Complex sentence: Stuttgart is also a transport junction, and possesses the sixth-largest airport in Germany, where companies such as Porsche,, Bosch, Mercedes-Benz, Daimler AG, Dinkelacker, and others are headquartered there.
Split into simpler sentences: Stuttgart is also a transport junction, and possesses the sixth-largest airport in Germany. Such companies as Porsche,, Bosch, Mercedes-Benz, Daimler AG, Dinkelacker, and others are headquartered there.