---
title: "PORTSMERE CONSTRUCTION LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/108aaab7-a2c5-5578-9fc7-e65253ca8c0b
json: https://whiteintel.dev/api/public/dossier/108aaab7-a2c5-5578-9fc7-e65253ca8c0b
identifier: oo:GB-COH-10524315
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PORTSMERE CONSTRUCTION LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-10524315`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/108aaab7-a2c5-5578-9fc7-e65253ca8c0b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/108aaab7-a2c5-5578-9fc7-e65253ca8c0b  

## Ownership & control

### Owners / controllers

- **Mr Mark Christopher Whittall** (beneficial owner) — 100% — https://whiteintel.dev/entity/7592661d-2d17-5bed-a9e5-3caf70e29759
- **Iain Buck** (beneficial owner) — 50% — https://whiteintel.dev/entity/b6cccdc8-b9d6-5550-9a93-13e89f0778a4
- **Mr Mark Christopher Whittall** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e55451e1-2a6d-413b-a6d4-4ffcdcba5ff0
- **Iain Buck** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8cc22114-fd8f-4f7c-86bd-b78c310283f3
- **Mrs Sarah Alison Whittall** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b78b57f3-2409-4ccf-8dd1-7f0547e2d2b5

### Holdings / subsidiaries

- **VIRTUE CONSTRUCTION LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/2f081310-6c49-55d9-b02f-8772821cea68
- **VIRTUE CONSTRUCTION LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2f081310-6c49-55d9-b02f-8772821cea68

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

A **5-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:** `10524315`
- **Status:** liquidation
- **Type:** ltd
- **Incorporated:** 2016-12-14
- **Registered office:** Suite 500 Unit 2, 94a Wycliffe Road, Northampton, NN1 5JF
- **SIC:** 41202

### Officers

- WHITTALL, Sarah Alison — secretary · appointed 2016-12-14
- WHITTALL, Mark Christopher — director · British · appointed 2016-12-14
- WHITTALL, Sarah Alison — director · British · appointed 2018-06-12
- BUCK, Iain Thomas Charles — director · British · appointed 2018-02-26 · resigned 2018-05-09

### Beneficial owners (Persons with Significant Control)

- Mrs Sarah Alison Whittall — 25–50% shares · individual PSC — since 2019-04-02
- Mr Mark Christopher Whittall — 25–50% shares · individual PSC — since 2016-12-14
- Iain Buck — 25–50% shares · individual PSC · England — ceased 2019-03-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10524315
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10524315

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PORTSMERE CONSTRUCTION LIMITED**. Human view: https://whiteintel.dev/entity/108aaab7-a2c5-5578-9fc7-e65253ca8c0b · Structured JSON: https://whiteintel.dev/api/public/dossier/108aaab7-a2c5-5578-9fc7-e65253ca8c0b._

_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"._