---
title: "WESTMINSTER OPUS BIDCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/6ba261b0-7ea6-487a-9edf-efddce9d4f53
json: https://whiteintel.dev/api/public/dossier/6ba261b0-7ea6-487a-9edf-efddce9d4f53
identifier: gb-coh:16899968
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# WESTMINSTER OPUS BIDCO LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:16899968`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/6ba261b0-7ea6-487a-9edf-efddce9d4f53  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/6ba261b0-7ea6-487a-9edf-efddce9d4f53  

## Ownership & control

### Owners / controllers

- **Westminster Bidco Limited** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/d29c13f1-b8fb-4b4d-8bd3-75a59abb024e
- **GRAPHITE CAPITAL GENERAL PARTNER IX LLP** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/3770dc6d-dc9c-5af4-b7d8-23b43aea93e9
- **Hexagon Midco 2 Limited** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/d37524f3-845e-48a4-9312-0a959226acd6
- **Hexagon Midco 1 Limited** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/4e3adf83-f259-4e0d-a8d5-e3450f2955cd
- **Opus Holdco Limited** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/0f58d4b3-2f4a-4505-9793-cc36e31288e2

### Holdings / subsidiaries

- **HEXAGON BIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/1838db34-525c-5c12-a0da-0a43e54ad1ee

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

A **9-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:** `16899968`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2025-12-09
- **Registered office:** 5th Floor 4 Coleman Street, London, EC2R 5AR, United Kingdom
- **SIC:** 70100, 74990

### Officers

- DOLAN, Graham John Anthony — secretary · appointed 2025-12-09
- HERRON, Adam — director · British · appointed 2025-12-09
- JACKSON, Richard Andrew — director · British · appointed 2026-06-30
- BURCHALL, Andrew Jeremy — director · British · appointed 2025-12-09 · resigned 2026-06-30

### Beneficial owners (Persons with Significant Control)

- Opus Holdco Limited — 25–50% shares · corporate PSC · United Kingdom — since 2025-12-15
- Westminster Bidco Limited — 50–75% shares · corporate PSC · United Kingdom — since 2025-12-09
- Hexagon Midco 2 Limited — 25–50% shares · corporate PSC · United Kingdom — ceased 2025-12-15
- Hexagon Midco 1 Limited — 25–50% shares · corporate PSC · England — ceased 2025-12-15
- [Graphite Capital General Partner Ix Llp](https://whiteintel.dev/entity/3770dc6d-dc9c-5af4-b7d8-23b43aea93e9) — 25–50% shares · corporate PSC · United Kingdom — ceased 2025-12-15

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/16899968

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **WESTMINSTER OPUS BIDCO LIMITED**. Human view: https://whiteintel.dev/entity/6ba261b0-7ea6-487a-9edf-efddce9d4f53 · Structured JSON: https://whiteintel.dev/api/public/dossier/6ba261b0-7ea6-487a-9edf-efddce9d4f53._

_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"._