---
title: "ROCKSTONE HOLDINGS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/82b4626f-5daa-524c-83b7-64c418dc8257
json: https://whiteintel.dev/api/public/dossier/82b4626f-5daa-524c-83b7-64c418dc8257
identifier: oo:GB-COH-12217270
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ROCKSTONE HOLDINGS LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12217270`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/82b4626f-5daa-524c-83b7-64c418dc8257  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/82b4626f-5daa-524c-83b7-64c418dc8257  

## Ownership & control

### Owners / controllers

- **Mrs Joanna Rose Angela Layman** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/70b859f5-da87-4ee1-b380-406ac8f4d06b
- **Mrs Joanna Rose Angela Layman** (beneficial owner) — 50% — https://whiteintel.dev/entity/8a342a4c-3afb-5812-af8e-d9c88af9ad1c
- **Guy Robert Layman** (beneficial owner) — 50% — https://whiteintel.dev/entity/45dd8ba1-2b5e-5f8b-b071-d7f7cd1cd082
- **Guy Robert Layman** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/78c18d91-f5b7-4295-8a09-a4696003abe0

### 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:** `12217270`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-09-20
- **Registered office:** Suite B, 745 Ampress Lane, Lymington, SO41 8LW, United Kingdom
- **SIC:** 99999

### Beneficial owners (Persons with Significant Control)

- Mrs Joanna Rose Angela Layman — 25–50% shares · individual PSC · United Kingdom — since 2019-09-20
- Guy Robert Layman — 25–50% shares · individual PSC · United Kingdom — since 2019-09-20

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12217270
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12217270

## 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 **ROCKSTONE HOLDINGS LTD** — https://whiteintel.dev/entity/82b4626f-5daa-524c-83b7-64c418dc8257 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ROCKSTONE HOLDINGS LTD**. Human view: https://whiteintel.dev/entity/82b4626f-5daa-524c-83b7-64c418dc8257 · Structured JSON: https://whiteintel.dev/api/public/dossier/82b4626f-5daa-524c-83b7-64c418dc8257._

_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"._