---
title: "Mr John Spencer Porter — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a
json: https://whiteintel.dev/api/public/dossier/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a
identifier: oo-person:GB-COH-PER-08292997-S0G1Fg07k4gAXDiNG6REsZh3KW4
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr John Spencer Porter

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-08292997-S0G1Fg07k4gAXDiNG6REsZh3KW4`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a  

## Ownership & control

### Holdings / subsidiaries

- **PORTER FAMILY LTD** (beneficial owner) — 50% — https://whiteintel.dev/entity/4b7bd0e4-06ea-50dc-858a-b314fd279ddf

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr John Spencer Porter**. Human view: https://whiteintel.dev/entity/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a · Structured JSON: https://whiteintel.dev/api/public/dossier/ef2fd50b-a50c-5dfd-ae33-2e02d47a963a._

_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"._