Grind

At the Royal Exchange in the heart of the City, this Grind is an early riser, pouring coffee from 7am on weekdays before clocking off for the weekend. It belongs to a London-born coffee company built on ethically sourced, expertly roasted beans, with outdoor seating, takeaway and dine-in all on offer. A sturdy 4.5 stars from more than 320 reviews makes it a dependable Square Mile stop.