Company lists · Data refreshed November 2026

Top 25 Phone communication providers based in the United Kingdom

RevenueBase identified 365 company matches for phone communication providers associated with the United Kingdom as of November 2026 and tracks 3,975 professional contacts across them, including 1,309 with verified work emails. London is the largest hub.

This list covers company matches for phone communication 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 November 6, 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 Nov 6, 2026 How this list was built
365Companies
3,975Contacts tracked
1,309Verified emails
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The 25 largest phone communication providers based in the United Kingdom

Ranked by team size
Top 25 of 365 company matches for phone communication providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchFareham, United KingdomHQ recorded Nov 6, 2026501-1,000715 contacts →

Exact match

“Onecom is the UK’s leading business telecoms and cloud communications provider managing over a million services for business customers - delivering communication services and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202651-200112 contacts →

Exact match

“Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCamberley, United KingdomHQ recorded Nov 6, 202611-5081 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-20070 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchTelford, United KingdomHQ recorded Nov 6, 202651-20070 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSunderland, United KingdomHQ recorded Nov 6, 2026n/a61 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchStonehouse, United KingdomHQ recorded Nov 6, 202611-5039 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchBelfast, United KingdomHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Clarity Telecom is Northern Ireland's leading alternative to BT.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCatterick Garrison, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Signal Telecom is one of the longest established family run communication companies in the North of England, dedicated to providing businesses with the complete package of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchHarrow, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“With a legacy rooted in two decades of telecom consulting and services expertise, PineVox emerges as a visionary leader in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Emerald Cloud Phone System, offers both high-quality traditional telephone lines and cloud phone system packages.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHertfordshire, United KingdomHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“Comms Connect is an award-winning UK provider of business communications, connectivity and energy solutions, helping organisations stay connected, productive and competitive.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchBasildon, United KingdomHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNewbury, United KingdomHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Trusted Telecoms Experts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchHuddersfield, United KingdomHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“At DVAD we’re a full service voice and data supplier providing flexible, world-class business telecoms systems and IT solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHam Green, United KingdomHQ recorded Nov 6, 20261-1025 contacts →

Exact match

“Alliance Communications provides businesses with clear impartial advice on a range of communications needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCirencester, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Mainstream Digital – Communications Solutions for Business Mainstream Digital is a Business Communications solutions provider with over 20 years of telecommunications experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“Telecom2 is an all-in one, business to business telecommunications provider with an extensive portfolio of technology, products and services across the voice and mobile sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWelwyn Garden City, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“VSL delivers tailored communications solutions across all business sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchRedditch, United KingdomHQ recorded Nov 6, 202611-5023 contacts →

Exact match

“We are a dedicated team of individuals with over 25 years' worth of experience providing and installing business telephony systems across the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCheshire, United KingdomHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“At GPS Telecom, we help UK businesses stay connected with reliable, straightforward telecoms solutions, from VoIP phone systems to business mobile plans and fast, secure internet…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“With over 30 years of experience in the telecoms industry we specialise in the installation of award-winning phone systems from some of the biggest names like Samsung, Siemens…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEastleigh, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Sirus are a provider of telecommunication products and services to business customers throughout the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchRutherglen, United KingdomHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“Telecom Networks is a trusted UK provider of business communication, connectivity, security, and technology solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026201-50019 contacts →

Exact match

“2 Circles Solutions have partnered with SCG Communications, NSN & Hello Telecom, creating 'SCG Solutions' creating a supercharged service provider with over 50 years of combined…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 365 phone communication providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 1,309 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone communication providers based in the United Kingdom at a glance

As of Nov 6, 2026
32.9%Verified-email coverage
10.9Average contacts per company
1-10Median size (employees)
15.9%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
182
11-50
145
51-200
17
201-500
3
501-1,000
3
1,001-5,000
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 365 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 “phone communication 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 1,309 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 November 6, 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.

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

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

RevenueBase identified 365 company matches for phone communication providers associated with the United Kingdom as of November 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?

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

Which city has the most phone communication providers?

London leads with 58 company records, followed by Manchester (10) and Birmingham (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 1,309 professional contacts with verified work emails tracked across these 365 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 November 6, 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.