Top Tech Startups in London, United Kingdom in 2026

Gr4vy is a cloud payments company that takes the complexity out of running your own payments infrastructure by doing it for you. We can deploy services on our cloud across the globe, deploying on the edge close to your customers. We can even allow you to host our services on your own networks. Centralized reporting, monitoring, and management mean all parts of your business will benefit from a single streamlined system, saving you time and money.

Feeld is a dating app for the curious; for those open to experiencing people and relationships in a new way. Our mission is to elevate the human experience of sexuality and relationships and create a world where everyone is more intimately connected to each other and themselves.

A real-life experience is supposed to be delightful. But having to choose and book one online today is the opposite. The lack of trust, the difficulty in choosing the right experience and booking hassles can make exploring the world around us a daunting task. How do we solve this? Through curating journeys, partnering with the best partners and striving to build consistent experiences. With over 7000+ experiences over more than 125 cities across the world, we've served guests from 195 countries and have no plans of stopping!

Lineaum's (lineaum.com) AI infrastructure layer automates private aviation from request to takeoff. Lineaum OS connects clients, brokers and operators through one transaction layer, automating aircraft sourcing, quoting, contracts, payments and booking across a global network of 30,000+ aircraft and 10,500 operators. • 30,000+ Aircraft • 10,500 Operators • 190 Countries • 12,000 Airports "LIN", Lineaum’s AI jet concierge assistant, turns hours of manual private jet booking into one command: “LIN, book me a jet to New York tomorrow at 8am.” LIN then handles everything from aircraft sourcing, price comparison to digital contracts, card payments, and booking in minutes.

The small team behind Payhip is based in London. The co-founders Abs Farah and Kahin Farah are engineers and designers. The team decided to create Payhip back in 2011 as there was no easy and reliable way to sell digital products or memberships. Payhip is bootstrapped (self-funded) and profitable. In order to truly make a dent in our mission, we’ve set ourselves a goal of helping creators reach $1,000,000,000 in sales. We don't know how long it will take but achieving this goal is the embodiment of our mission and it's why we exist.

The team at Pattern is leveraging our experience building sophisticated autonomous robots to address pressing industrial applications. Our robots operate both indoors and outdoors, around people and vehicles. We're riding the sweet spot between cutting-edge r&d and actual solution scaling. Our goal is to build the most capable autonomy systems for the most challenging unstructured environments in the solar system by quickly scaling, learning, and delivering real value by solving stepping stone applications immediately. We can do this because we love the thrill of adventure and exploration. The thrill of being pioneers. It's partly our Colorado roots, beckoning us to go faster/bigger/further than anyone before. We have mountains to climb! (figuratively & literally) .

We are building the next enterprise search engine fueled by NLP and open-source. Building on top of latest NLP research we leverage question answering & transfer learning to provide granular, semantic search results tailored to your domain. Haystack on GitHub: github.com/deepset-ai/haystack Haystack Website: haystack.deepset.ai

We help life sciences firms accelerate innovation. DeciBio provides life science consulting and market intelligence for firms in the clinical diagnostics, life science research tools, health technology, and adjacent markets. Our goal is to provide market data and strategic insights to drive disruption and innovation in the life sciences industry. Life science market intelligence reports enable firms to succeed in complex, competitive markets. Our carefully researched market intelligence products help life sciences firms thoroughly assess key markets and identify opportunities for future growth. Life science consulting services offer answers to the most challenging business questions. Partner with our seasoned experts to discover new market opportunities, evaluate how your products fit with customer needs, assess the impact of company initiatives, and understand market events and how they affect your company's bottom line and future growth. The DeciBio Difference: We thrive in markets requiring the unique combination of deep scientific understanding and business insights.

Autone is reimagining the future of retail with cutting-edge AI-driven intelligence, empowering brands to make smart, waste-free decisions that drive growth and efficiency. Trusted by over 50 global brands, we blend advanced AI and deep retail expertise to unlock seamless collaboration between supply chains and human insight. The result? Reduced inventory waste, boosted sales, and precise forecasting that saves money and enhances operations—all while empowering teams to focus on what they do best. Founded in London in 2021 and backed by industry giants like Y Combinator & General Catalyst, Autone is moving fast to transform retail as we know it. Join us on this journey to a smarter, more agile future.

Monumental is automating on-site construction with robotics and software. Our mission is to make construction primarily software-defined and work towards a future where beautiful, bespoke buildings are built within a single day with minimal labour. Our bricklaying robots are being deployed on real construction sites all over the Netherlands, for paying customers. We’re accelerating the production of our robot fleet to meet growing demand for our products and scaling our R&D team. This is a unique opportunity to be an early employee at a startup be immersed in a high-growth, high-ambition startup environment, and work with an experienced founding team surrounded by top-tier investors from day 1. You can read a bit more on why we believe you should spend your time working on construction, learn more about our vision and about the company here: monumental.co/jobs