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-055971 · tender

Technology services partner framework (TSPF)

Southern Water Services Limited
South East

The objective of the tender is to select service partners who are capable of providing services for each Lot, to enable SWS, at its election, to award work within a pool of pre-qua

£Up to £280,000,000
⏱ 26 Feb 2026
Posted · 8mo agoView details →
S
Private tender
ocds-h6vhtk-050b50 · tender

Prj_7089 - energy management and optimisation system (EMOS) - pre-market engagement

Southern Water Services Limited
South East

Southern Water Services Limited (SWS) are looking to procure an Energy Management and Optimisation System (EMOS). The following features and capabilities are considered mandatory f

£On request
⏱ 13 Feb 2026
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-060548 · planning

PRj_8061 student placements RFI

Southern Water Services Limited
South East

SW 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 las

£Up to £500,000
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-060517 · tender

PA23 - UK4 - tender notice

Southern Water Services Limited
South East

SW is tendering an existing framework under PA23 rules, and has removed apprenticeships that have ceased to exist and are no longer business relevant, and started offering new appr

£Up to £3,600,000
⏱ 10 Feb 2026
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-05e09c · planningUpdate

Kent bioresources request for information

Southern Water Services Limited
South East

Project Purpose Southern Water Services Limited (SWS) is initiating the Kent Bioresources Project to modernise and consolidate its sludge treatment operations across Kent. The proj

£On request
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-05fb4b · award

PA23 - UK5 - transparency notice emerging contaminants

Southern Water Services Limited
South East

Supply of Chem catcher technology, Prep/deployment, Lab Analysis of Membranes, reporting.​ To perform an extensive sampling exercise, using passive sampling to determine micropollu

£Up to £1,682,125
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-05fa7b · planning

Continuous water quality monitoring

Southern Water Services Limited
South East

Section 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

£Up to £33,750,000
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-05f9b7 · planning

Southern water littlehampton & medway water recycling plants

Southern Water Services Limited
South East

Southern 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

£On request
Posted · 9mo agoView details →
S
Private tender
ocds-h6vhtk-0511e1 · award

PA23 - UK4 - tender notice

Southern Water Services Limited
South East

Southern Water are seeking to establish a framework panel whom have the expertise to support the companies ambitions. Southern Water are seeking expertise in, but not limited to:Re

£On request
⏱ 12 Jun 2025
Posted · 11mo agoView details →
S
Private tender
ocds-h6vhtk-05d7db · planning

Southern water andover link main (ALM) pipeline construction & connection

Southern Water Services Limited
South East

The Andover Link Main (ALM) scheme is being delivered by Southern Water Services (SWS) under the Major Projects Directorate. The ALM project is part of the WRMP programme and is as

£On request
Posted · 11mo agoView details →
S
Private tender
ocds-h6vhtk-05445d · award

Prj_7372 wastewater networks optimisation tender

Southern Water Services Limited
South East

Review and offer insights and proposals on ensuring efficiency and potential savings relating to of any live, reactive or planned Southern Water wastewater tankering operations; Ca

£Up to £7,500,000
⏱ 19 Sept 2025
Posted · 11mo agoView details →
S
Private tender
ocds-h6vhtk-05cd1f · planning

Data modelling - request for information (southern water)

Southern Water Services Limited
South East

At Price Review 2024, the development of Southern Water’s modelling capability has supported the articulation of realistic, affordable and future proof long term business strategie

£On request
Posted · 12mo agoView details →
S
Private tender
ocds-h6vhtk-055972 · planningUpdate

Technology specialist services framework (TSSF)

Southern Water Services Limited
South East

Southern Water is going to market for technology specialist services under a Technology Specialist Services Open Framework Agreement to deliver digital expertise across the followi

£On request
⏱ 17 Nov 2025
Posted · 12mo agoView details →
S
Private tender
ocds-h6vhtk-05a6f6 · planning

Habitat restoration framework

Southern Water Services Limited
South East

Southern Water have an upcoming tender requirement for a Framework for Habitat Restoration. The Framework will support Southern Waters AMP8 commitments to improve environmental and

£Up to £120,000,000
Posted · 12mo agoView details →
S
Private tender
ocds-h6vhtk-05a638 · planning

Habitat restoration framework

Southern Water Services Limited
South East

Southern Water have an upcoming tender requirement for a Framework for Habitat Restoration. The Framework will support Southern Waters AMP8 commitments to improve environmental and

£Up to £120,000,000
Posted · 12mo agoView details →
S
Private tender
ocds-h6vhtk-04f97c · award

PA23 - UK4 - tender notice

Southern Water Services Limited
South East

Southern Water Services ("SWS") seek to implement a new Occupational Health & Health Surveillance Services provision, which will ensure covergage across the full SWS region. The co

£Up to £313,214
⏱ 3 Jul 2025
Posted · 12mo agoView details →
S
Private tender
ocds-h6vhtk-051552 · tender

Southern water andover link main (ALM) pipeline construction & connection

Southern Water Services Limited
South East

The Andover Link Main (ALM) scheme is being delivered by Southern Water Services (SWS) under the Major Projects Directorate. The ALM project is part of the WRMP programme and is as

£Up to £70,000,000
⏱ 27 Oct 2025
Posted · 12mo agoView details →
S
ocds-h6vhtk-038dd0 · award

Instrumentation cancellation notice

Southern Water Services Limited
goodsSouth East

The objective of this tender is select suppliers to the supply of instrumentation. The tender is defined into nine lots, these are considered separate services and Tenderers can te

£On request
Posted · 13mo agoView details →
S
Private tender
ocds-h6vhtk-058e62 · planning

Supply of boundary boxes

Southern Water Services Limited
South East

Supply of boundary boxes to house water meters

£Up to £25,000,000
Posted · 13mo agoView details →
G
Private tender
ocds-h6vhtk-052a81 · award

PA23 - UK5 - transparency notice

GB-PPON-PBJQ-2231-ZRPG
South East

Assessment of New Wastewater Technologies, Processes & Associated Mechanisms

£On request
Posted · 16mo agoView details →