DIAMOND TRANSMISSION PARTNERS WALNEY EXTENSION (HOLDINGS) LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2027-04-26 (in 11mo)
Last made up 2026-04-12
Watchouts
None on the register
Cash
—
Latest balance sheet
Net assets
—
Equity attributable
Employees
0
Average over period
Profit before tax
—
Period ending 2025-03-31
Headcount
2-year trend · vs Utilities median
Accounts
2-year trend · latest reflected 2025-03-31
| Metric | Trend | 2024-03-31 | 2025-03-31 |
|---|---|---|---|
| Turnover | — | — | |
| Operating profit | — | — | |
| Profit before tax | — | — | |
| Net profit | — | — | |
| Cash | — | — | |
| Total assets less current liabilities | — | — | |
| Net assets | — | — | |
| Equity | £1,000 | £1,000 | |
| Average employees | — | 0 | |
| Wages | — | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Audit & accounting basis
- Accounting basis
- IFRS
- Reporting scope
- Consolidated group
- Auditor
- Johnston Carmichael LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The Directors have confirmed that after due enquiry they have sufficient evidence to support their conclusion that both the Group and the Company are going concerns and have adequate resources in the foreseeable future to meet their on-going obligations, including the compliance with all debt covenants and servicing of debt holders, as those obligations fall due.”
Group structure
- DIAMOND TRANSMISSION PARTNERS WALNEY EXTENSION (HOLDINGS) LIMITED · parent
- Diamond Transmission Partners Walney Extension Limited 100%
Significant events
- “On 01 October 2024 the UK government acquired the shares in NESO and hence is now a publicly owned company.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
5 active · 10 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| BESWETHERICK, Elizabeth Jo | Director | 2020-04-06 | Jan 1988 | British |
| BROWN, Martin | Director | 2026-04-17 | Aug 1971 | British |
| DENG, Yandie | Director | 2025-07-30 | Jul 1990 | British |
| HEATH, James Christopher | Director | 2022-05-06 | Dec 1975 | British |
| ITO, Akihide | Director | 2022-03-29 | Jul 1969 | Japanese |
Show 10 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| FOOT, David Alexander John, Mr. | Director | 2020-04-06 | 2022-05-06 |
| IHARA, Hiromasa | Director | 2017-04-13 | 2018-03-26 |
| KOBAYASHI, Ryoji | Director | 2020-04-06 | 2020-11-05 |
| LEE, Kwansoo | Director | 2017-04-13 | 2020-06-10 |
| NISHIKAWA, Jun | Director | 2020-11-05 | 2021-07-02 |
| PITTS, Matthew John | Director | 2020-06-10 | 2025-07-30 |
| SHIMIZU, Satoshi | Director | 2017-04-13 | 2017-06-30 |
| THORNTON, Gary | Director | 2017-10-02 | 2026-04-17 |
| UEKI, Michiharu | Director | 2021-07-02 | 2022-03-29 |
| UMEMURA, Yasushi | Director | 2018-03-26 | 2020-03-31 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Diamond Transmission Uk Limited | Corporate entity | Shares 50–75%, Voting 25–50% | 2021-03-12 | Active |
| Infrastructure Investments Ofto 1 Limited | Corporate entity | Shares 25–50%, Voting 25–50% | 2020-06-01 | Active |
| Diamond Transmission Corporation Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2017-04-13 | Ceased 2021-03-12 |
Filing timeline
Last 20 of 56 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-05-05 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2026-04-20 | AP01 | officers | Appoint person director company with name date | |
| 2026-04-20 | TM01 | officers | Termination director company with name termination date | |
| 2026-04-20 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-11-27 | AA | accounts | Accounts with accounts type group | |
| 2025-10-09 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-10-02 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-09-29 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-08-12 | AP01 | officers | Appoint person director company with name date | |
| 2025-08-12 | TM01 | officers | Termination director company with name termination date | |
| 2025-04-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-16 | AA | accounts | Accounts with accounts type group | |
| 2024-04-12 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-08-09 | AA | accounts | Accounts with accounts type group | |
| 2023-04-19 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2022-08-17 | AA | accounts | Accounts with accounts type group | |
| 2022-05-17 | AP01 | officers | Appoint person director company with name date | |
| 2022-05-17 | TM01 | officers | Termination director company with name termination date | |
| 2022-04-13 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-04-04 | AP01 | officers | Appoint person director company with name date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 10
- Capital events
- 0
- Officers appointed
- 2
- Officers resigned
- 2
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.
Year-on-year
FY2024 → FY2025 · period ending 2025-03-31 vs 2024-03-31