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 Research Report The UK | a top destination for financial and professional services investment May 2026 - The UK continues to be Europe's most popular destination for foreign direct investment in financial and professional services The UK | a top destination for financial and professional services investment Thought Piece When regulation enables innovation May 2026 - A decade on from the FCA’s world-first Regulatory Sandbox, the impact is clear. Chris Hayward looks at the impact of the Regulatory Sandbox When regulation enables innovation Research Report The City of London Corporation’s US Office Apr 2026 - The City of London Corporation’s US Office works to strengthen engagement between the UK and the United States across financial and professional services. The City of London Corporation’s US Office Research Report Seizing the UK’s carbon credit opportunity Apr 2026 - High‑integrity carbon credit markets are critical to closing the global net zero financing gap while supporting environmental and social outcomes. Seizing the UK’s carbon credit opportunity