What they do:
We help high-growth startups go viral on autopilot
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HQ: London, United Kingdom
Top B2B Software Startups in London
This list has 145 startups and was last updated on Oct 15, 2026. 41 of them are hiring right now. Largest teams: Permutive, Model ML, and Prolific. Latest round: Sava raised €32.1M (Oct 9, 2026).
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What they do:
Generate, iterate, and ship AI ad creatives faster
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HQ: London, United Kingdom
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AI Employees who love overtime
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HQ: London, United Kingdom
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Humanoid robots that do your chores for the price of an iPhone!
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HQ: London, United Kingdom
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The mid-market agent platform
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HQ: London, United Kingdom
Zymbly
Hiring
What they do:
The decision-support layer for aviation ops teams to know what to do…
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HQ: London, United Kingdom
YC W26Early stage
What they do:
AI Scheduling for Short Haul Trucks
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HQ: London, United Kingdom
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Turns spreadsheets into internal apps and customer portals
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HQ: London, United Kingdom
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Transforming pharmacies in the UK into diagnostic centers
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HQ: London, United Kingdom
What they do:
Get data insights without writing SQL
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HQ: London, United Kingdom
What they do:
Financial intelligence for every investor
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HQ: London, United Kingdom
What they do:
Unlock wasted GPU capacity.
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HQ: London, United Kingdom
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Office management software for hybrid workspaces
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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
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Models that keep learning
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HQ: London, United Kingdom
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The AI data analyst for consumer brands
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HQ: London, United Kingdom
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AI-powered workflow automation for US healthcare providers.
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HQ: London, United Kingdom
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AI agent that optimizes inference for embedded compute like Jetson
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HQ: London, United Kingdom
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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
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AI-native recruiting agency
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HQ: London, United Kingdom
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Monitor and fix product privacy issues before they block growth
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HQ: London, United Kingdom
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Forward-deployed AI Agents
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HQ: London, United Kingdom
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Swarms of agents acting like users to find bugs before release
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HQ: London, United Kingdom
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Open-source monitoring for machine learning models
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HQ: London, United Kingdom
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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
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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
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The AI Security Engineer to Find and Fix Vulnerabilities
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HQ: London, United Kingdom
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Persistent email inbox, phone number and secret storage for agents
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HQ: London, United Kingdom
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Grammarly for Math ✏️
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HQ: London, United Kingdom
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Experiment tracking for training ML models
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HQ: London, United Kingdom
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AI operating system for advertising
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HQ: London, United Kingdom
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The frontier data platform for aligned health and biological AI
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HQ: London, United Kingdom