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Top London Big Data Companies (74)

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AdTech • Big Data • Digital Media • Marketing Tech
16 Offices
900 Employees

Integral Ad Science (IAS) is a leading global media measurement and optimization platform that delivers the industry’s most actionable data to drive superior results for the world’s largest advertisers, publishers, and media platforms. IAS’s software provides comprehensive and enriched data that ensures ads are seen by real people in safe and suitable environments, while improving return on ad spend for advertisers and yield for publishers. Our mission is to be the global benchmark for trust and transparency in digital media quality. For more information, visit integralads.com.


Artificial Intelligence • Big Data • Retail • Security • Social Impact • Software • Business Intelligence
4 Offices
212 Employees

We have over 33,000 retail stores and 50,000 retail users using the Auror platform globally. We have a common goal - that is to connect people and organisations with timely intel to proactively combat highly Organized Retail Crime (ORC) groups who are reselling billions of dollars in merchandise. The impact that shoplifting has on profits, customer experience and in-store safety has reached epidemic levels globally, and we are here to partner with retailers and law enforcement to ultimately build safer communities. We are a global organisation with teams across New Zealand, Australia, United States, Canada and the United Kingdom. Despite the geographical locations and time zone differences, we strive to maintain a collaborative work culture and do our best to avoid silos. We do this by creating a talent selection process that is inclusive and reflective of our culture and what’s important to us.


Big Data • Fintech • Information Technology • Business Intelligence • Financial Services • Cybersecurity • Big Data Analytics
38 Offices
15,000 Employees

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 data; our data fusion methodology that helps us link, match and tap into the awesome combined power of that data; and our knowledgeable and passionate team, who stewards the information with expertise, and in accordance with local legislation around the world. Because of our work, organizations can better understand consumers in order to make more informed decisions, and earn their trust through great, personalized experiences, and the proactive extension of the right opportunities, tools and offers. In turn, consumers can be confident that their data identities will result in the opportunities they deserve. We make trust possible, so businesses and consumers can transact with confidence and achieve great things. We call this Information for Good®—it’s our purpose, and what drives us every day.


Artificial Intelligence • Big Data • Healthtech • Machine Learning • Software • Biotech
4 Offices
1,300 Employees

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


Artificial Intelligence • Big Data • Healthtech • Machine Learning • Software • Database • Analytics
31 Offices
1,800 Employees

InterSystems has been the information engine behind the world's most important applications in healthcare, business and government for over 40 years. Our software products provide advanced data management, integration, and analytics technologies used daily by millions of people in 80+ countries.


Big Data • Cloud • Internet of Things • Productivity • Business Intelligence
5 Offices
502 Employees

Nasuni is a leading hybrid cloud storage solution that powers business growth with effortless scalability, built-in security, and fast edge performance using a unique cloud-native architecture. The Nasuni File Data Platform delivers operational excellence by consolidating NAS and backup, eliminating data silos, and making management easy and flexible without changes to apps or workflows. Its built-in security offers proactive defense and rapid recovery, lowering organization’s risk from the detrimental effects of ransomware attacks and other disasters. Synchronized access to file data everywhere ensures user productivity by supporting remote and hybrid work. By leveraging object storage, data is consolidated and optimized for content intelligence tools and AI workflows. Organizations worldwide rely on Nasuni, including leaders in manufacturing, construction, energy, consumer goods, and public sectors. Nasuni’s corporate headquarters are located in Boston, Massachusetts, USA and the company delivers services to over 70 countries. For more information, visit www.nasuni.com.


Artificial Intelligence • Big Data • Fintech • Machine Learning • Analytics
London, England, GB
13 Employees

DeepTech industry analytics, benchmarking and forecasting renowned for its analytics and strategic consulting services on AI and DeepTech. Its Pharma Division is the leading provider of deep industry intelligence for the AI in Pharma sector.


Artificial Intelligence • Big Data • Information Technology • Machine Learning • Software
London, England, GB
200 Employees

SBDA offers tailor-made IT-solutions empowered by machine learning and artificial intelligence. We help companies all over the globe optimize their key business processes


Artificial Intelligence • Big Data • Information Technology • Software
5 Offices
2,103 Employees

BJSS is an award-winning technology and engineering consultancy for business. As the winner of a Queen’s Award for Enterprise, we work with the world’s largest organisations, delivering the IT solutions that millions of people use every day. http://www.bjss.com https://www.bjss.com/joinus/


Big Data • Information Technology • Machine Learning • Analytics
Westminster, GB
61 Employees

PredictX delivers big data, machine learning, and decision automation services to data-reliant industries, in particular financial services, procurement, retail, travel and healthcare. Using embedded intelligence and data visualisation technology, PredictX continuously drive cost savings, operational efficiencies and revenue growth. PredictX supports clients in capturing, cleaning and compiling their data from multiple sources from within and outside the business.


Big Data • Cloud • Information Technology • Other • Sales • Software • Cybersecurity
5 Offices
131 Employees

Graylog specialises in delivering top-notch Threat Detection, Investigation, & Response (TDIR) solutions, backed by our latest addition, the Graylog API security platform. As a renowned centralised log management (CLM) and Security Information Event Management (SIEM) provider, we offer unparalleled fast and efficient log analysis capabilities in critical areas such as security, compliance, operations, and DevOps. Our enterprise solution enables organisations globally to capture, store, and analyse terabytes of machine data in near-real time while our open-source product has been deployed in more than 50,000 installations worldwide, empowering individuals and small teams to perform basic log consolidation, analysis, and search functions at no cost. Recent achievements for Graylog have been inclusion in the 2021 Deloitte Technology Fast 500™, we took home two of the most prestigious cybersecurity awards in SIEM and DevSecOps from Cyber Defence Magazine at RSA in 2023, and 2024 has seen us take home gold and become the Globee Winner for Security Information & Event Management and the 2024 Globee Winner for Threat Hunting, Detection, Intelligence, and Response.


Big Data • Cloud • Consumer Web • Healthtech • Software • Cybersecurity • Generative AI
21 Offices
60,000 Employees

Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has leveraged its software engineering expertise to become a leading global product development, digital platform engineering, and top digital and product design agency. Through its ‘Engineering DNA’ and innovative strategy, consulting, and design capabilities, EPAM works in collaboration with its customers to deliver next-gen solutions that turn complex business challenges into real business outcomes. EPAM’s global teams serve customers in more than 45 countries across five continents. As a recognized market leader in multiple categories among top global independent research agencies, EPAM was one of only four technology companies to appear on Forbes 25 Fastest Growing Public Tech Companies list every year of publication since 2013 and ranked as the top IT services company on Fortune’s 100 Fastest-Growing Companies list in 2019, 2020, and 2021.


Artificial Intelligence • Big Data • Information Technology • Security • Software
5 Offices
63,258 Employees

Thales is a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust, which is vital to the development of our societies. The company provides solutions, services and products that help its customers – businesses, organisations and states – in the defence, aeronautics, space, transportation and digital identity and security markets to fulfil their critical missions, by placing humans at the heart of the decision-making process.


Big Data • Information Technology • Logistics • Marketing Tech • Analytics
2 Offices
10,000 Employees

About HAVI HAVI is a global, privately owned company that connects people with ideas, data with insights, supply with demand, restaurants with deliveries, and ultimately, people with the products they love. Whether we are sourcing, storing, or delivering products, we bring unmatched category expertise and unrivaled operational excellence, combined with powerful digital analytics and insights. Founded in 1974, HAVI employs more than 10,000 people and serves customers in more than 100 countries. HAVI’s business units include Supply Chain, tms, and Stanley. Our portfolio of businesses offers best-in-class sourcing and supply chain capabilities, brand-defining marketing and promotion services, and innovative consumer products. For more information, please visit  HAVI.com, tmsw.com, and stanley1913.com.


Big Data • Cloud • Software • Cybersecurity • Quantum Computing
7 Offices
75,792 Employees

Atos is a global leader in digital transformation with 110,000 employees and annual revenue of € 12 billion. European number one in Cybersecurity, Cloud and High-Performance Computing, the Group provides tailored end-to-end solutions for all industries in 73 countries. Pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos operates under the brands Atos and Atos|Syntel. Atos is a SE (Societas Europaea), listed on the CAC40 Paris stock index. The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.


Big Data • Software • Analytics
London, England, GB
20 Employees

Accelerating the development of truly safe autonomous vehicles.


Big Data • Information Technology
London, England, GB
32 Employees

QuestDB is an open-source database designed to process time-series data, faster. Our approach comes from low-latency trading; QuestDB’s stack is engineered from scratch and dependency-free. YCombinator S20, InfoWorld's 2020 Best of OSS Award Winner & Accel's #Open100


Artificial Intelligence • Big Data • Information Technology • Machine Learning • Software • Analytics
London, GB
20 Employees

Bitfount is a federated privacy-preserving platform for AI and data collaboration. Use cases range from discovering and evaluating third-party datasets, to running data consortia, training advanced AI models, and much more.


Big Data • Big Data Analytics
London, GB
11 Employees

Gravity's mission is to make streaming data easy from over 100 sources while only paying for what you use. Gravity removes the reliance on engineering teams to deliver streaming pipelines with a simple interface to get streaming up and running in minutes from databases, event data and APIs. Everyone in the data team can now build with simple point and click so that you can focus on building apps, services and customer experiences. Learn more at https://gravitydata.co/


Big Data • Information Technology • Real Estate
London, England, GB
13 Employees

Oparo was the first algorithm-driven Real Estate investment house to launch in the U.K. We use our technology solely for the delivery of Social and Supported Housing and the management of those homes. During 2022 Oparo delivered 135 supported housing units focused on tenant wellness worth £30m, and partnered with various Housing Associations aiding in their development and asset management programs. In 2023 Oparo Group closed institutional funding to deliver £500m of Mainstream Housing and secured mandates for an additional 550 Supported Accommodation places