---
title: "SQUARE BAY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3
json: https://whiteintel.dev/api/public/dossier/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3
identifier: oo:GB-COH-08759478
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SQUARE BAY LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-08759478`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3  

## Ownership & control

### Owners / controllers

- **Mr Markham James Hanson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/cc412bb9-2434-4a23-a26f-f8234fe1d1f2
- **Mr Thomas Andrew Vaughan-Jones** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8a7e93b3-d400-444b-863d-11933f1caa02
- **Mr David James Kidston Mckay** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e6e174b5-526c-4554-bf11-d6d07b35b04c

### Holdings / subsidiaries

- **PONTIAC ESTATES LLP** (beneficial owner) — 50% — https://whiteintel.dev/entity/b203426a-e95d-5160-a27d-15cdcc8acacf
- **GERONIMO ESTATES LLP** (beneficial owner) — 50% — https://whiteintel.dev/entity/cba7d5fa-7ad0-57ef-833d-745cd1921d8b
- **URSA ESTATES LLP** (beneficial owner) — 50% — https://whiteintel.dev/entity/a4cb0cd0-6630-50eb-a084-6bd8085684a8
- **FEEDER ESTATES LLP** (beneficial owner) — 50% — https://whiteintel.dev/entity/e769ac7e-201f-5723-b5e0-913c63faa7e6
- **TAMANEND ESTATES LLP** (beneficial owner) — 50% — https://whiteintel.dev/entity/9fb50e25-5a96-518a-a047-59297ead95cd
- **URSA ESTATES LLP** (beneficial owner) — https://whiteintel.dev/entity/a4cb0cd0-6630-50eb-a084-6bd8085684a8
- **WOOL ESTATES LLP** (beneficial owner) — https://whiteintel.dev/entity/05dda9ad-289e-4bcf-8c7c-3f44ec331118
- **TAMANEND ESTATES LLP** (beneficial owner) — https://whiteintel.dev/entity/9fb50e25-5a96-518a-a047-59297ead95cd

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

A **3-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:** `08759478`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2013-11-04
- **Registered office:** 9 Bonhill Street, London, EC2A 4DJ
- **SIC:** 41100

## Financials (Companies House accounts)

| Figure | 2025-11-30 |
|---|---:|
| Net assets | £3 |
| Cash | £3 |
| Shareholder funds | £3 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- MCKAY, David James Kidston — director · British · appointed 2013-11-04
- PAGE, William Toby — director · British · appointed 2015-08-01
- VAUGHAN-JONES, Thomas Andrew — director · British · appointed 2013-11-04
- HANSON, Markham James — director · British · appointed 2013-11-04 · resigned 2025-09-30

### Beneficial owners (Persons with Significant Control)

- Mr David James Kidston Mckay — 25–50% shares · individual PSC — since 2016-04-06
- Mr Thomas Andrew Vaughan-Jones — 25–50% shares · individual PSC — since 2016-04-06
- Mr Markham James Hanson — 25–50% shares · individual PSC — ceased 2025-09-30

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/08759478
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/08759478/filing-history
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/08759478

## 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 **SQUARE BAY LIMITED** — https://whiteintel.dev/entity/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SQUARE BAY LIMITED**. Human view: https://whiteintel.dev/entity/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3 · Structured JSON: https://whiteintel.dev/api/public/dossier/38ee9eda-b56a-5fc1-8c30-edcbf5e968f3._

_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"._