What they do:
Personalize your landing site for each vistor, in one line of code.
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HQ: London, United Kingdom
Top Startups in the United Kingdom
This list has 247 startups and was last updated on Oct 15, 2026. 59 of them are hiring right now. Biggest hubs: London (217), Oxford (5), and Manchester (4). Largest teams: GoCardless, LemFi, and Permutive. Latest round: Obsero raised €1M (Oct 13, 2026).
247 startupsPage 5 of 7
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 AI scientist for always-on biodefense
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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:
AI-native recruiting agency
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HQ: London, United Kingdom
What they do:
Technology to detect and track small drones
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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:
Cell-specific genetic medicines
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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:
Digital program for tinnitus
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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
What they do:
ideate.xyz is an AI-powered 3D art suite on the web
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HQ: London, United Kingdom
What they do:
Feed of insights extracted from your go-to sources using LLMs.
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HQ: London, United Kingdom
What they do:
The AI Security Engineer to Find and Fix Vulnerabilities
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HQ: London, United Kingdom
What they do:
AI generated podcasts
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HQ: London, United Kingdom
What they do:
Persistent email inbox, phone number and secret storage for agents
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HQ: London, United Kingdom
What they do:
Grammarly for Math ✏️
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HQ: London, United Kingdom
What they do:
Distributed energy infrastructure unlocking grid power to data centers
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HQ: London, United Kingdom
What they do:
Experiment tracking for training ML models
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HQ: London, United Kingdom
What they do:
AI operating system for advertising
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HQ: London, United Kingdom
What they do:
The frontier data platform for aligned health and biological AI
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HQ: London, United Kingdom
What they do:
Agent swarms that make long-running tasks exponentially faster
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HQ: London, United Kingdom
What they do:
We produce & sell stainless steel water bottles that enables people…
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HQ: London, United Kingdom
What they do:
AI agents for high-value professional work
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HQ: London, United Kingdom
What they do:
The Future of Supply Chain Data Tracking and Visibility
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HQ: London, United Kingdom
YC W19Growth stage