---
title: "Mr Mark John Jefferies — Ownership Dossier"
canonical: https://whiteintel.dev/entity/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45
json: https://whiteintel.dev/api/public/dossier/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45
identifier: oo-person:GB-COH-PER-12076683-GBnR-Atp1yXZ5MQ-_SlKMGz2IKg
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark John Jefferies

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-12076683-GBnR-Atp1yXZ5MQ-_SlKMGz2IKg`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45  

## Ownership & control

### Holdings / subsidiaries

- **WHATBOX CONSULTING LTD** (beneficial owner) — 50% — https://whiteintel.dev/entity/9805d07d-886e-5e61-a8aa-be995e1a97a5

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark John Jefferies**. Human view: https://whiteintel.dev/entity/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45 · Structured JSON: https://whiteintel.dev/api/public/dossier/19f503ba-38dc-5fc4-8d4e-cc89c61a8b45._

_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"._