---
title: "Mr Ryszard Grzegorz Buk — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91
json: https://whiteintel.dev/api/public/dossier/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91
identifier: oo-person:GB-COH-PER-13119986-_opxNARSiQ4TvKrnVdZomecglIA
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Ryszard Grzegorz Buk

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo-person:GB-COH-PER-13119986-_opxNARSiQ4TvKrnVdZomecglIA`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91  

## Ownership & control

### Holdings / subsidiaries

- **MATRIX PHYSIO HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/46c5c55b-bedd-5bdc-849a-cd5db4d4194b

## Provenance

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

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Ryszard Grzegorz Buk**. Human view: https://whiteintel.dev/entity/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91 · Structured JSON: https://whiteintel.dev/api/public/dossier/4d64c0fd-4ec1-5f2b-a33f-a0be4b77fb91._

_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"._