Award GB FTS

Contract extension for provision of SOC/SIEM Managed Service

Thameslink Southern Great Northern Limited (TSGN). Combined from multiple notices.

Stage: Award

the latest stage the buyer has published
Buyer: Thameslink Southern Great Northern Limited (TSGN)
Supplier: Kroll Associates U.K. Limited

taken from the supplier contact on the notice
Value: £595K

net · GBP
Awarded: 18 Sep 2026

the award date on the notice
End date: For subscribers only
Where: London, England

the buyer's address on the notice
First published: 18 Sep 2026

last seen 18 Sep 2026

What the buyer published

Contract extension for provision of SOC/SIEM Managed Service. This is to extend the contract services for 20months, to align to our security licences which are in term until May 2028.

The buyer published this contract more than once.

We combine all notices into one record, so it only appears here once.

Notice	Published	Type	Stage
088912-2026	18 Sep 2026	Transparency notice	award
088916-2026	18 Sep 2026	Award notice	award (current)

View the original notice ↗

History of this contract

An empty stage is useful. For example, no tender stage usually means the buyer used a framework or gave the contract directly.

◌ Planning none

◌ Tender none

● Award on record

● End date For subscribers only

Why we call this SOC, detection and response

Judged against the rules we publish. How we decide.

SOC, detection and response An ongoing service that watches an organisation's systems and responds to attacks.

Bought on its own, as a separate contract The cyber work is a separate contract.