Masternaut Limited is a telematics company specialising in fleet and asset management. They achieved initial recognition with Martin Port as CEO and subsequently with Martin Hiscox as Chairman were featured as a 2015 UK Government Future 50 Tech Company and in the Sunday Times Tech Track 100, a list of the fastest growing UK technology firms, in 2007, 2008, 2009, 2010 and 2014. In April 2011 Masternaut merged with former AIM-listed competitor Cybit, and is operating under the Masternaut name. The company is owned by Summit Partners and Fleetcor, following its acquisition from Francisco Partners in 2014. and are now owned by Michelin. Masternaut has around 400 employees, based in the UK and France.