What they do:
Unlocking the world’s most valuable data for frontier AI.
Quick facts:
HQ: London, United Kingdom
Top AI & Data Startups in the United Kingdom
This list has 103 startups and was last updated on Oct 15, 2026. 27 of them are hiring right now. Biggest hubs: London (94), Manchester (3), and Cambridge (2). Largest teams: Model ML, Prolific, and Encord. Latest round: Obsero raised €1M (Oct 13, 2026).
103 startupsPage 2 of 3
Smooth
Hiring
What they do:
Fast, simple, reliable AI browser agent
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HQ: London, United Kingdom
Plexe
Hiring
What they do:
Open-source agents to build predictive ML models from a prompt
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HQ: London, United Kingdom
What they do:
The AI Associate for Litigation Lawyers
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HQ: London, United Kingdom
PRINCEPS
Hiring
What they do:
AI-native insurance company for the compute economy
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HQ: London, United Kingdom
What they do:
Accounting software that works for you
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HQ: London, United Kingdom
What they do:
Search engine for trustworthy medical information.
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HQ: London, United Kingdom
What they do:
Voice AI for Automotive
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HQ: London, United Kingdom
What they do:
AI Agents for Advisory & Financial Services.
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HQ: London, United Kingdom
What they do:
Understand why your AI agent breaks. Iterate fast to fix it.
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HQ: London, United Kingdom
What they do:
The fastest & most scalable graph-vector database on the market
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HQ: London, United Kingdom
QuestDB
Hiring
What they do:
Data platform for mission-critical real-time workloads
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HQ: London, United Kingdom
YC S20Early stage
What they do:
Generate, iterate, and ship AI ad creatives faster
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HQ: London, United Kingdom
What they do:
Deliver genes to any cell with AI
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HQ: London, United Kingdom
What they do:
AI Employees who love overtime
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HQ: London, United Kingdom
What they do:
Humanoid robots that do your chores for the price of an iPhone!
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HQ: London, United Kingdom
What they do:
Programmable DNA drug destroying all cancers, unlocking 80% of targets
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HQ: Oxford, United Kingdom
What they do:
Get data insights without writing SQL
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HQ: London, United Kingdom
What they do:
Unlock wasted GPU capacity.
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HQ: London, United Kingdom
What they do:
Personalize your landing site for each vistor, in one line of code.
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HQ: London, United Kingdom
What they do:
Models that keep learning
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HQ: London, United Kingdom
What they do:
The AI data analyst for consumer brands
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HQ: London, United Kingdom
What they do:
AI-powered workflow automation for US healthcare providers.
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HQ: London, United Kingdom
What they do:
Making Next-Generation Antibiotics that Outpace Bacterial Evolution
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HQ: Oxford, United Kingdom
What they do:
AI agent that optimizes inference for embedded compute like Jetson
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HQ: London, United Kingdom
What they do:
The fastest way to launch product catalogs.
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HQ: London, United Kingdom
What they do:
Context-aware orchestration between humans and AI.
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HQ: London, United Kingdom
What they do:
Frontier grows scalable biological brains as an ML training substrate
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HQ: London, United Kingdom
What they do:
Monitor and fix product privacy issues before they block growth
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HQ: London, United Kingdom
What they do:
Forward-deployed AI Agents
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HQ: London, United Kingdom
What they do:
Swarms of agents acting like users to find bugs before release
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HQ: London, United Kingdom
What they do:
The unbiased AI and data layer for skin health.
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HQ: London, United Kingdom
What they do:
Open-source monitoring for machine learning models
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HQ: London, United Kingdom
What they do:
AI SRE For Teams on Kubernetes
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HQ: London, United Kingdom
What they do:
Recover payment failures and maximize subscription Revenue
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HQ: London, United Kingdom
What they do:
No Code Data Analysis for Life Science Research
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HQ: London, United Kingdom