Top Tech Startups in London, United Kingdom in 2026

Tray.io is a low-code, cloud-first approach to automation. We've built a scalable, resilient, and secure platform that transforms fragmented process into powerful business outcomes. Using the Tray platform, organizations can connect their entire cloud stack using APIs, and thanks to a visual workflow builder, customers can easily create automations that drive their business processes using clicks or code. Our focus is currently on the automation and integration of cloud software, but our bigger goal is to build a platform that is use-case agnostic and supports creating all kinds of software. Our challenge is to build a cutting edge product that is powerful and complete while also being beautiful and easy to use.

Wunderkind is a leading performance marketing engine that delivers tailored experiences at scale. Digital businesses use Wunderkind to remember who users are better than ever before, allowing them to deliver high-performing, one-to-one messages on websites, through emails and texts, and in ads at a scale that’s not otherwise possible. Wunderkind drives $1.2 billion dollars annually in directly attributable revenue for top eCommerce brands like Uniqlo, Sonos and HelloFresh, often ranking as a top-3 revenue channel in their own analytics. Wunderkind is maniacally obsessed with ROI and aims to be the infrastructural interface between individuals and brands in a world where consumers choose what they want, from whom, and when. Learn more at wunderkind.co.

Tapcart is a SaaS platform that enables ecommerce merchants to launch and manage mobile apps for their brand. As the market leader in mobile ecommerce, we focus on providing great experiences for our customers and for mobile shoppers worldwide. Our platform powers the mobile apps of some of the largest shopping brands, including Fashion Nova, Chubbies, The Hundreds and many more. We are inspired by the future. We work to inspire the future. Recently featured at Shopify UNITE, Google I/O and in The Verge, Tapcart is trusted by over 5,000 brands to launch and manage their mobile apps.

Faire was founded in 2017 on the belief that the future is local. We’re helping independent entrepreneurs chase their dreams by building an online wholesale marketplace that connects local retailers with thousands of emerging and established brands. Our platform empowers independent retailers with the advantages of big-box terms, and helps independent makers build and simplify their wholesale business.

Payhawk is the leading global spend management solution for scaling businesses, present in more than 32 countries across two continents. Our customer-centric organisation and the product-oriented team have helped disrupt the expense management market, by combining company cards, expenses and invoice payments - enabling finance teams to control and automate company spending at scale. The Payhawk customer base includes fast-growing and mature multinational companies including LuxAir, Gtmhub, and Wagestream. With offices in New York, London, Berlin, Barcelona, Paris, Amsterdam and Sofia; Payhawk is backed by renowned investors such as Lightspeed Venture Partners, Greenoaks, QED Investors, Earlybird Digital East, and Eleven Ventures. Our values include supporting flat hierarchies, taking ownership and responsibility, seeking and providing feedback, managing constructive critique, and speaking our minds. We understand that the best ideas don’t all come from the same place, so we encourage diversity and inclusion in all areas of our work.

TOGGLE helps all investors make better decisions - crunching a vast universe of data to tell you exactly what you need to know. Think of TOGGLE as Waze for investing: you're in charge and can rely on TOGGLE to alert you when there is a pothole coming up, or traffic jam forming ahead of you. "Toggle is the Bloomberg Terminal for retail investors...just as Schwab, Interactive Brokers, and now newcomers like Robinhood and Betterment have disrupted market access for retail investors, Toggle is aiming to disrupt investment analysis." - Business Insider We are an experienced team of technology and finance professionals who came together to build useful tools we actually wanted to use. 

Better data leads to more performant models. Performant models lead to faster deployment. We help deliver value from AI investments faster with better data by providing an end-to-end solution to manage the entire ML lifecycle.

JustPark is The Parking App leading a £50bn industry into the digital age. Parking has been difficult for too long, and we’re on a mission to make it easy. Today, we enable over 1.5 million drivers to enjoy easy parking - and also help over 20,000 property owners to manage their parking assets more effectively. Our 5-star apps help drivers find parking in seconds, with 1.4 million spaces to choose from - providing real-time information on price, availability and restrictions. You can even reserve and pay for a guaranteed space at 20,000+ locations, and extend your time in a couple of taps of the app - giving you total peace of mind. On the flip side, our award-winning car park technology unlocks underutliised space for drivers and helps property owners to maximise their revenue. From driveways to offices; hotels to hospitals; council-owned to commercially-run car parks - we offer industry-leading, data-driven solutions, trusted by Marriott, Hilton, JLL, BT, Savills and many more.

Humaans is the fastest way to onboard and manage your staff. It turns complex processes like employee onboarding, offboarding, and compensation management into simple workflows by integrating with other point solutions, such as Gsuite, Slack, Docusign, and Greenhouse. We're building a new kind of employee management system designed to help People Ops, Finance, and IT teams operate collaboratively by using the best in class point solutions they want for their staff while maintaining a central record of employee data. How do we get there? By focusing relentlessly around customers’ needs and their experience, and prioritising design, quality and performance.