---
title: "Mr Mariusz Stanislaw Tkacz — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4ca62922-60e2-496a-9716-e41d7f57d4df
json: https://whiteintel.dev/api/public/dossier/4ca62922-60e2-496a-9716-e41d7f57d4df
identifier: psc:5_u0q_BmQysZV7F03Azazu3G2KU
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Mariusz Stanislaw Tkacz

**Type:** Person  
**Jurisdiction:** GB  
**Identifier:** `psc:5_u0q_BmQysZV7F03Azazu3G2KU`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4ca62922-60e2-496a-9716-e41d7f57d4df  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4ca62922-60e2-496a-9716-e41d7f57d4df  

## Ownership & control

### Holdings / subsidiaries

- **SMART ENGINEERING DESIGN LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a20daf69-e3bf-5d93-84a5-0edf9a5e8367

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Mariusz Stanislaw Tkacz**. Human view: https://whiteintel.dev/entity/4ca62922-60e2-496a-9716-e41d7f57d4df · Structured JSON: https://whiteintel.dev/api/public/dossier/4ca62922-60e2-496a-9716-e41d7f57d4df._

_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"._