Section one: Contracting authority
one.1) Name and addresses
Great British Energy - Nuclear
10 Victoria Street,
London
SW1H 0NB
commercialcdp@greatbritishnuclear.uk
Country
United Kingdom
Region code
UK - United Kingdom
National registration number
05027024
Internet address(es)
Main address
https://www.gov.uk/government/organisations/great-british-energy-nuclear
one.4) Type of the contracting authority
Body governed by public law
one.5) Main activity
Environment
Section two: Object
two.1) Scope of the procurement
two.1.1) Title
Requirement Management System
two.1.2) Main CPV code
- 48000000 - Software package and information systems
two.1.3) Type of contract
Supplies
two.1.4) Short description
GBN has awarded a contract for the supply, implementation and support of a modern Requirements Management System to act as the organisation’s authoritative system of record for requirements across its Small Modular Reactor (SMR) programme.
The system enables requirements capture, traceability, verification and validation, auditability, and secure collaboration with delivery partners.
two.1.6) Information about lots
This contract is divided into lots: No
two.1.7) Total value of the procurement (excluding VAT)
Value excluding VAT: £464,308.93
two.2) Description
two.2.3) Place of performance
NUTS codes
- UK - United Kingdom
two.2.4) Description of the procurement
GBN sought a modern, scalable, and secure Requirements Management System capable of acting as the system of record for GBN and its Small Modular Reactor (SMR) projects. The RMS will support requirement definition, traceability, verification & validation, project assurance, and data lifecycle integrity across GBN and future DevCos.
The system must integrate with GBN’s digital estate, support secure collaboration with supply chain partners, and comply with UK data residency and cyber‑security requirements.
two.2.5) Award criteria
Quality criterion - Name: Price / Weighting: 30
Quality criterion - Name: SOCIAL VALUE / Weighting: 10
Quality criterion - Name: CONTRACT / PERFORMANCE MANAGEMENT & CONTINUOUS IMPROVEMENT / Weighting: 10
Quality criterion - Name: EXPERIENCE / TRACK RECORD / CASE STUDY / Weighting: 10
Quality criterion - Name: PROPOSED APPROACH AND METHODOLOGY / Weighting: 20
Quality criterion - Name: UNDERSTANDING OF REQUIREMENTS AND TECHNICAL SOLUTION / Weighting: 20
Price - Weighting: 100
two.2.11) Information about options
Options: No
two.2.13) Information about European Union Funds
The procurement is related to a project and/or programme financed by European Union funds: No
Section four. Procedure
four.1) Description
four.1.1) Type of procedure
Award of a contract without prior publication of a call for competition in the cases listed below
- The procurement falls outside the scope of application of the regulations
Explanation:
The supplier was selected following a compliant mini‑competition under a pre‑approved national framework.
four.1.8) Information about the Government Procurement Agreement (GPA)
The procurement is covered by the Government Procurement Agreement: No
Section five. Award of contract
Contract No
con_8545
Title
Provision of Requirement Management System
A contract/lot is awarded: Yes
five.2) Award of contract
five.2.1) Date of conclusion of the contract
30 July 2025
five.2.2) Information about tenders
Number of tenders received: 3
Number of tenders received by electronic means: 3
The contract has been awarded to a group of economic operators: No
five.2.3) Name and address of the contractor
Phoenix Software Limited
Blenheim House York Road
Pocklington, York
YO421NS
Country
United Kingdom
NUTS code
- UK - United Kingdom
The contractor is an SME
Yes
five.2.4) Information on value of contract/lot (excluding VAT)
Initial estimated total value of the contract/lot: £464,398.93
Total value of the contract/lot: £464,308.93
Section six. Complementary information
six.3) Additional information
Variation 1 (2026 – Patching & Configuration Support)
• Addition of ad‑hoc pay‑per‑use urgent patching
• Addition of 8 consultancy days for extended Polarion tool configuration
• Value: £15,306.50 (ex VAT)
Variation made under PCR 2015 Regulation 72(1)(b) (additional necessary services where change of supplier would cause duplication of cost/inconvenience)
Total Contract Value After Variation 1
£479,615.43 (ex VAT)
(£464,308.93 + £15,306.50)
£575,538.52 (inc VAT)
(£557,170.72 + £18,367.80)
six.4) Procedures for review
six.4.1) Review body
Cabinet Office
London
Country
United Kingdom