DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED
Active Company number 10454309
DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED (company number 10454309) is a private limited company incorporated on 31 October 2016. Its status on the Companies House register is Active. Its registered office is in London, WC2B 6ST. Its nature of business (SIC 2007) is transmission of electricity (35120). Its latest accounts we hold, for the period ending 31 March 2025, report net assets of £2.0m.
Source: Companies House register, as at 1 April 2026. How to cite this page
Information only, not advice. Register details and accounts figures are the company's own filings, shown as filed: CompanyStack does not audit or verify them and accepts no responsibility for decisions made on them. Check important facts at Companies House.
Company Report on DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED (PDF)
The register, the accounts and the people behind the company in one PDF, for your own business use.
- Summary and Health Score, with the reasons behind the score
- Red flags and what changed in the last 12 months
- Key figures against the year before, and filing deadlines
- Financials ledger: up to 10 years of filed accounts
- Who runs and owns it: directors, secretaries and PSCs
- Charges, filing history and methodology
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Company details
- Company number
- 10454309
- Status
- Active
- Company type
- Private Limited Company
- Incorporated
- 31 October 2016
- Country of origin
- United Kingdom
- Registered office
- 71 KINGSWAY
LONDON
WC2B 6ST
UNITED KINGDOM
Nature of business (SIC 2007)
Accounts and confirmation statement
- Accounting reference date
- 31 March
- Accounts category
- GROUP
- Accounts last made up to
- 31 March 2025
- Next accounts due
- 31 December 2026
- Confirmation statement last made up to
- 30 October 2025
- Next confirmation statement due
- 13 November 2026
Financial summary
| Period ending | 31 March 2025 | 31 March 2024 |
|---|---|---|
| Net assets | £2.0m | £2.0m |
| Employees | 0 | — |
—: no figure read from the filing.
Figures read from filings at Companies House (ixbrl) and checked; see how we read them. Small-company accounts often omit turnover and profit. Spotted an error? Tell us.
Control, officers and charges
- Persons with significant control
- 2 current (3 including ceased)
- Corporate controllers
- Diamond Transmission Uk Limited
Infrastructure Investments Ofto 1 Limited - Charges (mortgages)
- 1 registered, 1 outstanding, 0 satisfied
Questions about DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED
Is DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED active?
Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 1 April 2026.)
When was DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED incorporated?
DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED was incorporated on 31 October 2016, according to the Companies House register. (Companies House register, as at 1 April 2026.)
Where is DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED registered?
Its registered office is in London, WC2B 6ST. (Companies House register, as at 1 April 2026.)
Who controls DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED?
The register lists 2 current persons with significant control (3 including those who have ceased). Corporate controllers named on the register: Diamond Transmission Uk Limited; Infrastructure Investments Ofto 1 Limited. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/10454309/persons-with-significant-control. (Companies House register, as at 1 April 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows
When are DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED's next accounts due?
The register shows the next accounts as due by 31 December 2026. Its latest accounts on the register were made up to 31 March 2025. (Companies House register, as at 1 April 2026.)
Does DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED file dormant accounts?
Not in its latest accounts. The register gives their category as “Group accounts”, made up to 31 March 2025. (Companies House register, as at 1 April 2026.) What a dormant company is and what it must file
Does DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED have any charges registered against it?
Yes. The register shows 1 charge: 1 outstanding and 0 satisfied. The charges themselves are listed at https://find-and-update.company-information.service.gov.uk/company/10454309/charges. (Companies House register, as at 1 April 2026.) Company charges: what a mortgage or debenture means and how to read one
Is DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED on a sanctions list?
No match for this company's name on the sanctions lists CompanyStack screens (UK, EU, OFAC SDN, OFAC non-SDN, Canada, Australia, New Zealand, Japan, France, US CSL) as at 8 October 2026. A name screen is not legal clearance.
Related companies
More transmission of electricity companies
- NORTHERN IRELAND ELECTRICITY NETWORKS LIMITED
- MUTUAL ENERGY LIMITED
- MOYLE INTERCONNECTOR (FINANCING) PUBLIC LIMITED COMPANY
- DIAMOND TRANSMISSION PARTNERS HORNSEA TWO LIMITED
- GWYNT Y MOR OFTO PLC
- PHASE M/E SOLUTIONS LIMITED
- GREATER GABBARD OFTO PLC
- TC DUDGEON OFTO PLC
Industry overview: 434 active companies in SIC 35120
Other active companies registered at WC2B 6ST
Related guides
Companies with similar names
Other companies, LLPs and partnerships on the Companies House register whose names begin “DIAMOND TRANSMISSION”. Each is a separate legal entity from DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED: check the registered number before relying on a name. Register data as at 1 April 2026.
- DIAMOND TRANSMISSION PARTNERS BBE (HOLDINGS) LIMITED (Company, Active, London; 10121746)
- DIAMOND TRANSMISSION PARTNERS BBE LIMITED (Company, Active, London; 10122057)
- DIAMOND TRANSMISSION PARTNERS DBB (HOLDINGS) LIMITED (Company, Active, London; 17232577)
- DIAMOND TRANSMISSION PARTNERS DBB LIMITED (Company, Active, London; 17235006)
- DIAMOND TRANSMISSION PARTNERS GALLOPER (HOLDINGS) LIMITED (Company, Active, London; 10725390)
- DIAMOND TRANSMISSION PARTNERS GALLOPER LIMITED (Company, Active, London; 10726070)
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Sources for company pages: Companies House (register, accounts, officers, PSCs, charges and filings), The Gazette (company insolvency notices only), the ONS Postcode Directory, official sanctions lists, including those of the UK (with UN designations), the EU, the US, Canada, Australia, New Zealand and France, and copies taken in April 2026 of the ICO register, the Charity Commission, CQC, Ofsted, Food Standards Agency and Environment Agency registers. Contains public sector information licensed under the Open Government Licence v3.0. CompanyStack is not affiliated with or endorsed by Companies House.
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Official register entry: DIAMOND TRANSMISSION PARTNERS RB (HOLDINGS) LIMITED on Companies House.
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