---
title: "James Mark Ptarmigan Douglas Stroyan — Ownership Dossier"
canonical: https://whiteintel.dev/entity/92d785cc-eb69-4eba-895c-0a85effa9a2d
json: https://whiteintel.dev/api/public/dossier/92d785cc-eb69-4eba-895c-0a85effa9a2d
identifier: psc:php_X0TWxCDoRBPzrBfluuoIdcw
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# James Mark Ptarmigan Douglas Stroyan

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:php_X0TWxCDoRBPzrBfluuoIdcw`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/92d785cc-eb69-4eba-895c-0a85effa9a2d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/92d785cc-eb69-4eba-895c-0a85effa9a2d  

## Ownership & control

### Holdings / subsidiaries

- **HIGHAM ESTATE TRUST COMPANY NO.1 LIMITED** (beneficial owner) — https://whiteintel.dev/entity/73cfe2a1-8ff2-58df-8462-4292bdbe004f

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **James Mark Ptarmigan Douglas Stroyan**. Human view: https://whiteintel.dev/entity/92d785cc-eb69-4eba-895c-0a85effa9a2d · Structured JSON: https://whiteintel.dev/api/public/dossier/92d785cc-eb69-4eba-895c-0a85effa9a2d._

_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"._