---
title: "Emma Jayne Mason — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4a387494-3d0e-4cc9-a6ab-7f7361316b6c
json: https://whiteintel.dev/api/public/dossier/4a387494-3d0e-4cc9-a6ab-7f7361316b6c
identifier: psc:1JdjQ4fmOrdY7nPJO1VnYXD-uhU
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Emma Jayne Mason

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:1JdjQ4fmOrdY7nPJO1VnYXD-uhU`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4a387494-3d0e-4cc9-a6ab-7f7361316b6c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4a387494-3d0e-4cc9-a6ab-7f7361316b6c  

## Ownership & control

### Holdings / subsidiaries

- **M29 INVESTMENTS LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f65b9b55-b4b1-55df-a354-a3f23d759e1d

## 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 **Emma Jayne Mason** — https://whiteintel.dev/entity/4a387494-3d0e-4cc9-a6ab-7f7361316b6c · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Emma Jayne Mason**. Human view: https://whiteintel.dev/entity/4a387494-3d0e-4cc9-a6ab-7f7361316b6c · Structured JSON: https://whiteintel.dev/api/public/dossier/4a387494-3d0e-4cc9-a6ab-7f7361316b6c._

_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"._