Published date: 18 December 2025

Awarded contract - This means that the contract has been awarded to a supplier.


Closing: 7 October 2025, 3pm

Contract summary

Industry

  • Technical analysis or consultancy services - 71621000

Location of contract

SW1A 2AW

Value of contract

£3,640,000 to £4,840,000

Procurement reference

tender_500858/1539756

Published date

18 December 2025

Closing date

7 October 2025

Closing time

3pm

Contract start date

1 December 2025

Contract end date

30 November 2028

Contract type

Service contract

Procedure type

Call-off from a framework agreement

A mini-competition or direct purchase from a pre-established framework agreement.

Contract is suitable for SMEs?

No

Contract is suitable for VCSEs?

No

Description

The Department for Energy Security and Net Zero has awarded this Contract for the supply of Technical Advisory Services in respect of the Sizewell C project.

The Supplier will support HMG in its oversight as Shareholder and Policy Sponsor of the Sizewell C Project in the post-Final Investment Decision and Financial Close phases of the project.

More information

Attachments

Links

Award information

Awarded date

1 December 2025

Contract start date

1 December 2025

Contract end date

30 November 2028

Total value of contract

£3,640,000

This contract was awarded to 1 supplier.

Mott MacDonald Limited

Address

10 Fleet Place, London, United Kingdom, EC4M 7RB

Reference

Companies House number: 01243967

Supplier is SME?

No

Supplier is VCSE?

No

About the buyer

Contact name

Department for Energy Security and Net Zero

Address

3-8 Whitehall Place
London
SW1A 2AW
England

Email

butch.vraniqi@energysecurity.gov.uk