Cambridge has the highest concentration of tech jobs in the UK with 15 out of every 1,000 residents employed in the sector, but the M4 corridor and the Oxford area are not far behind.
Tech jobs are clustered around top technical universities, so the activity around Oxford and Cambridge is no surprise. The Thames Valley/M4 corridor has long been a home for big tech companies with the convenient links to London and Heathrow.
The Cambridge area specialises in AI, and home-grown tech companies include ARM and Autonomy, now both acquired by foreign firms. Locally headquartered Cambridge firms include Darktrace, Frontier Developments and Featurespace.
Oxford, meanwhile, seems to attract cyber security, health technology and gaming firms and is home to Sophos and Oxford Instruments, among others.
The Reading area is home to giant multinationals such as Microsoft, Symantec and Wipro, and there is a tendency for security and analytics firms to have bases in the area. Reading University is also known for its technology courses.
But it's not all London and the south east of England. London is an important tech hub, but barely features on a per-population basis in comparison with the smaller cities around it.
Manchester and Southampton both have 10 tech jobs per 1,000 head of population. Manchester plays host to Google and has a strong app development and digital marketing culture, while Southampton specialises in e-commerce, hardware and data analytics, according to the BBC.
Scotland and Wales have less of a tech focus with four jobs per 1,000 residents in Glasgow and Edinburgh and three in Cardiff and Swansea. Financial and health technology seems to be a specialism in Scotland and Wales, while Belfast, with two tech jobs per 1,000, is a business software hub.
Overall there are 1.56 million tech jobs in the UK, and the sector is growing faster than the wider economy, according to the Tech City report.
Analytics jobs such as data scientist continue to command the highest salaries.
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