Company lists · Data refreshed September 2026
Top 17 Enterprise sip trunk providers based in the United Kingdom
RevenueBase identified 49 company matches for enterprise sip trunk providers associated with the United Kingdom as of September 2026 and tracks 334 professional contacts across them, including 100 with verified work emails. London is the largest hub.
This list covers company matches for enterprise sip trunk providers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 17 largest enterprise sip trunk providers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 85 contacts → | ||||
Exact match “Gradwell Communications Ltd are a leading cloud communications solutions provider with a focus on small to medium-sized businesses (SMEs).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 20 contacts → | ||||
Exact match “Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 19 contacts → | ||||
Exact match “Since 2006, Birmingham Telecom has been helping businesses across the UK with reliable business telecoms, Managed IT Support, Cyber Security and Connectivity Solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 12 contacts → | ||||
Exact match “IP Office Ltd is a leading supplier of business communications and IT services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 12 contacts → | ||||
Exact match “We connect millions of telephone calls for businesses each year, with our modern cloud technology and easy to use platforms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 11 contacts → | ||||
Exact match “L A Comms is a solutions specialist in Telephone Systems, I.T, Security, SIP Trunking, voice and data connectivity and other Hosted was solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 7 | 10 contacts → | ||||
Exact match “Nexus IP have been providing business telephony nationwide for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 8 | 8 contacts → | ||||
Exact match “Exactive’s mission is to deliver results by transforming the way people work.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “Integral Communications is your trusted partner in delivering cutting-edge business telecoms and network services across the UK.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 4 contacts → | ||||
Exact match “Sipalto is made up of remarkable individuals who pool their wealth of knowledge, understanding and expertise to deliver an incredible communications experience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 4 contacts → | ||||
Exact match “For over a decade we have provided tailored communications solutions to businesses both large and small.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 4 contacts → | ||||
Exact match “Voicelinx are experts in VOIP telecoms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 2 contacts → | ||||
Exact match “At EveryDay Voip we provide Cloud Based Pbx services for Small, Medium and Large businesses, no matter your requirement or location.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “s3 Communications Ltd was founded as a result of the ever-increasing convergence between IT and Telephony and the fact that in 2025 BT will switch off the traditional ISDN network…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “SureVoIP is an Ofcom registered Internet Telephony Service Provider supplying hosted VoIP solutions, SIP trunks, Inbound numbers and other related VoIP products and services.” Recorded in the RevenueBase company graph · Sep 28, 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 “enterprise sip trunk 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 17 of 49 enterprise sip trunk providers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 100 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Enterprise sip trunk providers based in the United Kingdom at a glance
As of Sep 28, 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 49 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United Kingdom whose business descriptions match “enterprise sip trunk 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 100 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise sip trunk providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many enterprise sip trunk providers are there based in the United Kingdom?
RevenueBase identified 49 company matches for enterprise sip trunk 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?
Gradwell tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most enterprise sip trunk providers?
London leads with 11 company records, followed by Dunfermline (2) and Norwich (2).
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 100 professional contacts with verified work emails tracked across these 49 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 49 enterprise sip trunk providers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Enterprise sip trunk providers by geography
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
- Enterprise sip trunk providers based in Canada
- Enterprise sip trunk providers based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
- Media companies based in the United Kingdom
Company intelligence · public preview
Top 17 enterprise sip trunk 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 49 matching company records for enterprise sip trunk providers based in the United Kingdom, with 334 tracked contacts and 100 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 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 17 enterprise sip trunk 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 |  Gradwellgradwell.comHQ: Bath, United KingdomReported employees: 51-200 | Bath, United Kingdom | 51-200 | Exact match | 85 contacts → |
“Gradwell Communications Ltd are a leading cloud communications solutions provider with a focus on small to medium-sized businesses (SMEs).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Wavetel Business LTDwavetelbusiness.co.ukHQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 20 contacts → |
“Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Birmingham Telecommunications Limitedbirminghamtelecom.co.ukHQ: Coleshill, United KingdomReported employees: 11-50 | Coleshill, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Since 2006, Birmingham Telecom has been helping businesses across the UK with reliable business telecoms, Managed IT Support, Cyber Security and Connectivity Solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  IP Office LTDipofficeltd.co.ukHQ: Exeter, United KingdomReported employees: 11-50 | Exeter, United Kingdom | 11-50 | Exact match | 12 contacts → |
“IP Office Ltd is a leading supplier of business communications and IT services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  MI Telecommi-telecom.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 12 contacts → |
“We connect millions of telephone calls for businesses each year, with our modern cloud technology and easy to use platforms.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | L A Comms LTDlacomms.com HQ: Skipton, United KingdomReported employees: 11-50 | Skipton, United Kingdom | 11-50 | Exact match | 11 contacts → |
“L A Comms is a solutions specialist in Telephone Systems, I.T, Security, SIP Trunking, voice and data connectivity and other Hosted was solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nexus IPnexusip.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Nexus IP have been providing business telephony nationwide for over 30 years.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Exactiveexactive.co.uk HQ: Dunfermline, United KingdomReported employees: 51-200 | Dunfermline, United Kingdom | 51-200 | Exact match | 8 contacts → |
“Exactive’s mission is to deliver results by transforming the way people work.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Integral Communicationsintegralcomm.co.uk HQ: Lichfield, United KingdomReported employees: 1-10 | Lichfield, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Integral Communications is your trusted partner in delivering cutting-edge business telecoms and network services across the UK.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sipaltosipalto.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Sipalto is made up of remarkable individuals who pool their wealth of knowledge, understanding and expertise to deliver an incredible communications experience.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Pneuma Communicationspneumads.com HQ: Hatfield, United KingdomReported employees: 11-50 | Hatfield, United Kingdom | 11-50 | Exact match | 4 contacts → |
“For over a decade we have provided tailored communications solutions to businesses both large and small.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Voicelinx LTDvoicelinx.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Voicelinx are experts in VOIP telecoms.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Voiceflex Limitedvoiceflex.comHQ: Warwickshire, United KingdomReported employees: 11-50 | Warwickshire, United Kingdom | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 |  Everyday Voipeverydayvoip.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 2 contacts → |
“At EveryDay Voip we provide Cloud Based Pbx services for Small, Medium and Large businesses, no matter your requirement or location.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Orbtalk LTDorbtalk.co.uk HQ: Brighton, United KingdomReported employees: 1-10 | Brighton, United Kingdom | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | S3 Communicationss3communications.cloud HQ: Nantwich, United KingdomReported employees: 1-10 | Nantwich, United Kingdom | 1-10 | Exact match | 2 contacts → |
“s3 Communications Ltd was founded as a result of the ever-increasing convergence between IT and Telephony and the fact that in 2025 BT will switch off the traditional ISDN network…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Surevoipsurevoip.co.uk HQ: Aberdeen, United KingdomReported employees: 1-10 | Aberdeen, United Kingdom | 1-10 | Exact match | 1 contacts → |
“SureVoIP is an Ofcom registered Internet Telephony Service Provider supplying hosted VoIP solutions, SIP trunks, Inbound numbers and other related VoIP products and services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 17 of 49 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Enterprise sip trunk providers: dataset insights
September 28, 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
47 records in the displayed employee bands.
2 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 49 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 28, 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 enterprise sip trunk 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 enterprise sip trunk providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 49 matching company records, 334 tracked contacts and 100 verified emails. The public preview displays 17 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 28, 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
Enterprise sip trunk providers by geography
Cite this list
RevenueBase Data Team. Top 17 enterprise sip trunk providers based in the United Kingdom. Snapshot: September 28, 2026. https://revenuebase.ai/companies/enterprise-sip-trunk-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
- Enterprise sip trunk providers based in Canada
- Enterprise sip trunk providers based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
- Media companies based in the United Kingdom
Company intelligence · public preview
Top 17 enterprise sip trunk providers based in the United Kingdom
RevenueBase records 49 matching company records for enterprise sip trunk providers based in the United Kingdom, with 334 tracked contacts and 100 verified work emails.
This public preview shows 17 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 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 17 enterprise sip trunk 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 | Gradwellgradwell.com HQ: Bath, United KingdomReported employees: 51-200 | Bath, United Kingdom | 51-200 | Exact match | 85 contacts → |
“Gradwell Communications Ltd are a leading cloud communications solutions provider with a focus on small to medium-sized businesses (SMEs).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Wavetel Business LTDwavetelbusiness.co.uk HQ: Basildon, United KingdomReported employees: 51-200 | Basildon, United Kingdom | 51-200 | Exact match | 20 contacts → |
“Wavetel is one of the top VoIP Phone System and Telecom Services Providers in the UK.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Birmingham Telecommunications Limitedbirminghamtelecom.co.uk HQ: Coleshill, United KingdomReported employees: 11-50 | Coleshill, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Since 2006, Birmingham Telecom has been helping businesses across the UK with reliable business telecoms, Managed IT Support, Cyber Security and Connectivity Solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | IP Office LTDipofficeltd.co.uk HQ: Exeter, United KingdomReported employees: 11-50 | Exeter, United Kingdom | 11-50 | Exact match | 12 contacts → |
“IP Office Ltd is a leading supplier of business communications and IT services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | MI Telecommi-telecom.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 12 contacts → |
“We connect millions of telephone calls for businesses each year, with our modern cloud technology and easy to use platforms.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | L A Comms LTDlacomms.com HQ: Skipton, United KingdomReported employees: 11-50 | Skipton, United Kingdom | 11-50 | Exact match | 11 contacts → |
“L A Comms is a solutions specialist in Telephone Systems, I.T, Security, SIP Trunking, voice and data connectivity and other Hosted was solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nexus IPnexusip.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Nexus IP have been providing business telephony nationwide for over 30 years.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Exactiveexactive.co.uk HQ: Dunfermline, United KingdomReported employees: 51-200 | Dunfermline, United Kingdom | 51-200 | Exact match | 8 contacts → |
“Exactive’s mission is to deliver results by transforming the way people work.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Integral Communicationsintegralcomm.co.uk HQ: Lichfield, United KingdomReported employees: 1-10 | Lichfield, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Integral Communications is your trusted partner in delivering cutting-edge business telecoms and network services across the UK.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sipaltosipalto.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 4 contacts → |
“Sipalto is made up of remarkable individuals who pool their wealth of knowledge, understanding and expertise to deliver an incredible communications experience.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Pneuma Communicationspneumads.com HQ: Hatfield, United KingdomReported employees: 11-50 | Hatfield, United Kingdom | 11-50 | Exact match | 4 contacts → |
“For over a decade we have provided tailored communications solutions to businesses both large and small.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Voicelinx LTDvoicelinx.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Voicelinx are experts in VOIP telecoms.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Voiceflex Limitedvoiceflex.com HQ: Warwickshire, United KingdomReported employees: 11-50 | Warwickshire, United Kingdom | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 14 | Everyday Voipeverydayvoip.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 2 contacts → |
“At EveryDay Voip we provide Cloud Based Pbx services for Small, Medium and Large businesses, no matter your requirement or location.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Orbtalk LTDorbtalk.co.uk HQ: Brighton, United KingdomReported employees: 1-10 | Brighton, United Kingdom | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | S3 Communicationss3communications.cloud HQ: Nantwich, United KingdomReported employees: 1-10 | Nantwich, United Kingdom | 1-10 | Exact match | 2 contacts → |
“s3 Communications Ltd was founded as a result of the ever-increasing convergence between IT and Telephony and the fact that in 2025 BT will switch off the traditional ISDN network…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Surevoipsurevoip.co.uk HQ: Aberdeen, United KingdomReported employees: 1-10 | Aberdeen, United Kingdom | 1-10 | Exact match | 1 contacts → |
“SureVoIP is an Ofcom registered Internet Telephony Service Provider supplying hosted VoIP solutions, SIP trunks, Inbound numbers and other related VoIP products and services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 17 of 49 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Enterprise sip trunk providers: dataset insights
September 28, 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
47 records in the displayed employee bands.
2 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 49 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 28, 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 enterprise sip trunk 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 enterprise sip trunk providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 49 matching company records, 334 tracked contacts and 100 verified emails. The public preview displays 17 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 28, 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
Enterprise sip trunk providers by geography
Cite this list
RevenueBase Data Team. Top 17 enterprise sip trunk providers based in the United Kingdom. Snapshot: September 28, 2026. https://revenuebase.ai/companies/enterprise-sip-trunk-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
- Enterprise sip trunk providers based in Canada
- Enterprise sip trunk providers based in the United States
- AI companies based in the United Kingdom
- Cybersecurity companies based in the United Kingdom
- Manufacturing companies based in the United Kingdom
- Media companies based in the United Kingdom