---
title: "DIAMOND TRANSMISSION PARTNERS BBE (HOLDINGS) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/52b04601-4c0d-53c8-963e-2873b57464a4
json: https://whiteintel.dev/api/public/dossier/52b04601-4c0d-53c8-963e-2873b57464a4
identifier: oo:GB-COH-10121746
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DIAMOND TRANSMISSION PARTNERS BBE (HOLDINGS) LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-10121746`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/52b04601-4c0d-53c8-963e-2873b57464a4  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/52b04601-4c0d-53c8-963e-2873b57464a4  

## Ownership & control

### Owners / controllers

- **DIAMOND TRANSMISSION CORPORATION LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3
- **DIAMOND TRANSMISSION CORPORATION LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3
- **DIAMOND TRANSMISSION UK LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2
- **INFRASTRUCTURE INVESTMENTS OFTO 1 LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8a86504d-45c5-5955-b6b0-feeb1e25aed0
- **DIAMOND TRANSMISSION UK LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2

### Holdings / subsidiaries

- **DIAMOND TRANSMISSION PARTNERS BBE LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/4c2a582b-cc04-56d3-9f82-202e784dd5fc
- **DIAMOND TRANSMISSION PARTNERS BBE LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/4c2a582b-cc04-56d3-9f82-202e784dd5fc

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

A **76-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:** `10121746`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2016-04-13
- **Registered office:** 71 Kingsway, London, WC2B 6ST, England
- **SIC:** 35120

### Officers

- BESWETHERICK, Elizabeth Jo — director · British · appointed 2018-07-23
- BROWN, Martin — director · British · appointed 2026-04-17
- DENG, Yandie — director · British · appointed 2025-07-30
- HEATH, James Christopher — director · British · appointed 2022-05-06
- FOOT, David Alexander John, Mr. — director · British · appointed 2018-04-19 · resigned 2022-05-06
- IHARA, Hiromasa — director · Japanese · appointed 2016-09-22 · resigned 2018-03-26
- LEE, Kwansoo — director · South Korean · appointed 2018-03-26 · resigned 2019-11-25
- ORRELL, Stewart — director · British · appointed 2018-04-19 · resigned 2018-07-23
- PITTS, Matthew John — director · British · appointed 2019-11-25 · resigned 2025-07-30
- SHIMIZU, Satoshi — director · Japanese · appointed 2016-04-13 · resigned 2017-06-30
- THORNTON, Gary — director · British · appointed 2016-04-13 · resigned 2026-04-17
- UMEMURA, Yasushi — director · Japanese · appointed 2018-03-26 · resigned 2018-04-19

### Beneficial owners (Persons with Significant Control)

- [Diamond Transmission Uk Limited](https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2) — 25–50% shares · corporate PSC · England — since 2020-05-07
- [Infrastructure Investments Ofto 1 Limited](https://whiteintel.dev/entity/8a86504d-45c5-5955-b6b0-feeb1e25aed0) — 25–50% shares · corporate PSC · England — since 2018-04-19
- [Diamond Transmission Corporation Limited](https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3) — 25–50% shares · corporate PSC · England — ceased 2020-02-14

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10121746
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10121746

## 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 BBE (HOLDINGS) LIMITED** — https://whiteintel.dev/entity/52b04601-4c0d-53c8-963e-2873b57464a4 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DIAMOND TRANSMISSION PARTNERS BBE (HOLDINGS) LIMITED**. Human view: https://whiteintel.dev/entity/52b04601-4c0d-53c8-963e-2873b57464a4 · Structured JSON: https://whiteintel.dev/api/public/dossier/52b04601-4c0d-53c8-963e-2873b57464a4._

_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"._