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Company lists · Data refreshed September 2026

Top 25 First-party data platforms based in the United Kingdom

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 170 companies tracked

RevenueBase identified 170 first-party data platforms headquartered in the United Kingdom as of September 2026 and tracks 6,276 professional contacts across them, including 2,731 with verified work emails and 1,220 with mobile numbers. London is the largest hub.

This list covers first-party data platforms 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review
170Companies
6,276Contacts tracked
2,731Verified emails
1,220Mobile numbers
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The 25 largest first-party data platforms based in the United Kingdom

Ranked by team size
Top 25 of 170 first-party data platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names first-party data platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
BRAZEStrong evidence
London, United Kingdom1,001-5,0002,133

“Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…”

Source: company website · checked Sep 2, 2026
2
Mobius Knowledge ServicesPartial evidence
London, United Kingdom501-1,0001,434

“Mobius transforms the way data works for you.”

Source: company website · checked Sep 2, 2026
3
FunnelPartial evidence
London, United Kingdom201-500391

“The global marketing intelligence leader, Funnel helps thousands of marketers at brands like Havas Media, Home Depot and Publicis to choreograph their data and unlock insights…”

Source: company website · checked Sep 2, 2026
4
Act-On SoftwarePartial evidence
Reading, United Kingdom201-500209

“Act-On Software provides the innovative marketing automation platform for marketers who think big and act boldly.”

Source: company website · checked Sep 2, 2026
5
OUTRAPartial evidence
London, United Kingdomn/a188

“Outra provides the audience data that household names like Sky, Shell, Zoopla and AXA rely on to power their campaigns.”

Source: company website · checked Sep 2, 2026
6
SagacityPartial evidence
London, United Kingdom51-200148

“Sagacity are the data intelligence people.”

Source: company website · checked Sep 2, 2026
7
OmetriaStrong evidence
London, United Kingdom51-200135

“Ometria is the first and only customer data experience platform (CDXP) built for retail brands.”

Source: company website · checked Sep 2, 2026
8
Spotler UKIndirect evidence
Guildford, United Kingdom51-20084

“We are Spotler!”

Source: company website · checked Sep 2, 2026
9
ExacttargetIndirect evidence
London, United Kingdom1,001-5,00083

“ExactTarget is now the Salesforce Marketing Cloud - Visit them here: http://sforce.co/2nnCQU7 The Salesforce Marketing Cloud is the world’s most powerful digital marketing 1:1…”

Source: company website · checked Sep 2, 2026
10
HTK An ITA Group CompanyPartial evidence
Ipswich, United Kingdom11-5075

“HTK is a leading cloud-based (SaaS) software-as-a-service provider, offering innovative data insights, machine learning and loyalty marketing solutions.”

Source: company website · checked Sep 2, 2026
11
AudienseStrong evidence
London, United Kingdom51-20072

“The Audiense platform combines rich social data sources with the world’s leading cognitive and machine learning enabling you to understand the audiences that matter to your…”

Source: company website · checked Sep 2, 2026
12
Audigent, A Part Of ExperianStrong evidence
London Britain, United Kingdom11-5070

“Audigent is the leading data activation, curation and identity platform.”

Source: company website · checked Sep 2, 2026
13
NetmeraStrong evidence
United Kingdom51-20057

“Netmera unifies customer data and AI-powered omnichannel engagement in a single platform.”

Source: company website · checked Sep 2, 2026
14
Good GrowthPartial evidence
Birmingham, United Kingdom51-20057

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

Source: company website · checked Sep 2, 2026
15
PLINCStrong evidence
London, United Kingdom51-20056

“Plinc helps brands turn first-party data into competitive advantage.”

Source: company website · checked Sep 2, 2026
16
ScanmarqedPartial evidence
London, United Kingdom51-20043

“Dare to do more with your data!”

Source: company website · checked Sep 2, 2026
17
HurreePartial evidence
Belfast, United Kingdom11-5043

“The smarter, simpler way to analyze your data.”

Source: company website · checked Sep 2, 2026
18
CountlyStrong evidence
London, United Kingdom51-20040

“Countly is a first-party digital analytics and customer engagement platform that gives organizations complete ownership of their data and product intelligence - across every…”

Source: company website · checked Sep 2, 2026
19
Rapier AI AnalyticsStrong evidence
London, United Kingdom11-5039

“We are Rapier, a leading AI customer growth platform with a strong focus on transforming first-party customer data into business growth.”

Source: company website · checked Sep 2, 2026
20
Leadscale GroupPartial evidence
London, United Kingdom11-5035

“LeadScale provides the greatest leverage to any business – the ability to use personal data to identify more opportunities earlier, driving revenue at scale.”

Source: company website · checked Sep 2, 2026
21
OffernetPartial evidence
London, United Kingdom51-20033

“Offernet is a data-driven, AI-powered “martech” company that helps digital marketers with the most cutting edge technology and insights to advertising more effectively.”

Source: company website · checked Sep 2, 2026
22
R-CubedIndirect evidence
Brighton, United Kingdom11-5024

“We hate it when businesses can’t nd the answers they need to drive better marketing results.”

Source: company website · checked Sep 2, 2026
23
For-SightPartial evidence
Edinburgh, United Kingdom11-5023

“For-Sight is a Hotel CRM & Marketing Platform designed to help you gain a clear picture and a better understanding of who your guests are and what they really want.”

Source: company website · checked Sep 2, 2026
24
DataxuPartial evidence
London, United Kingdom1,001-5,00023

“In 2009, dataxu® was founded on the premise that data science could help make marketing better.”

Source: company website · checked Sep 2, 2026
25
Measure ProtocolPartial evidence
London, United Kingdom11-5022

“Measure Protocol is a behavioral data company built on real consumer behavior.”

Source: company website · checked Sep 2, 2026

Showing 25 of 170 first-party data platforms based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,731 reachable decision-makers.

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See all 170 companies

First-party data platforms based in the United Kingdom at a glance

As of Sep 2, 2026
11-50Median size (employees)
LondonLargest hub · 99 HQs
1,220Contacts with mobile numbers
Sep 2, 2026Data refreshed

Companies by employee count

1-10
82
11-50
55
51-200
23
201-500
5
501-1,000
1
1,001-5,000
3

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 first-party data platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “first-party data platforms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among first-party data platforms, 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 an evidence 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, 2,731 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 2, 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.

First-party data platforms by metro

  • First-party data platforms in London99

Frequently asked

How many first-party data platforms are there based in the United Kingdom?

RevenueBase identified 170 first-party data platforms 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?

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

Which city has the most first-party data platforms?

London leads with 99 headquartered companies, followed by Manchester (6) and Edinburgh (4).

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 2,731 verified decision-maker contacts tracked across these 170 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 2, 2026.

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Related lists

Browse: Companies home · All United Kingdom lists · All First-party data platforms lists · New 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.

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