Company lists · Data refreshed September 2026

Top 25 Subsidiary data companies based in the United Kingdom

RevenueBase identified 1,062 company matches for subsidiary data companies associated with the United Kingdom as of September 2026 and tracks 33,258 professional contacts across them, including 12,907 with verified work emails. London is the largest hub.

This list covers company matches for subsidiary data companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 14, 2026 How this list was built
1,062Companies
33,258Contacts tracked
12,907Verified emails
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The 25 largest subsidiary data companies based in the United Kingdom

Ranked by team size
Top 25 of 1,062 company matches for subsidiary data companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 14, 202610001+15,564 contacts →

Exact match

“Kantar is the world’s leading marketing data and analytics business.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 14, 20261,001-5,0001,663 contacts →

Exact match

“CACI offers an unrivalled range of data, marketing and IT solutions to a wide range of industries across both the public and private sectors.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
RevenueBasePublisher of this directory
Not ratedBoston, MA, United Statesn/aTry free

Not rated

“RevenueBase is a B2B contact data platform. This directory is built from its company graph.”

3Exact matchLondon, United KingdomHQ recorded Sep 14, 20261,001-5,0001,100 contacts →

Exact match

“Smartstream unlocks trusted, intelligent data insights – clearly, consistently, and without compromise.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 14, 2026501-1,000702 contacts →

Exact match

“We provide high performing intelligence that answers critical business questions for leading companies around the world.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchNewry, United KingdomHQ recorded Sep 14, 20261,001-5,000601 contacts →

Exact match

“FD is a group of data-driven businesses that unlock the value of insight, hindsight and foresight to drive organisations forward.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchManchester, United KingdomHQ recorded Sep 14, 2026501-1,000353 contacts →

Exact match

“A dedicated team of outsource experts committed to delivering growth for our partners through the power of communication A marketing operation that can provide an integrated data…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500230 contacts →

Exact match

“Thorogood is an independent consultancy that provides end-to-end data, AI and analytics solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200219 contacts →

Exact match

“As a global leader in service management, we help businesses transform their operations with data-driven insights, scalable digital solutions, and measurable results.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 14, 2026201-500216 contacts →

Exact match

“Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200197 contacts →

Exact match

“The Information Lab is on a mission.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200186 contacts →

Exact match

“Elait exists to transform unwieldy data into a competitive advantage.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchSunbury-on-thames, United KingdomHQ recorded Sep 14, 202651-200152 contacts →

Exact match

“For over 25 years, Celebrus has set the gold standard globally for improving marketing effectiveness and preventing fraud across all industries.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200150 contacts →

Exact match

“Sagacity are the data intelligence people.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200150 contacts →

Exact match

“Fornova empowers the global travel and hospitality industry to optimize distribution, generate demand and maximize revenue by delivering best-in-class, data-driven Business…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchWoolwich, United KingdomHQ recorded Sep 14, 2026n/a129 contacts →

Exact match

“Founded in 2007, we are independent, knowledgeable and reliable.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200119 contacts →

Exact match

“Elastacloud has been acquired by Acora.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchEdinburgh, United KingdomHQ recorded Sep 14, 202651-200118 contacts →

Exact match

“The data & AI consultancy delivering services across data foundations, services and products.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchSalford, United KingdomHQ recorded Sep 14, 202651-200118 contacts →

Exact match

“We are Naimuri, a software development house, based in Manchester, specialising in data intelligence solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchYork, United KingdomHQ recorded Sep 14, 202651-200116 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchBicester, United KingdomHQ recorded Sep 14, 202651-200113 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchHorsham, United KingdomHQ recorded Sep 14, 202651-20099 contacts →

Exact match

“Envitia is an IT services and consulting company, specialising in complex data challenges.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20098 contacts →

Exact match

“The authoritative source for global data intelligence Neudata provides actionable, unbiased market intelligence to buyers and sellers of market and alternative data.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchLeeds, United KingdomHQ recorded Sep 14, 202651-20095 contacts →

Exact match

“Oakland is a consultancy focused exclusively on liberating and activating data.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20085 contacts →

Exact match

“We're an award-winning CRM agency who specialise in knitting together complex and disparate data to create a powerful single customer view that can deliver significant returns to…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20085 contacts →

Exact match

“Make the most of your data with enterprise-ready software that helps you extract, enrich, and discover your company’s most valuable knowledge.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 25 of 1,062 subsidiary data companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 12,907 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsidiary data companies based in the United Kingdom at a glance

As of Sep 14, 2026
38.8%Verified-email coverage
31.3Average contacts per company
1-10Median size (employees)
43.5%Largest-city concentration · London
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
706
11-50
235
51-200
79
201-500
20
501-1,000
5
1,001-5,000
11
5,001-10,000
1
10001+
3

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 1,062 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “subsidiary data companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 12,907 professional contacts with verified work emails across the full matched dataset. 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 14, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “subsidiary data companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsidiary data companies are there based in the United Kingdom?

RevenueBase identified 1,062 company matches for subsidiary data companies associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kantar tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most subsidiary data companies?

London leads with 462 company records, followed by Manchester (33) and Leeds (22).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,907 professional contacts with verified work emails tracked across these 1,062 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 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 SmartSearch, 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.