---
title: "MASTERKEY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/165f0fcc-db5d-563b-892c-c5e71ac4609d
json: https://whiteintel.dev/api/public/dossier/165f0fcc-db5d-563b-892c-c5e71ac4609d
identifier: oo:GB-COH-12600561
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MASTERKEY LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12600561`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/165f0fcc-db5d-563b-892c-c5e71ac4609d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/165f0fcc-db5d-563b-892c-c5e71ac4609d  

## Ownership & control

### Owners / controllers

- **Mr Gregory Knox** (beneficial owner) — 100% — https://whiteintel.dev/entity/d59f7b27-d974-55ab-aef7-8bcc02a54a24
- **Mr Gregory Knox** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/24dc754a-2894-4c9c-aa5d-444491361c8e

### 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:** `12600561`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-05-13
- **Registered office:** C/O Williamson & Croft York House, 20 York Street, Manchester, Greater Manchester, M2 3BB, United Kingdom
- **SIC:** 68209

### Officers

- KNOX, Gregory — director · British · appointed 2020-05-13

### Beneficial owners (Persons with Significant Control)

- Mr Gregory Knox — 75–100% shares · individual PSC · United Kingdom — since 2020-05-13

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12600561
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12600561

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MASTERKEY LIMITED**. Human view: https://whiteintel.dev/entity/165f0fcc-db5d-563b-892c-c5e71ac4609d · Structured JSON: https://whiteintel.dev/api/public/dossier/165f0fcc-db5d-563b-892c-c5e71ac4609d._

_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"._