---
title: "DOOR SYSTEM INSTALLATIONS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9c67e486-e32d-500a-92f3-9a6d2c33a7b1
json: https://whiteintel.dev/api/public/dossier/9c67e486-e32d-500a-92f3-9a6d2c33a7b1
identifier: oo:GB-COH-07043163
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DOOR SYSTEM INSTALLATIONS LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-07043163`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9c67e486-e32d-500a-92f3-9a6d2c33a7b1  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9c67e486-e32d-500a-92f3-9a6d2c33a7b1  

## Ownership & control

### Owners / controllers

- **Miss Erin Maldzinski** (beneficial owner) — 50% — https://whiteintel.dev/entity/e659dcf9-fe9e-5166-96de-a6042b24714a
- **J. MANNY LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/64f316f7-1b67-506a-a582-7d923a32654a
- **Mr William Maldzinski** (beneficial owner) — 50% — https://whiteintel.dev/entity/5fbcd62d-1def-5705-a457-656d541b12aa
- **J. MANNY LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/64f316f7-1b67-506a-a582-7d923a32654a
- **PH7 ENGINEERING LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/9d5f63ad-ccfd-590e-8647-357317b9b543
- **Miss Erin Maldzinski** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/2e6a0c2b-f458-4f74-8047-6eda3c172a37
- **Mr William Maldzinski** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f3bceb60-3d75-4eab-9798-325fc0fbcafc

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

A **40-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:** `07043163`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2009-10-14
- **Registered office:** C/O Bevan Buckland Llp Ground Floor, Cardigan House, Castle Court, Swansea Enterprise Park, Swansea, SA7 9LA, Wales
- **SIC:** 43290

### Officers

- MALDZINSKI, Erin — director · British · appointed 2011-10-21
- MANNY, James Alexander — director · British · appointed 2022-03-31
- THOMAS, Derek Keith — director · British · appointed 2022-03-31
- MALDZINSKI, William — director · British · appointed 2011-10-21 · resigned 2022-03-31
- RAINE, Steven Richard — director · British · appointed 2009-10-14 · resigned 2014-05-31

### Beneficial owners (Persons with Significant Control)

- [Ph7 Engineering Limited](https://whiteintel.dev/entity/9d5f63ad-ccfd-590e-8647-357317b9b543) — 25–50% shares · corporate PSC · Wales — since 2025-11-03
- Miss Erin Maldzinski — 25–50% shares · individual PSC · Wales — since 2018-01-02
- [J. Manny Limited](https://whiteintel.dev/entity/64f316f7-1b67-506a-a582-7d923a32654a) — 25–50% shares · corporate PSC · Wales — ceased 2025-11-03
- Mr William Maldzinski — 25–50% shares · individual PSC · England — ceased 2022-03-31

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/07043163
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/07043163

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DOOR SYSTEM INSTALLATIONS LTD**. Human view: https://whiteintel.dev/entity/9c67e486-e32d-500a-92f3-9a6d2c33a7b1 · Structured JSON: https://whiteintel.dev/api/public/dossier/9c67e486-e32d-500a-92f3-9a6d2c33a7b1._

_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"._