---
title: "PORTLAND MARINA LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/fc127b50-17d0-5983-bf19-af7b78f85bf5
json: https://whiteintel.dev/api/public/dossier/fc127b50-17d0-5983-bf19-af7b78f85bf5
identifier: oo:GB-COH-07289462
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PORTLAND MARINA LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-07289462`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/fc127b50-17d0-5983-bf19-af7b78f85bf5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/fc127b50-17d0-5983-bf19-af7b78f85bf5  

## Ownership & control

### Owners / controllers

- **Mr John Michael Dean** (beneficial owner) — 50% — https://whiteintel.dev/entity/ddda93d5-3c6c-56dd-a62e-081e79902b03
- **Mr Richard John Reddyhoff** (beneficial owner) — 50% — https://whiteintel.dev/entity/da2cae98-8e65-5b5e-b282-306f51a8e8ae
- **BOATFOLK MARINAS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/5e1faf2a-e33f-56a7-9b31-3868ea4bc73a
- **Mr John Michael Dean** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/87030dd8-f8b9-40b6-91db-61247137c3de
- **Mr Richard John Reddyhoff** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/99bed269-a6d8-44da-9ddd-f0ea6f1d6286
- **BOATFOLK MARINAS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/5e1faf2a-e33f-56a7-9b31-3868ea4bc73a

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

A **18-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:** `07289462`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2010-06-18
- **Registered office:** Swanwick Marina, Swanwick, Southampton, Hampshire, SO31 1ZL, England
- **SIC:** 99999

### Officers

- BRADSHAW, Peter Hamilton — director · British · appointed 2025-09-16
- CERVENKA, John Mischa — director · British · appointed 2025-09-16
- COLLINS, Geoffrey Andrew — director · British · appointed 2025-09-16
- LATHAM, Graham William — secretary · appointed 2010-06-18 · resigned 2018-06-11
- DEAN, John Michael — director · British · appointed 2010-06-18 · resigned 2019-09-05
- LATHAM, Graham William — director · British · appointed 2010-06-18 · resigned 2017-12-31
- MCCARTHY, Hannah — director · British · appointed 2024-11-05 · resigned 2025-09-16
- PRIDEAUX, Michael Andrew Charles — director · British · appointed 2019-09-05 · resigned 2024-11-05
- REDDYHOFF, Richard John — director · British · appointed 2010-06-18 · resigned 2023-06-30
- ZAMMIT, Dominic — director · British · appointed 2024-11-05 · resigned 2025-09-16

### Beneficial owners (Persons with Significant Control)

- [Boatfolk Marinas Ltd](https://whiteintel.dev/entity/5e1faf2a-e33f-56a7-9b31-3868ea4bc73a) — 75–100% shares · corporate PSC · England — since 2017-11-29
- Mr John Michael Dean — 25–50% shares · individual PSC · United Kingdom — ceased 2017-11-29
- Mr Richard John Reddyhoff — 25–50% shares · individual PSC · England — ceased 2017-11-29

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/07289462
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/07289462

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **PORTLAND MARINA LIMITED** — https://whiteintel.dev/entity/fc127b50-17d0-5983-bf19-af7b78f85bf5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PORTLAND MARINA LIMITED**. Human view: https://whiteintel.dev/entity/fc127b50-17d0-5983-bf19-af7b78f85bf5 · Structured JSON: https://whiteintel.dev/api/public/dossier/fc127b50-17d0-5983-bf19-af7b78f85bf5._

_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"._