Filing status
- Accounts due
- 31 December 2026
- Last accounts
- 31 March 2025
- Conf. stmt due
- 6 November 2027
- Last conf. stmt
- 23 October 2026
Diamond Transmission UK Limited
- Incorporated
- 24 October 2019 (7 years)
- Industry
- Transmission of electricity (35120)
- Directors
- Antione Jean Rene KerrennuerMark Darren Porter
- Owned by
- Accounts type
- Full
- Region
- Greater London
- Address
- 71 KingswayLondonWC2B 6ST
Officers 3 active
Officer details are public data from the Companies House register.
Director · Appointed 29 August 2025
British
Born August 1983 (43)
Kerrennuer, Antione Jean Rene
Director · Appointed 12 August 2025
French
Born May 1978 (48)
Porter, Mark Darren
Director · Appointed 24 March 2025
British
Born June 1972 (54)
Officer history (9 former)
12 June 2026
29 August 2025
Resigned Vera, Eddu as Director
29 August 2025
12 August 2025
Appointed Kerrennuer, Antione Jean Rene as Director
23 July 2025
30 June 2025
Resigned O'Brien, David as Director
24 March 2025
Appointed Porter, Mark Darren as Director
24 March 2025
Resigned Tetot, Stephane Christophe as Director
4 December 2024
Resigned Kadota, Atsushi as Director
4 December 2024
Appointed Vera, Eddu as Director
4 December 2024
Resigned Inano, Shigeru as Director
4 December 2024
Appointed O'Brien, David as Director
4 December 2024
Appointed Tetot, Stephane Christophe as Director
15 April 2024
Appointed Kadota, Atsushi as Director
1 April 2021
Appointed Inano, Shigeru as Director
1 April 2021
3 August 2020
31 March 2020
24 October 2019
24 October 2019
24 October 2019
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 4 December 2024
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Private Company Limited By Shares
Reg. no. 15848613
Former controllers (1)
4 December 2024
Ceased Diamond Transmission Corporation Limited — Owns 75–100% of shares
Group structure 17 shown
Ownership group derived from the Companies House PSC register
Dtuk BLK Bidco Holdings Ltd Owns 75–100% of shares
Diamond Transmission UK Limited This company Owns 75–100% of shares
Blue Transmission London Array (Holdings) Limited Owns 25–50% of shares
Blue Transmission Sheringham Shoal (Holdings) Limited Owns 25–50% of shares
Blue Transmission Walney 1 (Holdings) Limited Owns 25–50% of shares
Blue Transmission Walney 2 (Holdings) Limited Owns 25–50% of shares
Diamond Transmission Partners Bbe (Holdings) Limited Owns 25–50% of shares
Diamond Transmission Partners DBB (Holdings) Limited Owns 75–100% of shares
Diamond Transmission Partners Galloper (Holdings) Limited Owns 50–75% of shares
Diamond Transmission Partners RB (Holdings) Limited Owns 50–75% of shares
Diamond Transmission Partners Sofia (Holdings) Limited Owns 75–100% of shares
Diamond Transmission Partners Walney Extension (Holdings) Limited Owns 50–75% of shares
Gip Core Prism Topco Limited Owns 75–100% of shares
Gip Core Prism Midco Limited Owns 75–100% of shares
Gip Core Prism Bidco Limited Owns 75–100% of shares
Gip Core UK Bidco Ltd Owns 75–100% of shares
Financials
Balance sheet as at 31 March 2025 · full accounts
Balance sheet detail
| 2025 |
|---|
Filings 46
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 4 November 2026 | Confirmation statement with no updates | 23 October 2026 | ||
| 23 June 2026 | Termination of appointment of a director | |||
| 17 December 2025 | Full accounts | 31 March 2025 | ||
| 5 November 2025 | Confirmation statement with updates | 23 October 2025 | ||
| 9 October 2025 | Registered office address changed |
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