---
title: "DIAMOND TRANSMISSION PARTNERS HORNSEA ONE LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e89a00e7-7f93-5627-9cd0-7162b7f898e5
json: https://whiteintel.dev/api/public/dossier/e89a00e7-7f93-5627-9cd0-7162b7f898e5
identifier: oo:GB-COH-12006626
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DIAMOND TRANSMISSION PARTNERS HORNSEA ONE LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12006626`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e89a00e7-7f93-5627-9cd0-7162b7f898e5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e89a00e7-7f93-5627-9cd0-7162b7f898e5  

## Cross-source identity

The same real-world entity, resolved across sources:

- **DIAMOND TRANSMISSION PARTNERS HORNSEA ONE LIMITED** — GLEIF · `lei:213800AU5LRRX2IMNM09` — https://whiteintel.dev/entity/86379008-dc5c-515e-973f-84c114353f9c

## Ownership & control

### Owners / controllers

- **DIAMOND TRANSMISSION PARTNERS HORNSEA ONE (HOLDINGS) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b2086cfe-22a1-567b-919f-3fc53c1e4c71

### 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:** `12006626`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-05-20
- **Registered office:** 71 Kingsway, London, WC2B 6ST, United Kingdom
- **SIC:** 35120

### Officers

- GWATINYANYA, Tawanda Soshangana — director · Zimbabwean · appointed 2026-04-17
- KATAOKA, Kunio — director · Japanese · appointed 2023-07-20
- KOJIMA, Fumiyasu — director · Japanese · appointed 2025-11-14
- NARUSE, Hiroki — director · Japanese · appointed 2026-06-30
- SAKAI, Naotaka — director · Japanese · appointed 2026-04-17
- ITO, Akihide — director · Japanese · appointed 2022-03-29 · resigned 2026-06-30
- KOBAYASHI, Ryoji — director · Japanese · appointed 2021-01-20 · resigned 2021-07-02
- MURAMIYA, Masanobu — director · Japanese · appointed 2020-08-03 · resigned 2021-01-20
- NAKANO, Reina — director · Japanese · appointed 2025-05-02 · resigned 2026-04-17
- NISHIKAWA, Jun — director · Japanese · appointed 2021-01-20 · resigned 2022-03-29
- PITTS, Matthew John — director · British · appointed 2019-05-20 · resigned 2021-03-24
- SUGIMORI, Katsuji — director · Japanese · appointed 2022-03-29 · resigned 2023-07-20
- TAMATE, Keiro — director · Japanese · appointed 2021-03-24 · resigned 2024-01-30
- THORNTON, Gary — director · British · appointed 2019-05-20 · resigned 2026-04-17
- UEKI, Michiharu — director · Japanese · appointed 2021-07-02 · resigned 2022-03-29
- UMEMURA, Yasushi — director · Japanese · appointed 2019-05-20 · resigned 2020-03-31
- YUKI, Masaya — director · Japanese · appointed 2024-01-30 · resigned 2025-05-02

### Beneficial owners (Persons with Significant Control)

- [Diamond Transmission Partners Hornsea One (Holdings) Limited](https://whiteintel.dev/entity/b2086cfe-22a1-567b-919f-3fc53c1e4c71) — 75–100% shares · corporate PSC · United Kingdom — since 2019-05-20

## Exposure (derived from the ownership graph)

**1** owner upstream in this entity's ownership/control chain is flagged — a sanctions hit or a secrecy jurisdiction — an investigative lead by resolved identity, not a legal determination. The contributing parties and the hop-by-hop path unlock with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12006626
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12006626

## 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 **DIAMOND TRANSMISSION PARTNERS HORNSEA ONE LIMITED** — https://whiteintel.dev/entity/e89a00e7-7f93-5627-9cd0-7162b7f898e5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DIAMOND TRANSMISSION PARTNERS HORNSEA ONE LIMITED**. Human view: https://whiteintel.dev/entity/e89a00e7-7f93-5627-9cd0-7162b7f898e5 · Structured JSON: https://whiteintel.dev/api/public/dossier/e89a00e7-7f93-5627-9cd0-7162b7f898e5._

_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"._