---
title: "John Wilson Mason — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a49300e2-a435-4dba-bc10-95d09e5cec48
json: https://whiteintel.dev/api/public/dossier/a49300e2-a435-4dba-bc10-95d09e5cec48
identifier: psc:toqy_egm3Xm9aT6HMHKeedWa2EI
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# John Wilson Mason

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:toqy_egm3Xm9aT6HMHKeedWa2EI`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a49300e2-a435-4dba-bc10-95d09e5cec48  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a49300e2-a435-4dba-bc10-95d09e5cec48  

## Ownership & control

### Holdings / subsidiaries

- **J W MASON LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/255395d9-f3c8-5ebb-b600-e3342d45abe2

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **John Wilson Mason**. Human view: https://whiteintel.dev/entity/a49300e2-a435-4dba-bc10-95d09e5cec48 · Structured JSON: https://whiteintel.dev/api/public/dossier/a49300e2-a435-4dba-bc10-95d09e5cec48._

_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"._