69 Best Startups in London to Watch in 2025

Dialpad is a San Francisco-headquartered business communications platform company.

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

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.

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

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.

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

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

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

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

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

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

Hitachi Consulting offers its clients management consulting, technology solutions, and business innovations services.

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.

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.

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

Panavision is an american motion picture equipment company founded in 1954 by Robert Gottschalk.

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

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

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.

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

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

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.

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

Auth0 is an authentication and authorization service for application developers.

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

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

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

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

Looker is a business intelligence software company providing data access tools to organizations and data analysts.

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

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

BTC-Alpha is a cryptocurrency exchange platform.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

OneWeb is a telecommunications company.

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

Luno is a cryptocurrency company founded in 2013 by Marcus Swanepoel.

Aztec is an open source layer 2 network.

Onfido is an identity verification service for enterprises.

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

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

Shazam is an application developed by Shazam Entertainment Ltd. The application can identify music, movies, advertising, and television shows, based on a short sample played and using the microphone on the device. On 24 September 2018, Shazam Entertainment Ltd. was bought by Apple Inc.

Antidote.me closes the gap between clinical trials and patients

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

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

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.

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

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

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

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

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.

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

Badoo is a dating-focused social networking service.

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

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

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

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