69 Best Startups in London to Watch in 2025

The Definitive Seedtable Ranking of 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 2,105 start-ups with an aggregate funding of $18.1b. The average funding per company in this subset is $262.4m.

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

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1

Funding Rounds

CEX.IO is a cryptocurrency exchange platform that supports a range of cryptocurrencies and has different deposit and withdrawal methods that its traders can utilize for buying or selling digital assets through the usage of FIAT currency.

3

Funding Rounds

$40.8m

Money raised

Euler is a decentralized finance company founded in 2020 by Michael Bentley, Doug Hoyte, and Jack Prior.

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.

15

Funding Rounds

$43.0m

Money raised

What3words is a London-based company developing a global address system. The company was founded by Jack Waley-Cohen, Chris Sheldrick, Mohan Ganesalingam, and Michael Dent.

4

Funding Rounds

$107.0m

Money raised

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

1

Funding Rounds

$500.0k

Money raised

BrainStation offers full-time and part-time courses in data science, design, development, marketing, cyber security and product in New York City, Miami, London, Toronto, Vancouver, and through an Online Live platform.

7

Funding Rounds

$124.0m

Money raised

Company providing user behavioral analytics for revenue optimization for websites and smartphone applications

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.

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.

9

Funding Rounds

$1.5b

Money raised

Faire is a curated boutique wholesale marketplace connecting local retailers with thousands of emerging and established brands.

1

Funding Rounds

$3.5m

Money raised

Backd is a liquidity made reactive founded in 2020 by Xan Myburgh.

10

Funding Rounds

$1.6b

Money raised

Snyk is a technology company offering a software development security platform using open-source code.

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.

2

Funding Rounds

$12.1m

Money raised

Sky and Space Global is an Australian nanosatellite company focused on IoT networks.

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.

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.

5

Funding Rounds

$37.7m

Money raised

42Crunch is an enterprise API security platform with integrated services, including an API firewall, to discover and remediate API security vulnerabilities.

1

Funding Rounds

$4.0m

Money raised

Tempus is a future yield tokenization and fixed rate protocol founded in 2021 by David Garai.

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.

2

Funding Rounds

$13.9m

Money raised

Tacit Knowledge is a London-headquartered software and IT consulting company developing enterprise software solutions for digital commerce companies.

6

Funding Rounds

$898.4m

Money raised

Wise, previously TransferWise, is a company that offers money transfers services founded by Kristo Käärmann and Taavet Hinrikus.

6

Funding Rounds

$144.4m

Money raised

Ayla Networks is a technology company developing a platform as a service (PaaS) for managing internet of things (IoT) devices.

4

Funding Rounds

$867.5k

Money raised

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

BTC-Alpha is a cryptocurrency exchange platform.

5

Funding Rounds

$60.2m

Money raised

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

7

Funding Rounds

$638.8m

Money raised

TradingView is a platform which provides instruments for publication and the viewing of trading ideas.

1

Funding Rounds

$8.0m

Money raised

Regulated crypto exchange. Built the world's first regulated tokenised assets platform. It aims to revolutionise cryptocurrency investment.

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.

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.

3

Funding Rounds

$34.1m

Money raised

Logically is a UK-based technology company that uses AI to identify harmful misinformation and deliberate disinformation online.

Industries:

Location:

1

Funding Rounds

$50.0m

Money raised

Parallel Systems reveals it is decarbonizing freight by building a cleaner, automated rail future

9

Funding Rounds

$374.3m

Money raised

Lattice is a people workforce management platform for goal management, weekly check-ins, and performance reviews.

7

Funding Rounds

$218.1m

Money raised

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

5

Funding Rounds

$21.0m

Money raised

Memgraph is an in-memory Cypher-compatible graph database.

3

Funding Rounds

$24.7m

Money raised

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

3

Funding Rounds

$2.9m

Money raised

Chronomics is an AI-driven platform company that tracks epigenetics for personalized healthcare based in the United Kingdom.

4

Funding Rounds

$42.5m

Money raised

Vungle (Vungle, Inc.) is startup which powers video advertisements inside of mobile apps and games.

4

Funding Rounds

$217.0m

Money raised

Aztec is an open source layer 2 network.

Location:

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.

10

Funding Rounds

$1.1b

Money raised

Starling is an UK-based mobile-first digital banking startup.

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

3

Funding Rounds

$2.8m

Money raised

First Orion is a Little Rock, Arkansas-based software company offering identity verification for telecommunication companies and protection from scam calls.

8

Funding Rounds

$488.0m

Money raised

Outreach is a sales engagement platform that uses artificial intelligence (AI) for predictive analytics as it relates to sales.

3

Funding Rounds

Carbon Analytics provides a SaaS platform solution designed to assess carbon emissions in companies' supply chains and generate actionable data that can be used to reduce emissions.

8

Funding Rounds

$28.3m

Money raised

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

12

Funding Rounds

$914.3m

Money raised

GoCardless is a payments company that developed global payments network based on the bank to bank payment systems. It participated in the S11 cohort of Y Combinator

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.

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.

1

Funding Rounds

Doxim is a Markham, Ontario-based customer communications and engagement technology software development company focused on providing omnichannel communications and payment solutions for the financial services industry.

8

Funding Rounds

$729.5m

Money raised

Sysdig is a unified approach to container security, microservices monitoring, and forensics, with Kubernetes, Prometheus, and Falco support.

1

Funding Rounds

$30.6m

Money raised

Badoo is a dating-focused social networking service.

4

Funding Rounds

$118.2m

Money raised

Railsr, formerly Railsbank, is a London-based open-API banking and compliance platform that gives regulated and un-regulated companies access to global bankings.

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.

3

Funding Rounds

$168.5m

Money raised

D2L is a provider of elearning solutions founded by John Baker that uses the Brightspace learning management platform.

8

Funding Rounds

$543.7m

Money raised

Paddle is a London-based developer of a software-as-a-service commerce platform offering payments infrastructure for software companies.

1

Funding Rounds

$2.5m

Money raised

Toast Ale is a London-based brewery using surplus fresh bread to brew beer and dedicating their profits to charities working to create greater efficiency in the food supply system.

3

Funding Rounds

$30.5m

Money raised

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

2

Funding Rounds

$19.0m

Money raised

Fnatic is a professional eSports organization with headquarters in London.

6

Funding Rounds

$119.0m

Money raised

Zoe is a Boston and London-based company which builds software for tracking individuals' nutrition response patterns, as well as a mobile application for tracking COVID-19 symptoms.

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