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-06adc4 · award

Habitats regulations assessment (HRA) solent waders & brent geese site mitigation

Southern Water Services Limited
South East

Habitats Regulations Assessment (HRA) to provide alternative land for Solent Wader & Brent Geese.

£Up to £1,305,000
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-06c226 · award

Low voltage monitoring

Southern Water Services Limited
South East

Purchase of low voltage monitoring tool that uses electrical analysis to assess the condition of our electrical circuits, check for water ingress and help us understand our load an

£Up to £782,980
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-0606a5 · tender

Alternative water & incident management - request for information (RFI)

Southern Water Services Limited
South East

Southern 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 w

£Up to £160,000,000
⏱ 30 Jul 2026
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-067238 · award

Prj_8252 - andover link main - BNG

Southern Water Services Limited
South East

The project comprises a new 22.8 km underground water pipeline linking Crab Wood Water Service Reservoir (WSR) near Winchester to Micheldever Road WSR on the outskirts of Andover.

£Up to £1,715,211
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-06ba7e · planning

Market engagement notice - reservoir maintenance

Southern Water Services Limited
South East

Scope of Works includes planned and reactive maintenance, structural repairs, pipework renewals, membrane installations, and asset upgrades, with a core focus on ensuring asset int

£On request
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-06b976 · planning

Market engagement notice - biogas assets, digester maintenance and tanks

Southern Water Services Limited
South East

General Requirements – • Design and specification • Manufacture and/or supply • Installation and commissioning • Planned preventative maintenance (PPM) • Reactive maintenance and r

£On request
Posted · 3mo agoView details →
S
Private tender
ocds-h6vhtk-058c38 · award

Collection & recovery services

Southern Water Services Limited
South East

We are seeking to establish a new Collections & Recovery Services Framework that supports a redesigned operating model. This framework will be flexible, scalable, and adaptable, en

£On request
⏱ 4 Mar 2026
Posted · 4mo agoView details →
S
Private tender
ocds-h6vhtk-05fbfa · award

Centaur for CSO spill and water quality compliance – phase 2

Southern Water Services Limited
South East

1. Implementation of innovative rainfall-enhanced flow release control to optimise system performance. 2. Installation of a CENTAUR gate at a suitable site to enable in-field demon

£On request
Posted · 4mo agoView details →
S
Private tender
ocds-h6vhtk-05cd5a · tender

Sewer sealing request for information

Southern Water Services Limited
South East

Southern Water is committed to reducing storm overflows and managing the volume of water entering the sewer network. A key part of this strategy involves sealing sewers to limit wa

£Up to £280,000,000
⏱ 2 Jul 2026
Posted · 4mo agoView details →
S
Private tender
ocds-h6vhtk-0694c3 · award

PA23 - UK5 - transparency notice THP services

Southern Water Services Limited
South East

The supplier will provide the service for daily operational maintenance and operational support in running the Steam Boiler/THP process plant. To including SW staff training, opera

£Up to £873,600
Posted · 5mo agoView details →
S
Private tender
ocds-h6vhtk-068961 · planning

Prj_7508 - filtration

Southern Water Services Limited
South East

SWS requires a supplier (or suppliers) capable of delivering supply & installation, full inspection, servicing, and overhaul of our complete filtration asset base across all suppor

£Up to £4,000,000
Posted · 5mo agoView details →
S
Private tender
ocds-h6vhtk-067ead · planning

Section 81 - manhole covers - market engagement notice

Southern Water Services Limited
South East

SW 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. T

£On request
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-054851 · tender

Winter gritting

Southern Water Services Limited
South East

Scope of Works - Southern Water is seeking a supplier for winter gritting services across the whole of its region - Sussex, Kent, Hampshire and Isle of Wight. The supplier must be

£Up to £2,000,000
⏱ 5 May 2026
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-06716a · tender

PA23 - UK4 - tender notice

Southern Water Services Limited
South East

Scope of Services 1. Background Southern Water (SW) is re tendering its existing Apprenticeships Framework under Procurement Act 2023 rules and separately running a procurement for

£Up to £3,600,000
⏱ 7 Apr 2026
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-067020 · planning

Open data RFI

Southern Water Services Limited
South East

Background 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

£On request
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-066cfc · planning

Prj_7975 - blowers & compressors - supply & maintenance

Southern Water Services Limited
South East

The service required under this procurement are as follows: • Supply of Assets • Design, Installation and Commissioning • Planned Preventative Maintenance (PPM) • Reactive Maintena

£Up to £6,000,000
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-04ec05 · award

Scaffolding tender (southern water)

Southern Water Services Limited
South East

The nature of the work required is to design, supply, erect, install, inspect, hire, remove, adopt, manage compliance, manage H&S regs (but not limited to) of all scaffolding requi

£Up to £44,000,000
⏱ 29 Oct 2025
Posted · 6mo agoView details →
S
Private tender
ocds-h6vhtk-05880e · award

PRj_7030 minor civils

Southern Water Services Limited
South East

Services Required​ The Minor Civils Framework will support 3 main areas of the business for planned and reactive requirements for Water and Wastewater operations (across all region

£Up to £60,000,000
⏱ 15 Sept 2025
Posted · 8mo agoView details →
S
Private tender
ocds-h6vhtk-06130a · tender

Sustainable drainage and habitat restoration framework

Southern Water Services Limited
South East

The objective of this tender is select suppliers to provide Sustainable Drainage and Habitat Restoration services. Bidders may submit proposals for any or all of the following Lots

£Up to £1,300,000,000
⏱ 4 Mar 2026
Posted · 8mo agoView details →
S
Private tender
ocds-h6vhtk-060795 · tender

Technology services specialist framework (TSSF)

Southern Water Services Limited
South East

The objective of the tender is to select Specialist service providers who are capable of providing services for a maximum of 3 Lots, to enable SWS, at its election, to award work w

£Up to £360,000,000
⏱ 26 Feb 2026
Posted · 8mo agoView details →