---
title: "Mr John Graham Broster — Ownership Dossier"
canonical: https://whiteintel.dev/entity/6705edef-6aad-421d-b587-8ee6a125ef99
json: https://whiteintel.dev/api/public/dossier/6705edef-6aad-421d-b587-8ee6a125ef99
identifier: psc:mM9G8Moa0-BNan1v4O4tI4xIC7c
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Graham Broster

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:mM9G8Moa0-BNan1v4O4tI4xIC7c`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/6705edef-6aad-421d-b587-8ee6a125ef99  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/6705edef-6aad-421d-b587-8ee6a125ef99  

## Ownership & control

### Holdings / subsidiaries

- **J & S TRIUMPH LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/188900f2-beca-5f2a-91c0-5c7e515e7a86

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Graham Broster**. Human view: https://whiteintel.dev/entity/6705edef-6aad-421d-b587-8ee6a125ef99 · Structured JSON: https://whiteintel.dev/api/public/dossier/6705edef-6aad-421d-b587-8ee6a125ef99._

_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"._