---
title: "HIGH SIERRA LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e673a69c-6bd5-53e4-acf0-c87f04d733de
json: https://whiteintel.dev/api/public/dossier/e673a69c-6bd5-53e4-acf0-c87f04d733de
identifier: oo:GB-COH-03644978
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HIGH SIERRA LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03644978`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e673a69c-6bd5-53e4-acf0-c87f04d733de  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e673a69c-6bd5-53e4-acf0-c87f04d733de  

## Ownership & control

### Owners / controllers

- **Mr Matthew Richard Sealby** (beneficial owner) — 100% — https://whiteintel.dev/entity/9c9711e2-eecc-5d13-ae5f-dab30a31f2bd
- **Mr Matthew Richard Sealby** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/22901436-59b6-4614-ac5d-09bc6841ae57

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

A **2-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:** `03644978`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1998-10-06
- **Registered office:** 16 Birstwith Road, Harrogate, North Yorkshire, HG1 4TG
- **SIC:** 62020

## Financials (Companies House accounts)

| Figure | 2025-10-31 |
|---|---:|
| Net assets | £42,445 |
| Shareholder funds | £42,445 |
| Fixed assets | £1,153 |
| Current assets | £64,180 |
| Employees | 1 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- SEALBY, Matthew Richard — director · British · appointed 1998-10-09
- LINDEMANN, Sarah Bethany — secretary · British · appointed 1998-10-09 · resigned 2000-12-24
- SEALBY, Eira Margaret — secretary · British · appointed 2000-12-25 · resigned 2017-10-17
- BRIGHTON SECRETARY LIMITED — corporate nominee secretary · appointed 1998-10-06 · resigned 1998-10-09
- BRIGHTON DIRECTOR LIMITED — corporate nominee director · appointed 1998-10-06 · resigned 1998-10-09

### Beneficial owners (Persons with Significant Control)

- Mr Matthew Richard Sealby — 75–100% shares · individual PSC — since 2016-10-05

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03644978
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03644978
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/03644978/filing-history

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HIGH SIERRA LIMITED**. Human view: https://whiteintel.dev/entity/e673a69c-6bd5-53e4-acf0-c87f04d733de · Structured JSON: https://whiteintel.dev/api/public/dossier/e673a69c-6bd5-53e4-acf0-c87f04d733de._

_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"._