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Who we are
Who we are

As a water and sewerage company we provide essential services to 2.9 million customers across the south west of England.
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Our services
Our services

We are recognised by our regulators as one of the leading water and sewerage companies in England and Wales.
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Our purpose
Our purpose

Our customers, the environment and our employees are at the heart of our business.
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Our performance
Our performance

We set out our key priorities for the future, based on wide and continuous conversations with our customers and stakeholders.
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Our future
Our future

We are putting our customers, communities and environment at the heart of what we do.
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Who we are
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Home
Document library
Annual results documents

Annual results documents

Integrated Annual Report 2024-25

Annual Review Summary 2024-25

Annual Performance Report 2024-25

Accounting Methodology Statement 2024-25

Annual Performance Report Tables 2024-25

ODI Performance Model 2024-25

Bioresources Market Information 2024-25

Bioresources Market Monitoring Information 2024-25

Assessing Performance Commitment Benefits - Children and Students Engaged 2024-25

Assessing Performance Commitment Benefits - Bathing Water Experience 2024-25

Assessing Performance Commitment Benefits - Improve Natural Capital 2024-25

Interim Results Press Release 2024

Interim Accounts September 2024

Annual Review Summary 2023-24

Annual Report and Accounts 2023-24

Annual Performance Report 2023-24

Annual Performance Report Tables 2023-24

Annual Performance Report Tables - machine readable version 2023-24*

Annual Performance Report Tables - machine readable metadata 2023-24*

Accounting Methodology Statement 2023-24

ODI Performance Model 2023-24

Bioresources Market Information 2023-24

Interim Results Press Release 2023

Interim Accounts September 2023

* Our Annual Performance Report data tables are made available in a machine-readable format to support open data approaches. For information about the dataset, please see the metadata file which includes open data licence information. For any questions about open data access and use, please contact opendata@wessexwater.co.uk. These files were updated on 6 August 2024 to address industry-wide issues with the original files.

Annual Review Summary 2022-23

Annual Report and Accounts 2022-23

Annual Performance Report 2022-23

Annual Performance Report Tables 2022-23

Accounting Methodology Statement 2022-23

ODI Performance Model 2022-23

Bioresources Market Information 2022-23

Bioresources Market Monitoring Information 2022-23

Interim Results Press Release 2022

Interim Accounts September 2022

Annual Review Summary 2021-22

Annual Report and Accounts 2021-22

Annual Performance Report 2021-22

Annual Performance Report Tables 2021-22

ODI Performance Model 2021-22

Accounting Methodology Statement 2021-22

Bioresources Monitoring Information 2021-22

Bioresources Market Information 2021-22

Interim Results Press Release 2021

Interim Accounts September 2021

Annual Review Summary 2021

Annual Report and Accounts 2021

Annual Performance Report 2021

Annual Performance Report Tables 2021

ODI Performance Model 2021

Accounting Methodology Statement 2021

Bioresources Market Monitoring Information 2021

Interim Results Press Release 2020

Interim Accounts September 2020

Annual Review Summary 2020

Annual Report and Accounts 2020

Annual Performance Report 2020

Annual Performance Report Tables 2020

Accounting Methodology Statement 2020

Interim Accounts September 2019

Interim Results Press Release 2019

Annual Review Summary 2019

Annual Report and Accounts 2019

Annual Performance Report 2019

Annual Performance Report Tables 2019

Accounting Separation Methodology Statement 2019

Annual Review Summary 2018

Annual Report and Accounts 2018

Annual Performance Report 2018

Sustainability Indicators and Accounting 2018

Accounting Separation Methodology Statement 2018

Annual Review Summary 2017

Annual Report and Accounts 2017

Annual Performance Report 2017

Sustainability Indicators and Accounting 2017

Accounting Separation Methodology Statement 2017

Annual Results Summary 2016

Annual Reports and Accounts 2016

Sustainability Indicators and Accounting 2016

Accounting Separation Methodology Statement 2016

Board Leadership, Transparency and Governance Principles 2016

Annual Results and Accounts 2015

Indicators Booklet 2015

Annual Results and Accounts 2014

Annual Results and Accounts 2013

Annual Results and Accounts 2012

Annual Results and Accounts 2011

Annual Results and Accounts 2010

Annual Results and Accounts 2009

Annual Results and Accounts 2008

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Wessex Water Services Ltd, Registered in England No. 2366648 Registered Office: Operations Centre, Claverton Down Road, Claverton Down, Bath BA2 7WW

© 2025 YTL UK Group