Britain has a large AI sector. Published figures put the UK AI market at over £21 billion in 2025, and the number of AI companies rose by 85% between 2022 and 2024 to 5,862 firms. Most are small and medium-sized, and about 75% of registered AI company offices are in London, the South East and the East of England.
The UK AI market in numbers
- Projected by one estimate to exceed £1 trillion by 2035.
- Ranked sixth in the world and second in Europe for AI-related patents in 2024.
- The sector generated an estimated £23.9 billion in revenue in 2024 and employed over 86,000 people.
- Record investment of £2.9 billion in dedicated UK AI companies in 2024, driven largely by international investors.
- Ranked third for private AI funding between 2013 and 2024, behind the United States and China.
Research labs and AI science
- DeepMind (London): known for deep reinforcement learning and protein structure prediction.
- Isomorphic Labs: listed among UK-based AI companies on Wikipedia.
- Latent Labs (London): builds generative models to make biology programmable. Tech Nation lists it as a UK AI company on track for unicorn status.
- Healx (Cambridge): uses AI for drug discovery in rare diseases.
Scale-up and enterprise AI companies
- Synthesia (London): AI video generation, with $535 million raised according to Forbes’ 2026 AI 50 list.
- Wayve: autonomous vehicles.
- Darktrace: cybersecurity.
- Tractable: insurance and damage assessment.
- Featurespace: fraud detection.
- PolyAI (London): conversational AI for customer service.
- Mind Foundry and Peak: listed among UK AI companies on Wikipedia.
Newer UK AI startups
Beauhurst’s 2026 Top 100 UK AI startups list is led by Ineffable Intelligence (North West, seed stage, £814 million raised), followed by Humanoid (London) and Latent Labs. Other names on the list include Jack & Jill, Isembard, Nevis, Paid, Maze and Mantic. Startup lists change quickly, so check the latest edition before you rely on one.
International AI companies with major UK operations
Wikipedia notes that OpenAI, Anthropic, Microsoft and Meta all run substantial AI operations in the UK. These firms are not British, but they employ many people in UK AI roles and shape the local market.
The scale-up gap
The sector is mostly small and medium-sized firms. Wikipedia describes a persistent “scale-up gap”: growing UK AI companies often struggle to find capital beyond Series A.
Frequently asked questions
What is the best-known British AI company?
DeepMind, based in London, is the most widely cited. It is best known for deep reinforcement learning and protein structure prediction. Synthesia is among the best-funded UK companies on the Forbes 2026 AI 50 list. Scale depends on the measure you use.
How big is the UK AI market?
Estimates put it at over £21 billion in 2025, and the sector employed over 86,000 people in 2024.
How many AI companies are there in the UK?
Published figures count 5,862 AI companies in 2024, up 85% from 2022.
Where are most UK AI companies based?
About 75% of registered AI company offices are in London, the South East and the East of England.
Which overseas AI companies have big UK teams?
OpenAI, Anthropic, Microsoft and Meta, according to Wikipedia.
