Martin Port

Martin Harry Port (born 29 July 1962) is an English entrepreneur, based in West Yorkshire, North of England. He is the founder and former managing director of Masternaut UK Ltd - the UK expansion of French firm, Masternaut International, a telematics company specialising in fleet management and vehicle tracking services. Port was also the majority shareholder in Masternaut UK Ltd until he sold the business to Hub Telecom, a subsidiary of Europe's second largest Airport group, Aeroports De Paris (ADP) in 2009. At the time of the sale to ADP, the UK company had an enterprise value of £20m. In 2019, Masternaut was acquired by Michelin, the French tyre manufacturer.

In 2012, Port founded the Leeds-based software company BigChange to focus on developing technology solutions that improve how businesses manage and monitor their mobile workforces. In 2021, Boston-based Great Hill Partners invested £75m of growth capital in BigChange, valuing the company at £100m.