Contract 1. PLM Change Management
Supplier
Contract value
Before modification:
- £298,209 excluding VAT
- £357,850 including VAT
After modification:
- £447,314.49 excluding VAT
- £536,777.39 including VAT
50.00% increase
Above the relevant threshold
Contract modification date
17 December 2025
Effective date of the modification
17 December 2025
Justifications for contract modification
- Additional goods, services or works
Reason that these justifications apply
This modification is made under Schedule 8, Paragraph 8(1) of the Procurement Act 2023, which permits additional goods, services or works where:
A change of supplier would result in incompatible services
Such a change would cause disproportionate technical difficulties, substantial inconvenience, and duplication of costs
The modification does not increase the contract value by more than 50%
Signed contract documents
Countersigned Variation Letter.pdf
Other information
Conflicts assessment prepared/revised
Yes
Supplier
ASSYSTEM ENERGY & INFRASTRUCTURE LIMITED
- Companies House: 03148098
- Public Procurement Organisation Number: PLMB-2527-QMYM
Innovation Centre 1 Evolution Park
Blackburn
BB1 2FD
United Kingdom
Email: eitenders@assystem.com
Website: http://www.assystem.com
Region: UKD41 - Blackburn with Darwen
Small or medium-sized enterprise (SME): No
Voluntary, community or social enterprise (VCSE): No
Supported employment provider: No
Public service mutual: No
Contract 1. PLM Change Management
Contracting authority
UK INDUSTRIAL FUSION SOLUTIONS LTD
- Companies House: 14620804
- Public Procurement Organisation Number: PCRM-7973-DCBL
Culham Science Centre
Abingdon
OX14 3DB
United Kingdom
Region: UKJ14 - Oxfordshire
Organisation type: Public undertaking (commercial organisation subject to public authority oversight)