Award

Wholesaler/Retailer Risk Allocation Model

THE WATER SERVICES REGULATION AUTHORITY

This public procurement record has 1 release in its history.

Award

13 Feb 2026 at 16:01

UK7 - Contract Details Notice
Summary of the contracting process

The Water Services Regulation Authority, known as Ofwat, based in Birmingham, has awarded a contract to Cubelynx Limited for the development of a Wholesaler/Retailer Risk Allocation Model. This procurement process falls under the category of business and management consultancy services. The project involves modelling work aimed at assessing credit and collateral arrangements in the business retail market, with deliverables including both quantitative models and supporting documentation. The procurement method was direct and below the threshold, without competition. The contract, valued at £50,000, started on 28th November 2025 and is scheduled to end by 31st March 2026, with a possibility of extension until 31st August 2026. The procurement stage reported is 'Award,' and key dates include the contract signing on 19th November 2025 and the publication notice on 13th February 2026.

This contract presents significant business growth opportunities for consultancy firms, particularly those specialising in financial modelling, risk assessment, and advisory services in the water industry. As the awarded supplier, Cubelynx Limited, an SME based in London, exemplifies the type of business well-suited to deliver complex quantitative analysis and create robust risk models for Ofwat. Companies with expertise in assisting public sector organisations or central government entities and those capable of providing comprehensive analytical support could find similar tenders advantageous as they aim to penetrate or expand within the public utility space across the UK regions listed in the tender.

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Notice Information

Notice Title

Wholesaler/Retailer Risk Allocation Model

Notice Description

Undertake modelling work and produce quantitative models of the costs and risks of different credit and collateral arrangements in the business retail market, together with supporting documentation. The Supplier shall provide the following Deliverables to the Customer as part of the Services: (1) Review the 2016 model of credit support costs to understand principal inputs, outputs and parameters, taking into account any relevant feedback Ofwat may have received regarding that modelling and updates to the modelling documentation. This shall be a Word document. (2) Develop and produce an understanding of prepayment and post payment timelines regarding Retailer payments to Wholesalers, as specified under the Wholesaler Retailer Code The Supplier shall provide the following Deliverables to the Customer as part of the Services: (1) Review the 2016 model of credit support costs to understand principal inputs, outputs and parameters, taking into account any relevant feedback Ofwat may have received regarding that modelling and updates to the modelling documentation. This shall be a Word document. (2) Develop and produce an understanding of prepayment and post payment timelines regarding Retailer payments to Wholesalers, as specified under the Wholesaler Retailer Code (WRC) business terms (WRC Schedule 1 Part 2 Business terms SS9 Billing and terms of payment - Available at: Market Codes - MOSL). (3) Develop and produce a quantitative model of impacts on and costs for a Retailer of providing different levels of collateral, under the payment timetables established in step (2). Principal costs should include the costs working capital and collateral. Modelling work should include sensitivities to four credit options. This shall be an Excel model. (4) Develop and produce a quantitative model of risk exposure and costs for a Wholesaler under different credit options. Sensitivities should include Retailer collateral provided as a proportion of a Wholesaler's total exposure, probability of Retailer default, and four credit options. This shall be an Excel model. (5) Write guidance documentation to explain and accompany both models, with a view to enabling external stakeholders and interested parties to understand and comment on the models and modelling assumptions. This shall be a Word document. Modelling work is to be carried in collaboration with Ofwat and relevant interim support. The quantitative models must be of a sufficient standard and robustness to be published on the Ofwat website.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-065444
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/013577-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK7 - Contract Details Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Direct
Procurement Method Details
Below threshold - without competition
Tender Suitability
Not specified
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

79 - Business services: law, marketing, consulting, recruitment, printing and security

CPV Codes

79400000 - Business and management consultancy and related services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
£50,000 Under £100K

Notice Dates

Publication Date
13 Feb 20261 weeks ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
19 Nov 20253 months ago
Contract Period
28 Nov 2025 - 31 Mar 2026 1-6 months
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
THE WATER SERVICES REGULATION AUTHORITY
Contact Name
Not specified
Contact Email
procurement@ofwat.gov.uk
Contact Phone
Not specified

Buyer Location

Locality
BIRMINGHAM
Postcode
B5 4UA
Post Town
Birmingham
Country
England
Major Region (ITL 1)
TLG West Midlands (England)
Basic Region (ITL 2)
TLG3 West Midlands
Small Region (ITL 3)
TLG31 Birmingham
Delivery Location
Not specified
Local Authority
Birmingham
Electoral Ward
Ladywood
Westminster Constituency
Birmingham Ladywood

Supplier Information

Number of Suppliers
1
Supplier Name

CUBELYNX

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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