---
title: "Mr Sebastian Matejek — Ownership Dossier"
canonical: https://whiteintel.dev/entity/baf128d5-e48d-4744-be78-c754423f68fc
json: https://whiteintel.dev/api/public/dossier/baf128d5-e48d-4744-be78-c754423f68fc
identifier: psc:SkiXQIWEo7mTkyXl7RigGVMKNfU
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Sebastian Matejek

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:SkiXQIWEo7mTkyXl7RigGVMKNfU`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/baf128d5-e48d-4744-be78-c754423f68fc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/baf128d5-e48d-4744-be78-c754423f68fc  

## Ownership & control

### Holdings / subsidiaries

- **BAU UND ISOLIERUNG LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/247b9c19-f77d-5d1b-987d-28ce84db00a0

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Sebastian Matejek**. Human view: https://whiteintel.dev/entity/baf128d5-e48d-4744-be78-c754423f68fc · Structured JSON: https://whiteintel.dev/api/public/dossier/baf128d5-e48d-4744-be78-c754423f68fc._

_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"._