Starting as a PlayStation game developer in 2009, this Nottingham business switched to creating its own titles for mobile phones seven years ago. Since then, its core product, Avakin Life — where people can customise their avatars in a virtual world — has reached more than 2.5 million downloads a month, with the total number of users hitting 200 million in May. Led by cofounder and chief executive Halli Bjornsson, 53, the company generated sales of £22.7m this year. It opened its second overseas office in Lisbon in March, with the pandemic forcing the new team to become remote workers after being together for just three days.