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NATIONAL ENERGY SYSTEM OPERATOR LIMITED

Active Company number 11014226

NATIONAL ENERGY SYSTEM OPERATOR LIMITED (company number 11014226) is a private limited company incorporated on 16 October 2017. Its status on the Companies House register is Active. Its registered office is in Wokingham, RG41 5BN. Its nature of business (SIC 2007) is other service activities n.e.c. (96090).

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 NATIONAL ENERGY SYSTEM OPERATOR 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
11014226
Status
Active
Company type
Private Limited Company
Incorporated
16 October 2017
Country of origin
United Kingdom
Registered office
ST CATHERINE'S LODGE BEARWOOD ROAD
SINDLESHAM
WOKINGHAM
RG41 5BN
ENGLAND

Nature of business (SIC 2007)

Accounts and confirmation statement

Accounting reference date
31 March
Accounts category
FULL
Accounts last made up to
31 March 2025
Next accounts due
31 December 2026
Confirmation statement last made up to
23 April 2026
Next confirmation statement due
7 May 2027

Control, officers and charges

Persons with significant control
1 current (2 including ceased)
Corporate controllers
The Secretary Of State For Energy Security And Net Zero

Previous names

  • NATIONAL GRID ELECTRICITY SYSTEM OPERATOR LIMITED (changed 1 October 2024)

Questions about NATIONAL ENERGY SYSTEM OPERATOR LIMITED

Is NATIONAL ENERGY SYSTEM OPERATOR LIMITED active?

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

When was NATIONAL ENERGY SYSTEM OPERATOR LIMITED incorporated?

NATIONAL ENERGY SYSTEM OPERATOR LIMITED was incorporated on 16 October 2017, according to the Companies House register. (Companies House register, as at 29 September 2026.)

Where is NATIONAL ENERGY SYSTEM OPERATOR LIMITED registered?

Its registered office is in Wokingham, RG41 5BN. (Companies House register, as at 29 September 2026.)

Who controls NATIONAL ENERGY SYSTEM OPERATOR LIMITED?

The register lists 1 current person with significant control (2 including those who have ceased). Corporate controllers named on the register: The Secretary Of State For Energy Security And Net Zero. The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/11014226/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 NATIONAL ENERGY SYSTEM OPERATOR 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 29 September 2026.)

Does NATIONAL ENERGY SYSTEM OPERATOR LIMITED file dormant accounts?

Not in its latest accounts. The register gives their category as “Full accounts”, made up to 31 March 2025. (Companies House register, as at 29 September 2026.) What a dormant company is and what it must file

Is NATIONAL ENERGY SYSTEM OPERATOR 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 7 October 2026. A name screen is not legal clearance.

More other service activities n.e.c. companies

Industry overview: 103,492 active companies in SIC 96090

Companies registered in Wokingham

Related guides

Companies with similar names

Other companies, LLPs and partnerships on the Companies House register whose names begin “NATIONAL ENERGY”. Each is a separate legal entity from NATIONAL ENERGY SYSTEM OPERATOR LIMITED: check the registered number before relying on a name. Register data as at 29 September 2026.

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: NATIONAL ENERGY SYSTEM OPERATOR LIMITED on Companies House.

Developers can fetch this profile as JSON with GET https://api.companystack.co.uk/company/11014226 — see the API documentation and pricing.