---
title: "ACE ALLOY DIAMOND CUTTING LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ab5ea31f-1401-54fb-ae72-253fcfbcec5f
json: https://whiteintel.dev/api/public/dossier/ab5ea31f-1401-54fb-ae72-253fcfbcec5f
identifier: oo:GB-COH-11923090
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ACE ALLOY DIAMOND CUTTING LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-11923090`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ab5ea31f-1401-54fb-ae72-253fcfbcec5f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ab5ea31f-1401-54fb-ae72-253fcfbcec5f  

## Ownership & control

### Owners / controllers

- **Mr Jason Howard Maybank** (beneficial owner) — 50% — https://whiteintel.dev/entity/3a313bde-c255-588a-ac99-3b19161c7d33
- **Mr Matthew Ryan Walsh** (beneficial owner) — 50% — https://whiteintel.dev/entity/7401c897-ddba-583f-b0e8-398677902190
- **Mr Jason Howard Maybank** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/01389f01-a390-4e96-802f-722c224b5b12
- **Mr Matthew Ryan Walsh** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e9c57163-bbc1-4d8d-8b9e-dde6f51d4627

### 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:** `11923090`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-04-03
- **Registered office:** 104 Walter Road, Swansea, SA1 5QF, Wales
- **SIC:** 45200

### Officers

- MAYBANK, Jason Howard — director · British · appointed 2019-04-03
- WALSH, Matthew Ryan — director · British · appointed 2019-04-03 · resigned 2020-06-15

### Beneficial owners (Persons with Significant Control)

- Mr Jason Howard Maybank — 25–50% shares · individual PSC · Wales — since 2019-04-03
- Mr Matthew Ryan Walsh — 25–50% shares · individual PSC · Wales — ceased 2020-06-15

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11923090
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11923090

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ACE ALLOY DIAMOND CUTTING LIMITED**. Human view: https://whiteintel.dev/entity/ab5ea31f-1401-54fb-ae72-253fcfbcec5f · Structured JSON: https://whiteintel.dev/api/public/dossier/ab5ea31f-1401-54fb-ae72-253fcfbcec5f._

_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"._