Company lists · Data refreshed September 2026

Top 25 Phone system providers based in the United Kingdom

RevenueBase identified 159 company matches for phone system providers associated with the United Kingdom as of September 2026 and tracks 929 professional contacts across them, including 302 with verified work emails. London is the largest hub.

This list covers company matches for phone system 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 20, 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 20, 2026 How this list was built
159Companies
929Contacts tracked
302Verified emails
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The 25 largest phone system providers based in the United Kingdom

Ranked by team size
Top 25 of 159 company matches for phone system providers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchStonehouse, United KingdomHQ recorded Sep 20, 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 20, 2026 · View company records in RevenueBase
2Exact matchHuddersfield, United KingdomHQ recorded Sep 20, 202611-5026 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 · Sep 20, 2026 · View company records in RevenueBase
3Exact matchHarrow, United KingdomHQ recorded Sep 20, 202611-5024 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 · Sep 20, 2026 · View company records in RevenueBase
4Exact matchSouthampton, United KingdomHQ recorded Sep 20, 202611-5022 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 · Sep 20, 2026 · View company records in RevenueBase
5Exact matchGlasgow, United KingdomHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Technology should help businesses deliver projects, support growing teams and reduce risk – not become another obstacle to overcome.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchBasildon, United KingdomHQ recorded Sep 20, 202651-20020 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 · Sep 20, 2026 · View company records in RevenueBase
7Exact matchRedditch, United KingdomHQ recorded Sep 20, 202611-5020 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 · Sep 20, 2026 · View company records in RevenueBase
8Exact matchBolton, United KingdomHQ recorded Sep 20, 202651-20016 contacts →

Exact match

“Bolton based telecommunications service provider, specialising in telephone systems and maintenance, calls and lines, connectivity and mobile solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchExeter, United KingdomHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“Providing a truly integrated solution to our customers.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchBirmingham, United KingdomHQ recorded Sep 20, 202611-5016 contacts →

Exact match

“After 20 years as DJM Telecom Ltd, we have grown - moved to a new Head Office in Berkshire, a new Director and three more engineers, as well as merging with Voice on Data, our…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchIrvine, United KingdomHQ recorded Sep 20, 202651-20016 contacts →

Exact match

“Oricom Limited specialise in the design, supply, installation and support of new and existing voice and data networks.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchRomsey, United KingdomHQ recorded Sep 20, 202611-5015 contacts →

Exact match

“ElemenTel are a leading provider of next generation voice over internet (VoIP) telephony solutions to businesses of all types and sizes.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchCoatbridge, United KingdomHQ recorded Sep 20, 20261-1015 contacts →

Exact match

“Telecom Networks provides Hosted Telephony, Data Services and Mobile Solutions to businesses throughout the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBury, United KingdomHQ recorded Sep 20, 202611-5012 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 · Sep 20, 2026 · View company records in RevenueBase
15Exact matchSkipton, United KingdomHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“L A Comms is a solutions specialist in Telephone Systems, I.T, Security, SIP Trunking, voice and data connectivity and other Hosted was solutions.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchSheffield, United KingdomHQ recorded Sep 20, 202611-5011 contacts →

Exact match

“At Blue Portal, we take the hassle out of business telecoms by offering everything you need under one roof.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBolton, United KingdomHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“At ClearTech Communications, we specialise in providing market-leading hardware, advanced systems, and intuitive software to build a robust and resilient communication…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchIver, United KingdomHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“Talking Business (Southern) Ltd (est 1992) is one of the UK’s foremost communications companies, providing what is now known as converged technology.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“Nexus IP have been providing business telephony nationwide for over 30 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchBournemouth, United KingdomHQ recorded Sep 20, 202611-5010 contacts →

Exact match

“At Pioneer Business Systems, we provide a fantastic new business phone system, within your existing telephone expenditure.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchNewton Abbot, United KingdomHQ recorded Sep 20, 202611-509 contacts →

Exact match

“At Ubi we supply, install and support phone systems, mobiles, telephone lines, fibre, guest Wi-Fi and tracking and management software for businesses, hotels and schools.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchMytholmroyd, United KingdomHQ recorded Sep 20, 202611-509 contacts →

Exact match

“CommsProvider are a specialist product and service provider of business telecommunications equipment.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchBirkenhead, United KingdomHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Offering communications solutions to local and national businesses.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchLichfield, United KingdomHQ recorded Sep 20, 20261-108 contacts →

Exact match

“Integral Communications is your trusted partner in delivering cutting-edge business telecoms and network services across the UK.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchHemel Hempstead, United KingdomHQ recorded Sep 20, 202611-508 contacts →

Exact match

“Network Digital Communications (NDC) have been providing telecom solutions to small, medium, and large businesses throughout the UK for over 20 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 159 phone system providers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 302 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Phone system providers based in the United Kingdom at a glance

As of Sep 20, 2026
32.5%Verified-email coverage
5.8Average contacts per company
1-10Median size (employees)
12.6%Largest-city concentration · London
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
85
11-50
66
51-200
5
201-500
1
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 159 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 system 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 302 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 20, 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.

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 system providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 159 company matches for phone system 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?

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

Which city has the most phone system providers?

London leads with 20 company records, followed by Manchester (5) and Birmingham (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 302 professional contacts with verified work emails tracked across these 159 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 20, 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.