BrewDog was founded - by two men and a dog - in Scotland in 2007.
They now have 1,000 employees, are the UK's fastest growing non-industrial beer company by some distance, and have made a loud noise through their crowdfunding of business expansion, their iconoclastic attitude/talent for generating headlines, very distinctive design - and of course extremely good beers.
As well as the UK, they have a brewery in Columbus, Ohio, and have recently announced plans to open another in Brisbane, Australia, and in China.