Company lists · Data refreshed September 2026

Top 25 Customer engagement software companies based in the United Kingdom

Name: Customer engagement software 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 1, 2026 159 companies tracked

RevenueBase identified 159 customer engagement software companies headquartered in the United Kingdom as of September 2026 and tracks 15,467 professional contacts across them, including 3,940 with verified work emails and 2,058 with mobile numbers. London is the largest hub.

This list covers customer engagement software 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

159Companies

15,467Contacts tracked

3,940Verified emails

2,058Mobile numbers

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The 25 largest customer engagement software companies based in the United Kingdom

Ranked by team size

Top 25 of 159 customer engagement software companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to customer engagement software 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	24 7.ai	Strong evidence	London, United Kingdom	10001+	8,414 contacts →
	Strong evidence “24]7.ai™ customer engagement solutions use conversational artificial intelligence to understand customer intent, enabling companies to create personalized, predictive, and…” Source: RevenueBase Database · checked Sep 1, 2026
2	BRAZE	Strong evidence	London, United Kingdom	1,001-5,000	2,133 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 1, 2026
3	TLC Worldwide	Strong evidence	London, United Kingdom	201-500	986 contacts →
	Strong evidence “TLC Worldwide is a global leader in customer engagement, loyalty, and reward solutions.” Source: RevenueBase Database · checked Sep 1, 2026
4	Iterable	Strong evidence	London, United Kingdom	501-1,000	766 contacts →
	Strong evidence “Iterable is the AI customer engagement platform built for enterprise scale, loved by teams, and trusted by global brands like Priceline, Fabletics, Blockchain, and Box.” Source: RevenueBase Database · checked Sep 1, 2026
5	On24	Indirect evidence	London, United Kingdom	501-1,000	623 contacts →
	Indirect evidence “ON24, a Cvent company, is on a mission to help businesses bring their go-to-market strategy into the AI era and drive cost-effective revenue growth.” Source: RevenueBase Database · checked Sep 1, 2026
6	Jade Software Corporation	Strong evidence	United Kingdom	201-500	356 contacts →
	Strong evidence “We combine the power of People, Data, and Software to deliver unrivalled customer experiences.” Source: RevenueBase Database · checked Sep 1, 2026
7	Pelatro	Strong evidence	London, United Kingdom	201-500	343 contacts →
	Strong evidence “Pelatro is a leading customer engagement solution provider for Telecommunication.” Source: RevenueBase Database · checked Sep 1, 2026
8	Route 101 LTD	Strong evidence	Bristol, United Kingdom	51-200	135 contacts →
	Strong evidence “Route 101 offers award-winning customer engagement solutions that help you reduce operational costs, enhance efficiency, and deliver a next-generation customer experience (CX).” Source: RevenueBase Database · checked Sep 1, 2026
9	Kognitiv Corporation	Indirect evidence	London, United Kingdom	201-500	115 contacts →
	Indirect evidence “Kognitiv, now part of Capillary Technologies, redefines loyalty by helping brands securely and efficiently activate their data to engage new audiences and deepen relationships…” Source: RevenueBase Database · checked Sep 1, 2026
10	Goodays	Partial evidence	London, United Kingdom	51-200	92 contacts →
	Partial evidence “Goodays (formerly Critizr) is the most comprehensive customer experience platform on the market, now enhanced with generative AI.” Source: RevenueBase Database · checked Sep 1, 2026
11	Spotler UK	Indirect evidence	Guildford, United Kingdom	51-200	84 contacts →
	Indirect evidence “We are Spotler!” Source: RevenueBase Database · checked Sep 1, 2026
12	Exacttarget	Indirect evidence	London, United Kingdom	1,001-5,000	83 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 1, 2026
13	HTK An ITA Group Company	Partial evidence	Ipswich, United Kingdom	11-50	75 contacts →
	Partial evidence “HTK is a leading cloud-based (SaaS) software-as-a-service provider, offering innovative data insights, machine learning and loyalty marketing solutions.” Source: RevenueBase Database · checked Sep 1, 2026
14	Workbooks CRM	Partial evidence	Reading, United Kingdom	51-200	63 contacts →
	Partial evidence “Workbooks is a CRM SaaS platform used by growing companies to run their business and engage effectively with their customers.” Source: RevenueBase Database · checked Sep 1, 2026
15	Netmera	Strong evidence	United Kingdom	51-200	57 contacts →
	Strong evidence “Netmera unifies customer data and AI-powered omnichannel engagement in a single platform.” Source: RevenueBase Database · checked Sep 1, 2026
16	Passle	Indirect evidence	Oxford, United Kingdom	11-50	54 contacts →
	Indirect evidence “Passle powers growth at the world's leading professional services firms, including Ropes & Gray, Linklaters, Quinn Emanuel and many more.” Source: RevenueBase Database · checked Sep 1, 2026
17	Boxtec	Strong evidence	Thame, United Kingdom	51-200	52 contacts →
	Strong evidence “BOXTEC is where innovative, market-leading customer engagement technology is born, nurtured, and equipped to turn your unique business challenges into opportunities.” Source: RevenueBase Database · checked Sep 1, 2026
18	Engage HUB	Partial evidence	London, United Kingdom	51-200	48 contacts →
	Partial evidence “Every customer is unique.” Source: RevenueBase Database · checked Sep 1, 2026
19	Kaizen Loyalty	Indirect evidence	London, United Kingdom	11-50	45 contacts →
	Indirect evidence “Kai"(change) and "Zen"(good), translating to "change for better" or "continuous improvement." At Kaizen Technology, our name is more than just a brand name, it's a reflection of…” Source: RevenueBase Database · checked Sep 1, 2026
20	Boomerang Digital	Indirect evidence	Hull, United Kingdom	11-50	38 contacts →
	Indirect evidence “We are Boomerang Digital, the home of some of the UK’s most innovative tech brands.” Source: RevenueBase Database · checked Sep 1, 2026
21	Visitor Chat	Indirect evidence	United Kingdom	11-50	38 contacts →
	Indirect evidence “Visitor Chat helps businesses turn website visitors into qualified leads through real-time conversations.” Source: RevenueBase Database · checked Sep 1, 2026
22	Anana LTD	Partial evidence	United Kingdom	51-200	27 contacts →
	Partial evidence “Anana delivers advanced customer experience technology and direction.” Source: RevenueBase Database · checked Sep 1, 2026
23	The Retention People	Strong evidence	Bath, United Kingdom	51-200	25 contacts →
	Strong evidence “TRP are the leading providers of customer experience management software and solutions to the leisure industry.” Source: RevenueBase Database · checked Sep 1, 2026
24	Odicci	Indirect evidence	London, United Kingdom	11-50	16 contacts →
	Indirect evidence “Odicci is making it easy for e-Commerce brands to create engaging, interactive marketing experiences that collect First and Zero-Party Data to drive conversion.” Source: RevenueBase Database · checked Sep 1, 2026
25	Prospect Path	Partial evidence	Newcastle Upon Tyne, United Kingdom	11-50	15 contacts →
	Partial evidence “Looking for Software Buyers?” Source: RevenueBase Database · checked Sep 1, 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 engagement software 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 engagement software companies.
Partial evidence: Its own public description names part of customer engagement software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer engagement software 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 159 customer engagement software companies based in the United Kingdom

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Customer engagement software companies based in the United Kingdom at a glance

As of Sep 1, 2026

25.5%Verified-email coverage

13.3%Mobile-number coverage

97.3Average contacts per company

1-10Median size (employees)

47.8%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 engagement software 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 “customer engagement software 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 engagement software 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 engagement software 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, 3,940 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 1, 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.

Customer engagement software companies by metro

Customer engagement software companies in London76

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 engagement software 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 engagement software companies are there based in the United Kingdom?

RevenueBase identified 159 customer engagement software 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?

24 7.ai, headquartered in London, tops this list with the largest team on record.

Which city has the most customer engagement software companies?

London leads with 76 headquartered companies, followed by Manchester (5) and Cambridge (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 3,940 verified decision-maker contacts tracked across these 159 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 1, 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.