---
title: "Mr Jon Madgett — Ownership Dossier"
canonical: https://whiteintel.dev/entity/040fcb5d-7cea-58ff-b7bc-9217705f94cd
json: https://whiteintel.dev/api/public/dossier/040fcb5d-7cea-58ff-b7bc-9217705f94cd
identifier: oo-person:GB-COH-PER-04440435-B5iStoSc9ge-nGg70VKR7XLaZxo
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Jon Madgett

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-04440435-B5iStoSc9ge-nGg70VKR7XLaZxo`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/040fcb5d-7cea-58ff-b7bc-9217705f94cd  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/040fcb5d-7cea-58ff-b7bc-9217705f94cd  

## Ownership & control

### Holdings / subsidiaries

- **MAVALON LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/a7ac0997-98c7-577d-b6ca-d12f19975365

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Jon Madgett**. Human view: https://whiteintel.dev/entity/040fcb5d-7cea-58ff-b7bc-9217705f94cd · Structured JSON: https://whiteintel.dev/api/public/dossier/040fcb5d-7cea-58ff-b7bc-9217705f94cd._

_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"._