GB · Company with significant control

Edf Energy Holdings Limited

Edf Energy Holdings Limited is recorded as a controlling entity on the Companies House register of people with significant control for 10 UK companies.

Register details

Facts

Name on the register
Edf Energy Holdings Limited
Type
Corporate entity
Registration number
06930266
Registered in
England
Significant control now
10 UK companies
Earlier significant control
5 UK companies
First notified
6 April 2016
Source
Companies House register of people with significant control, 20 September 2026

At a glance

Edf Energy Holdings Limited's companies

  • Edf Energy Holdings Limited holds 75% or more of the shares in 7 of the 10 companies listed below.
  • Main lines of business: production of electricity (4), activities of head offices (2) and other service activities n.e.c. (2).
  • Registered offices in London (9) and Glasgow (1).
  • The companies were incorporated between 1989 and 2023.
  • 3 of the companies also list other people or companies with significant control.

These details come from the register as published on 20 September 2026. The register can change at any time: check the current entry live before relying on it.

Companies

Significant control now

UK companies that list Edf Energy Holdings Limited as a company with significant control, with the nature of that control as registered.

CompanyStatusIncorporatedTownBusinessNature of controlSince
SIZEWELL C LIMITED
09284825 · Private Limited Company
Active28 October 2014LondonProduction of electricityHas significant influence or control4 November 2025
ARABELLE SOLUTIONS UK LIMITED
14767051 · Private Limited Company
Active29 March 2023LondonActivities of head officesOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors29 March 2023
NNB TOP COMPANY HPC (C) LIMITED
13815312 · Private Limited Company
Active23 December 2021LondonActivities of other holding companies n.e.c.Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors23 December 2021
EDF DEVELOPMENT COMPANY LIMITED
06222043 · Private Limited Company
Active23 April 2007LondonProduction of electricityOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors16 January 2020
EDF ENERGY LIMITED
02366852 · Private Limited Company
Active1 April 1989LondonProduction of electricityOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors9 April 2018
EDF ENERGY R&D UK CENTRE LIMITED
02948613 · Private Limited Company
Active14 July 1994LondonOther business support service activities n.e.c.Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors28 March 2018
BRADWELL POWER HOLDING COMPANY LIMITED
09940504 · Private Limited Company
Active7 January 2016LondonOther service activities n.e.c.Owns more than 25% but not more than 50% of the shares; Holds more than 25% but not more than 50% of the voting rights29 September 2016
GENERAL NUCLEAR SYSTEM LIMITED
09940129 · Private Limited Company
Active7 January 2016LondonOther service activities n.e.c.Owns more than 25% but not more than 50% of the shares; Holds more than 25% but not more than 50% of the voting rights29 September 2016
EDF ENERGY LAKE LIMITED
09200461 · Private Limited Company
Active2 September 2014LondonActivities of head officesOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 April 2016
NORTHERN POWER LIMITED
SC155131 · Private Limited Company
Active23 December 1994GlasgowProduction of electricityOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 April 2016

History

Earlier significant control

Companies where Edf Energy Holdings Limited was registered as having significant control, and no longer is.

CompanyNature of controlFromUntil
NUCLEAR SERVICES (TECHNICAL) COMPANY LIMITED
15749828 · Private Limited Company
Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors30 May 202430 January 2025
EDF EPR ENGINEERING UK LIMITED
14627514 · Private Limited Company
Owns 75% or more of the shares, as a trustee of a trust; Holds 75% or more of the voting rights, as a trustee of a trust; Can appoint or remove a majority of the board of directors, as a trustee of a trust31 January 202323 May 2023
NNB HOLDING COMPANY (HPC) LIMITED
06937080 · Private Limited Company
Owns more than 25% but not more than 50% of the shares; Holds more than 25% but not more than 50% of the voting rights6 April 201629 September 2016
NNB TOP COMPANY HPC (B) LTD
09284753 · Private Limited Company
Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 April 201629 March 2022
SIZEWELL C (HOLDING) LIMITED
09284751 · Private Limited Company
Has significant influence or control6 April 20164 November 2025

Connections

Others with significant control of these companies

  • Sizewell C (Pledgeco) LimitedSIZEWELL C LIMITED
  • Sizewell C (Holdco) LimitedSIZEWELL C LIMITED
  • General Nuclear International LimitedBRADWELL POWER HOLDING COMPANY LIMITED

Explained

What significant control means

Every UK company must keep a register of the people with significant control over it and file it with Companies House. Someone has significant control if they own more than 25% of the shares or voting rights, can appoint or remove a majority of the board, or otherwise have significant influence or control. Companies can also be controlled through another company, which then appears on the register itself.

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