IBM, headquartered in Armonk, New York, is one of the largest tech firms in the world, servicing markets in 170 countries. The company sells hardware, middleware, and software and provides consulting services across areas including mainframe computers and nanotechnology. In 2014, IBM sold its chip making facilities to GlobalFoundries, but continue to design chips without fabs, focussing on research, software, and systems development. In 2021, IBM announced a breakthrough in semiconductor design with a 2nm nanosheet technology.