Top suppliers
Top suppliers to Southern Water Services Limited
Top-five suppliers hold 87% of contract value — a concentrated market.
Procurement categories
What Southern Water Services Limited buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
71330000489200005053000079410000351200003244000024950000713100004213000045230000731100004461000085140000722100003168000038430000349200007921000090730000Recent contracts
Latest Southern Water Services Limited contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
prj_6961 Business Management Consultancy Framework - Lot 1a Regulatory Advice
Qasr Limited · 2026-07-14
£54.4M
Habitats Regulations Assessment (HRA) for the Solent Waders & Brent Geese Site Mitigation
Wild Capital 1 Ltd · 2026-07-03
£1.3M
Habitats Regulations Assessment (HRA) for the Solent Waders & Brent Geese Site Mitigation
Wild Capital 1 Ltd · 2026-06-04
£1.3M
SUPPORT AND MAINTENANCE SERVICES FOR THERMAL HYDROLYSIS PROCESS PLANT
PBJ ENGINEERING SERVICE LTD · 2026-05-08
£874K
SUPPORT AND MAINTENANCE SERVICES FOR THERMAL HYDROLYSIS PROCESS PLANT
PBJ ENGINEERING SERVICE LTD · 2026-05-08
£874K
Andover Link Main BNG
Wild Capital 1 Ltd · 2026-03-24
£1.7M
Lot 1 Kent
Tone Scaffolding Services Limited · 2026-03-17
Procurement of a Framework Agreement for Household and Non-Household Water Efficiency Audits, Retrofitting Services and Customer Engagement Services
Aqualogic (WC) Limited · 2026-02-20
Minor Civils
AAA BUILDING AND CIVIL ENGINEERS LIMITED · 2026-02-09
£60.0M
CENTAUR for CSO Spill and Water Quality Compliance – Phase 2
Cura Terrae Water Limited · 2025-12-23
CENTAUR for CSO Spill and Water Quality Compliance – Phase 2
Cura Terrae Water Limited · 2025-12-22
PASSIVE SAMPLING ANALYSIS OF INLETS/OUTLETS
FERA Science Ltd · 2025-12-22
£1.7M
PA23 - UK5 - Transparency Notice Emerging Contaminants
FERA Science Ltd · 2025-12-22
Supply and management of Polymer
Kemira Chemical UK Ltd · 2025-11-24
£20.0M
Source to Pay Software Solution
Coupa Software Inc · 2025-11-20
Regulatory Assurance and Internal Audit Framework
Aqua Consultants Limited · 2025-11-07
Wastewater Networks Optimisation
Flow Management Solutions Ltd · 2025-10-20
£7.5M
OCcupational Health & Health Surveillance Services
Health Partners Group Ltd · 2025-10-01
£313K
prj_6110 Security Fences, Boundary Fences and Associated Products
Binns Fencing Limited · 2025-09-30
£32.2M
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Open opportunities
Open Southern Water Services Limited tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
Kent Bioresources Request for Information
Market Engagement – Kent Bioresources Project; Treatment and disposal of bioresources (sewage sludge) in Kent (UK)
Market Engagement – Kent Bioresources Project; Treatment and disposal of bioresources (sewage sludge) in Kent (UK)
Strategic Waste Management
Strategic Waste Management
Market Engagement - Southern Water Smart Metering Programme
Half Hourly Portfolio - Electricity Supply and Associated Services
Half Hourly Portfolio - Electricity Supply and Associated Services
Market Engagement Notice - Biogas Assets, Digester Maintenance and Tanks
Market Engagement Notice - Reservoir Maintenance
prj_7508 - Filtration
£4.0M
Section 81 - Manhole Covers - Market Engagement Notice
Open Data RFI
prj_7975 - Blowers & Compressors - Supply & Maintenance
£6.0M
RFI for IT & OT Managed Detection and Response (MDR) Services
Prj_8061 Student Placements RFI
£500K
prj_7956 - Major Project SRO HWTWRP - ME4
Alternative Water & Incident Management - Request for Information (RFI)
Continuous Water Quality Monitoring
£33.8M
Southern Water Littlehampton & Medway Water Recycling Plants
Pipeline
Contracts expiring in the next 12 months
When these contracts end, Southern Water Services Limited typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
PA23 - UK5 - Transparency Notice Emerging Contaminants
Expires: 2026-12-22
PASSIVE SAMPLING ANALYSIS OF INLETS/OUTLETS
Expires: 2026-12-22
£1.7M
CENTAUR for CSO Spill and Water Quality Compliance – Phase 2
Expires: 2027-02-20
CENTAUR for CSO Spill and Water Quality Compliance – Phase 2
Expires: 2027-02-20
SUPPORT AND MAINTENANCE SERVICES FOR THERMAL HYDROLYSIS PROCESS PLANT
Expires: 2027-05-14
£874K
SUPPORT AND MAINTENANCE SERVICES FOR THERMAL HYDROLYSIS PROCESS PLANT
Expires: 2027-05-14
£874K
Market analysis
Bidding into Southern Water Services Limited — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
87%
Top-5 supplier share
31d
Avg response window
29d
Median response window
72mo
Avg contract duration
Frequently asked
Common questions about selling to Southern Water Services Limited
How much does Southern Water Services Limited spend on procurement?
Southern Water Services Limited awarded 26 contracts totalling £538.4M between 2023-08-01 and 2026-08-01, working with 19 unique suppliers. Average contract value is £29.9M.
Who are Southern Water Services Limited's top suppliers?
The largest suppliers to Southern Water Services Limited by total award value are Knowlton and Newman Ltd, Bridges Electrical Engineers Ltd, Qasr Limited. The top five suppliers together hold 87% of contract value.
What does Southern Water Services Limited buy from suppliers?
Southern Water Services Limited's procurement is concentrated in miscellaneous engineering services, office automation software package, repair and maintenance services of machinery, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for Southern Water Services Limited contracts?
Southern Water Services Limited publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.
What's the typical response window for Southern Water Services Limited tenders?
Southern Water Services Limited typically gives suppliers a median of 29 days to respond (average 31 days). Standard contract duration is around 72 months.
Continue reading
Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is Southern Water Services Limited's largest spend area.
INDEX
All UK public-sector buyers
Browse procurement profiles for every UK government department and major buyer.
Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-08-01
This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.
Source portals
- · Find a Tender (find-tender.service.gov.uk)
- · Contracts Finder
- · Spend Network
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.