Contracts Finder notice
Managed Security Services
Authority: GREENSQUAREACCORD LIMITED
What is being bought
Published requirement descriptionThe service includes Managed Detection and Response, Security Information and Event
Management, Endpoint Detection and Response supported by Next Generation
Anti?Virus, identity monitoring, cyber threat intelligence, threat hunting, cyber maturity
assessments, efficiency testing and full incident response readiness. These capabilities
collectively enable the proactive identification, investigation and mitigation of threats
across the GSA's digital environment.
Managed Detection and Response (MDR). Enterprise data will be captured and analysed
for indicators of attack or compromise, which, if discovered, shall initiate a first response.
This response will be either automated or human, depending on the source of the
detection. GSA require Level 1 and 2 support, and the first one hour of any Level 3
investigations. Support levels are defined below.
Level 1
The first line of security analysts who manage security tools and run regular
reporting. At this level, alerts and alert urgency will be determined by the security
team. Decisions about escalation to Level 2 will also be undertaken at this level.
Level 2
The second line of security analysts / engineers who have the expertise required to
get to the root of a problem and assess which part of the enterprise may be
compromised. Remediation and repair of problems is expected and issues for
additional investigation will be highlighted.
Level 3
The third line of security engineers / incident responders, which consists of highly
skilled technical resource. If required, personnel will use advanced detection
methods (threat hunting) to identify and neutralise the threat, providing remediation
advice to the Client's IT team.
Key deliverables:
- Managed Detection and Response (MDR) Service
o 24/7x365 Threat Detection & Response
o Ongoing Detection Engineering
o Ongoing Use Case Development
o Cyber Threat Intelligence (CTI)
o Threat Hunting
o Cyber Maturity Assessment
o Incident Response (first 1 hour of IR)
o Dedicated Customer Success Manager
- SIEM Licensing (Splunk) 100GB
- CrowdStrike EDR Licensing with Falcon Mobile (1650 endpoints)
Published procurement details
- Procedure
- Call-off from a framework agreement
- Buyer reference
- 004
- Category
- Services
- Tender status
- Complete
- Award status
- Active
- Suitable for SMEs
- Yes
- Suitable for voluntary, community and social enterprises
- No
- Tender deadline
- Procurement method
- Selective
- Item 1: Delivery locations as published
- England, United Kingdom
Key dates
Published dates- Award decision16 Mar 2026
- Contract starts1 Apr 2026
- Notice published22 Jun 2026
- Contract ends31 Mar 2028
Contracting authority & participating public bodies
- GREENSQUAREACCORD LIMITEDContracting authority
- Identifier
- sid4gov.cabinetoffice.gov.uk/4jRH3Z2S · GB-SRS
Suppliers named on the notice
- Cysiam LimitedSupplier
- Identifier
- 11422969 · GB-COH
- Voluntary, community or social enterprise
- No
- Business size
- Large
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
Source record
- Source
- Contracts Finder
- Notice language
- en
- Release reference
- ocds-b5fd17-9c9394c3-b0e2-4d8a-83fb-02ba2cb8402b-2026-06-22T10:49:03+01:00
- Published
- 22 Jun 2026
- Latest update
- 22 Jun 2026
- Procedure reference
- ocds-b5fd17-9c9394c3-b0e2-4d8a-83fb-02ba2cb8402b
- Contract reference
- ocds-b5fd17-9c9394c3-b0e2-4d8a-83fb-02ba2cb8402b-1