---
title: "John Mason — Ownership Dossier"
canonical: https://whiteintel.dev/entity/645c75ea-d9cd-438d-abdc-e0861b14cff2
json: https://whiteintel.dev/api/public/dossier/645c75ea-d9cd-438d-abdc-e0861b14cff2
identifier: psc:3S2B1Y4kzCRggBm20ppTxRcCfBQ
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# John Mason

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:3S2B1Y4kzCRggBm20ppTxRcCfBQ`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/645c75ea-d9cd-438d-abdc-e0861b14cff2  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/645c75ea-d9cd-438d-abdc-e0861b14cff2  

## Ownership & control

### Holdings / subsidiaries

- **GRACE SPACE LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/dca47a6f-36e8-5c51-99d6-f3282178edb3

## Sanctions / PEP screening (name match — unverified)

These are possible matches **by name only** — not confirmed as the same person/entity. Verify identity (date of birth, nationality, ID) before relying on this.

- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/1f8e4b76-d195-40c2-8480-66491925764d)
- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/b6925040-8a7b-59e3-bfc9-baa97acc040b)

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **John Mason**. Human view: https://whiteintel.dev/entity/645c75ea-d9cd-438d-abdc-e0861b14cff2 · Structured JSON: https://whiteintel.dev/api/public/dossier/645c75ea-d9cd-438d-abdc-e0861b14cff2._

_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"._