Severn Trent Water is the group's regulated water business. It supplies water and wastewater collection and treatment services for around 8 million people across the Midlands and Mid-Wales.
Biffa is one of the largest single suppliers of waste management services in the UK. It collects, treats, recovers and disposes of municipal, commercial and industrial waste nation-wide and in Belgium.
Severn Trent Laboratories is a leading environmental testing laboratory company in the US and the UK.
Severn Trent Services supplies products and services associated with water, wastewater and contaminated land. Severn Trent Water International provides a range of private sector management and consultancy services in Europe and the developing world.
Severn Trent Systems 'Aseriti' supplies IT services and solutions focusing upon managed services, e-business and consultancy. 'Worksuite' supplies a range of work management software products and related services.
Severn Trent Property develops facilities in the UK primarily for the distribution, retail and industrial sectors.
Charles Haswell and Partners is an international consultancy with experience in a wide range of engineering and environmental disciplines.