69 Best Ai Startups in London to Watch in 2025

The Definitive Seedtable Ranking of Ai Startups in London

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 438 start-ups with an aggregate funding of $14.5b. The average funding per company in this subset is $210.7m.

Last update to the database: Feb 18, 2025. See changelog.

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15

Funding Rounds

$140.4m

Money raised

Synthace is a software company based out of London, UK, building automation software that gives biologists the ability to control and analyze the performance of lab hardware.

4

Funding Rounds

$107.0m

Money raised

ComplyAdvantage is a company developing machine learning and big data based financial crime fighting software.

6

Funding Rounds

$214.0m

Money raised

ScienceLogic is an IT Operations Management company providing IT infrastructure monitoring and AIOps solutions for hybrid cloud management.

Location:

Key people:

8

Funding Rounds

$274.7m

Money raised

Sisense is a software company offering a platform for data analysts and data engineers to transform data into actionable business insights.

7

Funding Rounds

$11.1m

Money raised

Sky Engine AI is an advanced data science technology and research company that develops evolutionary AI platform for deep learning in virtual reality for any computer vision applications.

6

Funding Rounds

$157.0m

Money raised

Data.ai, formerly known as App Annie, is a unified data and artificial intelligence (AI) company that combines consumer and market data to provide AI-powered insights into mobile app market data.

4

Funding Rounds

$5.3m

Money raised

Humanloop is a platform for annotating, training, and deploying natural language processing (NLP) models.

7

Funding Rounds

$875.5m

Money raised

C3 AI is an enterprise artificial intelligence software company providing a family of integrated products for accelerating digital transformation.

Key people:

4

Funding Rounds

$165.0m

Money raised

Elastic is a software company that creates products for searching for information on the Internet. It was founded in 2012 and is headquartered in San Francisco and Amsterdam.

8

Funding Rounds

$99.0m

Money raised

Hadean is a venture-backed computing technology company that aims to make the nature of computing more accessible.

2

Funding Rounds

$1.5b

Money raised

Inflection is an AI studio developing personal artificial intelligence (AI) with its first product, Pi (personal intelligence), a supportive and empathetic conversational AI.

4

Funding Rounds

$1.5m

Money raised

Aura Vision is an AI computer vision company for generating insights into shop floors. Aura Vision uses existing security cameras in stores to provide customer demographics and behavior data.

6

Funding Rounds

$100.9m

Money raised

AppZen is a San Jose, California-based company that provides an AI-based auditing platform for finance teams.

4

Funding Rounds

$867.5k

Money raised

Intelistyle is a London-based artificial intelligence company founded by Michael Michelis and Kostas Koukoravas.

Location:

Key people:

5

Funding Rounds

$60.2m

Money raised

U.S-based 3D media technology company providing worldwide end-to-end virtual media solutions.

4

Funding Rounds

$68.4m

Money raised

PolyAI is a company building an enterprise conversational platform with AI-generated voice assistants to improve customer experience.

Location:

Key people:

4

Funding Rounds

$51.0m

Money raised

Adarga is a UK-based artificial intelligence software provider working with customers across defense, national security, and commercial organizations.

12

Funding Rounds

$1.7b

Money raised

Revolut is a London-based Fintech startup and bank offering mobile banking, card payments, money remittance, and foreign exchange services.

18

Funding Rounds

$438.7m

Money raised

Cognigy is a developer of conversational AI services and products for enterprise customer contact centers.

Location:

Key people:

7

Funding Rounds

$218.1m

Money raised

SendBird is a developer of a messaging API for mobile applications and websites.

3

Funding Rounds

$24.7m

Money raised

Unitary AI is a UK AI startup providing a contextual platform for understanding and moderating video content.

Key people:

2

Funding Rounds

$21.0m

Money raised

ElevenLabs is a voice artificial intelligence (AI) research and development company developing text-to-speech and voice cloning software.

Location:

Key people:

7

Funding Rounds

$240.0m

Money raised

Intercom is a technology company developing and providing a communications platform for web and mobile businesses to interact with customers.

Key people:

5

Funding Rounds

$212.8m

Money raised

Pindrop is a cybersecurity company developing voice security and authentication solutions.

5

Funding Rounds

$28.9m

Money raised

Antidote.me closes the gap between clinical trials and patients

8

Funding Rounds

$28.3m

Money raised

Hazy is a machine learning company creating statistically controlled synthetic data for fraud detection and risk modeling.

9

Funding Rounds

$359.9m

Money raised

Payhawk is a provider of a financial system that combines credit cards, payments, and expenses into one experience.

Industries:

Location:

Key people:

1

Funding Rounds

$100.0m

Money raised

Voyager Labs is an artificial intelligence-based analytics and investigation solution provider, offering insights about individuals, groups, and topics.

Key people:

7

Funding Rounds

$184.7m

Money raised

Tessian (formerly Checkrecipient) is an artificial intelligence email security platform.

8

Funding Rounds

$644.9m

Money raised

Highspot provides a sales enablement platform that increases the success of sales teams across many industries.

Industries:

Location:

Key people:

3

Funding Rounds

$30.5m

Money raised

Yewno is a company that has built AI technology for research and idea generation.

8

Funding Rounds

$354.4m

Money raised

Starship Technologies is an Estonian company developing small self-driving robotic delivery vehicles. The company is headquartered in San Francisco, California, with engineering operations in Tallinn, Estonia, and a satellite team in Helsinki, Finland. Starship also has offices in London, UK, Germany, Washington, DC and Mountain View, California.

3

Funding Rounds

$12.1m

Money raised

Artificial Intelligence company and FCA authorized mortgage lender in the UK helping renters purchase their first homes.

7

Funding Rounds

$121.8m

Money raised

Artificial intelligence to help perform visual tasks with more speed, accuracy, and scale

7

Funding Rounds

$65.0m

Money raised

EDITED is a London-headquartered retail intelligence and real-time analytics platform.

Location:

Key people:

6

Funding Rounds

$39.6m

Money raised

Multiverse Computing is a Spanish startup developing quantum and AI business solutions.

Location:

Key people:

4

Funding Rounds

$140.0m

Money raised

iProov is a user authentication technology company based in London.

Location:

Key people:

8

Funding Rounds

$101.4m

Money raised

Synthetic biology company that uses AI, DNA synthesis, and robotics to discover biological molecules.

Location:

Key people:

3

Funding Rounds

$107.0m

Money raised

Drift is a software company offering a conversational marketing platform founded in 2015 by David Cancel.

7

Funding Rounds

$39.7m

Money raised

EmitWise helps large businesses monitor and reduce their carbon footprints.

3

Funding Rounds

$2.9m

Money raised

Artificial Intelligence company using Augmented Reality for collaborative professional services

Key people:

1

Funding Rounds

$1.6m

Money raised

Rahko is a company that is developing a quantum discovery platform for the chemical simulations.

4

Funding Rounds

$18.7m

Money raised

Artificial Labs is the developer of a digital platform leveraging machine learning and APIs for insurers.

8

Funding Rounds

$62.1m

Money raised

Juro is a legal technology company specializing in the creation and maintenance of paperwork used in companies. It is London-based and was founded in 2016.

3

Funding Rounds

Clinithink is a Natural Language Processing AI for structuring medical chart notations

6

Funding Rounds

$238.9m

Money raised

HyperScience is a AI enabled company for office work company founded in 2014 by Peter Brodsky, Krasimir Marinov and Vladimir Tzankov.

2

Funding Rounds

$3.9m

Money raised

StatusToday is an artificial Intelligence company for Employee Behavioral Analytics founded in 2015 by Ankur Modi.

10

Funding Rounds

$187.8m

Money raised

Causaly is a biomedical research discovery tool founded in 2018 by Yiannis Kiachopoulos.

Location:

Key people:

1

Funding Rounds

$5.0m

Money raised

User authentication and fraud prevention with biometric Identity-as-a-Service. AimBrain provides face, voice, lipsync, behavior and anomaly detection modules.

8

Funding Rounds

$7.3m

Money raised

BioBeats is an artificial Intelligence company founded by David Plans, Nadeem Kassam and Davide Morelli.

Location:

Key people:

8

Funding Rounds

$54.9m

Money raised

A software company that specializes in technology for manufacturing. It is located in London, England and was founded in 2016.

3

Funding Rounds

$34.0m

Money raised

A platform that combines machine learning with a deep understanding of a company and their customers, integrating with any system used to collect feedback. Its headquarters are located in London, England and it was founded in 2015.

9

Funding Rounds

$582.7m

Money raised

Synthesia is an AI-powered video platform founded in 2017 by Victor Riparbelli, Lourdes Agapito, Matthias Niessner and Steffen Tjerrild.

Key people:

5

Funding Rounds

$82.8m

Money raised

Peptome is a London-based protein physics intelligence company founded in 2016 by Kamil Tamiola and Matt Heberling. It utilizes artificial intelligence for computers to process all information about protein data in the same efficient way that scientists do.

Location:

Key people:

6

Funding Rounds

$24.8m

Money raised

An insurance technology company offering a platform for cleaning relevant data for the insurance industry.

Key people:

1

Funding Rounds

$9.0m

Money raised

Curio Labs is a developer of an application allowing users to listen to stories from top journalistic outlets.

3

Funding Rounds

$475.0m

Money raised

Receivables and Treasury cloud software, powered by AI to optimize working capital.

Key people:

2

Funding Rounds

$5.2m

Money raised

Marqo is an open-source, multimodal vector search engine that allows users to store and query unstructured data (text, images, code, etc.) with a single API.

4

Funding Rounds

$149.0m

Money raised

An artificial intelligence company that is developing the technology to automate computer numerical control milling machines. It is located in London, England and was founded in 2015.

3

Funding Rounds

$6.6m

Money raised

Treefera is a UK company developing an AI-powered data platform to map trees globally for carbon offsetting and conservation.

Location:

Key people:

10

Funding Rounds

$2.5b

Money raised

Celonis is company designing an intelligent big data technology analyzing and visualizing company processes.

Industries:

Location:

1

Funding Rounds

$1.0m

Money raised

An artificial intelligence company that has created software to combat astroturfing, harmful social media manipulation campaigns. It was founded in 2018 and has offices in London, England and San Francisco, California.

1

Funding Rounds

Audio technology company using artificial vocal recognition for music creation

6

Funding Rounds

$59.9m

Money raised

Yonder is a U.S-based company providing social media threat mitigation software.

5

Funding Rounds

$97.3m

Money raised

Machine Learning company building predictive technology for complex and dynamic systems

Key people:

4

Funding Rounds

$53.2m

Money raised

An artificial Intelligence company with software that can translate voice tracks on videos. It is located in London, England and was founded in 2017.

9

Funding Rounds

$777.1m

Money raised

Insider is an AI-driven omnichannel and customer engagement platform founded in 2012 by Hande Cilingir.

Location:

Key people:

3

Funding Rounds

$27.8m

Money raised

Hotelmize is a platform designed to improve the pricing and booking process of hotel rooms using big data analysis.

1

Funding Rounds

$3.0m

Money raised

FashionTech company using Artificial Intelligence for wardrobe management

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