---
title: "Mr Mark Sebastian Matthews — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5dee6ebe-0aac-5f80-be7e-9d280a5cd435
json: https://whiteintel.dev/api/public/dossier/5dee6ebe-0aac-5f80-be7e-9d280a5cd435
identifier: oo-person:GB-COH-PER-12781311-Se5JcKnjhw-o78nX_ij6b9xoT2U
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mark Sebastian Matthews

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-12781311-Se5JcKnjhw-o78nX_ij6b9xoT2U`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5dee6ebe-0aac-5f80-be7e-9d280a5cd435  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5dee6ebe-0aac-5f80-be7e-9d280a5cd435  

## Ownership & control

### Holdings / subsidiaries

- **M T VOICE AND DATA LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/60948c03-280f-50fe-8fbf-45254104447f

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mark Sebastian Matthews**. Human view: https://whiteintel.dev/entity/5dee6ebe-0aac-5f80-be7e-9d280a5cd435 · Structured JSON: https://whiteintel.dev/api/public/dossier/5dee6ebe-0aac-5f80-be7e-9d280a5cd435._

_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"._