DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2026-11-13 (in 6mo)
Last made up 2025-10-30
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 | £2,000,000 | £2,000,000 | |
| 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 RB (HOLDINGS) LIMITED · parent
- Diamond Transmission Partners RB Limited 1%
Significant events
- “On 13 February 2024 export cable circuit 2 tripped resulting in a 50% loss of availability. Circuit 2 was repaired and returned to service on 09 April 2024. The financial impact of the lost availability which would have impacted the 2025/26 revenue was recovered via a successful exceptional event claim under the transmission licence.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
4 active · 7 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| BESWETHERICK, Elizabeth Jo | Director | 2019-08-20 | Jan 1988 | British |
| DENG, Yandie | Director | 2025-07-30 | Jul 1990 | British |
| GWATINYANYA, Tawanda Soshangana | Director | 2026-04-17 | Aug 1983 | Zimbabwean |
| HEATH, James Christopher | Director | 2022-05-06 | Dec 1975 | British |
Show 7 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| FOOT, David Alexander John, Mr. | Director | 2019-08-20 | 2022-05-06 |
| IHARA, Hiromasa | Director | 2016-10-31 | 2018-03-26 |
| LEE, Kwansoo | Director | 2018-03-26 | 2019-11-25 |
| PITTS, Matthew John | Director | 2019-11-25 | 2025-07-30 |
| SHIMIZU, Satoshi | Director | 2016-10-31 | 2017-06-30 |
| THORNTON, Gary | Director | 2016-10-31 | 2026-04-17 |
| UMEMURA, Yasushi | Director | 2018-03-26 | 2019-08-20 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Diamond Transmission Uk Limited | Corporate entity | Shares 50–75%, Voting 50–75% | 2020-05-07 | Active |
| Infrastructure Investments Ofto 1 Limited | Corporate entity | Shares 25–50%, Voting 25–50% | 2019-08-21 | Active |
| Diamond Transmission Corporation Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-10-31 | Ceased 2020-02-14 |
Filing timeline
Last 20 of 49 total filings
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-05-05 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2026-04-21 | AP01 | officers | Appoint person director company with name date | |
| 2026-04-21 | TM01 | officers | Termination director company with name termination date | |
| 2025-11-27 | AA | accounts | Accounts with accounts type group | |
| 2025-11-12 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 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 | |
| 2024-10-31 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-08-19 | AA | accounts | Accounts with accounts type group | |
| 2023-10-30 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-08-09 | AA | accounts | Accounts with accounts type group | |
| 2022-11-02 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-08-09 | 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 | |
| 2021-11-04 | CH01 | officers | Change person director company with change 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
- 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