---
title: "JMP ESTATES LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a57b45db-de7d-5e98-8a3c-507e021bce29
json: https://whiteintel.dev/api/public/dossier/a57b45db-de7d-5e98-8a3c-507e021bce29
identifier: oo:GB-COH-12276729
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# JMP ESTATES LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-12276729`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a57b45db-de7d-5e98-8a3c-507e021bce29  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a57b45db-de7d-5e98-8a3c-507e021bce29  

## Ownership & control

### Owners / controllers

- **Mr John Porthouse** (beneficial owner) — 50% — https://whiteintel.dev/entity/20daf508-d5c8-5ec4-88e3-654cb2956bb4
- **Mr Marcus Dominic Porthouse** (beneficial owner) — 50% — https://whiteintel.dev/entity/e94fcd76-5265-51e3-9fd1-49fac54eec04
- **Mr Marcus Dominic Porthouse** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/7587bfe0-c48e-4adb-a6ce-44a2defbae35
- **Mr John Porthouse** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/d768b94c-d6c0-44d8-8f5f-58526d87e8db

### 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:** `12276729`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-10-23
- **Registered office:** 63 Sanderson Villas, Gateshead, NE8 3BU, England
- **SIC:** 41100, 68209

### Officers

- PORTHOUSE, Marcus Dominic — secretary · appointed 2025-02-20
- PORTHOUSE, Marcus Dominic — director · British · appointed 2019-10-28
- PORTHOUSE, John — director · British · appointed 2019-10-23 · resigned 2025-02-19

### Beneficial owners (Persons with Significant Control)

- Mr Marcus Dominic Porthouse — 25–50% shares · individual PSC · England — since 2019-10-23
- Mr John Porthouse — 25–50% shares · individual PSC · England — ceased 2025-02-19

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12276729
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12276729

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **JMP ESTATES LTD**. Human view: https://whiteintel.dev/entity/a57b45db-de7d-5e98-8a3c-507e021bce29 · Structured JSON: https://whiteintel.dev/api/public/dossier/a57b45db-de7d-5e98-8a3c-507e021bce29._

_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"._