---
title: "M.D.M. SYSTEMS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a7598039-0607-566f-b2fa-fdba79bf7680
json: https://whiteintel.dev/api/public/dossier/a7598039-0607-566f-b2fa-fdba79bf7680
identifier: oo:GB-COH-03660620
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# M.D.M. SYSTEMS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03660620`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a7598039-0607-566f-b2fa-fdba79bf7680  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a7598039-0607-566f-b2fa-fdba79bf7680  

## Ownership & control

### Owners / controllers

- **Michael David Jelfs** (beneficial owner) — 50% — https://whiteintel.dev/entity/8c141a7e-45fd-5d44-8881-9e5c950e4347
- **Debra Leigh Jelfs** (beneficial owner) — 50% — https://whiteintel.dev/entity/52b7cf9c-a269-5600-93bd-4be0fc0b9dfe
- **Debra Leigh Jelfs** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/49a9c768-6b52-443e-9f23-3eed870cd5db
- **Michael David Jelfs** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a8cb2086-ef3a-4bed-9659-c808ac3f1d94

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

A **4-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:** `03660620`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1998-11-03
- **Registered office:** 9 Hadleigh Croft, Minworth, Sutton Coldfield, West Midlands, B76 1XF, England
- **SIC:** 62090

### Officers

- JELFS, Debra Leigh — secretary · British · appointed 1998-11-03
- JELFS, Debra Leigh — director · British · appointed 1998-11-03
- JELFS, Michael David — director · British · appointed 1998-11-03
- KEY LEGAL SERVICES (SECRETARIAL) LIMITED — corporate nominee secretary · appointed 1998-11-03 · resigned 1998-11-03
- KEY LEGAL SERVICES (NOMINEES) LIMITED — corporate nominee director · appointed 1998-11-03 · resigned 1998-11-03

### Beneficial owners (Persons with Significant Control)

- Debra Leigh Jelfs — 25–50% shares · individual PSC · England — since 2016-04-06
- Michael David Jelfs — 25–50% shares · individual PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03660620
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03660620

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **M.D.M. SYSTEMS LIMITED**. Human view: https://whiteintel.dev/entity/a7598039-0607-566f-b2fa-fdba79bf7680 · Structured JSON: https://whiteintel.dev/api/public/dossier/a7598039-0607-566f-b2fa-fdba79bf7680._

_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"._