---
title: "HAUSTECHNIK ZILKEN LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/625962e7-a12e-557b-9c64-67e4dfaa6bac
json: https://whiteintel.dev/api/public/dossier/625962e7-a12e-557b-9c64-67e4dfaa6bac
identifier: oo:GB-COH-05843184
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HAUSTECHNIK ZILKEN LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-05843184`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/625962e7-a12e-557b-9c64-67e4dfaa6bac  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/625962e7-a12e-557b-9c64-67e4dfaa6bac  

## Ownership & control

### Owners / controllers

- **Mr. Marko Zilken** (beneficial owner) — 100% — https://whiteintel.dev/entity/3bd396f7-2b5a-5760-b2b8-965cbe457c04
- **Ms Sandra Mazi** (beneficial owner) — 50% — https://whiteintel.dev/entity/8dd659d7-2110-56e8-8540-1588a69eb2d0
- **Mrs Ursula Gertruth Rockstroh** (beneficial owner) — 50% — https://whiteintel.dev/entity/a009085d-f108-562b-a701-9b2c2d9ccc18
- **Ms Sandra Mazi** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/216681b9-1bdc-4e86-8f94-dfbf21f678b2
- **Mrs Ursula Gertruth Rockstroh** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/cd1c0490-8c64-42ee-a87f-7a19899f87e3
- **Mr. Marko Zilken** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7c356193-b15c-4d3d-a18b-9a9d75169e92

### UBO chain (walk to the ultimate owner)

A **6-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `05843184`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2006-06-12
- **Registered office:** The Picasso Building, Caldervale Road, Wakefield, West Yorkshire, WF1 5PF, United Kingdom
- **SIC:** 74990

### Officers

- ZILKEN, Marko — director · German · appointed 2006-06-12
- L4 YOU CO SEC LTD — corporate secretary · appointed 2006-06-12 · resigned 2020-11-09
- [SL24 LTD.](https://whiteintel.dev/entity/ddde9ff1-c452-5813-9fde-61595d77a0d9) — corporate secretary · appointed 2020-11-09 · resigned 2025-10-22

### Beneficial owners (Persons with Significant Control)

- Mr. Marko Zilken — 75–100% shares · individual PSC · Germany — since 2022-10-12
- Ms Sandra Mazi — 25–50% shares · individual PSC · Germany — ceased 2022-10-12
- Mrs Ursula Gertruth Rockstroh — 25–50% shares · individual PSC · Germany — ceased 2022-10-12

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/05843184
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/05843184

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HAUSTECHNIK ZILKEN LTD**. Human view: https://whiteintel.dev/entity/625962e7-a12e-557b-9c64-67e4dfaa6bac · Structured JSON: https://whiteintel.dev/api/public/dossier/625962e7-a12e-557b-9c64-67e4dfaa6bac._

_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"._