---
title: "DAVID MASON ECO DESIGN LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f2c3bc67-2a41-5f14-9481-098ea33aaccb
json: https://whiteintel.dev/api/public/dossier/f2c3bc67-2a41-5f14-9481-098ea33aaccb
identifier: oo:GB-COH-09486299
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DAVID MASON ECO DESIGN LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-09486299`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f2c3bc67-2a41-5f14-9481-098ea33aaccb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f2c3bc67-2a41-5f14-9481-098ea33aaccb  

## Ownership & control

### Owners / controllers

- **Mr David Mcdowall Mason** (beneficial owner) — 100% — https://whiteintel.dev/entity/5712614c-c467-5021-b10e-ff2a0820a01b
- **Mr David Mcdowall Mason** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/2dda9571-940f-49cf-a0f9-580544c581ac
- **Miss Susan Marie Stringfellow** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/9e3a593b-ea61-43ad-8a75-782ab8d74a83

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

A **3-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:** `09486299`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2015-03-12
- **Registered office:** 19 Blackstock Close, Sheffield, S14 1AE, England
- **SIC:** 71111

### Officers

- MASON, David Mcdowall — director · British · appointed 2015-03-12
- STRINGFELLOW, Susan Marie — director · British · appointed 2022-09-30

### Beneficial owners (Persons with Significant Control)

- Miss Susan Marie Stringfellow — 25–50% shares · individual PSC · England — since 2022-10-01
- Mr David Mcdowall Mason — 25–50% shares · individual PSC · England — since 2016-04-06

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/09486299
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/09486299

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DAVID MASON ECO DESIGN LTD**. Human view: https://whiteintel.dev/entity/f2c3bc67-2a41-5f14-9481-098ea33aaccb · Structured JSON: https://whiteintel.dev/api/public/dossier/f2c3bc67-2a41-5f14-9481-098ea33aaccb._

_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"._