---
title: "LONGBROOK TOPCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/bfbe8d6f-088a-4748-a5e5-1daea320855d
json: https://whiteintel.dev/api/public/dossier/bfbe8d6f-088a-4748-a5e5-1daea320855d
identifier: gb-coh:17034735
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# LONGBROOK TOPCO LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:17034735`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/bfbe8d6f-088a-4748-a5e5-1daea320855d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bfbe8d6f-088a-4748-a5e5-1daea320855d  

## Ownership & control

### Owners / controllers

- **MACQUARIE INFRASTRUCTURE AND REAL ASSETS INVESTMENTS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ade80f6e-4d1a-55e5-b0d8-a64fc891d964

### Holdings / subsidiaries

- **LONGBROOK UK SERVCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/90a0d140-dbca-49f7-a5b6-d6f9af07affd
- **LONGBROOK MIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/56f234ff-d43d-4823-849a-fde3d5921d3a

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

A **5-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:** `17034735`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2026-02-16
- **Registered office:** 1 Leadenhall Street, London, EC3V 1AB, United Kingdom
- **SIC:** 66290

### Officers

- CLAMEN, Alexandre — director · French · appointed 2026-02-16
- JACKSON, James Richard — director · British · appointed 2026-02-16
- PRENTICE, Sean James — director · British · appointed 2026-06-30
- TIMMINS, Michael James — director · British · appointed 2026-02-16
- WILSKI-JALOSZYNSKI, Nicholas Andrew — director · British · appointed 2026-02-16
- MANTLE, Helen Louise — secretary · appointed 2026-02-16 · resigned 2026-08-21

### Beneficial owners (Persons with Significant Control)

- [Macquarie Infrastructure And Real Assets Investments Limited](https://whiteintel.dev/entity/ade80f6e-4d1a-55e5-b0d8-a64fc891d964) — 75–100% shares · corporate PSC · United Kingdom — since 2026-02-16

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/17034735

## 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 **LONGBROOK TOPCO LIMITED** — https://whiteintel.dev/entity/bfbe8d6f-088a-4748-a5e5-1daea320855d · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **LONGBROOK TOPCO LIMITED**. Human view: https://whiteintel.dev/entity/bfbe8d6f-088a-4748-a5e5-1daea320855d · Structured JSON: https://whiteintel.dev/api/public/dossier/bfbe8d6f-088a-4748-a5e5-1daea320855d._

_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"._