---
title: "CB1 PLUMBING & HEATING LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/715e751e-9923-5237-8b69-e695fb1d17b5
json: https://whiteintel.dev/api/public/dossier/715e751e-9923-5237-8b69-e695fb1d17b5
identifier: oo:GB-COH-11553900
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CB1 PLUMBING & HEATING LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-11553900`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/715e751e-9923-5237-8b69-e695fb1d17b5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/715e751e-9923-5237-8b69-e695fb1d17b5  

## Ownership & control

### Owners / controllers

- **Mr Alistaire Luke Ryan** (beneficial owner) — 50% — https://whiteintel.dev/entity/e33ca17f-1725-595b-8d65-cecef0eeba75
- **Mr Alistaire Luke Ryan** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b3bf9011-5764-486b-81a7-c50e0e727abf
- **Mr Matthew Anthony Mortimer** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/b5506812-a277-4978-ae04-9cc110fca298

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

1. **Mr Alistaire Luke Ryan** — beneficial owner 50% → *CB1 PLUMBING & HEATING LTD*
1. **Mr Alistaire Luke Ryan** — beneficial owner 37.5% → *CB1 PLUMBING & HEATING LTD*
1. **Mr Matthew Anthony Mortimer** — beneficial owner 37.5% → *CB1 PLUMBING & HEATING LTD*

## Company profile (live · UK Companies House)

- **Company number:** `11553900`
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 2018-09-05
- **Registered office:** THE BARN, MUSGRAVE FARM HORNINGSEA ROAD, FEN DITTON, CAMBRIDGE, CAMBRIDGESHIRE, CB5 8SZ
- **SIC:** 43220 - Plumbing, heat and air-conditioning installation

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11553900
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11553900

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CB1 PLUMBING & HEATING LTD**. Human view: https://whiteintel.dev/entity/715e751e-9923-5237-8b69-e695fb1d17b5 · Structured JSON: https://whiteintel.dev/api/public/dossier/715e751e-9923-5237-8b69-e695fb1d17b5._

_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"._