Awarded contract

Provision of ANSWERS/FISPIN Nuclear Software Codes

Details

Buyer: National Nuclear Laboratory Ltd
Supplier(s): Energy Safety and Risk Consultants UK Ltd (Wood)
Value: £603,312
Duration: 3 years
Topic: Software package and information systems
Published: 19 August 2026
Source: uk:find_a_tender

Tender description

This contract is for the renewal of licences for the ANSWERS/FISPIN nuclear software suite, including specialist codes used for nuclear safety analysis, criticality assessments, radiation transport, shielding calculations, and reactor physics modelling. The software supports established analytical methodologies and regulatory-approved processes across UKNNL's nuclear modelling and safety case activities. The contract provides software licences, maintenance, updates, and technical support for a period of three years. ## Contract award

Timeline

Completed: Award published19 August 2026
Current notice
Completed: Award date19 August 2026
Next: Contract expiry date31 August 2029in 3 years

About the buyer

National Nuclear Laboratory Ltd is a public sector buyer in the United Kingdom publishing tenders and awards on Stotles. Explore their procurement activity and find more opportunities like this one.

Decision makers

Connect with the people behind this procurement.

Job title	Phone number	Work email
Head of Procurement	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov
Commercial Director	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov
Procurement Manager	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov
Category Lead	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov
Senior Buyer	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov
Contracts Manager	+44 •••• ••••••	••••••••@national-nuclear-laboratory-ltd.gov