Cyber security provider Darktrace and legal online marketplace Lexoo have been ranked at number 12 and 25 respectively in Deloitte's UK Fast 50, which is a list of the 50 fastest-growing technology companies in the UK based on revenue growth over the last four years. Lexoo is the only company listed within the ‘legal technology' bracket.

Darktrace, which counts among its law firm clients Irwin Mitchell, Sackers, ONC Lawyers, Australia's Jackson McDonald and Singapore's Shook Lin & Bok, has seen growth of 2,446%. It made its debut in the top 50 in 2017 as a rising star. It has now ranked highly for two consecutive years. In September 2018 Darktrace raised $50 million in Series E funding at a valuation of $1.65 billion. The company counts among its early investors Invoke Capital, which is Mike Lynch's investment vehicle. Dr Lynch helped to set up Darktrace and was a board director until he was charged in the US with conspiracy and fraud over his sale of Autonomy to HP (charges that he contests).

Meanwhile Lexoo, which last year secured $4.4m in Series A funding, has seen growth of 1,174%. The company gives access to pre-vetted lawyers across the globe and since its launch in 2014, over 3000 multinational companies, large corporates and high-growth startups have engaged Lexoo lawyers including UBS Asset Management, Travelodge, eBay, Ascential PLC, VICE Media, Ocado, Monzo, Babylon Health, Secret Escapes, World Remite and ASOS.

Previous legal technology companies in the list include Peppermint Technology and HighQ.

You can see the full list of 2019 winner and their profiles here: http://www.deloitte.co.uk/fast50/winners/2019/index.html