---
title: "Mr John James Barker — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a0d5b9ad-6237-420e-88d4-a5116a5cbdab
json: https://whiteintel.dev/api/public/dossier/a0d5b9ad-6237-420e-88d4-a5116a5cbdab
identifier: psc:OGA2Wv0UNm5UyJV5uSnH4laLiB8
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John James Barker

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:OGA2Wv0UNm5UyJV5uSnH4laLiB8`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a0d5b9ad-6237-420e-88d4-a5116a5cbdab  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a0d5b9ad-6237-420e-88d4-a5116a5cbdab  

## Ownership & control

### Holdings / subsidiaries

- **HATFIELD DIMMINGS UNDERWRITING LLP** (beneficial owner) — https://whiteintel.dev/entity/b2cc10ca-24d4-55e2-94a0-b627cf79cc5e

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John James Barker**. Human view: https://whiteintel.dev/entity/a0d5b9ad-6237-420e-88d4-a5116a5cbdab · Structured JSON: https://whiteintel.dev/api/public/dossier/a0d5b9ad-6237-420e-88d4-a5116a5cbdab._

_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"._