---
title: "Mr Jan Henning Karkowski — Ownership Dossier"
canonical: https://whiteintel.dev/entity/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a
json: https://whiteintel.dev/api/public/dossier/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a
identifier: psc:rlEzNeSpIauKo9f3ce1gHkA4HHk
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# Mr Jan Henning Karkowski

**Type:** Person  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `psc:rlEzNeSpIauKo9f3ce1gHkA4HHk`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a  

## Ownership & control

### Holdings / subsidiaries

- **MATRIX PARTNERSHIP MANAGEMENT LLP** (beneficial owner) — https://whiteintel.dev/entity/ab3a77fa-ff56-57fa-b816-b9011dd902e9

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **Mr Jan Henning Karkowski** — https://whiteintel.dev/entity/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **Mr Jan Henning Karkowski**. Human view: https://whiteintel.dev/entity/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a · Structured JSON: https://whiteintel.dev/api/public/dossier/04f4eafb-86a1-4dc2-8e3e-f571bd0fbd4a._

_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"._