Source: https://tendernation.io/opportunities/01a13bd3-8511-71ef-a8f4-5a0d10eeb54b/central-line-signalling-incremental-upgrade-early-contractor-involvement-varia

awarded GB direct award procedure

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

[Transport for London](https://tendernation.io/buyers/transport-for-london)

Estimated value

Not stated

Published

23 Jan 2026

Deadline

Rolling deadline

## About this tender

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.

Source

Find a Tender (UK) · Notice ocds-h6vhtk-060d7b-2026-01-23T14:26:15Z

[View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-060d7b-2026-01-23T14:26:15Z)

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