WESTPORT ENERGY STORAGE LIMITED

Active Files dormant accounts to 31 October 2025 Company number 15615868

WESTPORT ENERGY STORAGE LIMITED (company number 15615868) is a private limited company incorporated on 4 April 2024. Its status on the Companies House register is Active. Its registered office is in King's Langley, WD4 8LR. Its nature of business (SIC 2007) is production of electricity (35110). The company files dormant accounts. The latest, to 31 October 2025, report no trading.

Source: Companies House register, as at 29 September 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.

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Company Report on WESTPORT ENERGY STORAGE 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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What dormant means

The company's latest accounts were filed as dormant: it reported no significant transactions in the year. Its register status can still be Active.

Dormant company: what it means on Companies House — what happens next, how long it lasts and what to do if the company owes you money.

Company details

Company number: 15615868
Status: Active
Company type: Private Limited Company
Incorporated: 4 April 2024
Country of origin: United Kingdom
Registered office: BEAUFORT COURT
EGG FARM LANE
KINGS LANGLEY
HERTFORDSHIRE
WD4 8LR
UNITED KINGDOM

Nature of business (SIC 2007)

35110 — Production of electricity

Accounts and confirmation statement

Accounting reference date: 31 October
Accounts filed: Dormant accounts for the period to 31 October 2025 (no trading reported)
Accounts last made up to: 31 October 2025
Next accounts due: 31 July 2027
Confirmation statement last made up to: 3 April 2026
Next confirmation statement due: 17 April 2027

Control, officers and charges

Persons with significant control: 1 current (1 including ceased)
Corporate controllers: Res Uk & Ireland Limited

Previous names

RES DEVELOPMENT COMPANY 31 LIMITED (changed 8 January 2025)

Questions about WESTPORT ENERGY STORAGE LIMITED

Is WESTPORT ENERGY STORAGE LIMITED active?

Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 29 September 2026.)

When was WESTPORT ENERGY STORAGE LIMITED incorporated?

WESTPORT ENERGY STORAGE LIMITED was incorporated on 4 April 2024, according to the Companies House register. (Companies House register, as at 29 September 2026.)

Where is WESTPORT ENERGY STORAGE LIMITED registered?

Its registered office is in King's Langley, WD4 8LR. (Companies House register, as at 29 September 2026.)

Who controls WESTPORT ENERGY STORAGE LIMITED?

The register lists 1 current person with significant control (1 including those who have ceased). Corporate controllers named on the register: Res Uk & Ireland Limited. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/15615868/persons-with-significant-control. (Companies House register, as at 29 September 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows

When are WESTPORT ENERGY STORAGE LIMITED's next accounts due?

The register shows the next accounts as due by 31 July 2027. Its latest accounts on the register were made up to 31 October 2025. (Companies House register, as at 29 September 2026.)

Does WESTPORT ENERGY STORAGE LIMITED file dormant accounts?

Yes. The register gives the category of its latest accounts, made up to 31 October 2025, as “Dormant”. (Companies House register, as at 29 September 2026.) What a dormant company is and what it must file

Is WESTPORT ENERGY STORAGE 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 6 October 2026. A name screen is not legal clearance.

More production of electricity companies

Industry overview: 10,527 active companies in SIC 35110

Other active companies registered at WD4 8LR

Companies registered in King's Langley

Related guides

How to check a UK company before you trade with it

About CompanyStack

CompanyStack turns Companies House records into answers you can act on: who a company is, who runs and owns it, whether it keeps up with its filings and how its finances are moving. Every figure traces back to a public record, and we say when a record is missing.

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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Use this data

Official register entry: WESTPORT ENERGY STORAGE LIMITED on Companies House.

Developers can fetch this profile as JSON with GET https://api.companystack.co.uk/company/15615868 — see the API documentation and pricing.