Martin joined the Cambridge office of 3i in 1986 as a specialist investor in start-up and early stage technology businesses. In 1992 he founded ETCapital Limited which has managed a number of equity funds which have invested in more than 40 technology businesses principally around Cambridge. Martin has also been active on the investment committees of a number of early stage equity funds. Martin is currently CEO of Psonar, the digital music service. He read history for his first degree at New College, Oxford, was a regular army officer for seven years before completing an MBA at Cranfield University and has a degree in IT & computing from the Open University.