Business case: ARM Holdings

Sector: Microchip designTrack record: Established in 1990 by a team of 12 engineers. Now employs over 1,900 people across 15 countries Over 95 per cent of the world’s mobile phones use chips designed by ARM The next version of Microsoft’s Windows operating system will use its technology 73 per cent increase in pre-tax profits to £167.4m for the year to end December 2010