---
title: "Mr John Stephan Boak — Ownership Dossier"
canonical: https://whiteintel.dev/entity/25f6c06d-dece-442b-afbf-2bbf939dbbe8
json: https://whiteintel.dev/api/public/dossier/25f6c06d-dece-442b-afbf-2bbf939dbbe8
identifier: psc:_n4avBGUbA7YKRnvVOJWNOcnx4E
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Stephan Boak

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:_n4avBGUbA7YKRnvVOJWNOcnx4E`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/25f6c06d-dece-442b-afbf-2bbf939dbbe8  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/25f6c06d-dece-442b-afbf-2bbf939dbbe8  

## Ownership & control

### Holdings / subsidiaries

- **THURMASTON MFG LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e7db70bf-b885-5957-b161-aed92bb4f0cf

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Stephan Boak**. Human view: https://whiteintel.dev/entity/25f6c06d-dece-442b-afbf-2bbf939dbbe8 · Structured JSON: https://whiteintel.dev/api/public/dossier/25f6c06d-dece-442b-afbf-2bbf939dbbe8._

_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"._