Siemens AG, headquartered in Germany, is a global powerhouse in electrical engineering and electronics with more than DM134 billion in sales.
The manufacturer is present in several different areas, from energy to medicine, as well as in telecommunications. With more than 100 000 professionals in 160 countries, the Information and Communications (I & C) segment develops products, networks and services that provide end-to-end solutions for telecommunications network operators and enterprises. This segment includes some 20 subsidiaries and associated companies located around the world (Fig. 1), of which Siemens retains at least 50% control and more than half of them controlled at virtually 100%.