---
title: "21 GREAT GEORGE STREET WEYMOUTH MANAGEMENT LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/7e128aec-20f0-5692-a0fe-d596dc2cebde
json: https://whiteintel.dev/api/public/dossier/7e128aec-20f0-5692-a0fe-d596dc2cebde
identifier: oo:GB-COH-09308409
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# 21 GREAT GEORGE STREET WEYMOUTH MANAGEMENT LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-09308409`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/7e128aec-20f0-5692-a0fe-d596dc2cebde  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/7e128aec-20f0-5692-a0fe-d596dc2cebde  

## Ownership & control

### Owners / controllers

- **Martin Josef Koscikiewicz** (beneficial owner) — 100% — https://whiteintel.dev/entity/5f63b97e-30f5-51f2-a92d-54f98a1af176
- **Martin Josef Koscikiewicz** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/6228678b-df6b-40ad-aef2-3d6b092125bc

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

1. **Martin Josef Koscikiewicz** — beneficial owner 100% → *21 GREAT GEORGE STREET WEYMOUTH MANAGEMENT LIMITED*
1. **Martin Josef Koscikiewicz** — beneficial owner 87.5% → *21 GREAT GEORGE STREET WEYMOUTH MANAGEMENT LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `09308409`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2014-11-12
- **Registered office:** Leanne House, 6 Avon Close, Weymouth, Dorset, DT4 9UX, United Kingdom
- **SIC:** 99999

### Officers

- KOSCIKIEWICZ, Martin Josef — director · British · appointed 2014-11-12

### Beneficial owners (Persons with Significant Control)

- Martin Josef Koscikiewicz — 75–100% shares · individual PSC · United Kingdom — since 2016-04-06

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/09308409
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/09308409

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **21 GREAT GEORGE STREET WEYMOUTH MANAGEMENT LIMITED**. Human view: https://whiteintel.dev/entity/7e128aec-20f0-5692-a0fe-d596dc2cebde · Structured JSON: https://whiteintel.dev/api/public/dossier/7e128aec-20f0-5692-a0fe-d596dc2cebde._

_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"._