Provision of ANSWERS/FISPIN Nuclear Software Codes

National Nuclear Laboratory
Direct award
1 September 2026 to 31 August 2029

Renewal of licences for the ANSWERS/FISPIN nuclear software suite, including specialist codes for nuclear safety analysis, criticality assessments, radiation transport, shielding calculations, and reactor physics modelling. The contract includes software maintenance, updates, and technical support over a three-year term.

Open the official notice

Awarded value: £603k; As published
Published: 19 August 2026; Find a Tender
Awarded: 19 August 2026; Energy, Safety and Risk Consultants (UK) Limited
Contract length: 36 months; Ends 31 August 2029

What the buyer is asking for

Provision of nuclear software licences, maintenance, updates, and technical support for safety analysis and reactor physics modelling.

Lifecycle

Publishedon Find a Tender
19 August 2026
Contract awardedto Energy, Safety and Risk Consultants (UK) Limited
19 August 2026
Contract starts
1 September 2026
Contract ends
31 August 2029

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The buyer

Type: School or college
Finite element analysis software contracts, 24 months: 3
Open finite element analysis software tenders: 0
Typical finite element analysis software contract: £603k

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How it compares

13.1× the typical finite element analysis software contract (£46k).

Cite this contract

Link: https://bidskim.com/tender/3856070/provision-of-answers-fispin-nuclear-software-codes
Buyer reference: NNLC739
Open contracting ID: ocds-h6vhtk-06e816
Source: Find a Tender
Last checked: 12 October 2026

National Nuclear Laboratory. Provision of ANSWERS/FISPIN Nuclear Software Codes. Contract award, 19 August 2026. BidSkim, https://bidskim.com/tender/3856070/provision-of-answers-fispin-nuclear-software-codes (accessed 12 October 2026).