Company lists · Data refreshed September 2026

Top 25 Customer data platform integration companies based in London, United Kingdom

Name: Customer data platform integration companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 61 companies tracked

RevenueBase identified 61 customer data platform integration companies headquartered in London, United Kingdom as of September 2026 and tracks 1,853 professional contacts across them, including 904 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers customer data platform integration companies headquartered in London, 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 28, 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 28, 2026 86% judged on-target in blind review

61Companies

1,853Contacts tracked

904Verified emails

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The 25 largest customer data platform integration companies based in London, United Kingdom

Ranked by team size

Top 25 of 61 customer data platform integration companies based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to customer data platform integration 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	MAPP	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	373 contacts →
	Strong evidence “Mapp helps marketers build personalized customer experiences through our SaaS platform, Mapp Marketing Cloud.” Source: RevenueBase Database · checked Sep 28, 2026
2	Eagle EYE	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	241 contacts →
	Indirect evidence “Eagle Eye is on a mission to power the personalized marketing revolution globally.” Source: RevenueBase Database · checked Sep 28, 2026
3	Reward	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	236 contacts →
	Partial evidence “Founded in 2001, Reward is an industry leader transforming the world of Customer Engagement and Commerce Media.” Source: RevenueBase Database · checked Sep 28, 2026
4	Acteol	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	85 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
5	Pobuca	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	78 contacts →
	Partial evidence “Pobuca, the Customer Experience (CX) company.” Source: RevenueBase Database · checked Sep 28, 2026
6	Infosum	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Strong evidence “InfoSum is the world’s leading data collaboration platform and the only secure data clean room, empowering companies to deliver better customer experiences while prioritizing…” Source: RevenueBase Database · checked Sep 28, 2026
7	Silverbullet	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	57 contacts →
	Strong evidence “Silverbullet is a leading Data-Driven Customer Experience (CX) Company that empowers the world's leading brands to better understand the data they collect, store, and activate to…” Source: RevenueBase Database · checked Sep 28, 2026
8	PLINC	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	55 contacts →
	Partial evidence “Plinc helps brands turn first-party data into competitive advantage.” Source: RevenueBase Database · checked Sep 28, 2026
9	Countly	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	41 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 28, 2026
10	Rapier AI Analytics	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	39 contacts →
	Strong evidence “We are Rapier, a leading AI customer growth platform with a strong focus on transforming first-party customer data into business growth.” Source: RevenueBase Database · checked Sep 28, 2026
11	Leadscale Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	34 contacts →
	Partial evidence “LeadScale provides the greatest leverage to any business – the ability to use personal data to identify more opportunities earlier, driving revenue at scale.” Source: RevenueBase Database · checked Sep 28, 2026
12	Abacus	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	34 contacts →
	Strong evidence “Abacus is a Software as a Service (SaaS) provider with unique proprietary Customer Data Platform (CDP) and Digital eXperience Platform (DXP) offerings.” Source: RevenueBase Database · checked Sep 28, 2026
13	Acxiom UK	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	34 contacts →
	Partial evidence “Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.” Source: RevenueBase Database · checked Sep 28, 2026
14	kleene.ai	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “Kleene.ai is a data infrastructure startup on a mission to make business data simple, trustworthy and actionable.” Source: RevenueBase Database · checked Sep 28, 2026
15	IMG Intermedia Global	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “We are an award-winning marketing agency helping ambitious businesses unlock growth by connecting data, technology, processes and campaigns into a single, effective marketing…” Source: RevenueBase Database · checked Sep 28, 2026
16	PM Dragonfly	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “With our expert consultants, we unlock the power of your data and transform your Marketing capabilities, building sustainable value in your organisation in a privacy respectful…” Source: RevenueBase Database · checked Sep 28, 2026
17	Zzgtech	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	18 contacts →
	Partial evidence “ZZGTech builds secure and scalable infrastructure for modern marketing and customer communication.” Source: RevenueBase Database · checked Sep 28, 2026
18	Dotdigital Group PLC	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	18 contacts →
	Indirect evidence “Dotdigital Group plc is a leading provider of cross-channel marketing automation technology to marketing professionals.” Source: RevenueBase Database · checked Sep 28, 2026
19	Audiencerate	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “Audiencerate is the Marketing Data Platform that helps agencies, brands, and public organizations turn fragmented data into precise audiences and activate them across every…” Source: RevenueBase Database · checked Sep 28, 2026
20	Sweet Analytics	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Sweet Analytics, at the centre of all your data.” Source: RevenueBase Database · checked Sep 28, 2026
21	IKUE	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	13 contacts →
	Strong evidence “The world’s first customer data platform designed by telcos for telcos.” Source: RevenueBase Database · checked Sep 28, 2026
22	Audiences	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “AUDIENCES is the pioneer of in-cloud data activation.” Source: RevenueBase Database · checked Sep 28, 2026
23	Affino	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Affino Unified Business Platform The Unified Business Platform for media, publishing, events, membership and professional services organisations.” Source: RevenueBase Database · checked Sep 28, 2026
24	RAIS	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1-10	11 contacts →
	Partial evidence “We help D2C brands grow the value of their customers faster by providing software, intelligence and expertise.” Source: RevenueBase Database · checked Sep 28, 2026
25	Evorra	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “Evorra seeks to make every marketer in the world, a responsible, data-driven marketer.” Source: RevenueBase Database · checked Sep 28, 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: customer data platform integration 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 customer data platform integration companies.
Partial evidence: Its own public description names part of customer data platform integration companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer data platform integration 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 61 customer data platform integration companies based in London, United Kingdom

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Customer data platform integration companies based in London, United Kingdom at a glance

As of Sep 28, 2026

48.8%Verified-email coverage

30.4Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 61 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 customer data platform integration 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 London, United Kingdom whose own description of what they do matches “customer data platform integration 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 customer data platform integration 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 customer data platform integration companies, and records with no verified work email. Companies headquartered outside London 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, 904 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 28, 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.

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 customer data platform integration 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 customer data platform integration companies are there based in London, United Kingdom?

RevenueBase identified 61 customer data platform integration companies headquartered in London, 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?

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

Which city in the United Kingdom has the most customer data platform integration companies?

London leads the United Kingdom with 61 headquartered companies, followed by Nottingham (3) and Kington (2).

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 904 verified decision-maker contacts tracked across these 61 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 28, 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.