---
title: "THORNHAM MARINA LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ee367fe3-607b-549f-b773-251efb9d8690
json: https://whiteintel.dev/api/public/dossier/ee367fe3-607b-549f-b773-251efb9d8690
identifier: oo:GB-COH-04529387
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# THORNHAM MARINA LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-04529387`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ee367fe3-607b-549f-b773-251efb9d8690  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ee367fe3-607b-549f-b773-251efb9d8690  

## Ownership & control

### Owners / controllers

- **PREMIER MARINAS (TRAFALGAR INTERMEDIATE HOLDINGS) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/c3292f9d-0753-52db-861d-5256461d92c1
- **Mr Jonathan Giles Robert Boys** (beneficial owner) — 50% — https://whiteintel.dev/entity/c3b205b9-9478-5af1-a67c-9df4eb5570a7
- **TTG PORTSMOUTH LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/0271b483-47dd-51cc-bcb0-7de17aefe9d8
- **Mrs Louise Mary Boys** (beneficial owner) — 50% — https://whiteintel.dev/entity/bb5c8937-af8d-53a1-b11e-1119cc8977df
- **Mrs Louise Mary Boys** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/ecb2dcaf-606b-4f13-8ead-b7a43571fcd4
- **Mr Jonathan Giles Robert Boys** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/4456daed-90f1-4c00-8553-d3f18d984397
- **TTG PORTSMOUTH LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0271b483-47dd-51cc-bcb0-7de17aefe9d8
- **PREMIER MARINAS (TRAFALGAR INTERMEDIATE HOLDINGS) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c3292f9d-0753-52db-861d-5256461d92c1

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

A **26-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:** `04529387`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2002-09-09
- **Registered office:** Midland House, 2 Poole Road, Bournemouth, BH2 5QY, United Kingdom
- **SIC:** 82990

### Officers

- BOYS, Louise Mary — secretary · British · appointed 2006-06-22
- BOYS, Jonathan Giles Robert — director · British · appointed 2002-09-09
- BOYS, Matilda — secretary · British · appointed 2002-09-09 · resigned 2006-06-22
- FORM 10 SECRETARIES FD LTD — corporate nominee secretary · appointed 2002-09-09 · resigned 2002-09-09
- FORM 10 DIRECTORS FD LTD — corporate nominee director · appointed 2002-09-09 · resigned 2002-09-09

### Beneficial owners (Persons with Significant Control)

- [Ttg Portsmouth Limited](https://whiteintel.dev/entity/0271b483-47dd-51cc-bcb0-7de17aefe9d8) — 75–100% shares · corporate PSC · United Kingdom — since 2023-10-12
- [Jbt Holdings Limited](https://whiteintel.dev/entity/c3292f9d-0753-52db-861d-5256461d92c1) — 75–100% shares · corporate PSC · England — ceased 2023-10-12
- Mr Jonathan Giles Robert Boys — 25–50% shares · individual PSC · England — ceased 2018-03-23
- Mrs Louise Mary Boys — 25–50% shares · individual PSC · England — ceased 2018-02-19

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/04529387
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/04529387

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **THORNHAM MARINA LIMITED**. Human view: https://whiteintel.dev/entity/ee367fe3-607b-549f-b773-251efb9d8690 · Structured JSON: https://whiteintel.dev/api/public/dossier/ee367fe3-607b-549f-b773-251efb9d8690._

_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"._