Company lists · Data refreshed September 2026

Top 25 Customer interaction management platforms based in the United Kingdom

RevenueBase identified 246 customer interaction management platforms headquartered in the United Kingdom as of September 2026 and tracks 11,746 professional contacts across them, including 4,241 with verified work emails. London is the largest hub.

This list covers customer interaction management 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, 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
246Companies
11,746Contacts tracked
4,241Verified emails
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The 25 largest customer interaction management platforms based in the United Kingdom

Ranked by team size
Top 25 of 246 customer interaction management platforms based in the 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 interaction management platforms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0003,309 contacts →

Partial evidence

“Infobip is a global leader in omnichannel engagement powering a broad range of messaging channels, tools and solutions for advanced customer engagement, authentication and…”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,0001,991 contacts →

Strong evidence

“We believe customers and employees should be looked after, and every interaction is an opportunity for a conversation and to learn more about them.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceMotherwell, United KingdomHQ checked Sep 28, 20261,001-5,0001,244 contacts →

Indirect evidence

“Ascensos is now Firstsource.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceWrexham, United KingdomHQ checked Sep 28, 20261,001-5,000530 contacts →

Partial evidence

“Moneypenny is the leading customer conversations partner to businesses across the UK and US, blending exceptional people with proprietary AI technology to deliver trusted caller…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceKingston Upon Hull, United KingdomHQ checked Sep 28, 20261,001-5,000490 contacts →

Partial evidence

“Give your customers a voice with ResQ.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 20261,001-5,000433 contacts →

Indirect evidence

“We've moved!”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceBracknell, United KingdomHQ checked Sep 28, 2026501-1,000428 contacts →

Partial evidence

“Content Guru is a leading global cloud Customer Experience (CX) technology provider and the only ‘challenger’ named in the 2025 Gartner® CCaaS Magic Quadrant™’.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200145 contacts →

Indirect evidence

“Attio is the AI CRM for the next era of companies.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026201-500140 contacts →

Indirect evidence

“Echoing our clients in every conversation.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceBristol, United KingdomHQ checked Sep 28, 202651-200131 contacts →

Partial 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 28, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200127 contacts →

Indirect evidence

“Natterbox is an AI-powered contact center solution that's natively integrated to Salesforce.”

Source: RevenueBase Database · checked Sep 28, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 28, 202651-20099 contacts →

Strong evidence

“Marketers spend billions on attracting customers and yet more than 70% of first time interactions with a brand are also the last.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceCheltenham, United KingdomHQ checked Sep 28, 202651-20085 contacts →

Partial evidence

“Signal, a Broadridge Company, is a UK customer communications specialist trusted by leading enterprises in the banking, insurance and social sectors to accelerate digital…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceBury, United KingdomHQ checked Sep 28, 2026201-50083 contacts →

Partial evidence

“We are FM Outsource, a modern customer service outsourcer.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20078 contacts →

Partial evidence

“Pobuca, the Customer Experience (CX) company.”

Source: RevenueBase Database · checked Sep 28, 2026
16Strong evidenceWatford, United KingdomHQ checked Sep 28, 202651-20074 contacts →

Strong evidence

“Engagely.ai is a leading No code total CX Platform with out-of-the-box CX automation solutions that helps enterprises automate customer support and engagement & thereby creates…”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceWolverhampton, United KingdomHQ checked Sep 28, 202651-20067 contacts →

Partial evidence

“We are a software house focused around delivering products and solutions to enable smarter customer engagements that are meaningful, effortless, insightful and consistent across…”

Source: RevenueBase Database · checked Sep 28, 2026
18Strong evidenceReading, United KingdomHQ checked Sep 28, 202651-20064 contacts →

Strong 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 28, 2026
19Strong evidenceManchester, United KingdomHQ checked Sep 28, 202651-20061 contacts →

Strong evidence

“MaxContact is the AI-powered customer engagement platform that transforms customer conversations into measurable business outcomes.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceEasingwold, United KingdomHQ checked Sep 28, 202651-20049 contacts →

Partial evidence

“TeleWare design software to help businesses communicate better with their customers and employees by routing communications more effectively.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceSeaham, United KingdomHQ checked Sep 28, 202651-20045 contacts →

Partial evidence

“CustomerKNECT aim to be the number one choice for innovative customer communications.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceAylesbury, United KingdomHQ checked Sep 28, 202611-5042 contacts →

Indirect evidence

“Sytel Limited develops and supplies Softdial Contact Center (SCC) multimedia, multichannel, fully blended cloud contact center solutions, for quick and easy deployment by partners…”

Source: RevenueBase Database · checked Sep 28, 2026
23Partial evidenceRayleigh, United KingdomHQ checked Sep 28, 202611-5037 contacts →

Partial evidence

“SentiSum is the closed-loop intelligence layer that turns customer voice into measurable cost reduction across the customer-facing P&L.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceManchester, United KingdomHQ checked Sep 28, 202611-5037 contacts →

Partial evidence

“One platform.”

Source: RevenueBase Database · checked Sep 28, 2026
25Strong evidenceLondon, United KingdomHQ checked Sep 28, 202611-5035 contacts →

Strong evidence

“The iovox AI platform unlocks the potential of every customer conversation, from calls and texts to chats.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 246 customer interaction management platforms based in the United Kingdom

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Customer interaction management platforms based in the United Kingdom at a glance

As of Sep 28, 2026
36.1%Verified-email coverage
47.7Average contacts per company
11-50Median size (employees)
44.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
100
11-50
90
51-200
33
201-500
9
501-1,000
2
1,001-5,000
11

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 246 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 interaction management platforms, 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 interaction management platforms”. 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 interaction management platforms), 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 interaction management 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 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, 4,241 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.

Customer interaction management platforms by metro

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 interaction management platforms, 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 interaction management platforms are there based in the United Kingdom?

RevenueBase identified 246 customer interaction management 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?

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

Which city has the most customer interaction management platforms?

London leads with 109 headquartered companies, followed by Manchester (9) and Bracknell (3).

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 4,241 verified decision-maker contacts tracked across these 246 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.