SIE

Siemens AG

A German technology and industrial giant that builds everything from trains and factory automation systems to medical imaging machines and smart-grid equipment. Founded in 1847 by inventor Werner von Siemens, the company got its start building telegraphs and laid the first transatlantic telegraph cable. Its name comes from its founder, and it remains one of the world's largest industrial manufacturers, with products used in hospitals, power plants, railways, and factories across the globe.