caledonia Investments Plc](https://whiteintel.dev/entity/fccec888-92d1-53ec-bc56-2bfdfd38f5d9) — 75–100% shares · corporate PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/02444991
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/02444991

## 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 **THE UNION-CASTLE MAIL STEAMSHIP COMPANY LIMITED** — https://whiteintel.dev/entity/da278df0-a0fe-5d70-aa40-c91b0cc3866b · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THE UNION-CASTLE MAIL STEAMSHIP COMPANY LIMITED**. Human view: https://whiteintel.dev/entity/da278df0-a0fe-5d70-aa40-c91b0cc3866b · Structured JSON: https://whiteintel.dev/api/public/dossier/da278df0-a0fe-5d70-aa40-c91b0cc3866b._

_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"._