---
title: "Mrs Sian Catherine Jamison — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fa12d4e2-2571-4502-97d3-b2a01cae28dc
json: https://whiteintel.dev/api/public/dossier/fa12d4e2-2571-4502-97d3-b2a01cae28dc
identifier: psc:3Z7E2vaNHwdT0llVPGOw6OQvnXM
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mrs Sian Catherine Jamison

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:3Z7E2vaNHwdT0llVPGOw6OQvnXM`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fa12d4e2-2571-4502-97d3-b2a01cae28dc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fa12d4e2-2571-4502-97d3-b2a01cae28dc  

## Ownership & control

### Holdings / subsidiaries

- **74 DURNFORD STREET MANAGEMENT COMPANY LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b42792f4-52fa-5b68-9844-a6da394340e7

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mrs Sian Catherine Jamison**. Human view: https://whiteintel.dev/entity/fa12d4e2-2571-4502-97d3-b2a01cae28dc · Structured JSON: https://whiteintel.dev/api/public/dossier/fa12d4e2-2571-4502-97d3-b2a01cae28dc._

_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"._