Official UK procurement notice
Contract extension for provision of SOC/SIEM Managed Service
Authority: Thameslink Southern Great Northern Limited (TSGN) (Public body)
What is being bought
Published requirement descriptionContract 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 lotProcurement structure
single lot · no lot value publishedLot #1Awarded
Procedure terms & legal framework
From the official record- Procedure method
- Direct award
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Awarded without competition
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Utilities
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Direct award (no call for competition)
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 18 Sept 2026, 17:23 BST
- Last source update
- 18 Sept 2026, 17:26 BST
- Authority reference
PSC0629- FTS notice number
2026/S 000-088916- Latest notice
- Contract award notice (UK6)
- Delivery area
- Official registry OCID
ocds-h6vhtk-0775eeFind a Tender
- Why no open competition
- Additional Repeat Extension Partial Replacement
- Published justification
Under the Procurement Act 2023, under Schedule 5, item 7: Additional or Repeat Goods, Services or Works.
The Direct Award is justified under item 7 on the basis that: · The requirement constitutes an extension to existing services currently provided by the incumbent supplier. A change of supplier would also mean a fundamental change to technology and integrations across the whole business which would create inconsistencies and incompatibility. Continuity of service is essential to maintain operational effectiveness and minimise risk to the organisation, a change would take significant time and resource.
Notice history
3 events · 2 releases on Find a Tender · since 18 Sept 2026- Transparency notice published18 Sept 2026, 17:23 BSTUK5
- Contract award notice published18 Sept 2026, 17:26 BSTUK6
- Contract signature expected30 Sept 2026, 23:59 BSTscheduled
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Kroll Associates U.K. Limited1 Oct 2026 – 31 May 2028 | £595,220 | 18 Sept 2026 | Awarded |
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- Kroll Associates U.K. LimitedAwarded supplier
Official documents & specifications (2)
Official links; attachments are not copiedNotices published for this procedure
- Contract award notice Contract award notice on Find a Tender
- Transparency notice Transparency notice on Find a Tender