Siemens is one of the oldest multinational companies founded on 1^st of October 1847. It was founded by Werner von Siemens and Johan George Halske. It has its headquarters at Berlin and Munich, Germany. It is the largest multinational company in Europe. Siemens is a prominent manufacture of medical diagnostics equipment. It is one of the world’s top companies in power generation and industrial and building automation equipment manufacture. Apart from these Siemens manufactures and markets communication systems, railway vehicles, water treatment systems, home appliances, fire alarms etc.