---
title: "PROJECT POSEIDON TOPCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8d707de7-e11d-5804-bffb-c381ba6bbd16
json: https://whiteintel.dev/api/public/dossier/8d707de7-e11d-5804-bffb-c381ba6bbd16
identifier: oo:GB-COH-13697533
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PROJECT POSEIDON TOPCO LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-13697533`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8d707de7-e11d-5804-bffb-c381ba6bbd16  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8d707de7-e11d-5804-bffb-c381ba6bbd16  

## Ownership & control

### Owners / controllers

- **STAR NEPTUNE BIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/3bb3a6ca-02cf-55de-9075-eb71154f1085
- **STAR NEPTUNE BIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3bb3a6ca-02cf-55de-9075-eb71154f1085

### Holdings / subsidiaries

- **PROJECT POSEIDON MIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/c48ec1be-d063-5650-b75f-5279dba2798d
- **PROJECT POSEIDON MIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c48ec1be-d063-5650-b75f-5279dba2798d

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

A **14-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:** `13697533`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2021-10-22
- **Registered office:** C/O Subsea Technology & Rentals Ltd - Sonar House 36 Riverside Road, Gorleston, Great Yarmouth, NR31 6PX, England
- **SIC:** 96090

### Officers

- BANNERMAN, Stuart Charles — director · British · appointed 2024-12-06
- STEELE, Stephen Samuel James — director · British · appointed 2022-01-14
- BENFIELD, James Oliver — director · British · appointed 2021-10-22 · resigned 2024-12-06
- DYER, Andy — director · British · appointed 2022-01-14 · resigned 2024-03-15
- JOHNSTONE, Scott Ewan Lincon — director · British · appointed 2022-01-14 · resigned 2023-12-31
- MATTHEWS, Charles Lewis — director · British · appointed 2022-01-14 · resigned 2024-12-06

### Beneficial owners (Persons with Significant Control)

- [Star Neptune Bidco Limited](https://whiteintel.dev/entity/3bb3a6ca-02cf-55de-9075-eb71154f1085) — 75–100% shares · corporate PSC · England — since 2024-12-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13697533
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/13697533

## 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 **PROJECT POSEIDON TOPCO LIMITED** — https://whiteintel.dev/entity/8d707de7-e11d-5804-bffb-c381ba6bbd16 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PROJECT POSEIDON TOPCO LIMITED**. Human view: https://whiteintel.dev/entity/8d707de7-e11d-5804-bffb-c381ba6bbd16 · Structured JSON: https://whiteintel.dev/api/public/dossier/8d707de7-e11d-5804-bffb-c381ba6bbd16._

_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"._