This London-based video games developer was co-founded in 2010 by chief executive Henrique Olifiers, Imre Jele and Roberta Lucca. The company has sold more than 3m copies of its cult hit Surgeon Simulator, where gamers pick up a virtual scalpel and perform simulated operations such as open-heart surgery. Other Bossa hits include the BAFTA-winning Monstermind, I Am Fish and I Am Bread, and the studio has become a key player in the virtual reality games market. Investors include Atomico and London Venture Partners.