Company lists · Data refreshed September 2026

Top 25 B2B data services based in the United Kingdom

RevenueBase identified 849 company matches for B2B data services associated with the United Kingdom as of September 2026 and tracks 27,125 professional contacts across them, including 9,579 with verified work emails. London is the largest hub.

This list covers company matches for B2B data services 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 21, 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 21, 2026 How this list was built
849Companies
27,125Contacts tracked
9,579Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest B2B data services based in the United Kingdom

Ranked by team size
Top 25 of 849 company matches for B2B data services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 202610001+15,564 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-500530 contacts →

Exact match

“Cognism provides accurate, compliant-first B2B data and sales intelligence for teams growing across Europe and beyond.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchManchester, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6Exact matchBath, United KingdomHQ recorded Sep 21, 202651-200221 contacts →

Exact match

“Edit are future-focused data and technology experts.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8Exact matchLeicester, United KingdomHQ recorded Sep 21, 2026201-500210 contacts →

Exact match

“Welcome to Go Inspire - Your Marketing Performance Partner!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-200197 contacts →

Exact match

“The Information Lab is on a mission.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchChandler's Ford, United KingdomHQ recorded Sep 21, 2026201-500186 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchBracknell, United KingdomHQ recorded Sep 21, 202651-200162 contacts →

Exact match

“Supercharge Your Success with InFynd!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchSunbury-on-thames, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
13Exact matchWoolwich, United KingdomHQ recorded Sep 21, 2026n/a129 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchStaines-upon-thames, United KingdomHQ recorded Sep 21, 2026201-500125 contacts →

Exact match

“Technology consultancy providing expertise to complex IT programs.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchBirmingham, United KingdomHQ recorded Sep 21, 202651-200119 contacts →

Exact match

“GCL, with its unique, non-scripted approach to telemarketing and related marketing services, has for over 30 years established an enviable reputation for providing winning lead…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchYork, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
17Exact matchExeter, United KingdomHQ recorded Sep 21, 202651-200116 contacts →

Exact match

“Since 2016, Air Marketing has been the trusted outsourced sales and lead generation agency in the UK for ambitious B2B businesses.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchHorsham, United KingdomHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-50088 contacts →

Exact match

“The B2B Customer Acquisition Specialists Internal Results specialize in generating leads, promoting content, and driving brand awareness for B2B organizations worldwide through…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 21, 2026201-50079 contacts →

Exact match

“With 26+ years of experience and more than 500+ professionals, Cognition empowers growth for B2B organizations by delivering reliable data, intelligence, and actionable insights…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 21, 202651-20065 contacts →

Exact match

“Seriös Group are experts in data solutions, helping businesses to take control of their data, delivering rapid value without compromise.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 21, 202611-5062 contacts →

Exact match

“Uptitude is a Data and Business Intelligence Consultancy that provides customised solutions to complex data problems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20061 contacts →

Exact match

“Focusing on data and technology, we predict your customers’ future needs and improve engagement.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchExeter, United KingdomHQ recorded Sep 21, 202651-20056 contacts →

Exact match

“Good Growth is a data and technology company trusted by global brands to grow profitability and market share of digital channels.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Sep 21, 202651-20052 contacts →

Exact match

“Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 849 B2B data services based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 9,579 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

B2B data services based in the United Kingdom at a glance

As of Sep 21, 2026
35.3%Verified-email coverage
31.9Average contacts per company
1-10Median size (employees)
40.2%Largest-city concentration · London
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
530
11-50
227
51-200
58
201-500
19
501-1,000
8
1,001-5,000
3
10001+
1

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 849 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 “B2B data services” 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 9,579 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 21, 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 “B2B data services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many B2B data services are there based in the United Kingdom?

RevenueBase identified 849 company matches for B2B data services 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 B2B data services?

London leads with 341 company records, followed by Manchester (24) and Leeds (14).

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 9,579 professional contacts with verified work emails tracked across these 849 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 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 849 B2B data services based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

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.