Award

Overhaul of Jumpers for S Stock Metropolitan Line Fleet

LONDON UNDERGROUND LIMITED

This public procurement record has 2 releases in its history.

Award

30 Mar 2026 at 09:06

Planning

05 Mar 2026 at 15:01

Summary of the contracting process

The public procurement contracting process for the overhaul of the Jumper system on the London Underground Metropolitan line trains has been awarded directly to AB Connectors Limited. London Underground Limited, operating as the buyer, alongside their procuring entity, Transport for London, oversees this contract. The main procurement category is services under the utilities special regime, with a contract period from 22nd July 2026 to 29th December 2028. The contract involves maintaining and upgrading the jumper systems integral to the train's operations, located in the London (UKI) region, classified under railway and associated parts and fleet management services. The most recent award notice was published on 30th March 2026, with a future contract signature anticipated on 22nd May 2026.

This tender represents substantial growth opportunities for businesses involved in the railway and tramway locomotives sector, particularly those providing parts and maintenance services. The direct award to AB Connectors Limited highlights the technical complexity and specific compatibility requirements of the jumper systems, underscoring the importance of specialized knowledge and experience in the industry. Businesses capable of designing, manufacturing, and maintaining such critical infrastructure components will find value in competing for similar opportunities in the future, especially if they can demonstrate a robust understanding of the technical and safety specifications integral to London's transport infrastructure.

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Notice Title

Overhaul of Jumpers for S Stock Metropolitan Line Fleet

Notice Description

This procurement covers the overhaul of the Jumper system (including parts & labour) on the London Underground Metropolitan line trains, required to renew the jumper system compliance and to support the fleet overhaul activities. The jumpers are bespoken to the Metropolitan line fleet and have not been replaced since the fleet's introduction, approximately 16 years ago, hence are now due for overhauls in line with the train management regime. The design, manufacture and ad hoc repairs on the Metropolitan line Jumper system has been carried out by the Original Equipment Manufacturers - AB Connectors (a subsidiary of TT Electronics), from the time of the fleet's procurement, so there would be a continuity of supply from the time of introduction of these components by using the current supplier.

Procurement Information

Additional or repeat goods, services or works - extension or partial replacement. The jumper system is a critical high safety and high reliability cabling connection that electrically and electronically link adjacent cars, enabling seamless and integrated transfer of power and communication signals throughout the train. This integration allows for safeguarding and coordinated control of various onboard centralised functional systems such as lighting, HVAC, door operations, passenger information, safety systems and diagnostic functions. The technical specifications for Jumper parts and overhaul services are developed strictly to ensure proportionate compatibility with these existing systems. Given the inherent complexity of this specification, TfL does not have the technical information to specificity of jumpers to manage its compatibility with the aforementioned systems, if sourced from alternative supplier; and without validated requirement specifications, supporting assurance documentation, or the necessary testing equipment on-site, TfL have no baseline for verification or benchmarking of alternatively sourced jumper. Therefore, an introduction of these jumpers, aside disproportionate maintenance risks, could cause unresolvable in-service failure and malfunctions (in both communication and power transfer) to and of the critical functions - lighting, train doors, HVAC, safety systems, etc - described above, which severely risks passenger and infrastructure safety. Consequently, TfL cannot assure or safely deploy an alternative solution, as trains cannot enter service without fully functional, compatible and compliant cabling systems which are essential to maintaining both reliability and safety. Hence, the justification for awarding this proposed contract as a direct award without competition is in accordance with Schedule 5, paragraph 7 of the Procurement Act 2023, given the technical complexity of the jumper system and (a) a change in supplier would result in the contracting authority (London Underground) receiving overhauled jumper systems that are different from, or incompatible with, the existing goods, services or works, and (b) the difference or incompatibility would result in disproportionate technical difficulties in operation or maintenance.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06633f
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/028901-2026
Current Stage
Award
All Stages
Planning, Award

Procurement Classification

Notice Type
UK5 - Transparency Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Direct
Procurement Method Details
Direct award
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

34 - Transport equipment and auxiliary products to transportation

50 - Repair and maintenance services


CPV Codes

34600000 - Railway and tramway locomotives and rolling stock and associated parts

50111000 - Fleet management, repair and maintenance services

Notice Value(s)

Tender Value
£1,000,000 £1M-£10M
Lots Value
Not specified
Awards Value
£1,000,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
30 Mar 20261 months ago
Submission Deadline
Not specified
Future Notice Date
9 Mar 2026Expired
Award Date
30 Mar 20261 months ago
Contract Period
21 Jul 2026 - 29 Dec 2028 2-3 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Pending
Contracts Status
Not Specified

Contracting Authority (Buyer)

Main Buyer
LONDON UNDERGROUND LIMITED
Additional Buyers

TRANSPORT FOR LONDON

Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
E20 1JN
Post Town
East London
Country
England

Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI4 Inner London - East
Small Region (ITL 3)
TLI41 Hackney and Newham
Delivery Location
TLI London

Local Authority
Newham
Electoral Ward
Stratford Olympic Park
Westminster Constituency
Stratford and Bow

Supplier Information

Number of Suppliers
1
Supplier Name

AB CONNECTORS

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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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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