The 50 fastest-growing tech companies in the UK

Deloitte has named fitness technology company Magic AI the fastest-growing tech company in the United Kingdom.

Magic AI topped the list of companies named in the 2026 Deloitte UK Technology Fast 50 awards, recording total revenue growth of 19,774% over three years.

The London-based company has developed an AI-powered smart fitness mirror that delivers personalised coaching, interactive home workouts, and virtual personal training using computer vision technology and LLM integration.

“Being ranked No.1 in Deloitte’s UK Technology Fast 50 is an incredible honour and a testament to the team behind Magic AI,” said Magic AI CEO Varun Bhanot.

“I started this company after experiencing how life-changing personal training could be, but also how inaccessible it was for so many people.”

“Today, we’ve helped transform the lives of over 30,000 people across 43 countries, with more than 500,000 AI-coached workouts completed. And we’re only just getting started,” he said.

In second place was Dexory Limited, which is a robotics and AI warehouse intelligence company based in the South East of England. Dexory posted a three-year revenue growth rate of 17,687% and was also awarded Deloitte’s Women in Leadership award.

Deloitte’s Fast 50 awards rank the 50 fastest-growing technology companies in the UK according to their average revenue growth over a three-year period.

Collectively, the 2026 Fast 50 winners posted an average three-year revenue growth rate of 2,824% and generated total revenues of £727 million in the last financial year.

Two thirds of the fastest-growing companies over the past three years were headquartered in London, with other hotspots for tech growth including Cambridgeshire and East, and the South East of England.

“London’s continued strength in the Fast 50 underlines its position as a leading hub for ambitious technology businesses, with access to talent, investment and networks helping companies to scale at pace,” said Deloitte UK Technology Fast 50 lead partner Kiren Asad.

“But high-growth businesses can and do emerge across the UK. Creating the right conditions for more of these companies to start, scale and succeed in every region will be important to strengthening the UK’s technology ecosystem as a whole.”

Deloitte UK Technology Fast 50 Rankings

Below are the 50 fastest-growing technology companies in the UK, according to the Deloitte UK Technology Fast 50 rankings.

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