System operational · UK tenders
planned
ocds-h6vhtk-06a1d3 · planning

NorTMS External Audit Services

Transport for the North

Estimated Value

Up to £300,000

Deadline

Not specified

Published

22 May 2026

Type

Not specified

North WestGB

Overview

The NorTMS Audit is to undertake audits as required of the Northern Transport Modelling System (NorTMS), a Cube-based VDM with a focus on intercity rail in the North of England. These will be required on a call-off basis when a stable model release is available.

After each audit the supplier will be expected to provide an audit report with recommendations for areas requiring improvement. This will be subject to a one+one+one year call-off basis.

TfN requires a supplier who is an expert CUBE model reviewer with competent Python skills as some elements of NorTMS are coded in Python, and who has not worked with NorTMS or related to any TfN framework directly involved in NorTMS, unless the work that was delivered relates to the audit of NorTMS. The scope of work required for each NorTMS audit underpins the following objectives: •Provision of a full audit of all NorTMS inputs and outputs with the aim of instilling confidence in NorTMS for its use in modelling works and supporting business cases. •A review of each version of NorTMS following model updates and improvements prior to implementation on programme. •To understand the fitness for purpose of NorTMS in its use for assessing schemes for Northern Powerhouse Rail (NPR). •Production of a comprehensive audit report giving a RAG rating of all the model elements reviewed. •A final report comprising of a plain English summary of issues identified (for a general audience) and a detailed technical report (for a modelling audience) with potential recommendations for areas requiring improvement, an outline of best practices in CUBE and the application of CUBE as a modelling tool. For more information about this opportunity, please visit the eSourcing portal at: https://www.delta-esourcing.com/tenders/UK-UK-Manchester:... To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/37Z364B3KV

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Likely incumbents

Suppliers who won similar work from this buyer in the last 5 years.

5 found
  1. 1

    Kallidus Ltd

    1 contract wonlatest 2 Jun 2026ends 24 Jul 2028

    £21,830

    total awarded

  2. 2

    CPCS Transcom UK Ltd

    1 contract wonlatest 16 Jan 2026

    £30,000

    total awarded

  3. 3

    CPC PROJECT SERVICES LIMITED

    1 contract wonlatest 4 Nov 2025
  4. 4

    HASKONING UK LIMITED

    1 contract wonlatest 29 Aug 2025

    £50,000

    total awarded

  5. 5

    ATKINSRÉALIS UK LIMITED

    1 contract wonlatest 13 Aug 2025ends 31 Mar 2026CH 00688424

    £4m

    total awarded

Kallidus Ltd is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.

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SponsoredEst. 2010
Gladstone & Co AccountantsTax advisers · East Ham, London

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Buyer Profile

TRANSPORT FOR THE NORTH
Typepublic body
RegionNorth West
Total tenders12
Total spend£4,545,000
View buyer profile

Key Dates

Published

22 May 2026

Submission deadline

Not specified

Notice type

planning

Source

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