What company is XXX part of?
Supermarine
In 1928 Vickers-Armstrongs took over Supermarine as Supermarine Aviation Works (Vickers) Ltd and in 1938 all Vickers-Armstrongs aviation interests were reorganised to become Vickers-Armstrongs (Aircraft) Ltd, although Supermarine continued to design, build and trade under its own name.
Vickers-Armstrongs