Top Tech Startups in United Kingdom in 2026

CAIS is the leading open-architecture financial product platform offering the independent wealth management channel access to a menu of alternative investment funds and capital markets offerings. We are a FinTech, B2B organization that is leveling the playing field by providing research, diligence, access, and execution of complex financial products.

Map and manage global flows (cargo, data, money, etc.) using machine learning -- while preserving data privacy, data sovereignty, and data security.

Littledata is the data layer for Shopify, making it ridiculously easy for DTC brands to connect marketing channels with customer data to accelerate growth.We power thousands of data-driven brands with accurate ecommerce data into Google, Meta, Klaviyo and more. We have been remote-first since the beginning and maintain a thriving startup culture; we are proactive, curious and inspired by data. Join us as we take over the (data) world!

Countly is a product analytics solution and innovation enabler that helps teams track product performance and customer journey and behavior across mobile, web, and desktop applications. Ensuring privacy by design, Countly allows you to innovate and enhance your products to provide personalized and customized customer experiences, and meet key business and revenue goals. Countly empowers companies of any size or location to grow their business by helping them securely process billions of data points every day in the cloud and on-premise. Having tracked 1.5B+ unique identities on more than 16,000 applications and using over 2,000 servers worldwide, Countly is world leading product analytics platform. Countly provides an extensive list of customizable plugins and dozens of integrations, letting teams freely combine them and work with the data they actually need. This not only boosts team productivity, but also eliminates the need for multiple digital tools, drastically reducing your licensing costs. These plugins also allow granular multi-device customer intelligence data collection and analysis, letting you incorporate customer feedback into the design process, improving customer experience, driving sales conversions, and reducing churn. And because data-flow security is critical, the Countly Dashboard enables you to not only access settings within your team, but also provides a privacy-protection compliant environment so you can focus on innovation with customer intelligence, without worrying about compliance. An analytics platform as it should be: secure data ownership to track, measure, and take action, all in one place. With Countly, understand your digital customer journey across devices. Build better ones.

At Ledgy we believe that entrepreneurship is a main driver of positive change in the world. By democratizing ownership in startups, we not only help startups attract the best talent but also allow employees to become owners and eventually entrepreneurs themselves. We create transparency for all owners of a startup, and bring scalability to important processes for founders such as managing their stockholders, preparing financing rounds, managing investor relations, and granting equity to all their employees. Our customers are the leading scale-ups across Europe, like Frontify, Wefox, VIU, NA-KD, and many more. Since our incorporation in 2017, we’ve been listed every year among the TOP 100 of Swiss startups and are ranked as the #1 ICT startup in Switzerland as well as in the Top 10 Swiss Fintech startups to watch in 2020. Our plans for 2021 include expanding throughout Europe and building on the traction we've built throughout the UK, the Nordics, and beyond. Join us on our mission.

Securing the software development process, with a focus on improving developer velocity.

Wonderschool was started in 2016. The company’s mission is to ensure that every child has access to a home away from home that helps them realize their full potential. Wonderschool supports experienced educators and childcare providers to start their own childcares or preschools out of their homes, whether they live in apartments, condos, or homes that they rent or own. Wonderschool provides assistance with licensing, program setup, marketing and everything in between. The company’s software platform allows teachers to manage their students, parents, and their program from one dashboard. Along with this, Wonderschool has built a marketplace for parents to search Wonderschool programs, schedule visits, enroll their children, and make payments.

No-code ease meets open-source power! Prefab apps combine no-code app editors with the extensibility of open source components. Enable anyone to create apps without running up against feature limitations. Fliplet makes it easy for anyone to create, launch and maintain their own enterprise apps without needing to be a developer. This not only changes who can create apps but also the type of apps that are created. The cost of creating and maintaining apps previously made app creation prohibitive for the vast majority of businesses - the apps simply didn’t get built. Now apps can be built and published to a mobile device within 15 minutes. Updates can be published instantly. The infrastructure, security, data management is all handled for you by Fliplet. Apps created with Fliplet are used to support key business processes such as communications, business information reporting, training, sales and marketing.

Our mission: to connect every system in the world! Tyk is an open-source API Gateway that is fast, scalable and modern. Out of the box, Tyk offers an API Management Platform with an API Gateway, API Analytics, Developer Portal and API Management Dashboard. SaaS, On-premises or Multi-Cloud? API Gateways require low latency, scalability, performance and reliability whilst minimising your total cost of ownership. We have designed Tyk Platform to work for your services, your team and your budget. With Tyk, you can focus on creating services instead of implementing management infrastructure. From completely isolated, on-premises installations to SaaS and Multi-Cloud deployments,m we have API gateway options that match your needs. With Tyk, you can focus on creating services instead of implementing management infrastructure.

Monte Carlo is leading one of the most promising emerging categories in SaaS, Data Reliability. Monte Carlo helps data teams manage data reliability in the same way that New Relic helps engineering teams manage application reliability. As companies invest millions to become data-driven, Monte Carlo helps solve one of the biggest challenges data/analytics/ML teams face today: making sure data can be trusted at all times by minimizing data downtime. Founded in 2019 by Barr Moses and Lior Gavish, Monte Carlo is backed by Accel, GGV, the former Chief Technologist of Cloudera, and former Chief Data Scientist of the United States.