Key facts
- Britain's AI sector has tripled in value in one year, reaching a combined £41bn for leading firms Nscale and ElevenLabs.
- Nscale, an AI infrastructure firm, is valued at £11.3bn, while voice AI company ElevenLabs is valued at £8.5bn.
- The UK is now home to 70 unicorns, collectively worth £228bn, making it the third-largest unicorn nation globally.
- AI has become the fastest-growing sector for private firm creation in the UK, surpassing fintech.
- Challenges remain for the UK in retaining its most valuable startups, with many relying on US capital for scaling.
Britain's artificial intelligence sector has experienced a dramatic surge in value, more than tripling in the past year to a combined £41bn, driven by key players like Nscale and ElevenLabs. This growth has solidified the UK's standing as Europe's premier hub for startup innovation.
New research from the Hurun UK Unicorn Index reveals that the country's nine AI unicorns now boast a collective valuation exceeding £40bn. Nscale, a London-based AI infrastructure firm focused on sovereign computing capacity, is valued at £11.3bn after raising billions in financing and recruiting high-profile board members like Sheryl Sandberg and Nick Clegg. ElevenLabs, a voice AI company, has achieved a valuation of £8.5bn, surpassing $500m in annual recurring revenue and attracting significant investment from firms including BlackRock and Nvidia.
AI has now overtaken fintech as the UK's most dynamic sector for private firm creation. Overall, the UK is home to 70 unicorns, privately held companies valued at over $1bn, with a total worth of £228bn, marking a 47% increase over the last year. This performance places Britain third globally in unicorn numbers, behind only the US and China.
However, the report highlights a persistent weakness: the UK's struggle to nurture its most valuable startups into publicly listed global technology champions. Only two UK unicorns have gone public this year, a stark contrast to the 35 in the United States. This funding gap, exacerbated by domestic pension funds' minimal allocation to venture capital, often leaves British founders dependent on American capital for scaling. Furthermore, competition for AI talent is intensifying, with high salaries offered by US tech giants making it difficult for domestic startups to retain experienced engineers. Several promising British AI firms have also been acquired before reaching the public markets, raising concerns about overseas investors capturing long-term value.
Rupert Hoogewerf, chairman and chief researcher at Hurun Report, emphasized the UK's leading position in Europe but cautioned against complacency, stating that the country must remain welcoming to international talent and supportive of its ecosystem to retain its unicorns. The report coincides with government efforts, such as the Mansion House reforms, aimed at encouraging pension funds to invest more in high-growth British companies.
The AI sector's volatility is also evident, with Stability AI dropping below the unicorn threshold and companies like GoCardless exiting the rankings due to valuation markdowns. BrewDog was sold for a fraction of its previous peak valuation. Looking forward, Hurun projects that the UK could host around 120 unicorns worth over £460bn within a decade if current supportive policies are maintained.