DIAMOND TRANSMISSION PARTNERS WALNEY EXTENSION LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2027-05-01 (in 1y)
Last made up 2026-04-17
Watchouts
None on the register
Cash
£3M
+11.9% vs 2024
Net assets
—
Equity attributable
Employees
0
Average over period
Profit before tax
—
Period ending 2025-03-31
Cash
3-year trend · vs Utilities median
Accounts
3-year trend · latest reflected 2025-03-31
| Metric | Trend | 2023-03-31 | 2024-03-31 | 2025-03-31 |
|---|---|---|---|---|
| Turnover | — | — | — | |
| Operating profit | — | — | — | |
| Profit before tax | — | — | — | |
| Net profit | — | — | — | |
| Cash | — | £2,721,000 | £3,044,000 | |
| Total assets less current liabilities | — | — | — | |
| Net assets | — | — | — | |
| Equity | £13,892,000 | £18,515,000 | £25,155,000 | |
| 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
- Standalone (parent only)
- 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 the Company is a going concern and has adequate resources in the foreseeable future to meet its on-going obligations, including the compliance with all debt covenants and servicing of debt holders, as those obligations fall due.”
Significant events
- “On 01 October 2024 the UK government acquired the shares in NESO and hence is now a publicly owned company.”
- “On 04 December 2024 Mitsubishi Corporation ("MC") which is incorporated in Japan sold 100% of it's shareholding in DTUK to DTUKBBH.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
6 active · 9 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 |
| THORNTON, Gary | Director | 2017-10-02 | Dec 1965 | British |
Show 9 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| FOOT, David Alexander John, Mr. | Director | 2020-04-06 | 2022-05-06 |
| IHARA, Hiromasa | Director | 2017-04-18 | 2018-03-26 |
| KOBAYASHI, Ryoji | Director | 2020-04-06 | 2020-11-05 |
| LEE, Kwansoo | Director | 2017-04-18 | 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 | 2017-04-18 | 2017-06-30 |
| 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 Partners Walney Extension (Holdings) Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2017-04-18 | Active |
Filing timeline
Last 20 of 51 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-21 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2026-04-21 | AP01 | officers | Appoint person director company with name date | |
| 2025-11-27 | AA | accounts | Accounts with accounts type full | |
| 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 | |
| 2025-04-22 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-16 | AA | accounts | Accounts with accounts type full | |
| 2024-04-17 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-08-09 | AA | accounts | Accounts with accounts type full | |
| 2023-04-19 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-08-09 | AA | accounts | Accounts with accounts type full | |
| 2022-05-17 | TM01 | officers | Termination director company with name termination date | |
| 2022-05-17 | AP01 | officers | Appoint person director company with name date | |
| 2022-04-19 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-04-05 | TM01 | officers | Termination director company with name termination date | |
| 2022-04-04 | AP01 | officers | Appoint person director company with name date | |
| 2021-11-04 | CH01 | officers | Change person director company with change date |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 8
- Capital events
- 0
- Officers appointed
- 2
- Officers resigned
- 1
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
-
Turnover
—
Not reported
-
Cash
+11.9%
£2,721,000 £3,044,000
-
Net assets
—
Not reported
-
Employees
—
Not reported
Each % is (latest − prior) ÷ |prior| for the line item as filed. Periods don't have to be exactly 12 months apart — a long or short period (typical around incorporation or year-end changes) will distort the comparison. Lines a company doesn't report are omitted. About these numbers