 Kier & Co Ltd, which remained the company's principal title for over four decades.By the late 1930s Kier had moved its head office to Belgravia in Westminster, and thereby became neighbours to many of Britain's leading construction engineering consultants and contractors, who had formed a substantial coterie in Westminster for professionals and businessmen engaged in civil engineering.Immediate neighbours included Marples Ridgeway (builders of Hammersmith Flyover) and Edmund Nuttall (builders of both Mersey road tunnels).