---
title: "Mr John Mc Kenna — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ac81c8e1-4ec0-42ae-9959-bef3f225b60a
json: https://whiteintel.dev/api/public/dossier/ac81c8e1-4ec0-42ae-9959-bef3f225b60a
identifier: psc:FmAGzDuFRFsWuNpHokhv8Pj9-As
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Mc Kenna

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:FmAGzDuFRFsWuNpHokhv8Pj9-As`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ac81c8e1-4ec0-42ae-9959-bef3f225b60a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ac81c8e1-4ec0-42ae-9959-bef3f225b60a  

## Ownership & control

### Holdings / subsidiaries

- **GRAYSTONE LTD** (beneficial owner) — https://whiteintel.dev/entity/069ebd45-525c-544c-b8b7-40bcf60f90ba

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Mc Kenna**. Human view: https://whiteintel.dev/entity/ac81c8e1-4ec0-42ae-9959-bef3f225b60a · Structured JSON: https://whiteintel.dev/api/public/dossier/ac81c8e1-4ec0-42ae-9959-bef3f225b60a._

_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"._