SIEMENS ?is a German multinational company. Its electronic and electrical products are global industry pioneers and are active in the fields of energy, medical, industry, infrastructure and urban business. Siemens was founded in 1847 by Werner von Siemens. It is headquartered in Munich and Berlin, Germany, and is listed on the Frankfurt Stock Exchange and the New York Stock Exchange. In addition, Siemens is also ranked 66th among the 500 largest companies in the United States in 2017 by Fortune magazine. It currently has 385,000 employees around the world and the company operates in 190 countries.