Until 1946 it was R Malcolm & Co, taking its new name from the businessman Noel Mobbs and the aircraft designer Marcel Lobelle.
R Malcom Co. developed the "Malcolm hood", an improved visibility aircraft canopy for, initially, the Supermarine Spitfire during the war.
To accommodate this, a drawing office and experimental works was set up at White Waltham in Berkshire with production activities staying at Slough.
Post war, ML Aviation made, among other products, aircraft handling and weapons stores equipment.
In 1990, ML Aviation's holding company merged the White Waltham activities with newly acquired Wallop Industries at Andover, Hampshire; ML Engineering subsequently moved from Slough to Andover.