---
title: "Ms Joyce Marie Sumera — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ea36bcd0-e6a0-4ad7-9360-139b047fad1a
json: https://whiteintel.dev/api/public/dossier/ea36bcd0-e6a0-4ad7-9360-139b047fad1a
identifier: psc:Hk-4p2lAtF7esdDOJkfIdS0bgFI
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Ms Joyce Marie Sumera

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:Hk-4p2lAtF7esdDOJkfIdS0bgFI`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ea36bcd0-e6a0-4ad7-9360-139b047fad1a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ea36bcd0-e6a0-4ad7-9360-139b047fad1a  

## Ownership & control

### Holdings / subsidiaries

- **GAMSTON LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/fbdeecb0-2bc6-58bd-9486-b81b267a6c58

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Ms Joyce Marie Sumera**. Human view: https://whiteintel.dev/entity/ea36bcd0-e6a0-4ad7-9360-139b047fad1a · Structured JSON: https://whiteintel.dev/api/public/dossier/ea36bcd0-e6a0-4ad7-9360-139b047fad1a._

_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"._