
Who We Are
Founded in 1989, Pennon is a FTSE 250 listed company and one of the leading businesses in the UK water sector, providing clean water and wastewater services through our businesses across the Great South West, serving a population of c.3.5 million, across nine counties and c.380,000 business customers across the UK.
Our customers rely on us
We provide over 870 million litres of safe, clean drinking water, to an estimated population of c.3.5 million people every day. And when they’ve finished with it, over 19,000km of sewers take used water and surface water run-off to one of our 653 wastewater treatment works where it is treated, tested and safely returned to the environment.
We have expanded our support to vulnerable customers in these difficult times with c.100,000 customers benefitting from one or more of our affordability initiatives.
Our team
We are a dedicated team of c.3,000 people, working 24 hours a day, 365 days a year to deliver essential services for our customers.
Living our values
We know it’s not only what we do, but how we do it that matters to our customers and communities and to ourselves. That’s why we live our values across the Group, every day.
Investing in our future
We’re proud to be investing in future talent through graduate and apprenticeship schemes across the Group. These schemes will give over 500 talented people the opportunity to join us by 2025.
We were also one of the first companies to sign up to the Government’s Kickstart programme, offering young people the chance to gain training, support and valuable work experience. Over half of our Kickstarters have now joined our team.
And we are going further, faster with our environmental investment to achieve significant improvements in performance that benefit every one of us.
Our Businesses
Regulated water and wastewater services
Our largest business, South West Water provides water and wastewater services to a population of c.1.8 million in Cornwall, Devon and parts of Dorset and Somerset, which increases to c.10 million of seasonal visitors during the year.
We acquired Bristol Water in June 2021 and gained CMA clearance in March 2022. The merger of South West Water and Bristol Water completed on 1 February 2023 with the combined water business now operating under one licence. The merger and statutory transfer mark a further step on our integration blueprint, focused on bringing together the best of the best to realise operational and service improvements across the Group. Bristol Water provides water only services to a population of c.1.2 million, in the city of Bristol and surroundings of Bristol.
Bournemouth Water, previously acquired by, and merged with South West Water, provides water only services to a population of c.0.5 million people in parts of Dorset, Hampshire and Wiltshire.
SES Water was acquired by Pennon Group in January 2024. They supply 160 million litres of clean water every day to over 750,000 people in parts of Surrey, Kent and south London. Their supply area is 322 square miles extending from Morden and South Croydon in the north to Gatwick Airport in the south and from Cobham, Leatherhead and Dorking in the west to Edenbridge in the east.
B2B retail services
Pennon Group is the majority shareholder of Pennon Water Services Limited, a water specialist company providing water retail services to non-household customer accounts across Great Britain with a 6% market share. Pennon Water Services is an 80:20 joint venture with South Staffs.
Through our acquisition of Bristol Water, we acquired a 30% share in water2business, a joint venture with Wessex Water – led by a strong team who are focused on delivering an outstanding customer experience. With a c.6% market share, water2business offers tailored water and wastewater management helping customers improve efficiency and deliver savings.