Bluewater’s patented water treatment technology is used at more than 100 sites from India to South Africa. Its systems increase the rate of enzyme production from naturally occurring bacteria, making sludge treatment more efficient and reducing power consumption by up to 30%. Clients include Anglian Water, Severn Trent and Yorkshire Water, and it is backed by the environmental technology investor Ombu. Led by executive chairman Richard Haddon, 64, sales hit £9.5m last year. The company says it has completed risk assessments to be able to continue to service its clients while the pandemic lasts.