---
title: "Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)"
ocid: "ocds-h6vhtk-060d7b"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060d7b"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-060d7b.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-060d7b.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "TRANSPORT FOR LONDON"
published: "2026-01-23"
---

# Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)

Buyer: TRANSPORT FOR LONDON  
Current stage: Award  
OCID: ocds-h6vhtk-060d7b

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## Summary

Transport for London has completed the procurement process for the Central Line Signalling Incremental Upgrade, specifically for a 12-month extension under the Early Contractor Involvement contract as part of their Central Line Signalling Incremental Upgrade Project for the Eastern section, known as Wayside East. This contract, titled "Central Line Signalling Incremental Upgrade Early Contractor Involvement - Variation 3 (Proof of Concept)," was directly awarded to SIEMENS MOBILITY LIMITED due to their unique capability to continue integrating new equipment with existing systems. The procurement falls under the industry category of railway signalling works and covers multiple regions across the United Kingdom, including UKC through UKK. Key dates include the contract start on 1st April 2026, and it is set to conclude by the 31st March 2027. The awarded value is £1,700,000, grossing up to £2,040,000, and approval was granted to cover the 12-month extension budget.

This tender presents significant opportunities for businesses involved in railway infrastructure and signalling works. Companies with expertise in railway signalling, systems integration, and those possessing the necessary intellectual property rights are particularly well-positioned to benefit, considering the direct award procurement method was chosen due to the exclusive capabilities of the supplier. While this particular opportunity was awarded directly, similar upcoming projects might offer business growth potential, especially for those able to demonstrate expertise in advanced signalling solutions and the ability to work within complex, operational systems without disruption. Business growth is most likely for larger enterprises with the right technical know-how and capability to manage such scale of integration projects effectively.

## Notice

This variation relates to a 12-month extension of the Early Contractor Involvement (ECI) contract with Siemens Mobility under the Central Line Signalling Incremental Upgrade Project (CSIP) for the Eastern section of the Central Line, known as Wayside East. In addition, approval is requested for an additional procurement authority to cover the 12 month extension budget.

### Procurement Information

Siemens holds the necessary data protocols and software tools required to integrate new equipment with the existing systems without disrupting operations. It is also not feasible to engage an alternative contractor to undertake works or services on these systems.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/006250-2026 |
| Notice type | UK5 - Transparency Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 23 Jan 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 23 Jan 2026 |
| Contract period | 31 Mar 2026 - 31 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £1,700,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Pending |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | TRANSPORT FOR LONDON |
| Locality | LONDON |
| Post town | East London |
| Postcode | E20 1JN |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI41 Hackney and Newham |
| Local authority | Newham |
| Electoral ward | Stratford Olympic Park |
| Westminster constituency | Stratford and Bow |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | SIEMENS MOBILITY |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45234115 - Railway signalling works

## Release History

- 23 Jan 2026 at 14:26 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/006250-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/006250-2026
  23rd January 2026 - Transparency notice on Find a Tender

## Notice URLs

- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.mobility.siemens.com/uk/en.html

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-060d7b. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-060d7b.json.