Dpc Holdings Plc
A maker of precision metal parts that operate in extreme heat and pressure, this company, trading as Doncasters Group, supplies superalloy turbine blades and turbocharger wheels for aircraft engines, power plants, and vehicles. It began in Sheffield, England, in 1778 as a small file-making workshop founded by Daniel Doncaster, growing into one of the world's largest makers of aerospace-grade castings. Its name traces to the Roman-era Yorkshire town of Doncaster, after the River Don and the old English word for a fort.