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Sizewell C (Holding) Limited
Sizewell C (Holding) Limited is an active company incorporated on 28 October 2014 with the registered office located in London, City of London. Sizewell C (Holding) Limited was registered 11 years ago.
Watch Company
Status
Active
Active since
incorporation
Company No
09284751
Private limited company
Age
11 years
Incorporated
28 October 2014
Size
Micro
Turnover is under
£1M
Under
10 employees
Confirmation
Submitted
Dated
18 May 2025
(7 months ago)
Next confirmation dated
18 May 2026
Due by
1 June 2026
(4 months remaining)
Last change occurred
7 months ago
Accounts
Submitted
For period
1 Apr
⟶
31 Mar 2025
(12 months)
Accounts type is
Full
Next accounts for period
31 March 2026
Due by
31 December 2026
(12 months remaining)
Learn more about Sizewell C (Holding) Limited
Contact
Update Details
Address
25 Copthall Avenue
London
EC2R 7BP
England
Address changed on
17 Mar 2025
(9 months ago)
Previous address was
, 90 Whitfield Street, London, W1T 4EZ, England
Companies in EC2R 7BP
Telephone
Unreported
Email
Unreported
Website
Edfenergy.com
See All Contacts
People
Officers
8
Shareholders
2
Controllers (PSC)
2
William John Holland Kaye
Director • British • Lives in UK • Born in Mar 1965
Alejandro Lopez Delgado
Director • Spanish,british • Lives in France • Born in Nov 1977
Robert Guyler
Director • Accountant • British • Lives in Scotland • Born in Dec 1966
Henry Butler Lloyd
Director • Civil Servant • British • Lives in England • Born in Feb 1965
Olivier Georges Xavier Fortin
Director • French • Lives in England • Born in Mar 1974
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Shareholders, PSCs & Group Structure
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Mutual Companies
Edf Development Company Limited
Robert Guyler is a mutual person.
Active
Boreas (Investment) Limited
Olivier Georges Xavier Fortin is a mutual person.
Active
Boreas Holdco Limited
Olivier Georges Xavier Fortin is a mutual person.
Active
Sizewell C Limited
William John Holland Kaye is a mutual person.
Active
CDP Renewable UK Hydro Limited
Olivier Georges Xavier Fortin is a mutual person.
Active
CDP Renewable UK Hydro Ii Limited
Olivier Georges Xavier Fortin is a mutual person.
Active
Sizewell C (Pledgeco) Limited
Olivier Georges Xavier Fortin is a mutual person.
Active
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Financials
Net Assets, Total Assets & Total Liabilities (2015–2025)
Period Ended
31 Mar 2025
For period
31 Mar
⟶
31 Mar 2025
Traded for
12 months
Cash in Bank
£3.83M
Increased by £171K (+5%)
Turnover
Unreported
Same as previous period
Employees
Unreported
Same as previous period
Total Assets
£4.02B
Increased by £2.03B (+101%)
Total Liabilities
-£113K
Increased by £78K (+223%)
Net Assets
£4.02B
Increased by £2.03B (+101%)
Debt Ratio (%)
0%
Increased by 0% (+60%)
See 10 Year Full Financials
Latest Activity
Clive Andrew Maxwell Resigned
1 Month Ago on 23 Nov 2025
The Secretary of State for Energy Security and Net Zero (PSC) Details Changed
2 Months Ago on 4 Nov 2025
Mr David Kirwan Appointed
2 Months Ago on 4 Nov 2025
Mr Olivier Georges Xavier Fortin Appointed
2 Months Ago on 4 Nov 2025
Mr Alejandro Lopez Delgado Appointed
2 Months Ago on 4 Nov 2025
Mr Cyril Joseph Louis Stephane Baseden Appointed
2 Months Ago on 4 Nov 2025
New Charge Registered
2 Months Ago on 4 Nov 2025
New Charge Registered
2 Months Ago on 4 Nov 2025
Full Accounts Submitted
2 Months Ago on 16 Oct 2025
Mr John William Holland Kaye Details Changed
10 Months Ago on 1 Mar 2025
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Get Credit Report
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See All Credit Score & Limits
Documents
Director's details changed for Mr John William Holland Kaye on 1 March 2025
Submitted on 12 Dec 2025
Statement of capital following an allotment of shares on 4 November 2025
Submitted on 3 Dec 2025
Change of share class name or designation
Submitted on 3 Dec 2025
Particulars of variation of rights attached to shares
Submitted on 3 Dec 2025
Change of details for The Secretary of State for Energy Security and Net Zero as a person with significant control on 4 November 2025
Submitted on 2 Dec 2025
Statement of capital following an allotment of shares on 4 November 2025
Submitted on 1 Dec 2025
Termination of appointment of Clive Andrew Maxwell as a director on 23 November 2025
Submitted on 25 Nov 2025
Resolutions
Submitted on 20 Nov 2025
Resolutions
Submitted on 20 Nov 2025
Memorandum and Articles of Association
Submitted on 20 Nov 2025
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Repayment History
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