Company lists · Data refreshed September 2026
Top 25 Telecom service providers based in the United Kingdom
RevenueBase identified 773 company matches for telecom service providers associated with the United Kingdom as of September 2026 and tracks 21,267 professional contacts across them, including 5,706 with verified work emails. London is the largest hub.
This list covers company matches for telecom service 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 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest telecom service providers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,767 contacts → | ||||
Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 667 contacts → | ||||
Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 655 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 521 contacts → | ||||
Exact match “Zen is a B Corp certified telecommunications and technology service provider in the UK.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 367 contacts → | ||||
Exact match “Comex is an established major strategic partner of choice within the telecommunication sector, across the United Kingdom and Ireland, offering an end to end solution.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 273 contacts → | ||||
Exact match “Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 157 contacts → | ||||
Exact match “At BT Local Business London West & South we are part of BT's Business division.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 134 contacts → | ||||
Exact match “CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 122 contacts → | ||||
Exact match “Founded in 1994, Commsworld is a leading UK Telecommunications Network Provider and ISP and supports thousands of the UK’s leading organisations, both in public and private…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 122 contacts → | ||||
Exact match “Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 115 contacts → | ||||
Exact match “Sparta Telecom was established in Luton Bedfordshire in 2011.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 111 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 19, 2026 · View company records in RevenueBase | |||||
| 13 | 99 contacts → | ||||
Exact match “Spitfire Network Services is a UK-based, multi-award winning telecoms and ISP provider for businesses.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 97 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 · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 75 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 19, 2026 · View company records in RevenueBase | |||||
| 16 | 74 contacts → | ||||
Exact match “Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 69 contacts → | ||||
Exact match “With 30+ years of experience in industry, Welcomm transform the way businesses communicate and operate.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 61 contacts → | ||||
Exact match “Hello.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 61 contacts → | ||||
Exact match “KCOM has been a driver of innovation in the telecoms industry for more than a century; pushing the boundaries and pioneering new technology from our earliest days as a local phone…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 61 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 19, 2026 · View company records in RevenueBase | |||||
| 21 | 60 contacts → | ||||
Exact match “V4One proudly carries a die-hard belief in promoting service excellence.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 57 contacts → | ||||
Exact match “Windsor Telecom believes that technology should be easy and enjoyable.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 56 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 19, 2026 · View company records in RevenueBase | |||||
| 24 | 48 contacts → | ||||
Exact match “Customer-focused telecommunications company dedicated to building trust through transparent communication, reliable services, and unwavering commitment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 44 contacts → | ||||
Exact match “We help UK companies cut costs, stay connected, and scale smarter - with VoIP, mobile and broadband solutions that actually work.” Recorded in the RevenueBase company graph · Sep 19, 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 “telecom service providers”. 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 773 telecom service providers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 5,706 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telecom service providers based in the United Kingdom at a glance
As of Sep 19, 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 773 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 “telecom service 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 5,706 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 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
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 “telecom service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telecom service providers are there based in the United Kingdom?
RevenueBase identified 773 company matches for telecom service 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?
Vodafone Business tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most telecom service providers?
London leads with 111 company records, followed by Manchester (19) and Leeds (13).
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 5,706 professional contacts with verified work emails tracked across these 773 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 773 telecom service providers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Telecom service providers by geography
- Telecom service providers based in Belo Horizonte, Brazil
- Telecom service providers based in Rio De Janeiro, Brazil
- Telecom service providers based in Sao Paulo, Brazil
- Telecom service providers based in Argentina
- Telecom service providers based in Australia
- Telecom service providers based in Bangladesh
- Telecom service providers based in Belgium
- Telecom service providers based in Brazil
- Telecom service providers based in Canada
- Telecom service providers based in Chile
- Telecom service providers based in Colombia
- Telecom service providers based in Czechia
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
- Telecom service providers based in Belo Horizonte, Brazil
- Telecom service providers based in Rio De Janeiro, Brazil
- Telecom service providers based in Sao Paulo, Brazil
- Telecom service providers based in Argentina
- Telecom service providers based in Australia
- Telecom service providers based in Bangladesh
Company intelligence · public preview
Top 25 telecom service providers 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 773 matching company records for telecom service providers based in the United Kingdom, with 21,267 tracked contacts and 5,706 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: September 19, 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 telecom service providers 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 |  Vodafone Businessvodafone.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 6,767 contacts → |
“Vodafone Business is part of the Vodafone Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Exponential-Eexponential-e.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 667 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Onecomonecom.co.ukHQ: Fareham, United KingdomReported employees: 501-1,000 | Fareham, United Kingdom | 501-1,000 | Exact match | 655 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ZEN Internetzen.co.ukHQ: Rochdale, United KingdomReported employees: 501-1,000 | Rochdale, United Kingdom | 501-1,000 | Exact match | 521 contacts → |
“Zen is a B Corp certified telecommunications and technology service provider in the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Comex 2000comex2000uk.comHQ: Derby, United KingdomReported employees: 501-1,000 | Derby, United Kingdom | 501-1,000 | Exact match | 367 contacts → |
“Comex is an established major strategic partner of choice within the telecommunication sector, across the United Kingdom and Ireland, offering an end to end solution.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Magdalenemagdalene.co.ukHQ: St Ives, United KingdomReported employees: 201-500 | St Ives, United Kingdom | 201-500 | Exact match | 273 contacts → |
“Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  BT Local Businessbt.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 157 contacts → |
“At BT Local Business London West & South we are part of BT's Business division.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cass Worldwidecassworldwide.comHQ: Snitterfield, United KingdomReported employees: 201-500 | Snitterfield, United Kingdom | 201-500 | Exact match | 134 contacts → |
“CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Commsworldcommsworld.comHQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Founded in 1994, Commsworld is a leading UK Telecommunications Network Provider and ISP and supports thousands of the UK’s leading organisations, both in public and private…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Radius Connect Solutionsradiusconnectsolutions.comHQ: Crewe, United KingdomReported employees: 201-500 | Crewe, United Kingdom | 201-500 | Exact match | 122 contacts → |
“Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sparta Telecom LTDspartatelecom.comHQ: Luton, United KingdomReported employees: 51-200 | Luton, United Kingdom | 51-200 | Exact match | 115 contacts → |
“Sparta Telecom was established in Luton Bedfordshire in 2011.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Tela Technologytelatechnology.comHQ: Hampton-in-arden, United KingdomReported employees: 51-200 | Hampton-in-arden, United Kingdom | 51-200 | Exact match | 111 contacts → |
“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Spitfire Network Services LTDspitfire.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 99 contacts → |
“Spitfire Network Services is a UK-based, multi-award winning telecoms and ISP provider for businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  YO Telecomyotelecom.co.ukHQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 97 contacts → |
“Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  ICS Communicationsicscomms.co.ukHQ: Camberley, United KingdomReported employees: 11-50 | Camberley, United Kingdom | 11-50 | Exact match | 75 contacts → |
“Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Rydal Grouprydalgroup.co.ukHQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Welcomm Communicationswelcomm.co.ukHQ: Market Harborough, United KingdomReported employees: 51-200 | Market Harborough, United Kingdom | 51-200 | Exact match | 69 contacts → |
“With 30+ years of experience in industry, Welcomm transform the way businesses communicate and operate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  5g Communications5gcomms.comHQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 61 contacts → |
“Hello.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Kcom Wholesalekcom.comHQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 61 contacts → |
“KCOM has been a driver of innovation in the telecoms industry for more than a century; pushing the boundaries and pioneering new technology from our earliest days as a local phone…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Enconvo UKenconvo.co.ukHQ: Telford, United KingdomReported employees: 51-200 | Telford, United Kingdom | 51-200 | Exact match | 61 contacts → |
“We’re a leading unified communications provider supplying over 2 million users with the technology they need to work their magic.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | V4onev4one.co.uk HQ: Coventry, United KingdomReported employees: 51-200 | Coventry, United Kingdom | 51-200 | Exact match | 60 contacts → |
“V4One proudly carries a die-hard belief in promoting service excellence.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Windsor Telecomwindsor-telecom.co.uk HQ: Camberley, United KingdomReported employees: 51-200 | Camberley, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Windsor Telecom believes that technology should be easy and enjoyable.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cellular Solutionscellular-solutions.co.ukHQ: Sunderland, United KingdomReported employees: Not recorded | Sunderland, United Kingdom | Not recorded | Exact match | 56 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  B3 Communicationsb3communications.co.ukHQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Customer-focused telecommunications company dedicated to building trust through transparent communication, reliable services, and unwavering commitment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Prestige Telecom Groupprestigetelecomgroup.co.ukHQ: Gosport, United KingdomReported employees: 51-200 | Gosport, United Kingdom | 51-200 | Exact match | 44 contacts → |
“We help UK companies cut costs, stay connected, and scale smarter - with VoIP, mobile and broadband solutions that actually work.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 773 company matches
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Telecom service providers: dataset insights
September 19, 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
768 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 773 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: September 19, 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 ↗
Questions about this company list
What does Exact match mean for telecom service providers?
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 telecom service providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 773 matching company records, 21,267 tracked contacts and 5,706 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: September 19, 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
Telecom service providers by geography
- Telecom service providers based in Belo Horizonte, Brazil
- Telecom service providers based in Rio De Janeiro, Brazil
- Telecom service providers based in Sao Paulo, Brazil
- Telecom service providers based in Argentina
- Telecom service providers based in Australia
- Telecom service providers based in Bangladesh
- Telecom service providers based in Belgium
- Telecom service providers based in Brazil
- Telecom service providers based in Canada
- Telecom service providers based in Chile
- Telecom service providers based in Colombia
- Telecom service providers based in Czechia
Cite this list
RevenueBase Data Team. Top 25 telecom service providers based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecom-service-providers/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
- Telecom service providers based in Belo Horizonte, Brazil
- Telecom service providers based in Rio De Janeiro, Brazil
- Telecom service providers based in Sao Paulo, Brazil
- Telecom service providers based in Argentina
- Telecom service providers based in Australia
- Telecom service providers based in Bangladesh
Company intelligence · public preview
Top 25 telecom service providers based in the United Kingdom
RevenueBase records 773 matching company records for telecom service providers based in the United Kingdom, with 21,267 tracked contacts and 5,706 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: September 19, 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 telecom service providers 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 | Vodafone Businessvodafone.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 6,767 contacts → |
“Vodafone Business is part of the Vodafone Group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Exponential-Eexponential-e.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 667 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Onecomonecom.co.uk HQ: Fareham, United KingdomReported employees: 501-1,000 | Fareham, United Kingdom | 501-1,000 | Exact match | 655 contacts → |
“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 description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ZEN Internetzen.co.uk HQ: Rochdale, United KingdomReported employees: 501-1,000 | Rochdale, United Kingdom | 501-1,000 | Exact match | 521 contacts → |
“Zen is a B Corp certified telecommunications and technology service provider in the UK.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Comex 2000comex2000uk.com HQ: Derby, United KingdomReported employees: 501-1,000 | Derby, United Kingdom | 501-1,000 | Exact match | 367 contacts → |
“Comex is an established major strategic partner of choice within the telecommunication sector, across the United Kingdom and Ireland, offering an end to end solution.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Magdalenemagdalene.co.uk HQ: St Ives, United KingdomReported employees: 201-500 | St Ives, United Kingdom | 201-500 | Exact match | 273 contacts → |
“Magdalene provides comprehensive independent solutions which address the individual needs of our customers throughout the Telecommunications Industry.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | BT Local Businessbt.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 157 contacts → |
“At BT Local Business London West & South we are part of BT's Business division.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cass Worldwidecassworldwide.com HQ: Snitterfield, United KingdomReported employees: 201-500 | Snitterfield, United Kingdom | 201-500 | Exact match | 134 contacts → |
“CASS (Cabling and Splicing Services) is a services driven telecommunications specialist business.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Commsworldcommsworld.com HQ: Edinburgh, United KingdomReported employees: 51-200 | Edinburgh, United Kingdom | 51-200 | Exact match | 122 contacts → |
“Founded in 1994, Commsworld is a leading UK Telecommunications Network Provider and ISP and supports thousands of the UK’s leading organisations, both in public and private…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Radius Connect Solutionsradiusconnectsolutions.com HQ: Crewe, United KingdomReported employees: 201-500 | Crewe, United Kingdom | 201-500 | Exact match | 122 contacts → |
“Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sparta Telecom LTDspartatelecom.com HQ: Luton, United KingdomReported employees: 51-200 | Luton, United Kingdom | 51-200 | Exact match | 115 contacts → |
“Sparta Telecom was established in Luton Bedfordshire in 2011.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Tela Technologytelatechnology.com HQ: Hampton-in-arden, United KingdomReported employees: 51-200 | Hampton-in-arden, United Kingdom | 51-200 | Exact match | 111 contacts → |
“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Spitfire Network Services LTDspitfire.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 99 contacts → |
“Spitfire Network Services is a UK-based, multi-award winning telecoms and ISP provider for businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | YO Telecomyotelecom.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 97 contacts → |
“Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ICS Communicationsicscomms.co.uk HQ: Camberley, United KingdomReported employees: 11-50 | Camberley, United Kingdom | 11-50 | Exact match | 75 contacts → |
“Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Rydal Grouprydalgroup.co.uk HQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 74 contacts → |
“Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Welcomm Communicationswelcomm.co.uk HQ: Market Harborough, United KingdomReported employees: 51-200 | Market Harborough, United Kingdom | 51-200 | Exact match | 69 contacts → |
“With 30+ years of experience in industry, Welcomm transform the way businesses communicate and operate.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | 5g Communications5gcomms.com HQ: High Wycombe, United KingdomReported employees: 51-200 | High Wycombe, United Kingdom | 51-200 | Exact match | 61 contacts → |
“Hello.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Kcom Wholesalekcom.com HQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 61 contacts → |
“KCOM has been a driver of innovation in the telecoms industry for more than a century; pushing the boundaries and pioneering new technology from our earliest days as a local phone…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Enconvo UKenconvo.co.uk HQ: Telford, United KingdomReported employees: 51-200 | Telford, United Kingdom | 51-200 | Exact match | 61 contacts → |
“We’re a leading unified communications provider supplying over 2 million users with the technology they need to work their magic.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | V4onev4one.co.uk HQ: Coventry, United KingdomReported employees: 51-200 | Coventry, United Kingdom | 51-200 | Exact match | 60 contacts → |
“V4One proudly carries a die-hard belief in promoting service excellence.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Windsor Telecomwindsor-telecom.co.uk HQ: Camberley, United KingdomReported employees: 51-200 | Camberley, United Kingdom | 51-200 | Exact match | 57 contacts → |
“Windsor Telecom believes that technology should be easy and enjoyable.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cellular Solutionscellular-solutions.co.uk HQ: Sunderland, United KingdomReported employees: Not recorded | Sunderland, United Kingdom | Not recorded | Exact match | 56 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 · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | B3 Communicationsb3communications.co.uk HQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 48 contacts → |
“Customer-focused telecommunications company dedicated to building trust through transparent communication, reliable services, and unwavering commitment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Prestige Telecom Groupprestigetelecomgroup.co.uk HQ: Gosport, United KingdomReported employees: 51-200 | Gosport, United Kingdom | 51-200 | Exact match | 44 contacts → |
“We help UK companies cut costs, stay connected, and scale smarter - with VoIP, mobile and broadband solutions that actually work.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 773 company matches
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Telecom service providers: dataset insights
September 19, 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
768 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 773 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: September 19, 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 ↗
Questions about this company list
What does Exact match mean for telecom service providers?
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 telecom service providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 773 matching company records, 21,267 tracked contacts and 5,706 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: September 19, 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
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Cite this list
RevenueBase Data Team. Top 25 telecom service providers based in the United Kingdom. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecom-service-providers/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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- Telecom service providers based in Belo Horizonte, Brazil
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