---
title: "Mr John Martin Armstrong — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2b66fdfb-a2ad-4a52-a032-7524cd87821f
json: https://whiteintel.dev/api/public/dossier/2b66fdfb-a2ad-4a52-a032-7524cd87821f
identifier: psc:P_OEJFn5bSjvPlLAoT8jK1EN4co
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Martin Armstrong

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:P_OEJFn5bSjvPlLAoT8jK1EN4co`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2b66fdfb-a2ad-4a52-a032-7524cd87821f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2b66fdfb-a2ad-4a52-a032-7524cd87821f  

## Ownership & control

### Holdings / subsidiaries

- **NORTHFIELD UNDER 5'S LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/bc25c67d-6e06-560e-9673-9eb28b403ced

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Martin Armstrong**. Human view: https://whiteintel.dev/entity/2b66fdfb-a2ad-4a52-a032-7524cd87821f · Structured JSON: https://whiteintel.dev/api/public/dossier/2b66fdfb-a2ad-4a52-a032-7524cd87821f._

_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"._