Top London Big Data Companies (120)

As businesses increasingly rely on data and AI to power digital products and drive better decision-making, it's mission-critical that this data is accurate and reliable. Monte Carlo, the data + AI observability leader, is the creator of the industry's first end-to-end Data & AI Observability platform. Our mission is to enable the world's enterprises to adopt trusted AI. In 2025, Monte...

GRAIL is a healthcare company whose mission is to detect cancer early, when it can be cured. GRAIL is using the power of high-intensity sequencing, population-scale clinical studies, and state-of-the-art computer science and data science to enhance the scientific understanding of cancer biology, and to develop and commercialize pioneering products.

The database market is big. How big? Well, according to IDC, it’ll reach $153 billion by 2027. And MongoDB is at the forefront of that innovation with thousands of customers across the globe. We empower developers and businesses to build and deploy the applications they want, wherever they want.

Celonis makes processes work — for people, companies, and the planet. Powered by process mining and AI, the Celonis Process Intelligence Platform integrates process data and business context to create a living digital twin of business operations. We enable thousands of companies worldwide to understand how their business actually runs and, together with their partners, build intelligent solutions that transform...

Together, we power advertising that enables billions of people to stay informed, entertained, and connected. We introduce them to new ideas, products, and services that make their lives better. And we help media owners of all sizes realize their full potential. That’s a lot — that’s the power of advertising. But it’s only possible with great technology. And that’s where Magnite...

At Starburst, we are working to dismantle the status quo of data silos and vendor lock-in every single day. Starburst offers a full-featured data lake analytics platform, built on open-source Trino. Our platform includes all the capabilities needed to discover, organize, and consume data without the need for time-consuming and costly migration projects. Today more than 200 leading organizations trust...

Nasuni transforms how enterprises store, protect, and access their file data. The Nasuni File Data Platform replaces legacy file servers, NAS, backup, and disaster recovery with one secure, cloud-based solution. It lets global teams access and collaborate on files anywhere, scale effortlessly across hybrid-cloud environments, and recover instantly from ransomware or outages. Trusted by leading companies in manufacturing, media, AEC, and more,...

At Morningstar, we believe in building great products in-house in a highly collaborative, agile environment where we focus on technical excellence, the user experience, and continuous improvement. Our technologists represent a range of skills and experience levels, but they all view their work as a craft and push technology’s boundaries.

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance,...

Nexthink is the global leader in digital employee experience management. Our platform empowers IT teams with real-time visibility, analytics, and automation to proactively detect and resolve issues across any application, device, or network—before they affect employees. By shifting IT from reactive problem-solving to continuous optimization, Nexthink enables more than 1,300 organizations to create productive, seamless, and satisfying digital workplaces for...

Rubrik (NYSE: RBRK) is on a mission to secure the world’s data. With Zero Trust Data Security™, we help organizations achieve business resilience against cyberattacks, malicious insiders, and operational disruptions. Rubrik Security Cloud, powered by machine learning, secures data across enterprise, cloud, and SaaS applications. We help organizations uphold data integrity, deliver data availability that withstands adverse conditions, continuously monitor...

Dynatrace lets customers understand their business like never before, so they can see beyond the complexity, find and fix problems faster and automate manual tasks with Al — so they can focus on what truly matters: running their business.

InterSystems builds the software that makes complex systems work—reliably, securely, and at scale. For more than 45 years, we’ve been the information engine behind some of the world’s most mission-critical applications in healthcare, government, and business. Our data management, integration, and analytics technologies help organizations connect disparate systems, turn data into insight, and deliver better outcomes. From enabling interoperable healthcare and...

TransUnion is a global information and insights company that makes trust possible by ensuring that each consumer is reliably and safely represented in the marketplace. We do this by having an accurate and comprehensive picture of each person. This picture is grounded in our legacy as a credit reporting agency which enables us to tap into both credit and public record...

We passionately believe in the power of technology to make a difference. Chris and David, both software engineers, founded Beacon in 2017 to build a new kind of charity CRM using the latest technology and design principles. Now hundreds of innovative charities around the world trust Beacon to run their core technology infrastructure. Animal welfare, human rights, disaster relief, cancer support -...

Data has endless potential, if people can trust it. Collibra helps organizations turn data into a trusted asset that drives business value, innovation, and AI readiness. Our cloud-based data intelligence platform connects data, people, and processes across the enterprise so teams can find, understand, and use the right data with confidence. By uniting governance, quality, privacy, lineage, and catalog capabilities in one...

Global digital identity and fraud solutions, working to create a world where everyone can transact online with confidence Our market-leading technology, data and expertise help our customers improve digital access, deliver a seamless experience and establish trust so that they can transact quickly, safely and securely with their customers online. Headquartered in the UK and with over 1,000...

Ancestry is the global leader in family history and consumer genomics. Every day, around the world, we help curious people like you embark on journeys of personal discovery to enrich lives. With our unparalleled collection of more than 40 billion records from more than 80 countries and 23+ million people in our growing DNA network, Ancestry helps customers discover their family...

Sensor Tower cultivates responsibly sourced market intelligence that provides visibility into the trends shaping the global digital economy. Our customers use these insights to help them make better business decisions. Sensor Tower data is frequently cited by top-tier trusted media institutions, including the New York Times, Bloomberg, Reuters, CNBC and more, as well as financial and academic institutions.

Who is Nexxen? We can be a one-stop shop for everything digital media advertising. Flexible advertising, unified by data. Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them. Our flexible and unified technology stack comprises a demand-side platform (“DSP”) and supply-side platform (“SSP”), with the...