Posted: 21 Oct 2021 Resource Type: Research Report Download Back The UK’s tech ecosystem is one of the most competitive in the world. Its growing presence is a signal of the strength of research and development in the UK, as well as the depth of investment and collaboration frameworks present. The Square Mile and the City cluster of businesses is home to much of this, creating a supportive atmosphere for tech companies to grow, with unrivalled access to the market for mentorship, investment, and business development. ‘One of the things that makes London so attractive to tech firms is its advanced and interconnected business ecosystem. The clusters of expertise in fields such as banking, consultancy, law, insurance and accounting mean that all the services a new business needs are right here on the doorstep, along with a talented workforce drawn from across the globe.’ ‘The growth of tech in the City has enhanced and strengthened the other businesses here – who benefit from both the technological innovation and the influx of innovative thinking.’ Alderman William Russell Rt Hon Lord Mayor of the City of London Catherine McGuinness Policy Chair of the City of London Corporation $585bn Value of UK tech start-up and scale-up ecosystem 350 More than 350 start-up incubators and accelerators across the country 6,600 Tech companies in the Square Mile Share: Share to LinkedIn LinkedIn Share to X Share to Facebook Facebook Share to WeChat WeChat Share to WhatsApp WhatsApp Share to Email Email Download Related content Multimedia Competitiveness benchmarking dashboard Nov 2025 - This interactive dashboard draws out seven key metrics to examine for the UK's offer in financial and professional services firms against those of other key international financial centres. Competitiveness benchmarking dashboard Research Report Exporting financial services to the world Nov 2025 - The UK is the world’s first choice supplier of financial and professional services, helping businesses around the world prosper. Find out more about the UK's innovative financial services sector, and its role as a global leader in attracting investment. Exporting financial services to the world News City of London Corporation Autumn Budget Response 2025 Nov 2025 - As the UK Government’s trusted partner across financial and public service delivery, read the City Corporation's Budget submission City of London Corporation Autumn Budget Response 2025 News Sterling 20 Oct 2025 - 20 of Britain’s largest pension providers and insurers have launched Sterling 20, a new partnership to invest billions into UK infrastructure, innovation and renewable energy. Sterling 20