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Best AI Startups from London
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Nscale
Purpose-built data centers and sovereign AI compute infrastructure.
Infrastructure & Tooling
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
€13.4B
Lupa
AI operating system for veterinary clinics.
Agents
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
Undisclosed
Jack & Jill
Conversational AI agents for recruitment and job matching.
Agents
🇬🇧 United Kingdom
Founded
2025
Stage
Seed
Worth
Undisclosed
Trigger.dev
Infrastructure for building and running AI agents and workflows.
Developer Tools
🇬🇧 United Kingdom
Founded
2022
Stage
Series A+
Worth
Undisclosed
Tessl
AI-native, spec-driven code generation platform.
Developer Tools
🇬🇧 United Kingdom
Founded
2024
Stage
Series A+
Encord
Multimodal data labeling and evaluation platform for AI teams.
Infrastructure & Tooling
🇬🇧 United Kingdom
Founded
2020
Stage
Series A+
Worth
Undisclosed
PolyAI
Conversational voice AI agents for enterprise customer service.
Agents
NLP / Language
🇬🇧 United Kingdom
Founded
2017
Stage
Series A+
Worth
€690M
Gradient Labs
Compliance-ready AI customer-service agents for regulated industries.
Agents
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
€55M
Fractile
Memory-compute integrated chips for fast AI inference.
Infrastructure & Tooling
🇬🇧 United Kingdom
Founded
2022
Stage
Seed
Synthesia
AI avatar video generation for enterprise training and communications.
Applications
🇬🇧 United Kingdom
Founded
2017
Stage
Series A+
Worth
€3.7B
Wayve
Embodied AI foundation models for self-driving vehicles.
Computer Vision
Foundation Models
🇬🇧 United Kingdom
Founded
2017
Stage
Series A+
Worth
€7.9B
LumAI
AI-powered video creation and editing platform.
Applications
🇬🇧 United Kingdom
Stage
Series A+
Doubleword
Self-hosted AI inference and model governance for enterprises.
Infrastructure & Tooling
🇬🇧 United Kingdom
Founded
2021
Stage
Series A+
PhysicsX
Physics-aware AI for industrial engineering and simulation.
Applications
🇬🇧 United Kingdom
Founded
2019
Stage
Series A+
LabGenius
ML-driven design of therapeutic antibodies for cancer.
Applications
🇬🇧 United Kingdom
Founded
2012
Stage
Series A+
Worth
Undisclosed
Granola
AI notepad that transcribes and summarizes meetings.
Applications
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
€1.4B
Cleo
AI consumer finance assistant for budgeting and saving.
Applications
🇬🇧 United Kingdom
Founded
2016
Stage
Series A+
Worth
€460M
Causaly
AI evidence search and synthesis for biomedical research.
Applications
🇬🇧 United Kingdom
Founded
2018
Stage
Series A+
Worth
Undisclosed
Runware
Unified API and fast inference for generative media.
Infrastructure & Tooling
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
Undisclosed
Solve Intelligence
AI copilot for patent drafting and prosecution.
Applications
🇬🇧 United Kingdom
Founded
2023
Stage
Series A+
Worth
Undisclosed
AutogenAI
Generative AI for proposals, bids and RFP responses.
Applications
🇬🇧 United Kingdom
Founded
2022
Stage
Series A+
Worth
Undisclosed
Artificial Societies
AI persona simulations to test messaging and audiences.
Applications
🇬🇧 United Kingdom
Founded
2024
Stage
Seed
Worth
Undisclosed
Stability AI
Open-source generative models for image, video, audio and 3D.
Computer Vision
Foundation Models
🇬🇧 United Kingdom
Founded
2019
Stage
Series A+
Worth
€920M
Robin AI
Generative AI legal copilot for contract drafting and review.
Applications
🇬🇧 United Kingdom
Founded
2019
Stage
Series A+
Worth
Undisclosed