---
title: "Mr Geoffrey Mark Manterfield — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e87006e3-e3a3-43d0-b1e6-debe9e65eed4
json: https://whiteintel.dev/api/public/dossier/e87006e3-e3a3-43d0-b1e6-debe9e65eed4
identifier: psc:j56YeMOsIL_cgVUVSOjjCwf1k04
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Geoffrey Mark Manterfield

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:j56YeMOsIL_cgVUVSOjjCwf1k04`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e87006e3-e3a3-43d0-b1e6-debe9e65eed4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e87006e3-e3a3-43d0-b1e6-debe9e65eed4  

## Ownership & control

### Holdings / subsidiaries

- **GMM TRAINING & DEVELOPMENT LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f196c9b2-dc9c-5450-a8a1-df543009fd21

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Geoffrey Mark Manterfield**. Human view: https://whiteintel.dev/entity/e87006e3-e3a3-43d0-b1e6-debe9e65eed4 · Structured JSON: https://whiteintel.dev/api/public/dossier/e87006e3-e3a3-43d0-b1e6-debe9e65eed4._

_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"._