Thameslink Southern Great Northern Limited (TSGN): Contract extension for provision of SOC/SIEM Managed Service

Contracting authority

Contracting authority:

Thameslink Southern Great Northern Limited (TSGN)

Public Procurement Organisation Number:

PBTL-7556-PTRN

Address:

24 Monument Street
London
EC3R 8AJ
UK

Contact name:

Kitty Sheeran

Email:

kitty.sheeran@gtrailway.com

Telephone:

000000000

Website:

Not provided

Organisation type:

BODY_PUBLIC

Devolved regulations that apply:

None

Procedure

Procedure type:

Direct award

Scope

Title:

Contract extension for provision of SOC/SIEM Managed Service

Reference number:

PSC0629

Description:

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.

Participation

Suitable for SMEs:

No

Suitable for VCSEs:

No

Lots

Description:

Not provided

Main procurement category:

SERVICES

Above threshold:

Yes

Suitable for SMEs:

No

Suitable for VCSEs:

No

Contract dates (estimated):

01/10/2026 to 31/05/2028

CPV classifications:

72600000 - Computer support and consultancy services.

Contract can be extended:

No

Delivery regions:

UKI31 - Camden and City of London

Suppliers

Title:

Not provided

Supplier:

Kroll Associates U.K. Limited

Companies House:

PZZW-8975-XDWN

Address:

The News Building, Level 6,, 3 London Bridge Street, England
London
SE1 9SG
UK

Email:

stuart.morrison@kroll.com

Telephone:

Not provided

Small or medium-sized enterprise (SME):

No

Voluntary, community or social enterprise (VCSE):

No

Supported employment provider:

No

Public service mutual:

No

Documents

Associated tender documents:

Not provided

Technical specifications:

Not provided

Contract Terms

Contract terms:

Not provided

A conflicts assessment has been prepared and revised:

Yes

Direct Award Justification

Allowed by statutory instrument:

No

Direct award justifications:

Additional or repeat - extension

Justification description:

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.

Special regime:

Utilities

Other organisations