Company lists · Data refreshed September 2026

Top 25 Enterprise communication solutions providers based in the United Kingdom

RevenueBase identified 385 company matches for enterprise communication solutions providers associated with the United Kingdom as of September 2026 and tracks 6,185 professional contacts across them, including 2,041 with verified work emails. London is the largest hub.

This list covers company matches for enterprise communication solutions providers 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 September 28, 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 Sep 28, 2026 How this list was built
385Companies
6,185Contacts tracked
2,041Verified emails
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The 25 largest enterprise communication solutions providers based in the United Kingdom

Ranked by team size
Top 25 of 385 company matches for enterprise communication solutions providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 Sep 28, 20261,001-5,0001,568 contacts →

Exact match

“Gamma Communications is a leading provider of technology-based communication solutions across Europe.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,000186 contacts →

Exact match

“Maintel is a leading systems integrator and managed services provider, delivering effortless communications solutions to a broad spectrum of businesses in the UK and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchCrewe, United KingdomHQ recorded Sep 28, 2026201-500122 contacts →

Exact match

“Radius Connect Solutions is an award-winning independent “total communications” solution provider.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchHampton-in-arden, United KingdomHQ recorded Sep 28, 202651-200111 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20090 contacts →

Exact match

“Made for businesses of all sizes, Bicom Systems revolutionizes communications by providing PBXware, the world's most unified turnkey open standards hosted telephony platform, plus…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 28, 2026501-1,00086 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 · Sep 28, 2026 · View company records in RevenueBase
7Exact matchBath, United KingdomHQ recorded Sep 28, 202651-20085 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 · Sep 28, 2026 · View company records in RevenueBase
8Exact matchCamberley, United KingdomHQ recorded Sep 28, 202611-5075 contacts →

Exact match

“Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 28, 202651-20067 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 28, 20261,001-5,00063 contacts →

Exact match

“Aura helps global enterprises streamline communications, customer experience and AI.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchGuildford, United KingdomHQ recorded Sep 28, 202651-20062 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 · Sep 28, 2026 · View company records in RevenueBase
12Exact matchTelford, United KingdomHQ recorded Sep 28, 202651-20061 contacts →

Exact match

“We’re a leading unified communications provider supplying over 2 million users with the technology they need to work their magic.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchSunderland, United KingdomHQ recorded Sep 28, 202611-5059 contacts →

Exact match

“We are B2B Telecom & IoT solution providers.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchCamberley, United KingdomHQ recorded Sep 28, 202651-20057 contacts →

Exact match

“Windsor Telecom believes that technology should be easy and enjoyable.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchSunderland, United KingdomHQ recorded Sep 28, 2026n/a56 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchHull, United KingdomHQ recorded Sep 28, 202651-20053 contacts →

Exact match

“The "whole" in one solution for your business telecommunications, mobile phones, broadband, I.T.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchKingston Upon Hull, United KingdomHQ recorded Sep 28, 202611-5050 contacts →

Exact match

“Reality Solutions Limited is an independent provider of IT, communications services and financial business software solutions to corporate enterprises, SMEs and public sector…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5045 contacts →

Exact match

“Microtalk: Global Communications Made Simple For over 15 years, Microtalk has delivered reliable voice, messaging, and cloud communications to businesses worldwide.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchChippenham, United KingdomHQ recorded Sep 28, 202651-20044 contacts →

Exact match

“Our software and expertise put you on the fast-track to modern, self-hosted conferencing with Cisco.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchSolihull, United KingdomHQ recorded Sep 28, 202651-20042 contacts →

Exact match

“Amillan is a communications integrator that delivers solutions to make your organisation perform better.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchReigate, United KingdomHQ recorded Sep 28, 202611-5034 contacts →

Exact match

“Class Networks was acquired by SCG in March 2021, and we have now joined Southern Communications Corporate Solutions, rebranding as SCG Corporate.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchBournemouth, United KingdomHQ recorded Sep 28, 202651-20033 contacts →

Exact match

“At Mtech, we pride ourselves in taking an honest view of your current telecoms solution, if needed we will demonstrate how our package not only simplifies your set up, with the…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 28, 202611-5033 contacts →

Exact match

“Your Comms Group: Connecting Beyond Words.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchStonehouse, United KingdomHQ recorded Sep 28, 202611-5032 contacts →

Exact match

“At Lister Unified Communications we understand that everyone’s business telephone requirements are different.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSlough, United KingdomHQ recorded Sep 28, 202651-20032 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 · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 385 enterprise communication solutions providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,041 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise communication solutions providers based in the United Kingdom at a glance

As of Sep 28, 2026
33.0%Verified-email coverage
16.1Average contacts per company
11-50Median size (employees)
20.0%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
166
51-200
40
201-500
6
501-1,000
5
1,001-5,000
3
5,001-10,000
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 385 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 “enterprise communication solutions providers” 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 2,041 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 September 28, 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.

Enterprise communication solutions providers 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 “enterprise communication solutions providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise communication solutions providers are there based in the United Kingdom?

RevenueBase identified 385 company matches for enterprise communication solutions providers associated with the United Kingdom as of September 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?

GAMMA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most enterprise communication solutions providers?

London leads with 77 company records, followed by Birmingham (9) and Bristol (6).

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 2,041 professional contacts with verified work emails tracked across these 385 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 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 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.