Company lists · Data refreshed November 2026
Top 25 Phone system integrators based in the United Kingdom
RevenueBase identified 330 company matches for phone system integrators associated with the United Kingdom as of November 2026 and tracks 3,226 professional contacts across them, including 1,154 with verified work emails. London is the largest hub.
This list covers company matches for phone system integrators 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.
The 25 largest phone system integrators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 203 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 120 contacts → | ||||
Exact match “Cinos is an industry-leading, agile, and innovative systems integrator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 102 contacts → | ||||
Exact match “Better protect your people, places and spaces.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 91 contacts → | ||||
Exact match “Connecting people, places, and possibilities through transformative workplace technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 87 contacts → | ||||
Exact match “Crossover is a leading audiovisual systems integrator – we deliver AV that’s high quality, powerful, simple to use, and reliable.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 70 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 | |||||
| 7 | 61 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 | |||||
| 8 | 50 contacts → | ||||
Exact match “AdEPT Technology Group plc is listed on the London Stock Exchange.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 44 contacts → | ||||
Exact match “Amillan is a communications integrator that delivers solutions to make your organisation perform better.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 42 contacts → | ||||
Exact match “Ajar Technology is a successful and highly regarded end-to-end systems integrator with bases in Brentford and Bolton.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 42 contacts → | ||||
Exact match “SAS Wireless is an experienced, UK based systems integrator and services provider for the wireless communications industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 40 contacts → | ||||
Exact match “StriveAV is one of Europe’s most dedicated and passionate audio AV systems integrator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 40 contacts → | ||||
Exact match “Astro Communications are experts in solving business challenges through the design, deployment and management of end-to-end communications and networking solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 39 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 | |||||
| 15 | 38 contacts → | ||||
Exact match “TBG Solutions Ltd – Skilled Integrators specialising in test, measurement, control and automation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 36 contacts → | ||||
Exact match “CIE is one of the UK's leading Security, Access Control and Audio Visual distributors, supplying installers and integrators with professional intercom, access control and AV…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 32 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 | |||||
| 18 | 29 contacts → | ||||
Exact match “From a business perspective Nexsis Comms pretty much cover all elements that will make an office run as required.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 27 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 | |||||
| 20 | 25 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 | |||||
| 21 | 23 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 | |||||
| 22 | 23 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 23 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 | |||||
| 24 | 22 contacts → | ||||
Exact match “Indigo Unified Communications makes IT easy for businesses across Scotland.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 22 contacts → | ||||
Exact match “Trading System Support is the largest global specialist maintainer & integrator of Trader-Voice systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “phone system integrators”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 330 phone system integrators based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 1,154 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Phone system integrators based in the United Kingdom at a glance
As of Nov 6, 2026Companies by employee count
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 330 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 integrators” 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 1,154 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 system integrators 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 system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many phone system integrators are there based in the United Kingdom?
RevenueBase identified 330 company matches for phone system integrators 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?
Maintel Azzurri 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 integrators?
London leads with 50 company records, followed by Glasgow (9) and Manchester (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 1,154 professional contacts with verified work emails tracked across these 330 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.
Ready to reach these companies? Verified emails and direct dials for all 330 phone system integrators based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Phone system integrators by geography
- Phone system integrators based in Sao Paulo, Brazil
- Phone system integrators based in Rome, Italy
- Phone system integrators based in Riyadh, Saudi Arabia
- Phone system integrators based in Istanbul, Türkiye
- Phone system integrators based in Dubai, United Arab Emirates
- Phone system integrators based in London, United Kingdom
- Phone system integrators based in Austin, United States
- Phone system integrators based in Dallas, United States
- Phone system integrators based in Houston, United States
- Phone system integrators based in New York, United States
- Phone system integrators based in Argentina
- Phone system integrators based in Australia
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Phone system integrators based in Sao Paulo, Brazil
- Phone system integrators based in Rome, Italy
- Phone system integrators based in Riyadh, Saudi Arabia
- Phone system integrators based in Istanbul, Türkiye
- Phone system integrators based in Dubai, United Arab Emirates
- Phone system integrators based in London, United Kingdom
Company intelligence · public preview
Top 25 phone system integrators based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 330 matching company records for phone system integrators based in the United Kingdom, with 3,226 tracked contacts and 1,154 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 phone system integrators based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Maintel Azzurri Communicationsmaintel.co.ukHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 203 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  CINOScinos.netHQ: Frimley, United KingdomReported employees: 51-200 | Frimley, United Kingdom | 51-200 | Exact match | 120 contacts → |
“Cinos is an industry-leading, agile, and innovative systems integrator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Total Integrated Solutions TIS LTDtis.co.ukHQ: Mansfield, United KingdomReported employees: 51-200 | Mansfield, United Kingdom | 51-200 | Exact match | 102 contacts → |
“Better protect your people, places and spaces.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Twistedpair LTDtwistedpair.co.ukHQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 91 contacts → |
“Connecting people, places, and possibilities through transformative workplace technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Crossovercrossover-av.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 87 contacts → |
“Crossover is a leading audiovisual systems integrator – we deliver AV that’s high quality, powerful, simple to use, and reliable.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Telapplianttelappliant.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Telappliant is an award-winning VoIP and cloud communications provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Cellular Solutionscellular-solutions.co.ukHQ: Sunderland, United KingdomReported employees: Not recorded | Sunderland, United Kingdom | Not recorded | Exact match | 61 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Adept Technology Group PLCadept.co.ukHQ: Tunbridge Wells, United KingdomReported employees: 201-500 | Tunbridge Wells, United Kingdom | 201-500 | Exact match | 50 contacts → |
“AdEPT Technology Group plc is listed on the London Stock Exchange.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Amillan Limitedamillan.co.ukHQ: Solihull, United KingdomReported employees: 51-200 | Solihull, United Kingdom | 51-200 | Exact match | 44 contacts → |
“Amillan is a communications integrator that delivers solutions to make your organisation perform better.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Ajar Technologyajartechnology.comHQ: Brentford, United KingdomReported employees: 11-50 | Brentford, United Kingdom | 11-50 | Exact match | 42 contacts → |
“Ajar Technology is a successful and highly regarded end-to-end systems integrator with bases in Brentford and Bolton.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  SAS Wirelesssaswireless.comHQ: Thame, United KingdomReported employees: 51-200 | Thame, United Kingdom | 51-200 | Exact match | 42 contacts → |
“SAS Wireless is an experienced, UK based systems integrator and services provider for the wireless communications industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Strive AVstriveav.comHQ: Felbridge, United KingdomReported employees: 11-50 | Felbridge, United Kingdom | 11-50 | Exact match | 40 contacts → |
“StriveAV is one of Europe’s most dedicated and passionate audio AV systems integrator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Astro Communications LTDastro.co.ukHQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Astro Communications are experts in solving business challenges through the design, deployment and management of end-to-end communications and networking solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Lister Unified Communicationslister-communications.co.ukHQ: Stonehouse, United KingdomReported employees: 11-50 | Stonehouse, United Kingdom | 11-50 | Exact match | 39 contacts → |
“At Lister Unified Communications we understand that everyone’s business telephone requirements are different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  TBG Solutions LTDtbg-solutions.comHQ: Chesterfield, United KingdomReported employees: 51-200 | Chesterfield, United Kingdom | 51-200 | Exact match | 38 contacts → |
“TBG Solutions Ltd – Skilled Integrators specialising in test, measurement, control and automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Cie-Groupcie-group.comHQ: Nottingham, United KingdomReported employees: 11-50 | Nottingham, United Kingdom | 11-50 | Exact match | 36 contacts → |
“CIE is one of the UK's leading Security, Access Control and Audio Visual distributors, supplying installers and integrators with professional intercom, access control and AV…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Pinevoxpinevox.comHQ: Harrow, United KingdomReported employees: 11-50 | Harrow, United Kingdom | 11-50 | Exact match | 32 contacts → |
“With a legacy rooted in two decades of telecom consulting and services expertise, PineVox emerges as a visionary leader in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Nexsis Comms LTDnexsiscomms.comHQ: Derby, United KingdomReported employees: 11-50 | Derby, United Kingdom | 11-50 | Exact match | 29 contacts → |
“From a business perspective Nexsis Comms pretty much cover all elements that will make an office run as required.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Wavetel Business LTDwavetelbusiness.co.ukHQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 27 contacts → |
“Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Direct Voice & Datadvad.co.ukHQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At DVAD we’re a full service voice and data supplier providing flexible, world-class business telecoms systems and IT solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Mainstream Digitalmsdigital.comHQ: Cirencester, United KingdomReported employees: 11-50 | Cirencester, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Mainstream Digital – Communications Solutions for Business Mainstream Digital is a Business Communications solutions provider with over 20 years of telecommunications experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Telecentric LTDtelecentric.co.ukHQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 23 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Ucall Telecomucall.org.ukHQ: Redditch, United KingdomReported employees: 11-50 | Redditch, United Kingdom | 11-50 | Exact match | 23 contacts → |
“We are a dedicated team of individuals with over 25 years' worth of experience providing and installing business telephony systems across the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Indigo Unified Communicationsindigocomms.co.ukHQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Indigo Unified Communications makes IT easy for businesses across Scotland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Trading System Supporttradingsupport.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Trading System Support is the largest global specialist maintainer & integrator of Trader-Voice systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 330 company matches
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Phone system integrators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
325 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 330 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Phone system integrators by metro
Questions about this company list
What does Exact match mean for phone system integrators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many phone system integrators did RevenueBase find based in the United Kingdom?
The saved snapshot records 330 matching company records, 3,226 tracked contacts and 1,154 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Phone system integrators by geography
- Phone system integrators based in Sao Paulo, Brazil
- Phone system integrators based in Rome, Italy
- Phone system integrators based in Riyadh, Saudi Arabia
- Phone system integrators based in Istanbul, Türkiye
- Phone system integrators based in Dubai, United Arab Emirates
- Phone system integrators based in London, United Kingdom
- Phone system integrators based in Austin, United States
- Phone system integrators based in Dallas, United States
- Phone system integrators based in Houston, United States
- Phone system integrators based in New York, United States
- Phone system integrators based in Argentina
- Phone system integrators based in Australia
Cite this list
RevenueBase Data Team. Top 25 phone system integrators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/phone-system-integrators/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Phone system integrators based in Sao Paulo, Brazil
- Phone system integrators based in Rome, Italy
- Phone system integrators based in Riyadh, Saudi Arabia
- Phone system integrators based in Istanbul, Türkiye
- Phone system integrators based in Dubai, United Arab Emirates
- Phone system integrators based in London, United Kingdom
Company intelligence · public preview
Top 25 phone system integrators based in the United Kingdom
RevenueBase records 330 matching company records for phone system integrators based in the United Kingdom, with 3,226 tracked contacts and 1,154 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 phone system integrators based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Maintel Azzurri Communicationsmaintel.co.uk HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 203 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | CINOScinos.net HQ: Frimley, United KingdomReported employees: 51-200 | Frimley, United Kingdom | 51-200 | Exact match | 120 contacts → |
“Cinos is an industry-leading, agile, and innovative systems integrator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Total Integrated Solutions TIS LTDtis.co.uk HQ: Mansfield, United KingdomReported employees: 51-200 | Mansfield, United Kingdom | 51-200 | Exact match | 102 contacts → |
“Better protect your people, places and spaces.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Twistedpair LTDtwistedpair.co.uk HQ: Portsmouth, United KingdomReported employees: 51-200 | Portsmouth, United Kingdom | 51-200 | Exact match | 91 contacts → |
“Connecting people, places, and possibilities through transformative workplace technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Crossovercrossover-av.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 87 contacts → |
“Crossover is a leading audiovisual systems integrator – we deliver AV that’s high quality, powerful, simple to use, and reliable.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Telapplianttelappliant.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 70 contacts → |
“Telappliant is an award-winning VoIP and cloud communications provider.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Cellular Solutionscellular-solutions.co.uk HQ: Sunderland, United KingdomReported employees: Not recorded | Sunderland, United Kingdom | Not recorded | Exact match | 61 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Adept Technology Group PLCadept.co.uk HQ: Tunbridge Wells, United KingdomReported employees: 201-500 | Tunbridge Wells, United Kingdom | 201-500 | Exact match | 50 contacts → |
“AdEPT Technology Group plc is listed on the London Stock Exchange.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Amillan Limitedamillan.co.uk HQ: Solihull, United KingdomReported employees: 51-200 | Solihull, United Kingdom | 51-200 | Exact match | 44 contacts → |
“Amillan is a communications integrator that delivers solutions to make your organisation perform better.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ajar Technologyajartechnology.com HQ: Brentford, United KingdomReported employees: 11-50 | Brentford, United Kingdom | 11-50 | Exact match | 42 contacts → |
“Ajar Technology is a successful and highly regarded end-to-end systems integrator with bases in Brentford and Bolton.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | SAS Wirelesssaswireless.com HQ: Thame, United KingdomReported employees: 51-200 | Thame, United Kingdom | 51-200 | Exact match | 42 contacts → |
“SAS Wireless is an experienced, UK based systems integrator and services provider for the wireless communications industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Strive AVstriveav.com HQ: Felbridge, United KingdomReported employees: 11-50 | Felbridge, United Kingdom | 11-50 | Exact match | 40 contacts → |
“StriveAV is one of Europe’s most dedicated and passionate audio AV systems integrator.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Astro Communications LTDastro.co.uk HQ: Dartford, United KingdomReported employees: 11-50 | Dartford, United Kingdom | 11-50 | Exact match | 40 contacts → |
“Astro Communications are experts in solving business challenges through the design, deployment and management of end-to-end communications and networking solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lister Unified Communicationslister-communications.co.uk HQ: Stonehouse, United KingdomReported employees: 11-50 | Stonehouse, United Kingdom | 11-50 | Exact match | 39 contacts → |
“At Lister Unified Communications we understand that everyone’s business telephone requirements are different.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | TBG Solutions LTDtbg-solutions.com HQ: Chesterfield, United KingdomReported employees: 51-200 | Chesterfield, United Kingdom | 51-200 | Exact match | 38 contacts → |
“TBG Solutions Ltd – Skilled Integrators specialising in test, measurement, control and automation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cie-Groupcie-group.com HQ: Nottingham, United KingdomReported employees: 11-50 | Nottingham, United Kingdom | 11-50 | Exact match | 36 contacts → |
“CIE is one of the UK's leading Security, Access Control and Audio Visual distributors, supplying installers and integrators with professional intercom, access control and AV…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Pinevoxpinevox.com HQ: Harrow, United KingdomReported employees: 11-50 | Harrow, United Kingdom | 11-50 | Exact match | 32 contacts → |
“With a legacy rooted in two decades of telecom consulting and services expertise, PineVox emerges as a visionary leader in the industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Nexsis Comms LTDnexsiscomms.com HQ: Derby, United KingdomReported employees: 11-50 | Derby, United Kingdom | 11-50 | Exact match | 29 contacts → |
“From a business perspective Nexsis Comms pretty much cover all elements that will make an office run as required.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wavetel Business LTDwavetelbusiness.co.uk HQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 27 contacts → |
“Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Direct Voice & Datadvad.co.uk HQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 25 contacts → |
“At DVAD we’re a full service voice and data supplier providing flexible, world-class business telecoms systems and IT solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Mainstream Digitalmsdigital.com HQ: Cirencester, United KingdomReported employees: 11-50 | Cirencester, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Mainstream Digital – Communications Solutions for Business Mainstream Digital is a Business Communications solutions provider with over 20 years of telecommunications experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Telecentric LTDtelecentric.co.uk HQ: Birmingham, United KingdomReported employees: 11-50 | Birmingham, United Kingdom | 11-50 | Exact match | 23 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Ucall Telecomucall.org.uk HQ: Redditch, United KingdomReported employees: 11-50 | Redditch, United Kingdom | 11-50 | Exact match | 23 contacts → |
“We are a dedicated team of individuals with over 25 years' worth of experience providing and installing business telephony systems across the UK.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Indigo Unified Communicationsindigocomms.co.uk HQ: Glasgow, United KingdomReported employees: 11-50 | Glasgow, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Indigo Unified Communications makes IT easy for businesses across Scotland.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Trading System Supporttradingsupport.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 22 contacts → |
“Trading System Support is the largest global specialist maintainer & integrator of Trader-Voice systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 330 company matches
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Phone system integrators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
325 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 330 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Phone system integrators by metro
Questions about this company list
What does Exact match mean for phone system integrators?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many phone system integrators did RevenueBase find based in the United Kingdom?
The saved snapshot records 330 matching company records, 3,226 tracked contacts and 1,154 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Phone system integrators by geography
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- Phone system integrators based in Dubai, United Arab Emirates
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- Phone system integrators based in Houston, United States
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Cite this list
RevenueBase Data Team. Top 25 phone system integrators based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/phone-system-integrators/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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