How to win: Southern Track and Rail Systems Phase 3

A works contract from Thameslink Southern Great Northern Limited (TSGN), worth £18,000,000. Below: what it involves and how to write a winning bid for it.

Buyer

Thameslink Southern Great Northern Limited (TSGN)

Value

£18,000,000

Closing date

20 November 2026

About this contract

The purpose of the Procurement is to select a supplier or suppliers to deliver the Critical Junction/Plain Line Renewals and Signalling Cable replacement at various Depots. Assets to be addressed are at the following locations: Brighton Heavy Maintenance Depot Selhurst Heavy Maintenance Depot Streatham Hill Light Maintenance Depot Eastbourne Light Maintenance Depot Letchworth City Light Maintenance Depot Littlehampton Light Maintenance Depot Horsham Light Maintenance Depot For more information about this opportunity, please visit the eSourcing portal at: https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Electricity-power-lines./TV485Z8376 To respond to this opportunity, please click here: https://gtr.delta-esourcing.com/respond/TV485Z8376

How to win contracts like this

✓Answer against the marking scheme, not the question text — Thameslink Southern Great Northern Limited (TSGN) scores each response, so map your evidence to the published criteria and weightings.
✓At £18,000,000, expect quality and social value to carry a large share of the score — price alone rarely wins works work.
✓Show recent, comparable delivery: name similar works contracts you've delivered for public bodies, with measurable outcomes.
✓Start early: it closes 20 November 2026 and a strong bid takes iteration.

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