---
title: "Mr Marcus O'Sullivan — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4887be4d-a3a2-4ae5-83ee-db307493d623
json: https://whiteintel.dev/api/public/dossier/4887be4d-a3a2-4ae5-83ee-db307493d623
identifier: psc:jMl5a9sc2FS_Q_j1EbaiPrSu82s
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Marcus O'Sullivan

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:jMl5a9sc2FS_Q_j1EbaiPrSu82s`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4887be4d-a3a2-4ae5-83ee-db307493d623  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4887be4d-a3a2-4ae5-83ee-db307493d623  

## Ownership & control

### Holdings / subsidiaries

- **DESEO LOCKING SYSTEMS LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/d1523e5f-7a41-514b-8338-64e84d123468

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Marcus O'Sullivan**. Human view: https://whiteintel.dev/entity/4887be4d-a3a2-4ae5-83ee-db307493d623 · Structured JSON: https://whiteintel.dev/api/public/dossier/4887be4d-a3a2-4ae5-83ee-db307493d623._

_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"._