Siemens AG is a German industrial company with headquarters in Munich and Berlin. Werner von Siemens and Johann Georg Halske founded it in 1847 to build telegraph equipment. The group has a very large research and development budget and many patents. It employs engineers and technicians in most countries and reports results in euros for a fiscal year ending in September.
The company supplies automation systems, industrial software, electrical equipment and rail technology. Its units include Digital Industries, Smart Infrastructure and Mobility. It also owns a majority stake in the medical technology firm Siemens Healthineers.
Siemens makes control systems used in factories and buildings and trains such as the ICE and Velaro. It has spun off or sold parts of its older business, including Siemens Energy in 2020. The shares trade on the Frankfurt exchange. The company's software business includes product lifecycle tools and factory simulation. Siemens Mobility builds trains and signaling. Competitors include ABB, Schneider Electric and Honeywell.