 Their six children, Dagny, Inger, Magnulf, Kolbein, Idar, and Ragnhild (especially Kolbein and Idar) were responsible for the growth of the company to an employer of around 2,800 people in 1992.Vickers acquired "Ulstein Group AS" except the shipbuilding division in 1999, then Rolls-Royce acquired Vickers a few months later.The current CEO of Ulstein Group is Gunvor Ulstein, granddaughter of the late founder Martin Ulstein.