Top 5 most productive cities (based on output per worker, £000s)1 Slough £82.12 London 73.73 Reading 68.9Subscribe now to myGrapevine+ and get access to our comprehensive knowledge portal.Monthly£9 £27.99for the first monthT&Cs apply.orBlack FridayAnnual£150 £299for the first yearT&Cs apply.Already a subscriber?Sign inWelcome BackBusiness EmailPassword Sign inForgot your password?Not a subscriber yet?