---
title: "John Williamson — Ownership Dossier"
canonical: https://whiteintel.dev/entity/c391b2bb-5299-5a73-a8ff-87ee67e7fb05
json: https://whiteintel.dev/api/public/dossier/c391b2bb-5299-5a73-a8ff-87ee67e7fb05
identifier: oo-person:GB-COH-PER-OE013701-vWOI6A3-o6lf2h4-MRrx3-rtBgc
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# John Williamson

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-OE013701-vWOI6A3-o6lf2h4-MRrx3-rtBgc`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/c391b2bb-5299-5a73-a8ff-87ee67e7fb05  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/c391b2bb-5299-5a73-a8ff-87ee67e7fb05  

## Ownership & control

### Holdings / subsidiaries

- **BERKELEY DEVELOPMENT COMPANY LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/8696a6b8-f7b4-510d-b693-610dae9c8582

## Sanctions / PEP screening (name match — unverified)

These are possible matches **by name only** — not confirmed as the same person/entity. Verify identity (date of birth, nationality, ID) before relying on this.

- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/673c9144-0861-5801-a552-c523767169ce)
- **PEP** — [Name matches a screened record — verify against the cited sources](https://whiteintel.dev/entity/c38d4fd9-6d08-401d-8b68-64ac9d11a5cb)

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **John Williamson**. Human view: https://whiteintel.dev/entity/c391b2bb-5299-5a73-a8ff-87ee67e7fb05 · Structured JSON: https://whiteintel.dev/api/public/dossier/c391b2bb-5299-5a73-a8ff-87ee67e7fb05._

_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"._