---
title: "Mr Mark Mason — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2a71f199-155f-4073-9eda-35dcdda7d41f
json: https://whiteintel.dev/api/public/dossier/2a71f199-155f-4073-9eda-35dcdda7d41f
identifier: psc:Xz4yMRR4Psp0GbzszJH1ecroty0
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark Mason

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:Xz4yMRR4Psp0GbzszJH1ecroty0`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2a71f199-155f-4073-9eda-35dcdda7d41f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2a71f199-155f-4073-9eda-35dcdda7d41f  

## Ownership & control

### Holdings / subsidiaries

- **SET WAVES LTD** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/4969a78c-cb8b-5313-a5a9-6ac4e72c52bb

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark Mason**. Human view: https://whiteintel.dev/entity/2a71f199-155f-4073-9eda-35dcdda7d41f · Structured JSON: https://whiteintel.dev/api/public/dossier/2a71f199-155f-4073-9eda-35dcdda7d41f._

_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"._