---
title: "THE HEADQUARTERS BUILDING HOLDCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/af5df153-d33b-5a2c-9da7-07390e33361e
json: https://whiteintel.dev/api/public/dossier/af5df153-d33b-5a2c-9da7-07390e33361e
identifier: oo:GB-COH-15979478
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THE HEADQUARTERS BUILDING HOLDCO LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-15979478`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/af5df153-d33b-5a2c-9da7-07390e33361e  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/af5df153-d33b-5a2c-9da7-07390e33361e  

## Ownership & control

### Owners / controllers

- **Mr Sean Mulryan** (beneficial owner) — 100% — https://whiteintel.dev/entity/04fe4d92-05a0-5956-a810-ee4048cdf6ef
- **PB COMPANY 2 LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/8eb24509-5951-5ce8-8734-bf4941d4a150
- **PB COMPANY 2 LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/8eb24509-5951-5ce8-8734-bf4941d4a150
- **Mr Sean Mulryan** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e312db01-620b-458a-a760-be6a4c5e22fe

### Holdings / subsidiaries

- **A01 HOLDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/0407f343-f99b-55ce-942e-b8bc45efab24
- **THE HEADQUARTERS BUILDING LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/d8f7e0d7-6df2-5de2-af5e-60cb04a1fd86
- **THE A01 BUILDING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/074a4cea-1b94-5a57-bcc3-4cd721421205
- **A01 HOLDCO LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/0407f343-f99b-55ce-942e-b8bc45efab24
- **THE HEADQUARTERS BUILDING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/d8f7e0d7-6df2-5de2-af5e-60cb04a1fd86

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

A **10-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:** `15979478`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2024-09-25
- **Registered office:** 4th Floor 161 Marsh Wall, London, England And Wales, E14 9SJ, United Kingdom
- **SIC:** 64209

### Officers

- DALTON, Patrick — secretary · appointed 2024-09-25
- DALTON, Patrick — director · Irish · appointed 2024-09-25
- MULRYAN, John — director · Irish · appointed 2024-09-25

### Beneficial owners (Persons with Significant Control)

- [Pb Company 2 Limited](https://whiteintel.dev/entity/8eb24509-5951-5ce8-8734-bf4941d4a150) — 75–100% shares · corporate PSC · United Kingdom — since 2024-09-26
- Mr Sean Mulryan — 75–100% shares · individual PSC · United Kingdom — ceased 2024-09-26

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15979478
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15979478

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **THE HEADQUARTERS BUILDING HOLDCO LIMITED** — https://whiteintel.dev/entity/af5df153-d33b-5a2c-9da7-07390e33361e · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THE HEADQUARTERS BUILDING HOLDCO LIMITED**. Human view: https://whiteintel.dev/entity/af5df153-d33b-5a2c-9da7-07390e33361e · Structured JSON: https://whiteintel.dev/api/public/dossier/af5df153-d33b-5a2c-9da7-07390e33361e._

_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"._