---
title: "QUARTERMAINE LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b
json: https://whiteintel.dev/api/public/dossier/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b
identifier: oo:GB-COH-12888588
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# QUARTERMAINE LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12888588`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b  

## Ownership & control

### Owners / controllers

- **Jonathan Murray Thoday** (beneficial owner) — 50% — https://whiteintel.dev/entity/56367a41-88ff-5a7e-b425-d6dafcfb9661
- **Leanne Lulla Newman** (beneficial owner) — 50% — https://whiteintel.dev/entity/32cdcc0b-4629-52bb-9598-cd375dc27a72
- **Leanne Lulla Newman** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ea0c89bd-1eb8-4a4d-b823-9b154e4d842a
- **Jonathan Murray Thoday** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/5943197a-1ad3-4289-8d25-0923c428b8a0

### 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:** `12888588`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-09-18
- **Registered office:** 71 Queen Victoria Street, London, EC4V 4BE, United Kingdom
- **SIC:** 41100

### Officers

- NEWMAN, Leanne Lulla — director · British · appointed 2020-09-18
- THODAY, Jonathan Murray — director · British · appointed 2020-09-18

### Beneficial owners (Persons with Significant Control)

- Jonathan Murray Thoday — 25–50% shares · individual PSC · United Kingdom — since 2020-09-18
- Leanne Lulla Newman — 25–50% shares · individual PSC · United Kingdom — since 2020-09-18

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12888588
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12888588

## 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 **QUARTERMAINE LTD** — https://whiteintel.dev/entity/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **QUARTERMAINE LTD**. Human view: https://whiteintel.dev/entity/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b · Structured JSON: https://whiteintel.dev/api/public/dossier/5a3d9cdf-ca11-5cb6-b471-d147a8d3bc9b._

_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"._