Company lists · Data refreshed October 2026

Top 25 Communications platform as a service software companies based in the United Kingdom

RevenueBase identified 149 company matches for communications platform as a service software companies associated with the United Kingdom as of October 2026 and tracks 1,886 professional contacts across them, including 550 with verified work emails. London is the largest hub.

This list covers company matches for communications platform as a service software companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 19, 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 RevenueBase SmartSearch · Exact Recorded Oct 19, 2026 How this list was built
149Companies
1,886Contacts tracked
550Verified emails
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The 25 largest communications platform as a service software companies based in the United Kingdom

Ranked by team size
Top 25 of 149 company matches for communications platform as a service software companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 19, 20261,001-5,000417 contacts →

Exact match

“We've moved!”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 19, 202651-20098 contacts →

Exact match

“tyntec is a cloud communications provider enabling businesses to communicate easier with their customers, workforce and machines.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 19, 2026501-1,00080 contacts →

Exact match

“Sipcom exists to make you the hero of your business narrative by turning complexity into clarity.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 19, 202651-20070 contacts →

Exact match

“Telappliant is an award-winning VoIP and cloud communications provider.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchBolton, United KingdomHQ recorded Oct 19, 202651-20066 contacts →

Exact match

“Born in Bolton and connected across Europe, Firstcom Europe delivers technology without intimidation, helping businesses communicate, connect, protect and grow through telephony…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchBath, United KingdomHQ recorded Oct 19, 202651-20064 contacts →

Exact match

“Gradwell Communications Ltd are a leading cloud communications solutions provider with a focus on small to medium-sized businesses (SMEs).”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchGuildford, United KingdomHQ recorded Oct 19, 202651-20063 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 19, 202651-20051 contacts →

Exact match

“Manor IT (UK) Limited is an esteemed industry leader, specializing in global wholesale and retail Voice & SMS termination and Communications Platform as a Service (CPaaS).”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 19, 202611-5045 contacts →

Exact match

“Microtalk: Wholesale SMS & Carrier-Grade Connectivity Simplified For over 15 years, Microtalk has empowered businesses globally with reliable voice, messaging, and cloud…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchEast Kilbride, United KingdomHQ recorded Oct 19, 202611-5040 contacts →

Exact match

“As the UK and Ireland’s longest serving trusted advisor to the Contact Centre industry, SVL has grown to become a leading provider of unified cloud communications and telephony…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchSlough, United KingdomHQ recorded Oct 19, 202651-20039 contacts →

Exact match

“We are a leading worldwide provider of cloud-based and customer hosted managed visual communication and collaboration services.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 19, 202611-5039 contacts →

Exact match

“Xinix is UK’s leading cloud-based unified communication provider making persistent efforts towards modernizing business communications.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Oct 19, 202611-5034 contacts →

Exact match

“QuickBlox is a leading cloud communication platform helping businesses bring AI-driven chat, video, and automation into their digital products-quickly, securely, and at scale.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchRossendale, United KingdomHQ recorded Oct 19, 202651-20022 contacts →

Exact match

“At Mission Labs we have a single vision: to power the future of business communications.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchBridgnorth, United KingdomHQ recorded Oct 19, 202611-5021 contacts →

Exact match

“17 Years of Telecommunications Excellence: Specialising in Cloud-Based Solutions to Keep You Connected to Your Customers and Colleagues Before the 2025 Switch-Off.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchBristol, United KingdomHQ recorded Oct 19, 202611-5017 contacts →

Exact match

“Conversant Technology empowers businesses with digital-first communication solutions, built on the strength of Microsoft Teams.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchLeicester, United KingdomHQ recorded Oct 19, 202611-5016 contacts →

Exact match

“CLOUD TELEPHONE SYSTEM The VoIP Shop is a leading provider of business VoIP phone systems, offering reliable and affordable solutions for small and medium-sized enterprises.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchWatford, United KingdomHQ recorded Oct 19, 2026201-50016 contacts →

Exact match

“StarLeaf enables seamless collaboration through intelligently engineered, reliable meeting room systems, superior video conferencing, and secure messaging.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchBury, United KingdomHQ recorded Oct 19, 202611-5014 contacts →

Exact match

“At Connect Comms we are committed to supplying all our customers with a first-class service from start to finish for no extra expense.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchManchester, United KingdomHQ recorded Oct 19, 202611-5014 contacts →

Exact match

“The future of customer experience Our cutting-edge solutions are designed to empower businesses like yours to provide exceptional customer experiences that set you apart from the…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Oct 19, 202611-5013 contacts →

Exact match

“VTSL Ltd is a leading cloud communications company in the UK & Ireland.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
22Exact matchChester, United KingdomHQ recorded Oct 19, 202651-20013 contacts →

Exact match

“Daktela brings every customer conversation, voice, email, web chat, SMS, and social media, into one place, so your team can focus on what matters: delivering great experiences.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
23Exact matchChorleywood, United KingdomHQ recorded Oct 19, 202651-20013 contacts →

Exact match

“British based Splicecom is the Channel focussed Voice Solution provider offering enhanced voice services deployed in the cloud, on–premise or any blend of the two.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
24Exact matchSnodland, United KingdomHQ recorded Oct 19, 202611-5011 contacts →

Exact match

“The Real PBX is a leading provider of unified cloud communication services to consumers and businesses.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
25Exact matchCambridge, United KingdomHQ recorded Oct 19, 20261-1010 contacts →

Exact match

“1plex is a Microsoft Teams specialist based in Cambridge, helping organisations transform how they communicate and collaborate.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 25 of 149 communications platform as a service software companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 550 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Communications platform as a service software companies based in the United Kingdom at a glance

As of Oct 19, 2026
29.2%Verified-email coverage
12.7Average contacts per company
11-50Median size (employees)
32.9%Largest-city concentration · London
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
64
11-50
55
51-200
20
201-500
3
501-1,000
3
1,001-5,000
1
10001+
1

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 149 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “communications platform as a service software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 550 professional contacts with verified work emails across the full matched dataset. 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 October 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Communications platform as a service software companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “communications platform as a service software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many communications platform as a service software companies are there based in the United Kingdom?

RevenueBase identified 149 company matches for communications platform as a service software companies associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Imimobile Part Of Webex tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most communications platform as a service software companies?

London leads with 49 company records, followed by Manchester (5) and Bolton (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 550 professional contacts with verified work emails tracked across these 149 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 19, 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 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.