SIE

Siemens Aktiengesellschaft

A German technology giant that builds everything from high-speed trains and MRI scanners to factory automation software and building systems, with products used in hospitals, railways, and factories across the globe. It began in 1847 as a small Berlin workshop making an improved pointer telegraph, founded by Werner von Siemens and Johann Georg Halske, and the modern company took shape through a 1966 merger of its three predecessor firms. Fun fact: Werner von Siemens invented the dynamo, helping launch the age of electric power — and the family name lives on in everyday speech, with the unit of electrical conductance, the siemens, named in his honor.