---
title: "MAMMOTH WINDOWS LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5ed3fece-eac0-5059-b1cf-0d270f18262a
json: https://whiteintel.dev/api/public/dossier/5ed3fece-eac0-5059-b1cf-0d270f18262a
identifier: oo:GB-COH-15622734
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MAMMOTH WINDOWS LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-15622734`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5ed3fece-eac0-5059-b1cf-0d270f18262a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5ed3fece-eac0-5059-b1cf-0d270f18262a  

## Ownership & control

### Owners / controllers

- **Mr Michael Loam Mason** (beneficial owner) — 100% — https://whiteintel.dev/entity/c3827731-a001-574a-b902-23f96ac842f3
- **Mr Michael Loam Mason** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/77a66351-93e9-45b3-b41d-c9722f4bd477

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

1. **Mr Michael Loam Mason** — beneficial owner 100% → *MAMMOTH WINDOWS LTD*
1. **Mr Michael Loam Mason** — beneficial owner 87.5% → *MAMMOTH WINDOWS LTD*

## Company profile (live · UK Companies House)

- **Company number:** `15622734`
- **Status:** dissolved
- **Type:** ltd
- **Incorporated:** 2024-04-06
- **Registered office:** 15 West Street, Stillington, Stockton-On-Tees, TS21 1JU, England
- **SIC:** 43342

### Officers

- MASON, Michael Loam — director · English · appointed 2024-04-06

### Beneficial owners (Persons with Significant Control)

- Mr Michael Loam Mason — 75–100% shares · individual PSC · England — since 2024-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15622734

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MAMMOTH WINDOWS LTD**. Human view: https://whiteintel.dev/entity/5ed3fece-eac0-5059-b1cf-0d270f18262a · Structured JSON: https://whiteintel.dev/api/public/dossier/5ed3fece-eac0-5059-b1cf-0d270f18262a._

_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"._