Top suppliers
Top suppliers to Southern Water Services Limited
Top-five suppliers hold 91% 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.
71330000
7133000048920000
4892000050530000
5053000035120000
3512000032440000
3244000024950000
2495000071310000
7131000042130000
4213000045230000
4523000073110000
7311000044610000
4461000085140000
8514000072210000
7221000031680000
3168000034920000
3492000079210000
7921000038430000
3843000090730000
90730000Recent contracts
Latest Southern Water Services Limited contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
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
PASSIVE SAMPLING ANALYSIS OF INLETS/OUTLETS
FERA Science Ltd · 2025-12-22
£1.7M
CENTAUR for CSO Spill and Water Quality Compliance – Phase 2
Cura Terrae Water Limited · 2025-12-22
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
BIDDING AGAINST THESE SUPPLIERS?
See your match score against Southern Water Services Limited
ENKII scores your business against live tenders and identifies the certifications you need to compete with the suppliers above.
Open opportunities
Open Southern Water Services Limited tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
Sewer Sealing Request for Information
Deadline: 2026-07-02
£280.0M
Odour Control & Ventilation - Supply, Maintenance, Spares and Hire
Deadline: 2026-07-31
£38.9M
Prj_7015 Pre Market Engagement
Scaffolding Supplier Engagement Event
£24.0M
PA23 - UK2 - Market Engagement Notice Business Management Consultancy
Source to Pay Software Solution ("S2P") and Software Implementation Partner ("SIP")
Scaffolding Retender (Install, Maintain & Inspection)
£12.0M
Market Engagement - Southern Water Smart Metering Programme
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 – Kent Bioresources Project; Treatment and disposal of bioresources (sewage sludge) in Kent (UK)
prj_7508 - Filtration
£4.0M
Section 81 - Manhole Covers - Market Engagement Notice
Open Data RFI
prj_7975 - Blowers & Compressors - Supply & Maintenance
£6.0M
prj_7956 - Major Project SRO HWTWRP - ME4
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.
91%
Top-5 supplier share
32d
Avg response window
29d
Median response window
52mo
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 24 contracts totalling £482.7M between 2023-06-17 and 2026-06-17, working with 18 unique suppliers. Average contract value is £30.2M.
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, ERIKS Industrial Services Ltd. The top five suppliers together hold 91% of contract value.
What does Southern Water Services Limited buy from suppliers?
Southern Water Services Limited's procurement is concentrated in 71330000, 48920000, 50530000, 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 32 days). Standard contract duration is around 52 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 2026-06-17
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.