---
title: "Jan Tancos — Ownership Dossier"
canonical: https://whiteintel.dev/entity/efae0b9f-9f09-4614-822b-cd34fcc9f27d
json: https://whiteintel.dev/api/public/dossier/efae0b9f-9f09-4614-822b-cd34fcc9f27d
identifier: psc:GiwvogdTZbtQxXGSEvtrX6R7Vp0
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Jan Tancos

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:GiwvogdTZbtQxXGSEvtrX6R7Vp0`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/efae0b9f-9f09-4614-822b-cd34fcc9f27d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/efae0b9f-9f09-4614-822b-cd34fcc9f27d  

## Ownership & control

### Holdings / subsidiaries

- **THALASSACASE LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/fb35a138-7b2c-56dc-86c3-4be28e70bdce

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Jan Tancos**. Human view: https://whiteintel.dev/entity/efae0b9f-9f09-4614-822b-cd34fcc9f27d · Structured JSON: https://whiteintel.dev/api/public/dossier/efae0b9f-9f09-4614-822b-cd34fcc9f27d._

_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"._