CSSF-001 - Support to international post closure criticality safety projects.

Call-off from a framework agreement

CPV: Research services (73110000)

Published panel value£20,000Shared across 2 suppliers; not a single purchase

Contract ends 31 Mar 2027

Awarded to AMENTUM CLEAN ENERGY LIMITED, Galson Sciences Limited.

Contract starts 11 Jun 2026

What is being bought

Published requirement description

NWS are heavily involved in two international projects on post-closure criticality safety. These are:

Implementing Geological Disposal of radioactive waste Technology Platform (IGD-TP) Post-Closure Criticality Safety (PCCS) project, and work Package 1

Procedure: Call-off from a framework agreement
Buyer reference: CF-0290500D4L000000iAvzUAE
Category: Services
Tender status: Complete
Award status: Active
Suitable for SMEs: No
Suitable for voluntary, community and social enterprises: No
Published tender value: £60,000.00
Tender deadline: 1 Jun 2026, 12:00 BST
Procurement method: Selective
Item 1: Delivery locations as published: OX11 0GD; British Oversea Territories; Channel Islands; Europe; Isle of Man; Rest of the World; United Kingdom

Published dates

Nuclear Waste ServicesContracting authority Helios, Thomson Abenue, Harwell, OX14 0GD, GBContact name, email

AMENTUM CLEAN ENERGY LIMITEDSupplier 305 Bridgewater Place, Birchwood Park, Warrington, WA3 6XF
Galson Sciences Limited.Supplier 5 Grosvenor House Melton Road Oakham Rutland, Oakham, LE15 6AX

Official links; attachments are not copied

Notices published for this procedure

Awarded contract notice on Contracts Finder awardAward noticeen18 Jun 2026, 16:49 BST

Source: Contracts Finder
Notice language: en
Release reference: ocds-b5fd17-38999145-f93d-4ec1-91b4-0de364e8e95e-2026-06-18T16:49:58+01:00
Published: 18 Jun 2026
Latest update: 18 Jun 2026
Procedure reference: ocds-b5fd17-38999145-f93d-4ec1-91b4-0de364e8e95e
Contract reference: ocds-b5fd17-38999145-f93d-4ec1-91b4-0de364e8e95e-1