Overview
Legal name
SIZEWELL C LIMITED
Region
London
Registered address
25 COPTHALL AVENUE
LONDON
ENGLAND
EC2R 7BP
Insolvency history
No
Company
Active
LTD
Company profile
Sizewell C Limited
A New Nuclear Power Station for Britain - Sizewell C
Reliable, low-carbon power for 6 million homes. The project will support 70,000 jobs across the UK and rely on over 2,000 UK-based suppliers.
CRN
09284825
Founded
2014
Age
11
Corporate ownership
Updated 06 Jun 2026 16:52
1
Company
Active
LTD
Sizewell C Limited
CRN 09284825
2
Direct controller
Active
LTD
Edf Energy Holdings Limited
CRN 06930266
3
Direct and ultimate controller
Active
LTD
Sizewell C (holding) Limited
CRN 09284751
4
Direct controller
Active
LTD
Sizewell C (pledgeco) Limited
CRN 16480404
5
Ultimate controller
Active
LTD
Edf Energy (UK) Limited
CRN 02622406
Company events
Reference milestones and recent Companies House filing stream events.
9 events
01 Jun
2027
Confirmation statement due
Confirmation DueNext confirmation statement due date
31 Dec
2026
Accounts due
Accounts DueNext accounts due date
18 May
2026
Confirmation statement filed
ConfirmationLast confirmation statement made up date
27 Mar
2026
Appoint Person Director Company With Name Date
OfficersAP01 | Transaction MzUxMjk2OTMyOWFkaXF6a2N4
Published 27 Mar 2026 12:15
31 Mar
2025
Accounts filed
AccountsLast accounts made up date
04 Nov
2024
Termination Director Company With Name Termination Date
OfficersTM01 | Transaction MzQ0MTg1NzU5NWFkaXF6a2N4
Published 04 Nov 2024 09:03
18 Oct
2024
Appoint Person Director Company With Name Date
OfficersAP01 | Transaction MzQ0MDAzNTIyNGFkaXF6a2N4
Published 18 Oct 2024 07:17
18 Oct
2024
Termination Director Company With Name Termination Date
OfficersTM01 | Transaction MzQ0MDAzNTIxNWFkaXF6a2N4
Published 18 Oct 2024 07:17
28 Oct
2014
Incorporated
InceptionCompany registered at Companies House
Public funding
1 award
First funded
2021
Funded years
2021
Age at first award
6 years
Projects
2021
Collaborative R&D
Freeport East Energy Hub Feasibility Study
1 Sep 2021 to 31 Mar 2022
Awarded
£5,998
Total cost £9,996
This project is a feasibility study covering the potential for Freeport East to become both a net-zero port and a net-zero energy hub for third parties, leveraging opportunities such as the local presence of existing and new-build nuclear power stations at Sizewell. There is considerable use of fossil fuel at the nation's ports. This consumption takes the...
Product types
Collaborative R&D