Top Tech Startups in London, United Kingdom in 2026

Contentful, the leading content platform for digital-first business, helps over 30% of the Fortune 500 and thousands of brands around the world create and manage digital experiences for their customers across any channel. It enables greater speed and scale than traditional CMS solutions. Contentful unifies content in a single hub, structures it for use in any digital channel, and integrates seamlessly with hundreds of other tools through open APIs. Companies such as Gucci, Plaid, Goodrx, Intercom, Notion, Staples and many others rely on Contentful’s platform. For more information, visit contentful.com.

Postman is the leading API platform, used by 17 million developers and 500,000 organizations worldwide. Postman simplifies each step of the API lifecycle and streamlines collaboration so developers and teams can create better APIs—faster. Postman is a global company with headquarters in San Francisco, a large office in Bangalore (where the company was founded), and distributed team members on four continents. Postman is privately held, with funding from Insight Partners, CRV, Nexus Venture Partners, Coatue, Battery Ventures, and BOND. Learn more at postman.com or connect with Postman on Twitter via @getpostman.

Founded in 2019, Uncapped is Europe’s first revenue-based finance provider, which allows founders to raise growth capital without giving up control of their business. The company was born out of frustration with the limited financing options available for European entrepreneurs. Uncapped provides business advances of between £10k and £1m with 0% interest and no hidden charges, allowing founders to access fair and flexible finance. It makes money by charging a low flat fee which is paid back from future sales revenue.

SeedLegals is the one-stop destination for taking care of all the legals you’ll need to build, run and fund your company. There are 100,000 new growth startups in the UK every year. Each spends thousands of pounds on unique documentation. SeedLegals uses the power of the network to change that. Using mass deal data and the network effect, SeedLegals gives you the knowledge, documentation and data to build corporate, team and funding agreements that are perfect for your company. SeedLegals gives each the knowledge & data to make the best decisions for their startup funding & legals, and puts them in control.

DISCO is the leading provider of ediscovery solutions for law firms, corporations, and government agencies. With technology and services that automate and simplify complex and error-prone tasks that distract from practicing law, DISCO empowers lawyers and their teams to effectively manage discovery processes. DISCO is the ediscovery choice of leading U.S. law firms including litigation boutiques and AmLaw, Fortune 500 companies, as well as government agencies around the world. Ready for an ediscovery upgrade? Request a demo at demo.csdisco.com.

Headquartered in New York City, Take-Two Interactive Software is a leading developer, publisher and marketer of interactive entertainment for consumers around the globe. Our company develops and publishes products principally through its wholly-owned labels Rockstar Games and 2K, as well as its Private Division label and Social Point, a leading developer of mobile games. Some of our largest hits include the Civilization series, NBA2K, Bioshock Infinite as well as many other titles throughout the years.

Intercom is the world’s first customer platform helping internet businesses accelerate growth. Thanks to the internet, the way people communicate is drastically different than it was 10, even 5 years ago. Messengers like WhatsApp have become the preferred mode of communication in every aspect of consumers’ lives, and now that switch is happening with businesses too. Intercom builds a suite of messaging-first products that all modern internet businesses can use to accelerate growth across the customer lifecycle- from acquisition, to engagement, and support. Today more than 25,000 businesses, including New Relic, Sotheby’s, and Shopify, use Intercom to connect with a billion unique people worldwide.

Founded in 2013, MarcoPolo Learning is an award-winning producer of educational media for the digital generation. The company's flagship product, MarcoPolo World School, is an Emmy-nominated STEAM + literacy learning program that features a robust library of over 500 video lessons and thousands of learning activities for children ages 3-7. The characters in MarcoPolo World School, The Polos, were designed to engage children in early learning subjects and critical 21st century skills development. The Polos television series is also broadcast globally on leading channels such as Discovery Family (USA), BT TV (UK), NatGeo Kids (LatAm), Viacom (India), YouKu (China), reaching over 500 millions households. The company is headquartered in London with offices in New York and Shanghai.

Partly is UK-based, with an early team in the US, and our core engineering team in Christchurch, New Zealand. Partly's mission is to connect the world's parts and we're doing that by building the first global platform for replacement parts, starting with auto parts. Our big vision is to accelerate the world towards a sustainable future where waste is eliminated and all replacement parts are universally searchable, accessible and available to all. We've more than tripled our team over the last 12 months and expect to double in size again over the coming 12 months. We're a global team spanning both Europe and Australasia. Founded by ex-Rocket Lab engineers, we utilise bleeding-edge technology to solve challenging but exciting problems that make a huge impact in a $1.9 trillion industry. We provide a scalable digital infrastructure solution to some of the world's largest businesses and the most exciting startups. Partly's solutions are integrated across hundreds of companies globally, providing the backbone for cataloguing and managing parts online. Blackbird Ventures (Canva, CultureAmp etc.) led both our Pre-Seed and Seed rounds, alongside I2BF (NYC), Hillfarrance, Icehouse, Peter Beck (Rocket Lab), Akshay Kothari (Notion Co-Founder) and Dylan Field (Figma Co-Founder). We're continuing to build a world-class team and ensuring Partly is a place where people can do the best work of their lives. We're proud of the culture we've built at Partly, and our values are lived throughout every experience.

DriveWealth is a financial technology firm pioneering embedded finance, fractional investing in US equities, and API-driven brokerage infrastructure. We’ve built patent-pending technology to fractionalize US equities and were the first to receive a license to do so in 2015. We help banks, fintechs, RIAs, and global brands build investing experiences in 153 countries. Some of our partners are Revolut, Hatch, MoneyLion, Stake, and Avenue.