---
title: "MYRTOAN LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc
json: https://whiteintel.dev/api/public/dossier/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc
identifier: oo:GB-COH-15429561
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MYRTOAN LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-15429561`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc  

## Ownership & control

### Owners / controllers

- **Mr James Matthew Griffiths** (beneficial owner) — 100% — https://whiteintel.dev/entity/a38ebcf7-46ac-51cd-a228-d7a60c418125
- **Ms Helen Costas** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/87ca4560-353d-4ef3-8877-3ff04a839dca
- **Mr James Matthew Griffiths** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/bbe50e08-6c79-4177-abaa-9371d5f38161

### 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:** `15429561`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2024-01-22
- **Registered office:** Flat 21 Dean Clarke House, Southernhay East, Exeter, EX1 1AP, England
- **SIC:** 47799

### Officers

- COSTAS, Helen — director · British · appointed 2025-03-10
- GRIFFITHS, James Matthew — director · British · appointed 2024-01-22 · resigned 2025-03-10

### Beneficial owners (Persons with Significant Control)

- Ms Helen Costas — 75–100% shares · individual PSC · England — since 2025-03-10
- Mr James Matthew Griffiths — 75–100% shares · individual PSC · England — ceased 2025-03-10

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15429561
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15429561

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MYRTOAN LIMITED**. Human view: https://whiteintel.dev/entity/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc · Structured JSON: https://whiteintel.dev/api/public/dossier/8bb6ac42-76bd-5ffb-a042-7c61cb73ebbc._

_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"._