---
title: "POWERMAIN (HOLDINGS) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/b407a4d0-e7a3-5d1c-8a16-e833920fdd97
json: https://whiteintel.dev/api/public/dossier/b407a4d0-e7a3-5d1c-8a16-e833920fdd97
identifier: oo:GB-COH-12535255
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# POWERMAIN (HOLDINGS) LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-12535255`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/b407a4d0-e7a3-5d1c-8a16-e833920fdd97  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/b407a4d0-e7a3-5d1c-8a16-e833920fdd97  

## Ownership & control

### Owners / controllers

- **Mr John Douglas Miller** (beneficial owner) — 75% — https://whiteintel.dev/entity/8a697989-ed3e-5dc4-bbc0-c93f47f7d201
- **Mr John Douglas Miller** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/4d43ec7d-3078-4738-9845-283065a181d4

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

1. **Mr John Douglas Miller** — beneficial owner 75% → *POWERMAIN (HOLDINGS) LIMITED*
1. **Mr John Douglas Miller** — beneficial owner 62.5% → *POWERMAIN (HOLDINGS) LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `12535255`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-03-26
- **Registered office:** Unit 4 Spitfire Way, Manston Airport, Ramsgate, Kent, CT12 5FF, United Kingdom
- **SIC:** 64209

### Officers

- MILLER, John Douglas — director · British · appointed 2020-03-26

### Beneficial owners (Persons with Significant Control)

- Mr John Douglas Miller — 50–75% shares · individual PSC · United Kingdom — since 2020-03-26

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12535255
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12535255

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **POWERMAIN (HOLDINGS) LIMITED**. Human view: https://whiteintel.dev/entity/b407a4d0-e7a3-5d1c-8a16-e833920fdd97 · Structured JSON: https://whiteintel.dev/api/public/dossier/b407a4d0-e7a3-5d1c-8a16-e833920fdd97._

_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"._