Managed Detection and Response Tender

Southern Water Services Limited

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Deadline

21 September 2026 at 16:00

Value

£10m

Location

Worthing

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Description

The objective of this tender is to select a single supplier to provide a combined Managed Detection and Response (MDR) service covering SWS’ Corporate/IT and Operational Technology (OT) environments. SWS is seeking a 24/7/365 MDR service providing continuous monitoring, threat detection, triage, investigation, IT and OT incident response, case management, reporting and assurance evidence. The MDR Service must support SWS in meeting its regulatory and assurance obligations, including CAF, NIS and DWI requirements SWS operates an existing security tooling estate (e.g. Nozomi Networks, Cisco Cyber Vision and CrowdStrike). The MDR Service Provider will be expected to consume and integrate telemetry from these existing SWS tooling sources rather than replace them by default. Where a Tenderer identifies material gaps in the existing tooling estate, they should propose solutions to address those gaps as part of their proposed design and tender response. Estimated contract value for a 3-year contract with options to extend by 1-year and a further 1-year is £8.5m

Contracting Authority

Organisation
Southern Water Services Limited
Organisation ID
GB-PPON-PBJQ-2231-ZRPG
Address
Southern Water, Southern House, Worthing, Bn13 3NX, United Kingdom
Region
UKJ27

Buyer Contact

CPV Classifications

Reference Details

Published
12 August 2026 at 09:41
Reference
Prj_8501
Enquiry Deadline
21 August 2026 at 16:00
Procurement Category
services
Procedure Type
Competitive flexible procedure
Official Portal
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