Company lists · Data refreshed September 2026
Top 25 Data technology companies based in the United Kingdom
RevenueBase identified 547 data technology companies headquartered in the United Kingdom as of September 2026 and tracks 8,600 professional contacts across them, including 3,034 with verified work emails. London is the largest hub.
This list covers data technology companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest data technology companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,100 contacts → | ||||
Partial evidence “Smartstream unlocks trusted, intelligent data insights – clearly, consistently, and without compromise.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 819 contacts → | ||||
Partial evidence “Ab Initio transforms how companies work with data, from data discovery and strategy through implementation and governance.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 722 contacts → | ||||
Partial evidence “Seagate Cloud Systems and Solutions (formerly Xyratex) provides Intelligent Information Infrastructure, enabling organizations to manage the digital data explosion and deliver on…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 206 contacts → | ||||
Partial evidence “Proact is Europe’s leading specialist in data and information management with focus on cloud services and data centre solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 186 contacts → | ||||
Strong evidence “We help you to transform your business with innovative technology, giving you the tools to tap into your data, reduce cost to serve and deliver world-class customer experience.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 157 contacts → | ||||
Partial evidence “We help ambitious organisations turn complex, fragmented data into AI‑ready foundations that deliver real business impact.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 152 contacts → | ||||
Indirect evidence “For over 25 years, Celebrus has set the gold standard globally for improving marketing effectiveness and preventing fraud across all industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 141 contacts → | ||||
Strong evidence “TuTeck Technologies is a next-generation global technology company that empowers enterprises to transform their businesses through data-driven insights and digital innovation.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 119 contacts → | ||||
Indirect evidence “Elastacloud has been acquired by Acora.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 116 contacts → | ||||
Partial evidence “Microsoft Partner of the Year 2024, Simpson Associates is a Data Transformation and managed services provider that helps organisations from both the public and private sectors…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 113 contacts → | ||||
Partial evidence “Founded in 2017, Aker is a modern data solutions provider, with offerings ranging from cloud-based software platforms to standardised, repeatable services that assist and empower…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 99 contacts → | ||||
Partial evidence “Envitia is an IT services and consulting company, specialising in complex data challenges.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 89 contacts → | ||||
Partial evidence “Integrate your systems, create a single trusted view of data and access real-time insights – all in one cloud-native solution.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 85 contacts → | ||||
Partial evidence “Make the most of your data with enterprise-ready software that helps you extract, enrich, and discover your company’s most valuable knowledge.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 83 contacts → | ||||
Strong evidence “We design, architect and integrate hybrid-cloud solutions for big-data and fast-data requirements, partnering with a network of global technology providers and innovative…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 70 contacts → | ||||
Partial evidence “Nowasys is a Data Engineering company based in the United Kingdom.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 69 contacts → | ||||
Indirect evidence “Altius is now an Avanade company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 65 contacts → | ||||
Partial evidence “Seriös Group are experts in data solutions, helping businesses to take control of their data, delivering rapid value without compromise.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 64 contacts → | ||||
Strong evidence “InterSystems, a creative data technology provider, delivers a unified foundation for next-generation applications for healthcare, finance, manufacturing, and supply chain…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 64 contacts → | ||||
Partial evidence “Solidatus gives you trust in your data and confidence in your decisions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 63 contacts → | ||||
Strong evidence “For over 25 years, CoreFiling’s innovations in data collection technology have helped to redefine the corporate and regulatory reporting landscape.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 62 contacts → | ||||
Partial evidence “Uptitude is a Data and Business Intelligence Consultancy that provides customised solutions to complex data problems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 61 contacts → | ||||
Strong evidence “Focusing on data and technology, we predict your customers’ future needs and improve engagement.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 58 contacts → | ||||
Partial evidence “Accelerate your data & AI journey with our Xperts.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 47 contacts → | ||||
Partial evidence “https://datatechnology.co.uk/ Our aim is to solve your business problems with data.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: data technology companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names data technology companies.
- Partial evidence
- Its own public description names part of data technology companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name data technology companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 547 data technology companies based in the United Kingdom
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Data technology companies based in the United Kingdom at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 547 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among data technology companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “data technology companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names data technology companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among data technology companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,034 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Data technology companies by metro
- Data technology companies in London226
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names data technology companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many data technology companies are there based in the United Kingdom?
RevenueBase identified 547 data technology companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Smartstream, headquartered in London, tops this list with the largest team on record.
Which city has the most data technology companies?
London leads with 226 headquartered companies, followed by Manchester (14) and Leeds (11).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,034 verified decision-maker contacts tracked across these 547 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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