---
title: "Mark John Hull — Ownership Dossier"
canonical: https://whiteintel.dev/entity/39bea8d2-3f5b-4fad-bbd3-d2c833100321
json: https://whiteintel.dev/api/public/dossier/39bea8d2-3f5b-4fad-bbd3-d2c833100321
identifier: psc:9bPcoL-8vt75aDJoZlqCZt0uge8
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mark John Hull

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:9bPcoL-8vt75aDJoZlqCZt0uge8`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/39bea8d2-3f5b-4fad-bbd3-d2c833100321  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/39bea8d2-3f5b-4fad-bbd3-d2c833100321  

## Ownership & control

### Holdings / subsidiaries

- **SIGMA STUDIES LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/444549ab-6203-583f-9bdd-457bc037287a

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mark John Hull**. Human view: https://whiteintel.dev/entity/39bea8d2-3f5b-4fad-bbd3-d2c833100321 · Structured JSON: https://whiteintel.dev/api/public/dossier/39bea8d2-3f5b-4fad-bbd3-d2c833100321._

_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"._