Pennon Group plc is a British water utility company based in Exeter, England.

[2] The company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

[3] By 2016, the company employed approximately 4,500 people, and provided water and sewerage to 1.7 million customers in South West England.

[14] In June 2024, the company announced the appointment of David Sprowle as its new chair, replacing Gill Rider the following month.

[15] The company's main asset is South West Water, which supplies water and sewerage services in Devon, Cornwall, and parts of Dorset and Somerset.