---
title: "Mr Mark Costello — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e7fbf70b-26be-5bb6-b8df-cc560233ab4b
json: https://whiteintel.dev/api/public/dossier/e7fbf70b-26be-5bb6-b8df-cc560233ab4b
identifier: oo-person:GB-COH-PER-13459904-wNV7ZsEAsUjenu5K2hZ5PA5oc9Q
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark Costello

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-13459904-wNV7ZsEAsUjenu5K2hZ5PA5oc9Q`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e7fbf70b-26be-5bb6-b8df-cc560233ab4b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e7fbf70b-26be-5bb6-b8df-cc560233ab4b  

## Ownership & control

### Holdings / subsidiaries

- **IHHL LTD** (beneficial owner) — 50% — https://whiteintel.dev/entity/7afce1e5-f0f9-58ee-8f91-44cc894b5f3b

## Provenance

- OpenOwnership — https://www.openownership.org

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark Costello**. Human view: https://whiteintel.dev/entity/e7fbf70b-26be-5bb6-b8df-cc560233ab4b · Structured JSON: https://whiteintel.dev/api/public/dossier/e7fbf70b-26be-5bb6-b8df-cc560233ab4b._

_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"._