Company lists · Data refreshed September 2026

Top 25 Information services companies based in the United Kingdom

Name: Information services companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 1,006 companies tracked

RevenueBase identified 1,006 information services companies headquartered in the United Kingdom as of September 2026 and tracks 13,201 professional contacts across them, including 4,327 with verified work emails. London is the largest hub.

This list covers information services 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

1,006Companies

13,201Contacts tracked

4,327Verified emails

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The 25 largest information services companies based in the United Kingdom

Ranked by team size

Top 25 of 1,006 information services companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to information services companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Caci LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,663 contacts →
	Indirect evidence “CACI offers an unrivalled range of data, marketing and IT solutions to a wide range of industries across both the public and private sectors.” Source: RevenueBase Database · checked Sep 20, 2026
2	First Derivative	Indirect evidence	Newry, United KingdomHQ checked Sep 20, 2026	1,001-5,000	988 contacts →
	Indirect evidence “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Source: RevenueBase Database · checked Sep 20, 2026
3	The Smart Cube	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	702 contacts →
	Indirect evidence “We provide high performing intelligence that answers critical business questions for leading companies around the world.” Source: RevenueBase Database · checked Sep 20, 2026
4	Infiniti Research LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	651 contacts →
	Indirect evidence “Infiniti Research is a leading provider of market intelligence and customer intelligence solutions with 20+ years’ experience spanning across 20+ industries.” Source: RevenueBase Database · checked Sep 20, 2026
5	Savanta	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	464 contacts →
	Indirect evidence “Savanta is a fast-growing data, market research and advisory company.” Source: RevenueBase Database · checked Sep 20, 2026
6	Hirexa Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	377 contacts →
	Indirect evidence “Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Source: RevenueBase Database · checked Sep 20, 2026
7	Cartesian	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	302 contacts →
	Indirect evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 20, 2026
8	Kalibrate	Indirect evidence	Manchester, United KingdomHQ checked Sep 20, 2026	201-500	297 contacts →
	Indirect evidence “Success starts with data-driven decisions.” Source: RevenueBase Database · checked Sep 20, 2026
9	Thorogood	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	230 contacts →
	Indirect evidence “Thorogood is an independent consultancy that provides end-to-end data, AI and analytics solutions.” Source: RevenueBase Database · checked Sep 20, 2026
10	Fusion Global Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	219 contacts →
	Indirect evidence “As a global leader in service management, we help businesses transform their operations with data-driven insights, scalable digital solutions, and measurable results.” Source: RevenueBase Database · checked Sep 20, 2026
11	Quantzig	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	216 contacts →
	Indirect evidence “Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.” Source: RevenueBase Database · checked Sep 20, 2026
12	RFI Global	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	211 contacts →
	Indirect evidence “RFI Global is the only global data and insights company focusing exclusively on financial services.” Source: RevenueBase Database · checked Sep 20, 2026
13	Business Science Corporation	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	140 contacts →
	Indirect evidence “Business Science Corporation apply science and technology in order to ensure that our clients significantly increase their performance by giving them both the knowledge to perform…” Source: RevenueBase Database · checked Sep 20, 2026
14	IBU	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	139 contacts →
	Strong evidence “We are the most trusted consulting & Information Technology service partner, who has been thriving hard to deliver customer-centric and proven global competence to our clients all…” Source: RevenueBase Database · checked Sep 20, 2026
15	Emis Insights	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	131 contacts →
	Indirect evidence “EMIS, an ISI Markets product line, is the leading provider of reliable industry and company intelligence on fast-growing markets.” Source: RevenueBase Database · checked Sep 20, 2026
16	Orchestra	Indirect evidence	Woolwich, United KingdomHQ checked Sep 20, 2026	n/a	129 contacts →
	Indirect evidence “Founded in 2007, we are independent, knowledgeable and reliable.” Source: RevenueBase Database · checked Sep 20, 2026
17	Rocsearch	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	125 contacts →
	Indirect evidence “RocSearch is an industry leader in customised business intelligence solutions.” Source: RevenueBase Database · checked Sep 20, 2026
18	Valiant Business Media	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “Valiant Business Media is a global business intelligence and consulting group.” Source: RevenueBase Database · checked Sep 20, 2026
19	PFU Emea Limited	Strong evidence	Middlesex, United KingdomHQ checked Sep 20, 2026	51-200	106 contacts →
	Strong evidence “Information is the lifeblood of business.” Source: RevenueBase Database · checked Sep 20, 2026
20	BVA Bdrc	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	105 contacts →
	Indirect evidence “BVA BDRC is now part of Ipsos, and using the Ipsos brand name, following acquisition in June 2025.” Source: RevenueBase Database · checked Sep 20, 2026
21	Envitia	Indirect evidence	Horsham, United KingdomHQ checked Sep 20, 2026	51-200	99 contacts →
	Indirect evidence “Envitia is an IT services and consulting company, specialising in complex data challenges.” Source: RevenueBase Database · checked Sep 20, 2026
22	Cognition Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	79 contacts →
	Indirect evidence “With 26+ years of experience and more than 500+ professionals, Cognition empowers growth for B2B organizations by delivering reliable data, intelligence, and actionable insights…” Source: RevenueBase Database · checked Sep 20, 2026
23	Hybytes	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	79 contacts →
	Indirect evidence “Hybytes is an offshore/domestic solution provider for IT and Management to business and industry.” Source: RevenueBase Database · checked Sep 20, 2026
24	2cv	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	76 contacts →
	Indirect evidence “Not just insight.” Source: RevenueBase Database · checked Sep 20, 2026
25	Excalibur Communications	Indirect evidence	Swindon, United KingdomHQ checked Sep 20, 2026	51-200	72 contacts →
	Indirect evidence “Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.” Source: RevenueBase Database · checked Sep 20, 2026

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: information services 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 information services companies.
Partial evidence: Its own public description names part of information services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name information services 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 1,006 information services companies based in the United Kingdom

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Information services companies based in the United Kingdom at a glance

As of Sep 20, 2026

32.8%Verified-email coverage

13.1Average contacts per company

1-10Median size (employees)

41.5%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

676

11-50

203

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,006 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 information services 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 “information services 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 information services 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 information services 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, 4,327 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 20, 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.

Information services companies by metro

Information services companies in London417
Information services companies in Manchester25

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 information services 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 information services companies are there based in the United Kingdom?

RevenueBase identified 1,006 information services 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?

Caci LTD, headquartered in London, tops this list with the largest team on record.

Which city has the most information services companies?

London leads with 417 headquartered companies, followed by Manchester (25) and Bristol (15).

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 4,327 verified decision-maker contacts tracked across these 1,006 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 20, 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.