---
title: "Mr Sia Halberstam — Ownership Dossier"
canonical: https://whiteintel.dev/entity/cf8525fb-bf17-586f-a3a3-47fc071ea570
json: https://whiteintel.dev/api/public/dossier/cf8525fb-bf17-586f-a3a3-47fc071ea570
identifier: oo-person:GB-COH-PER-16219567-kXdCMYiWSjIMt3FxBdNLNPeD708
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Sia Halberstam

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `oo-person:GB-COH-PER-16219567-kXdCMYiWSjIMt3FxBdNLNPeD708`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/cf8525fb-bf17-586f-a3a3-47fc071ea570  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/cf8525fb-bf17-586f-a3a3-47fc071ea570  

## Ownership & control

### Holdings / subsidiaries

- **GOLDWELL ESTATES LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/50a0cb23-341c-5311-b370-e6237b8a358c

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Sia Halberstam**. Human view: https://whiteintel.dev/entity/cf8525fb-bf17-586f-a3a3-47fc071ea570 · Structured JSON: https://whiteintel.dev/api/public/dossier/cf8525fb-bf17-586f-a3a3-47fc071ea570._

_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"._