---
title: "MASON CLARK HOLDINGS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c
json: https://whiteintel.dev/api/public/dossier/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c
identifier: oo:GB-COH-07195678
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MASON CLARK HOLDINGS LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-07195678`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c  

## Ownership & control

### Owners / controllers

- **Mr John Mason Clark** (beneficial owner) — 50% — https://whiteintel.dev/entity/14050cf0-ad90-5ea4-9b38-fb6e5244057a
- **MASON CLARK GROUP LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/765019be-2290-5bb8-bb76-ffa77a8c89c6
- **Mr John Mason Clark** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/962fe2a0-409f-46d6-bdcb-c5e6cfbd7184
- **MASON CLARK GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/765019be-2290-5bb8-bb76-ffa77a8c89c6
- **MASON CLARK GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/765019be-2290-5bb8-bb76-ffa77a8c89c6
- **Mr Andrew John Thompson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/c185a857-e77a-41ba-ba96-765e03a871e9
- **Mr Ian Kenneth Cook** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/d6f68ca5-5502-4696-a001-d371b18e5c66

### Holdings / subsidiaries

- **MASON CLARK ASSOCIATES LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/6a5c27ee-8bdc-537a-9975-c3a07f19be71
- **DOSSORMCA, CONSULTING ENGINEERS AND SURVEYORS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/7a232666-a41b-55b6-b94c-5010dc7abb91
- **DOSSORMCA, CONSULTING ENGINEERS AND SURVEYORS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7a232666-a41b-55b6-b94c-5010dc7abb91
- **MASON CLARK ASSOCIATES LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/6a5c27ee-8bdc-537a-9975-c3a07f19be71

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

A **13-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:** `07195678`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2010-03-19
- **Registered office:** Church House, 44 Newland Park, Hull, East Yorkshire, HU5 2DW, United Kingdom
- **SIC:** 70100

## Financials (Companies House accounts)

| Figure | 2025-10-31 |
|---|---:|
| Shareholder funds | £350,000 |
| Fixed assets | £773,323 |
| Current assets | £50,000 |
| Employees | 0 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- COOK, Ian Kenneth — director · British · appointed 2010-06-21
- PEGRAM, Gerard Francis — director · British · appointed 2015-10-01
- THOMPSON, Andrew John — director · British · appointed 2010-06-21
- CLARK, John Mason — director · British · appointed 2010-03-19 · resigned 2017-11-01
- HELME, Graham Lister — director · British · appointed 2010-06-21 · resigned 2013-02-01

### Beneficial owners (Persons with Significant Control)

- Mr Andrew John Thompson — 25–50% shares · individual PSC · United Kingdom — since 2023-11-10
- Mr Ian Kenneth Cook — 25–50% shares · individual PSC · United Kingdom — since 2023-11-10
- [Mason Clark Group Limited](https://whiteintel.dev/entity/765019be-2290-5bb8-bb76-ffa77a8c89c6) — 75–100% shares · corporate PSC · England — ceased 2023-11-10
- [Mason Clark Group Limited](https://whiteintel.dev/entity/765019be-2290-5bb8-bb76-ffa77a8c89c6) — 75–100% shares · corporate PSC · United Kingdom — ceased 2023-11-10
- Mr John Mason Clark — 25–50% shares · individual PSC · United Kingdom — ceased 2017-11-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/07195678
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/07195678/filing-history
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/07195678

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MASON CLARK HOLDINGS LIMITED**. Human view: https://whiteintel.dev/entity/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c · Structured JSON: https://whiteintel.dev/api/public/dossier/7ae54fe2-ccda-5233-a402-ba9cbb97ce7c._

_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"._