---
title: "TGS (CALVERTON) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/01c61ebc-dede-5eef-bd93-8bf025c4cd75
json: https://whiteintel.dev/api/public/dossier/01c61ebc-dede-5eef-bd93-8bf025c4cd75
identifier: oo:GB-COH-08532690
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# TGS (CALVERTON) LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-08532690`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/01c61ebc-dede-5eef-bd93-8bf025c4cd75  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/01c61ebc-dede-5eef-bd93-8bf025c4cd75  

## Ownership & control

### Owners / controllers

- **Mr Mark Christopher Bowker** (beneficial owner) — 100% — https://whiteintel.dev/entity/c9c0194c-f18e-50f3-baf3-641291b750c5
- **Mr Mark Christopher Bowker** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f23d932e-a8c6-4694-a0b9-f96f9141a087

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

1. **Mr Mark Christopher Bowker** — beneficial owner 100% → *TGS (CALVERTON) LIMITED*
1. **Mr Mark Christopher Bowker** — beneficial owner 87.5% → *TGS (CALVERTON) LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `08532690`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2013-05-16
- **Registered office:** 70 Aylesham Avenue, Arnold, Nottingham, NG5 6PP, England
- **SIC:** 47990

### Officers

- BOWKER, Keeley Simone — director · British · appointed 2020-01-23
- BOWKER, Mark — director · British · appointed 2013-05-16
- COYLE, Kevin Carl — director · British · appointed 2013-05-16 · resigned 2013-05-17

### Beneficial owners (Persons with Significant Control)

- Mr Mark Christopher Bowker — 75–100% shares · individual PSC · England — since 2016-07-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/08532690
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/08532690

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **TGS (CALVERTON) LIMITED**. Human view: https://whiteintel.dev/entity/01c61ebc-dede-5eef-bd93-8bf025c4cd75 · Structured JSON: https://whiteintel.dev/api/public/dossier/01c61ebc-dede-5eef-bd93-8bf025c4cd75._

_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"._