---
title: "Mr John Mcmahon — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9b1210f3-e421-4815-8df7-eda5530e818c
json: https://whiteintel.dev/api/public/dossier/9b1210f3-e421-4815-8df7-eda5530e818c
identifier: psc:hFUzVb90TYYwH192t4h3dWRXL4I
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Mcmahon

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:hFUzVb90TYYwH192t4h3dWRXL4I`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9b1210f3-e421-4815-8df7-eda5530e818c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9b1210f3-e421-4815-8df7-eda5530e818c  

## Ownership & control

### Holdings / subsidiaries

- **MCMAHON CLAN LTD** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8bd85ae5-d0f4-571c-b0e7-48ce23f7a167

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Mr John Mcmahon** — https://whiteintel.dev/entity/9b1210f3-e421-4815-8df7-eda5530e818c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Mcmahon**. Human view: https://whiteintel.dev/entity/9b1210f3-e421-4815-8df7-eda5530e818c · Structured JSON: https://whiteintel.dev/api/public/dossier/9b1210f3-e421-4815-8df7-eda5530e818c._

_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"._