---
title: "KEYSTONE HOLDING LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3b75a048-16dc-5aec-b934-13fa691977a3
json: https://whiteintel.dev/api/public/dossier/3b75a048-16dc-5aec-b934-13fa691977a3
identifier: oo:GB-COH-NI617517
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# KEYSTONE HOLDING LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-NI617517`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3b75a048-16dc-5aec-b934-13fa691977a3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3b75a048-16dc-5aec-b934-13fa691977a3  

## Ownership & control

### Owners / controllers

- **Mr Sean Plunkett Coyle** (beneficial owner) — 100% — https://whiteintel.dev/entity/1817058d-d75b-5409-a683-0d475ef11c0a
- **Mr Sean Plunkett Coyle** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a0035094-edaf-4df7-ac32-ae01bb6c17b1
- **JJPO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c0644536-4f9e-581e-976d-4078ace460b4

### Holdings / subsidiaries

- **KEYFIX LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/88b0cc67-d4cf-5ef9-9f3f-725b64b3f791
- **STOCKGAP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/a7fe6907-88b9-5e45-bbfb-6066c926dc92
- **KEYSTONE LINTELS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/cf2c3f33-cfc3-59e6-bbda-ced4ea06f359
- **OAK HEIGHTS COMPANY LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/df94d225-6498-51c1-b375-087883f0d1bd
- **KGSS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2378399f-21fd-5b72-ac43-3a471b40ad99

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

A **14-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:** `NI617517`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2013-03-25
- **Registered office:** Ballyreagh Industrial Estate, Sandholes Road, Cookstown, BT80 9DG
- **SIC:** 70100

### Officers

- COYLE, Owen Michael — director · Northern Irish · appointed 2021-03-15
- COYLE, Sean Robert — director · Irish · appointed 2021-03-15
- DUFFIN, John Patrick — director · Irish · appointed 2013-07-08
- KELLY, Eithne Margaret — director · Northern Irish · appointed 2013-07-08
- MCFARLAND, Derrick — director · British · appointed 2013-07-08
- COYLE, Sean Plunkett — director · British · appointed 2013-03-25 · resigned 2021-03-15
- O'CALLAGHAN, Gerard Austin — director · Irish · appointed 2013-07-08 · resigned 2015-12-31

### Beneficial owners (Persons with Significant Control)

- [Jjpo Ltd](https://whiteintel.dev/entity/c0644536-4f9e-581e-976d-4078ace460b4) — 75–100% shares · corporate PSC · Northern Ireland — since 2022-04-20
- Mr Sean Plunkett Coyle — 75–100% shares · individual PSC — ceased 2022-04-20

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/NI617517
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/NI617517

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **KEYSTONE HOLDING LTD** — https://whiteintel.dev/entity/3b75a048-16dc-5aec-b934-13fa691977a3 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **KEYSTONE HOLDING LTD**. Human view: https://whiteintel.dev/entity/3b75a048-16dc-5aec-b934-13fa691977a3 · Structured JSON: https://whiteintel.dev/api/public/dossier/3b75a048-16dc-5aec-b934-13fa691977a3._

_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"._