Qualis, Qualis Residential, Qualis Commercial, Qualis Warm Home, Qualis Wind, Qualis Solarfield, Qualis SolarBee, Qualis Maintenance, Qualis Greentech Training Academy, and Umbrella by Qualis are divisions and trading names of Qualis Energy Limited (Reg No. 16320369) and is registered in England and Wales at Unit 10, Brailwood Close, Bilsthorpe, Nottinghamshire, NG22 8UG.
​
Qualis Energy Limited holds 50% of the shares of Qualis Renewables Limited.
​
Qualis Energy Limited is wholly owned by Lime Arnold Group Limited.