---
title: "QUARTZ GAMES LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/320ca8cb-2255-56fb-bc41-6f6fa2af3f08
json: https://whiteintel.dev/api/public/dossier/320ca8cb-2255-56fb-bc41-6f6fa2af3f08
identifier: oo:GB-COH-11465541
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# QUARTZ GAMES LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11465541`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/320ca8cb-2255-56fb-bc41-6f6fa2af3f08  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/320ca8cb-2255-56fb-bc41-6f6fa2af3f08  

## Ownership & control

### Owners / controllers

- **Ms Sofia Beatrice Barclay** (beneficial owner) — 50% — https://whiteintel.dev/entity/18aa9fc5-e129-576e-86c4-97978c06121e
- **Mr Mark Edward Reade Quartley** (beneficial owner) — 75% — https://whiteintel.dev/entity/d2e4a9cb-9e09-5d51-8c37-bbb9492af1d3
- **Mr Mark Edward Reade Quartley** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/b16b6ee5-366e-4abf-a4fd-d21240998f8f
- **Ms Sofia Beatrice Barclay** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/4bdd98de-d396-44ac-a9e9-cf95751a23ba

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

A **4-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:** `11465541`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2018-07-16
- **Registered office:** 27 Mortimer Street, London, W1T 3BL, United Kingdom
- **SIC:** 96090

### Officers

- QUARTLEY, Mark Edward Reade — director · British · appointed 2018-07-16
- BARCLAY, Sofia Beatrice — director · British · appointed 2018-07-16 · resigned 2018-09-10

### Beneficial owners (Persons with Significant Control)

- Ms Sofia Beatrice Barclay — 25–50% shares · individual PSC · United Kingdom — since 2018-07-16
- Mr Mark Edward Reade Quartley — 50–75% shares · individual PSC · United Kingdom — since 2018-07-16

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11465541
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11465541

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **QUARTZ GAMES LIMITED**. Human view: https://whiteintel.dev/entity/320ca8cb-2255-56fb-bc41-6f6fa2af3f08 · Structured JSON: https://whiteintel.dev/api/public/dossier/320ca8cb-2255-56fb-bc41-6f6fa2af3f08._

_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"._