---
title: "Mark Tremaine Hellyar — Ownership Dossier"
canonical: https://whiteintel.dev/entity/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6
json: https://whiteintel.dev/api/public/dossier/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6
identifier: psc:Gl5csySA-bZDe58DUleLFI5Zams
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mark Tremaine Hellyar

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:Gl5csySA-bZDe58DUleLFI5Zams`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6  

## Ownership & control

### Holdings / subsidiaries

- **CATACLEW LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f90bcc2b-08ba-5ea1-bf3d-0b0f96a521ff

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mark Tremaine Hellyar**. Human view: https://whiteintel.dev/entity/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6 · Structured JSON: https://whiteintel.dev/api/public/dossier/2cfefc19-0a6f-4fa4-aa26-90e71af5f8b6._

_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"._