Southern Water Services Limited
- Open tenders
- 0
- Upcoming
- 34
- Contract awards
- 33
- Expiring in 18 months
- 7
Upcoming opportunities
HWTWRP - Biodiversity Net Gain - Market Engagement
Location: South East
UpcomingEngagement closes 24 Nov, 202619 daysSource Find a TenderThe need for the HWTWRP Project is to create a new, resilient and sustainable water supply that will protect and enhance the county’s rare and sensitive chalk streams, while maintaining supplies for communities and the local economy. Biodiversity Net Gain (BNG) for the Project Biodiversity Net Gain (BNG) is an approac
HWTWRP - Biodiversity Net Gain - Market Engagement
Location: South East
UpcomingEngagement closes 24 Nov, 202619 daysSource Find a TenderThe need for the HWTWRP Project is to create a new, resilient and sustainable water supply that will protect and enhance the county’s rare and sensitive chalk streams, while maintaining supplies for communities and the local economy. Biodiversity Net Gain (BNG) for the Project Biodiversity Net Gain (BNG) is an approac
Southern Water Customer Services RFI
Location: South East
UpcomingEngagement closes 19 Oct, 2026Source Find a TenderServices and technology to support customer services
HWTWRP Continued ME4
Location: South East
UpcomingEngagement closes 15 Jan, 20272 monthsSource Find a TenderThe Hampshire Water Transfer and Water Recycling Project (The Project) is a Strategic Resource Option (SRO) and a major part of Southern Water’s long-term strategy to address the significant water supply shortfall in Hampshire. By using advanced water treatment technologies, the Project will transform treated wastewate
Vibration Monitoring
Location: South East
UpcomingEngagement closes 23 Oct, 2026Source Find a TenderSouthern Water is undertaking a pre-market engagement exercise to understand current market capabilities for vibration monitoring solutions across water and wastewater assets. The information gathered will be used to inform future procurement requirements, including technology options, service delivery models, asset co
RFI - Data Centre Transformation & Rationalisation Programme
Location: South East
UpcomingEngagement closes 23 Sept, 2026Source Find a TenderSouthern Water is developing a programme to transform and rationalise its data centre estate. This Request for Information (RFI) is a preliminary market engagement exercise under the Procurement Act 2023, intended to inform and shape the emerging vision ahead of any procurement. Through it, Southern Water is seeking to
Southern Water Fuel Card Services
Location: South East
UpcomingEngagement closes 7 Aug, 2026Value £6.67mSource Find a TenderSouthern Water is seeking information on solutions for Fuel Card services. We operate a fleet of circa 1200 vehicles, 1000 of them being Light Commercial Vehicles. Our current fuel operating costs are Circa £2,000,000 per annum. We are exploring options that will supply our drivers and vehicles with fuel and the means
SMART SYSTEMS PROJECT - REQUEST FOR INFORMATION
Location: South East
UpcomingEngagement closes 24 Jul, 2026Source Find a TenderIntroduction and purpose of the RFI Background For Southern Water, Smart Systems is a major transformation programme and strategic priority spanning the whole water cycle. We recently completed Discovery (Phase 1) defining the initial modules we wanted, a gap analysis, and decision on whether to run Smart Systems as a
Market Engagement Notice - Reservoir Maintenance
Location: South East
UpcomingEngagement closes 25 Sept, 2026Source Find a TenderScope of Works includes planned and reactive maintenance, structural repairs, pipework renewals, membrane installations, and asset upgrades, with a core focus on ensuring asset integrity, water quality protection, and network resilience. Suppliers will be expected to support a range of activities including inspection,
Market Engagement Notice - Biogas Assets, Digester Maintenance and Tanks
Location: South East
UpcomingEngagement closes 14 Aug, 2026Source Find a TenderGeneral Requirements – • Design and specification • Manufacture and/or supply • Installation and commissioning • Planned preventative maintenance (PPM) • Reactive maintenance and repair • Refurbishment and replacement • Process optimisation and performance improvement For the following areas - A. Digester Systems - Sou
prj_7508 - Filtration
Location: South East
UpcomingEngagement closes 21 May, 2026Value £4.00mSource Find a TenderSWS requires a supplier (or suppliers) capable of delivering supply & installation, full inspection, servicing, and overhaul of our complete filtration asset base across all supported manufacturers. The supplier must provide OEM‑standard maintenance, guaranteed access to genuine OEM parts, and 24/7/365 breakdown and te
Section 81 - Manhole Covers - Market Engagement Notice
Location: South East
UpcomingEngagement closes 1 Jul, 2026Source Find a TenderSW is seeking a supplying partner that can manage the full lifecycle management of Section 81 manhole cover covers and frames notifications across the Mainland and Isle of Wight. This includes receiving and processing reports from DfT Street Manager and other channels, extracting key details, and creating the necessary
Open Data RFI
Location: South East
UpcomingEngagement closes 8 Apr, 2026Source Find a TenderBackground Southern Water is undertaking a Data, Analytics and AI Transformation Programme to become the UK’s most data-intelligent water utility. A key pillar of this strategy is Open Data increasing transparency, enabling innovation, and improving trust with customers, regulators and local authorities. As part of o
prj_7975 - Blowers & Compressors - Supply & Maintenance
Location: South East
UpcomingEngagement closes 10 Apr, 2026Value £6.00mSource Find a TenderThe service required under this procurement are as follows: • Supply of Assets • Design, Installation and Commissioning • Planned Preventative Maintenance (PPM) • Reactive Maintenance • Hire • Compliance & Safety Services Assosiated Services
RFI for IT & OT Managed Detection and Response (MDR) Services
Location: South East
UpcomingEngagement closes 27 Jan, 2026Source Find a TenderRFI for IT & OT Managed Detection and Response (MDR) Services, to understand the current market to deliver on both OT & IT services
Alternative Water & Incident Management - Request for Information (RFI)
Location: South East
UpcomingEngagement closes 2 Feb, 2026Source Find a TenderSouthern Water (SW) is seeking information from suppliers in relation to a potential procurement exercise. The information is not part of the procurement exercise, but your input will be critical in the development of the sourcing strategy and tender documentation. Southern Water is responsible for providing, maintain
Prj_8061 Student Placements RFI
Location: South East
UpcomingEngagement closes 28 Jan, 2026Value £500.00kSource Find a TenderSW looks to support student placements as part of our Early Careers offering. These student placements provide potential feeder pipelines into our Graduate programmes. Over the last 2 years SW has facilitated around 10-15 students per calendar year to utilise a placement within our business. We look to build both volum
Kent Bioresources Request for Information
Location: South East
UpcomingEngagement closes 31 Mar, 2026Source Find a TenderProject Purpose Southern Water Services Limited (SWS) is initiating the Kent Bioresources Project to modernise and consolidate its sludge treatment operations across Kent. The project forms a key part of SWS’s long-term bioresources strategy to deliver a more efficient, resilient, and compliant asset base aligned with
Continuous Water Quality Monitoring
Location: South East
UpcomingEngagement closes 29 Jan, 2026Value £33.75mSource Find a TenderSection 82 of the Environment Act 2021 requires sewerage undertakers, operating wholly or mainly in England, to continuously monitor the quality of the receiving water upstream and downstream of storm overflows and discharges from wastewater treatment works, enabling impact assessment of discharges from these assets on
Southern Water Littlehampton & Medway Water Recycling Plants
Location: South East
UpcomingEngagement closes 28 Feb, 2026Source Find a TenderSouthern Water is advancing two strategic water recycling schemes, Medway and Littlehampton, to deliver up to 33.4 million litres per day of purified recycled water during drought conditions. These schemes will reduce abstraction from sensitive river systems, support environmental destinations, and ensure resilient wat
Top suppliers
| Clancy Docwra | £39.39m |
| Allen Fencing Ltd | £32.22m |
| LITTLEWOODS FENCING LIMITED | £32.22m |
| Binns Fencing Ltd | £32.22m |
| Edmundson Electrical Ltd | £26.00m |
| Eriks Industrial Services Limited | £24.00m |
| Securi-Plex Limited | £14.45m |
| Reliance High-Tech Ltd | £9.63m |
What they buy
- Sewage, refuse, cleaning and environmental services23 notices in the last 3 years
- IT services: consulting, software development, Internet and support19 notices in the last 3 years
- Construction structures and materials; auxiliary products to construction (except electric apparatus)18 notices in the last 3 years
- Business services: law, marketing, consulting, recruitment, printing and security17 notices in the last 3 years
- Construction work16 notices in the last 3 years
- Architectural, construction, engineering and inspection services16 notices in the last 3 years
- Industrial machinery11 notices in the last 3 years
- Transport equipment and auxiliary products to transportation9 notices in the last 3 years