If you are visiting Pittsburg on business you are in good company, giants including Google, Apple Inc, Bosch, Facebook, Uber, Nokia, IBM and Microsoft are among the approximately 1,600 tech firms generating over $20 Billion in annual Pittsburg payrolls.  Eight Fortune 500 companies and six of the top U.S law firms have their headquarters here.  The largest employer in the city is the University of Pittsburg Medical Centre, employing in the region of 48,000 people.