Cyber firm Darktrace confirms plans for London float in early May Darktrace was founded in 2013 and is led by Poppy Gustafsson. (Photo by John Phillips/Getty Images for TechCrunch) UK cybersecurity company Darktrace today confirmed it will float on the London Stock Exchange in the coming weeks as it looks to build on a successful pandemic year. The firm’s offer price will be determined following a book-building process, with the listing expected to take place early next month. The company is understood to be seeking a valuation of up to £3bn. Darktrace will aim to raise proceeds to speed up new product development as well as expansion overseas.