System operational · UK tenders

Buyer profile

Southern Water Services Limited

privateUKJ27englandGB

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Total contracts

62

Known spend

£3bn

34 disclosed

Average value

£87m

Per contract

Active suppliers

10

Last 5 years

Open1Awarded24Closed14

Top suppliers

Last 5 years
  1. 1

    STANTEC UK LIMITED

    2 winslatest 10 Jul 2026

    £11m

  2. 2

    Wild Capital 1 Ltd

    2 winslatest 03 Jul 2026CH 14747595

    £3m

  3. 3

    AAA BUILDING AND CIVIL ENGINEERS LIMITED

    1 winlatest 09 Feb 2026CH 10129069

    £60m

  4. 4

    D R CLARK SERVICES LLP

    1 winlatest 09 Feb 2026CH OC334765

    £60m

  5. 5

    G & L ENVIRONMENTAL LTD

    1 winlatest 09 Feb 2026CH 07745509

    £60m

  6. 6

    C J THORNE & CO LIMITED

    1 winlatest 09 Feb 2026CH 00358221

    £60m

  7. 7

    Tone Scaffolding Services Limited

    1 winlatest 16 Mar 2026

    £44m

  8. 8

    Formula Scaffolding Ltd

    1 winlatest 16 Mar 2026

    £44m

  9. 9

    TURNER & TOWNSEND INFRASTRUCTURE LIMITED

    1 winlatest 10 Jul 2026CH 12495519

    £24m

  10. 10

    GARDINER & THEOBALD LLP

    1 winlatest 10 Jul 2026CH OC307124

    £24m

What they buy

By CPV category
  • Radio, TV & telecomsCPV 32

    1 contract · £2m

  • Repair & maintenanceCPV 50

    1 contract

  • Electrical equipmentCPV 31

    1 contract

Tender activity

Notices published per month — last 24 months

18 active months
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All contracts (62)

S
Private tender
ocds-h6vhtk-064a00 · planning

Hwtwrp continued ME4

Southern Water Services Limited
South East

The 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 s

£On request
Posted · 4d agoView details →
S
Private tender
ocds-h6vhtk-0781d6 · planning

Southern water customer services RFI

Southern Water Services Limited
South East

Services and technology to support customer services

£On request
Posted · 5d agoView details →
S
Private tender
ocds-h6vhtk-078164 · award

Hydraulic model verification

Southern Water Services Limited
South East

Purchase of Hydraulic Modelling Verification services.

£Up to £1,194,000
Posted · 5d agoView details →
S
Private tender
ocds-h6vhtk-0780ea · planning

Vibration monitoring

Southern Water Services Limited
South East

Southern Water is undertaking a pre-market engagement exercise to understand current market capabilities for vibration monitoring solutions across water and wastewater assets. The

£On request
Posted · 6d agoView details →
S
Private tender
ocds-h6vhtk-077d70 · award

Isle of wight water recycling plant biodiversity net gain

Southern Water Services Limited
South East

The habitat units must be secured and purchased prior to the commencement of construction activities in order to satisfy planning requirements and enable discharge of the Biodivers

£Up to £2,119,715
Posted · 1w agoView details →
S
Private tender
ocds-h6vhtk-05024e · award

Prj_7119 - natural gas supply (non-domestic)

Southern Water Services Limited
South East

Southern Water Services Limited (SWS) is seeking to award a single supplier Ofgem licenced supplier for provision of natural gas to all sites within their portfolio, in accordance

£On request
⏱ 10 Oct 2025
Posted · 3w agoView details →
S
ocds-h6vhtk-044ef8 · award

Prj_6010 - telemetry framework lots 5a, 5b and 5c

Southern Water Services Limited
goodsSouth East

Southern Water Services is buying remote telemetry outstations (field devices) with battery backup for monitoring, controlling and diagnosing water and wastewater assets, both large and small, plus related spare parts and support services.

££39,849 — £1,900,549
Posted · 3w agoView details →
S
Private tender
ocds-h6vhtk-06f87a · tender

Boundary boxes

Southern Water Services Limited
South East

Supply of standard and non-standard boundary boxes. Supply of 25mm standard boundary boxes and associated components for use within Southern Water's water distribution network, sup

£On request
⏱ 7 Oct 2026
Posted · 4w agoView details →
S
Private tender
ocds-h6vhtk-06f823 · award

Hire of primary treatment equipment (lamella)

Southern Water Services Limited
South East

A short term contract for Hire/purchaset of primary treatment units (lamella) until the full Filtration framework is established.

£On request
Posted · 1mo agoView details →
S
OpenPrivate tender
ocds-h6vhtk-06f47b · tender

Marketing & communications - dynamic market intention

Southern Water Services Limited
South East

A Marketing & Communications Dynamic Market Scope designed to provide access to a comprehensive range of specialist marketing, communications, digital, branding, reporting, and sta

£On request
Posted · 1mo agoView details →
S
Private tender
ocds-h6vhtk-06f01c · planning

RFI - data centre transformation & rationalisation programme

Southern Water Services Limited
South East

Southern 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 t

£On request
Posted · 1mo agoView details →
S
Private tender
ocds-h6vhtk-05d283 · tender

Warehouse racking supply maintenance and inspection

Southern Water Services Limited
South East

The nature of the work required is to design, supply, erect, install, inspect, remove, manage H&S regs (but not limited to) of all Warehouse racking, install and certification requ

£Up to £800,000
⏱ 7 Oct 2026
Posted · 1mo agoView details →
S
Private tender
ocds-h6vhtk-06e21c · award

Standpipes hire

Southern Water Services Limited
South East

The services to be provided by the Supplier are: • The external and internal hire of temporary metered standpipes as detailed in section 1.5.3 (Standpipe Specification), to Souther

£On request
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-0606ff · tender

Managed detection and response tender

Southern Water Services Limited
South East

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

£On request
⏱ 21 Sept 2026
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-06dbf5 · award

Purchase of biodiversity performance commitment (BPC) units

Southern Water Services Limited
South East

The purchase of 19 Biodiversity Performance Commitment (BPC) Units.

£Up to £494,000
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-058236 · award

Customer research services framework

Southern Water Services Limited
South East

SWS intends to establish a framework panel whom have the expertise to support the company's objectives. The objective of this tender is to select suppliers to provide customer rese

£Up to £4,500,000
⏱ 5 May 2026
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-06d310 · planning

Southern water fuel card services

Southern Water Services Limited
South East

Southern 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

£Up to £6,666,666
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-05e275 · award

Business management consultancy

Southern Water Services Limited
South East

Southern Water Services are seeking to establish a framework panel whom have the expertise to support the companies ambitions. SWS are seeking business management consultancy & rel

££3,200,000 — £24,000,000
⏱ 17 Dec 2025
Posted · 2mo agoView details →
S
Private tender
ocds-h6vhtk-06c7f1 · planning

Smart systems project - request FOR information

Southern Water Services Limited
South East

Introduction 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 recen

£On request
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-05accb · tenderUpdate

Odour control & ventilation - supply, maintenance, spares and hire

Southern Water Services Limited
South East

Tender to procure services for the following combined scope of work; Supply, planned and reactive maintenance, of Odour Control Assets. Supply, planned and reactive maintenance, of

£Up to £38,864,873
⏱ 10 Jul 2026
Posted · 3mo agoView details →