Company lists · Data refreshed September 2026

Top 25 Omnichannel communication platforms based in the United Kingdom

RevenueBase identified 242 omnichannel communication platforms headquartered in the United Kingdom as of September 2026 and tracks 11,334 professional contacts across them, including 4,270 with verified work emails and 531 with mobile numbers. London is the largest hub.

This list covers omnichannel communication 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 5, 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 5, 2026 86% judged on-target in blind review
242Companies
11,334Contacts tracked
4,270Verified emails
531Mobile numbers
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The 25 largest omnichannel communication platforms based in the United Kingdom

Ranked by team size
Top 25 of 242 omnichannel communication platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to omnichannel communication 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 5, 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 5, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 5, 20261,001-5,0001,991 contacts →

Indirect 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 5, 2026
3Indirect evidenceWrexham, United KingdomHQ checked Sep 5, 20261,001-5,000530 contacts →

Indirect 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 5, 2026
4Indirect evidenceKingston Upon Hull, United KingdomHQ checked Sep 5, 20261,001-5,000490 contacts →

Indirect evidence

“Give your customers a voice with ResQ.”

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

Indirect evidence

“We've moved!”

Source: RevenueBase Database · checked Sep 5, 2026
6Indirect evidenceBracknell, United KingdomHQ checked Sep 5, 2026501-1,000428 contacts →

Indirect 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 5, 2026
7Indirect evidenceLondon, United KingdomHQ checked Sep 5, 2026201-500222 contacts →

Indirect evidence

“To us, the ability to communicate effectively is not a commodity and we are proud to possess the right balance of technology and services.”

Source: RevenueBase Database · checked Sep 5, 2026
8Indirect evidenceHull, United KingdomHQ checked Sep 5, 2026501-1,000205 contacts →

Indirect evidence

“Established since 1998 Clearanswer is an expert provider of contact centre solutions.”

Source: RevenueBase Database · checked Sep 5, 2026
9Indirect evidenceChorley, United KingdomHQ checked Sep 5, 202651-200148 contacts →

Indirect evidence

“Great technology matters, but it’s great people who make it work.”

Source: RevenueBase Database · checked Sep 5, 2026
10Indirect evidenceNewcastle Upon Tyne, United KingdomHQ checked Sep 5, 2026201-500140 contacts →

Indirect evidence

“Echoing our clients in every conversation.”

Source: RevenueBase Database · checked Sep 5, 2026
11Indirect evidenceBristol, United KingdomHQ checked Sep 5, 202651-200131 contacts →

Indirect 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 5, 2026
12Partial evidenceHampton-in-arden, United KingdomHQ checked Sep 5, 202651-200111 contacts →

Partial evidence

“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.”

Source: RevenueBase Database · checked Sep 5, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-20099 contacts →

Indirect 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 5, 2026
14Partial evidenceLondon, United KingdomHQ checked Sep 5, 202611-5096 contacts →

Partial evidence

“We’re service communication experts – using a mix of science, creativity and service know-how to improve how you talk with your customers through all channels and media, from…”

Source: RevenueBase Database · checked Sep 5, 2026
15Partial evidenceCheltenham, United KingdomHQ checked Sep 5, 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 5, 2026
16Indirect evidenceBury, United KingdomHQ checked Sep 5, 2026201-50083 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 5, 2026
17Indirect evidenceWolverhampton, United KingdomHQ checked Sep 5, 202651-20067 contacts →

Indirect 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 5, 2026
18Partial evidenceGuildford, United KingdomHQ checked Sep 5, 202651-20065 contacts →

Partial evidence

“A leading Systems Integrator and Technology Innovator trusted by world class brands for over 40 years, Britannic designs, develops and delivers business communications, sovereign…”

Source: RevenueBase Database · checked Sep 5, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 5, 202651-20063 contacts →

Indirect evidence

“Business Systems is a trusted transformation partner with over 35 years of experience helping CX teams and contact centres become smarter, faster and more compliant.”

Source: RevenueBase Database · checked Sep 5, 2026
20Partial evidenceGuildford, United KingdomHQ checked Sep 5, 202651-20062 contacts →

Partial evidence

“Nebula is a leading SaaS provider of workplace communications software, delivering powerful, secure, and adaptable solutions and applications for voice, messaging, customer…”

Source: RevenueBase Database · checked Sep 5, 2026
21Indirect evidenceRedditch, United KingdomHQ checked Sep 5, 202611-5059 contacts →

Indirect evidence

“Built by the retail and automotive industry itself - Halfords - to deliver seamless customer journeys and an unrivalled customer experience, Avayler is a tried and tested solution…”

Source: RevenueBase Database · checked Sep 5, 2026
22Partial evidenceSunderland, United KingdomHQ checked Sep 5, 2026n/a56 contacts →

Partial evidence

“Established in 1995, Cellular Solutions NE, now part of Communications Plus, is a trusted business telecoms provider supporting organisations across the North East and throughout…”

Source: RevenueBase Database · checked Sep 5, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 5, 202651-20055 contacts →

Partial evidence

“comitFS is the independent and vendor-neutral integrated communication solution provider to the financial markets: uniquely bringing together all aspects of Services, Products…”

Source: RevenueBase Database · checked Sep 5, 2026
24Indirect evidenceRomsey, United KingdomHQ checked Sep 5, 2026201-50054 contacts →

Indirect evidence

“We are an established AI-enabled call centre specialising in every aspect of sales and customer service.”

Source: RevenueBase Database · checked Sep 5, 2026
25Partial evidenceEasingwold, United KingdomHQ checked Sep 5, 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 5, 2026

Showing 25 of 242 omnichannel communication platforms based in the United Kingdom

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Omnichannel communication platforms based in the United Kingdom at a glance

As of Sep 5, 2026
37.7%Verified-email coverage
4.7%Mobile-number coverage
46.8Average contacts per company
11-50Median size (employees)
33.5%Largest-city concentration · London
Sep 5, 2026Page data refreshed

Companies by employee count

1-10
84
11-50
87
51-200
43
201-500
17
501-1,000
2
1,001-5,000
9

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 omnichannel communication 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 “omnichannel communication 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 omnichannel communication 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 omnichannel communication 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, 4,270 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 5, 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.

Omnichannel communication 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 omnichannel communication 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 omnichannel communication platforms are there based in the United Kingdom?

RevenueBase identified 242 omnichannel communication 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 omnichannel communication platforms?

London leads with 81 headquartered companies, followed by Manchester (7) and Birmingham (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 4,270 verified decision-maker contacts tracked across these 242 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 5, 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.