Pennon Group plc is a United Kingdom-based company, which is engaged in providing environmental infrastructure and customer services. The Companyâs business is operated through two principal subsidiaries. Southwest Water Limited, providing water and wastewater services in Devon, Cornwall and parts of Dorset and Somerset and water only services in parts of Dorset, Hampshire, Wiltshire, and Bristol. Through Southwest Water, Bristol Water and Bournemouth Water, the Company is focused on providing water and wastewater services. Pennon Water Services is a business-to-business (B2B) water specialist providing water retail services for business customersâ water management needs. The Company operates through two segments: Water segment, and Non-household retail business segment. The water segment comprises the regulated water and wastewater services undertaken by Southwest Water. The non-household retail business reflects the services provided by Pennon Water Services.