Topsil, founded 1959, is a world leading supplier of ultrapure silicon for the global semiconductor industry. Topsil provides tailor-made silicon ingots and wafers, enabling customers to manufacture advanced and energy efficient power components. The components are used e.g. for energy transmission in wind turbines and the power grid, as frequency converters in motors and for electricity generation in high speed trains, in photodetectors for medical imaging and within quantum computing. Customers include large semiconductor companies as well as research institutions worldwide. End products are applied in the transport, energy, detector, medico and numerous other industrial sectors.