Potsdam is hosting 64 of the largest companies in Germany (Deutschland). Within the ranking of Europe's largest cities ordered by their number of companies Potsdam is on position 316.(Six months ago it was position 259 ) If we rank all cities by the total sales of all their big companies, Potsdam is on position 718. According to the NACE-activities of the biggest companies, Potsdam is the city of 64: Post and telecommunications