In February 2006, Cambridge Judge Business School reported estimates that there were approximately 250 active start-ups directly linked to the university, valued at roughly US$6 billion.
[citation needed] Several of these companies have grown into multinationals, including Arm, Autonomy Corporation, AVEVA, and Cambridge Silicon Radio.
In 2012, it was reported that strong employment growth in the Silicon Fen hub was hampered due to its significant concentration on research and development, which was limiting competition in manufacturing and costs.
Other possible factors include a high standard of living available in the county, and good transport links, for example to London and with Cambridge Airport having a full service business jet centre.
become a high-technology centre, which has meant that commercial rents were generally lower than in other parts of the UK and thus giving companies a head-start on those situated in other more expensive regions.