---
title: "Helen Marie Tanner — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6
json: https://whiteintel.dev/api/public/dossier/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6
identifier: psc:8C_BuVLZzFlK4YdSPUghH8YVdMs
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Helen Marie Tanner

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:8C_BuVLZzFlK4YdSPUghH8YVdMs`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6  

## Ownership & control

### Holdings / subsidiaries

- **DATA CUBED LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2afe2581-7abb-5dbc-b12d-5448a56765be

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Helen Marie Tanner**. Human view: https://whiteintel.dev/entity/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6 · Structured JSON: https://whiteintel.dev/api/public/dossier/4d2a2c8e-c2cc-4826-aff7-c6451f2a7df6._

_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"._