--- title: "DIAMOND TRANSMISSION UK LIMITED — Ownership Dossier" canonical: https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 json: https://whiteintel.dev/api/public/dossier/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 identifier: oo:GB-COH-12280960 jurisdiction: GB risk: Low source: WhiteIntel corporate-ownership graph --- # DIAMOND TRANSMISSION UK LIMITED **Type:** Company **Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb) **Identifier:** `oo:GB-COH-12280960` **Risk level:** Low **Canonical dossier:** https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 **Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 ## Cross-source identity The same real-world entity, resolved across sources: - **DIAMOND TRANSMISSION UK LIMITED** — GLEIF · `lei:21380099DVIQDTIB9857` — https://whiteintel.dev/entity/ffceeb2a-b5a8-5399-b72a-2f073cb3a57b ## Ownership & control ### Owners / controllers - **DTUK BLK BIDCO HOLDINGS LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/78f4e611-b677-5325-9ed6-16ba575e19c6 - **DIAMOND TRANSMISSION CORPORATION LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3 - **DIAMOND TRANSMISSION CORPORATION LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3 - **DTUK BLK BIDCO HOLDINGS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/78f4e611-b677-5325-9ed6-16ba575e19c6 ### Holdings / subsidiaries - **DIAMOND TRANSMISSION PARTNERS WALNEY EXTENSION (HOLDINGS) LIMITED** (beneficial owner) — 75% — https://whiteintel.dev/entity/480df35f-aec0-5699-8829-b4e41765cae7 - **DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED** (beneficial owner) — 75% — https://whiteintel.dev/entity/e802fb1b-ce35-547e-8560-feb3cd4b3cf1 - **DIAMOND TRANSMISSION PARTNERS GALLOPER (HOLDINGS) LIMITED** (beneficial owner) — 75% — https://whiteintel.dev/entity/99a5c3f1-4aaa-5a03-8097-0b51a3672a2d - **DIAMOND TRANSMISSION PARTNERS BBE (HOLDINGS) LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/52b04601-4c0d-53c8-963e-2873b57464a4 - **BLUE TRANSMISSION LONDON ARRAY (HOLDINGS) LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/cf9cfe34-72ff-4d5a-81e1-41b4fd0e7fae - **BLUE TRANSMISSION SHERINGHAM SHOAL (HOLDINGS) LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/6cde2d5d-da5d-49d5-998f-044ef13b03c0 - **DIAMOND TRANSMISSION PARTNERS GALLOPER (HOLDINGS) LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/99a5c3f1-4aaa-5a03-8097-0b51a3672a2d - **DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/e802fb1b-ce35-547e-8560-feb3cd4b3cf1 - **BLUE TRANSMISSION WALNEY 1 (HOLDINGS) LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f2de2764-291e-465e-a2ee-bda38fd3ff2e - **DIAMOND TRANSMISSION PARTNERS WALNEY EXTENSION (HOLDINGS) LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/480df35f-aec0-5699-8829-b4e41765cae7 - **DIAMOND TRANSMISSION PARTNERS DBB (HOLDINGS) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/cec55f8e-bfcc-402c-b762-3eb151245a1a - **DIAMOND TRANSMISSION PARTNERS SOFIA (HOLDINGS) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/61c158a6-9a40-4829-8594-d48ff927931d …and **2** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) or a one-off dossier — https://whiteintel.dev/pricing. ### UBO chain (walk to the ultimate owner) A **7-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:** `12280960` - **Status:** active - **Type:** ltd - **Incorporated:** 2019-10-24 - **Registered office:** 71 Kingsway, London, WC2B 6ST, United Kingdom - **SIC:** 35120 ### Officers - KERRENNUER, Antione Jean Rene — director · French · appointed 2025-08-12 - PORTER, Mark Darren — director · British · appointed 2025-03-24 - SANDHU, Rajinder Singh Bobby, Mr. — director · British · appointed 2025-08-29 - INANO, Shigeru — director · Japanese · appointed 2021-04-01 · resigned 2024-12-04 - KADOTA, Atsushi — director · Japanese · appointed 2024-04-15 · resigned 2024-12-04 - MURAMIYA, Masanobu — director · Japanese · appointed 2020-08-03 · resigned 2021-04-01 - O'BRIEN, David — director · American,Irish · appointed 2024-12-04 · resigned 2025-06-30 - PITTS, Matthew John — director · British · appointed 2019-10-24 · resigned 2025-07-23 - TETOT, Stephane Christophe — director · French · appointed 2024-12-04 · resigned 2025-03-24 - THORNTON, Gary — director · British · appointed 2019-10-24 · resigned 2026-06-12 - UMEMURA, Yasushi — director · Japanese · appointed 2019-10-24 · resigned 2020-03-31 - VERA, Eddu — director · Mexican · appointed 2024-12-04 · resigned 2025-08-29 ### Beneficial owners (Persons with Significant Control) - [Dtuk Blk Bidco Holdings Ltd](https://whiteintel.dev/entity/78f4e611-b677-5325-9ed6-16ba575e19c6) — 75–100% shares · corporate PSC · England — since 2024-12-04 - [Diamond Transmission Corporation Limited](https://whiteintel.dev/entity/9eda51a6-8e50-5b68-9ecd-1a892809d3f3) — 75–100% shares · corporate PSC · United Kingdom — ceased 2024-12-04 ## Provenance - OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12280960 - companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12280960 ## 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 UK LIMITED** — https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 · pricing https://whiteintel.dev/pricing. --- _This is the markdown-for-agents view of the WhiteIntel dossier for **DIAMOND TRANSMISSION UK LIMITED**. Human view: https://whiteintel.dev/entity/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2 · Structured JSON: https://whiteintel.dev/api/public/dossier/bc25db06-e2f3-5a4f-aa3e-f0b606d321e2._ _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"._