Company lists · Data refreshed November 2026
Top 25 Telecom services providers for call centers based in the United Kingdom
RevenueBase identified 855 company matches for telecom services providers for call centers associated with the United Kingdom as of November 2026 and tracks 17,516 professional contacts across them, including 4,868 with verified work emails. London is the largest hub.
This list covers company matches for telecom services providers for call centers 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 5, 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 services providers for call centers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,631 contacts → | ||||
Exact match “Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 715 contacts → | ||||
Exact match “Onecom is the UK’s leading business telecoms and cloud communications provider managing over a million services for business customers - delivering communication services and…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 548 contacts → | ||||
Exact match “Moneypenny is the leading customer conversations partner to businesses across the UK and US, blending exceptional people with proprietary AI technology to deliver trusted caller…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 537 contacts → | ||||
Exact match “Give your customers a voice with ResQ.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 358 contacts → | ||||
Exact match “Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 347 contacts → | ||||
Exact match “Skilled talent, proven processes and leading technology.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 280 contacts → | ||||
Exact match “The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 211 contacts → | ||||
Exact match “Aerial Direct are an award-winning, UK-based, managed communications expert.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 205 contacts → | ||||
Exact match “Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 185 contacts → | ||||
Exact match “At BT Local Business London West & South we are part of BT's Business division.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 169 contacts → | ||||
Exact match “Partner with the UK's largest independent managed service provider If you are looking for next level managed services wrapped with outstanding customer experience you have come to…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 154 contacts → | ||||
Exact match “Great technology matters, but it’s great people who make it work.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 151 contacts → | ||||
Exact match “Exceptional Customer Contact.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 148 contacts → | ||||
Exact match “Dedicated and shared contact centre outsourcing operations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 146 contacts → | ||||
Exact match “Echoing our clients in every conversation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 122 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 119 contacts → | ||||
Exact match “Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 112 contacts → | ||||
Exact match “Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 110 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 89 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 83 contacts → | ||||
Exact match “Our business is your business.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 83 contacts → | ||||
Exact match “With a broad experience in the industry, Speedflow is in the best position to provide you with products and services proven by time to be effective.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 82 contacts → | ||||
Exact match “We are FM Outsource, a modern customer service outsourcer.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 81 contacts → | ||||
Exact match “Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 70 contacts → | ||||
Exact match “Telappliant is an award-winning VoIP and cloud communications provider.” Recorded in the RevenueBase company graph · Nov 5, 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 services providers for call centers”. 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 855 telecom services providers for call centers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 4,868 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telecom services providers for call centers based in the United Kingdom at a glance
As of Nov 5, 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 855 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 services providers for call centers” 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 4,868 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 5, 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.
Telecom services providers for call centers 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 “telecom services providers for call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telecom services providers for call centers are there based in the United Kingdom?
RevenueBase identified 855 company matches for telecom services providers for call centers 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?
GAMMA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most telecom services providers for call centers?
London leads with 150 company records, followed by Manchester (26) and Birmingham (20).
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 4,868 professional contacts with verified work emails tracked across these 855 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 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 855 telecom services providers for call centers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Telecom services providers for call centers by geography
- Telecom services providers for call centers based in Buenos Aires, Argentina
- Telecom services providers for call centers based in Melbourne, Australia
- Telecom services providers for call centers based in Sydney, Australia
- Telecom services providers for call centers based in Belo Horizonte, Brazil
- Telecom services providers for call centers based in Curitiba, Brazil
- Telecom services providers for call centers based in Rio De Janeiro, Brazil
- Telecom services providers for call centers based in Sao Paulo, Brazil
- Telecom services providers for call centers based in Montreal, Canada
- Telecom services providers for call centers based in Toronto, Canada
- Telecom services providers for call centers based in Santiago, Chile
- Telecom services providers for call centers based in Bogota, Colombia
- Telecom services providers for call centers based in Paris, France
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 services providers for call centers based in Buenos Aires, Argentina
- Telecom services providers for call centers based in Melbourne, Australia
- Telecom services providers for call centers based in Sydney, Australia
- Telecom services providers for call centers based in Belo Horizonte, Brazil
- Telecom services providers for call centers based in Curitiba, Brazil
- Telecom services providers for call centers based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 telecom services providers for call centers 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 855 matching company records for telecom services providers for call centers based in the United Kingdom, with 17,516 tracked contacts and 4,868 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 5, 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 services providers for call centers 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 |  GAMMAgammagroup.coHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,631 contacts → |
“Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Onecomonecom.co.ukHQ: Fareham, United KingdomReported employees: 501-1,000 | Fareham, United Kingdom | 501-1,000 | Exact match | 715 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Moneypennymoneypenny.comHQ: Wrexham, United KingdomReported employees: 1,001-5,000 | Wrexham, United Kingdom | 1,001-5,000 | Exact match | 548 contacts → |
“Moneypenny is the leading customer conversations partner to businesses across the UK and US, blending exceptional people with proprietary AI technology to deliver trusted caller…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  RESQresqcs.co.ukHQ: Kingston Upon Hull, United KingdomReported employees: 1,001-5,000 | Kingston Upon Hull, United Kingdom | 1,001-5,000 | Exact match | 537 contacts → |
“Give your customers a voice with ResQ.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  The Contact Companythecontactcompany.co.ukHQ: Birkenhead, United KingdomReported employees: 1,001-5,000 | Birkenhead, United Kingdom | 1,001-5,000 | Exact match | 358 contacts → |
“Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ANT Marketingantmarketing.comHQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 347 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  The Telemarketing Companyttmc.co.ukHQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 280 contacts → |
“The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Aerial Directaerial-direct.co.ukHQ: Portsmouth, United KingdomReported employees: 201-500 | Portsmouth, United Kingdom | 201-500 | Exact match | 211 contacts → |
“Aerial Direct are an award-winning, UK-based, managed communications expert.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Clearanswer Call Centresclearanswer.co.ukHQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 205 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  BT Local Businessbt.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 185 contacts → |
“At BT Local Business London West & South we are part of BT's Business division.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Opus Technologyopustech.co.ukHQ: Reigate, United KingdomReported employees: 51-200 | Reigate, United Kingdom | 51-200 | Exact match | 169 contacts → |
“Partner with the UK's largest independent managed service provider If you are looking for next level managed services wrapped with outstanding customer experience you have come to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Elite Groupelitegroup.comHQ: Chorley, United KingdomReported employees: 51-200 | Chorley, United Kingdom | 51-200 | Exact match | 154 contacts → |
“Great technology matters, but it’s great people who make it work.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  IP Integrationipintegration.comHQ: Pincents Lane, United KingdomReported employees: 51-200 | Pincents Lane, United Kingdom | 51-200 | Exact match | 151 contacts → |
“Exceptional Customer Contact.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  We ARE Wovenwearewoven.comHQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 148 contacts → |
“Dedicated and shared contact centre outsourcing operations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Echo-U LTDecho-u.co.ukHQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 146 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tela Technologytelatechnology.comHQ: Hampton-in-arden, United KingdomReported employees: 51-200 | Hampton-in-arden, United Kingdom | 51-200 | Exact match | 122 contacts → |
“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Radius Connect Solutionsradius.comHQ: Crewe, United KingdomReported employees: 201-500 | Crewe, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  YO Telecomyotelecom.co.ukHQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 112 contacts → |
“Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Spitfire Network Services LTDspitfire.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 110 contacts → |
“Spitfire Network Services is a UK-based, multi-award winning telecoms and ISP provider for businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Rydal Grouprydalgroup.co.ukHQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 89 contacts → |
“Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Tchgrouptchgroup.ukHQ: Glamorgan, United KingdomReported employees: 201-500 | Glamorgan, United Kingdom | 201-500 | Exact match | 83 contacts → |
“Our business is your business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Speedflowspeedflow.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 83 contacts → |
“With a broad experience in the industry, Speedflow is in the best position to provide you with products and services proven by time to be effective.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  FM Outsourcefmoutsource.comHQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 82 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  ICS Communicationsicscomms.co.ukHQ: Camberley, United KingdomReported employees: 11-50 | Camberley, United Kingdom | 11-50 | Exact match | 81 contacts → |
“Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  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 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 855 company matches
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Telecom services providers for call centers: dataset insights
November 5, 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
842 records in the displayed employee bands.
13 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 855 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 5, 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 ↗
Telecom services providers for call centers by metro
Questions about this company list
What does Exact match mean for telecom services providers for call centers?
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 services providers for call centers did RevenueBase find based in the United Kingdom?
The saved snapshot records 855 matching company records, 17,516 tracked contacts and 4,868 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 5, 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 services providers for call centers by geography
- Telecom services providers for call centers based in Buenos Aires, Argentina
- Telecom services providers for call centers based in Melbourne, Australia
- Telecom services providers for call centers based in Sydney, Australia
- Telecom services providers for call centers based in Belo Horizonte, Brazil
- Telecom services providers for call centers based in Curitiba, Brazil
- Telecom services providers for call centers based in Rio De Janeiro, Brazil
- Telecom services providers for call centers based in Sao Paulo, Brazil
- Telecom services providers for call centers based in Montreal, Canada
- Telecom services providers for call centers based in Toronto, Canada
- Telecom services providers for call centers based in Santiago, Chile
- Telecom services providers for call centers based in Bogota, Colombia
- Telecom services providers for call centers based in Paris, France
Cite this list
RevenueBase Data Team. Top 25 telecom services providers for call centers based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/telecom-services-providers-for-call-centers/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 services providers for call centers based in Buenos Aires, Argentina
- Telecom services providers for call centers based in Melbourne, Australia
- Telecom services providers for call centers based in Sydney, Australia
- Telecom services providers for call centers based in Belo Horizonte, Brazil
- Telecom services providers for call centers based in Curitiba, Brazil
- Telecom services providers for call centers based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 25 telecom services providers for call centers based in the United Kingdom
RevenueBase records 855 matching company records for telecom services providers for call centers based in the United Kingdom, with 17,516 tracked contacts and 4,868 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 5, 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 services providers for call centers 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 | GAMMAgammagroup.co HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 1,631 contacts → |
“Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Onecomonecom.co.uk HQ: Fareham, United KingdomReported employees: 501-1,000 | Fareham, United Kingdom | 501-1,000 | Exact match | 715 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Moneypennymoneypenny.com HQ: Wrexham, United KingdomReported employees: 1,001-5,000 | Wrexham, United Kingdom | 1,001-5,000 | Exact match | 548 contacts → |
“Moneypenny is the leading customer conversations partner to businesses across the UK and US, blending exceptional people with proprietary AI technology to deliver trusted caller…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | RESQresqcs.co.uk HQ: Kingston Upon Hull, United KingdomReported employees: 1,001-5,000 | Kingston Upon Hull, United Kingdom | 1,001-5,000 | Exact match | 537 contacts → |
“Give your customers a voice with ResQ.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | The Contact Companythecontactcompany.co.uk HQ: Birkenhead, United KingdomReported employees: 1,001-5,000 | Birkenhead, United Kingdom | 1,001-5,000 | Exact match | 358 contacts → |
“Here at The Contact Company, we add value for clients, working as trusted partners to manage and develop their customer contact processes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ANT Marketingantmarketing.com HQ: Sheffield, United KingdomReported employees: 501-1,000 | Sheffield, United Kingdom | 501-1,000 | Exact match | 347 contacts → |
“Skilled talent, proven processes and leading technology.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | The Telemarketing Companyttmc.co.uk HQ: Brighton, United KingdomReported employees: 201-500 | Brighton, United Kingdom | 201-500 | Exact match | 280 contacts → |
“The Telemarketing Company is one of the UK's most trusted telemarketing agencies, delivering flexible, high-quality voice services, including pre and post sales research…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Aerial Directaerial-direct.co.uk HQ: Portsmouth, United KingdomReported employees: 201-500 | Portsmouth, United Kingdom | 201-500 | Exact match | 211 contacts → |
“Aerial Direct are an award-winning, UK-based, managed communications expert.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Clearanswer Call Centresclearanswer.co.uk HQ: Hull, United KingdomReported employees: 501-1,000 | Hull, United Kingdom | 501-1,000 | Exact match | 205 contacts → |
“Established since 1998 Clearanswer is an expert provider of contact centre solutions.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | BT Local Businessbt.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 185 contacts → |
“At BT Local Business London West & South we are part of BT's Business division.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Opus Technologyopustech.co.uk HQ: Reigate, United KingdomReported employees: 51-200 | Reigate, United Kingdom | 51-200 | Exact match | 169 contacts → |
“Partner with the UK's largest independent managed service provider If you are looking for next level managed services wrapped with outstanding customer experience you have come to…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Elite Groupelitegroup.com HQ: Chorley, United KingdomReported employees: 51-200 | Chorley, United Kingdom | 51-200 | Exact match | 154 contacts → |
“Great technology matters, but it’s great people who make it work.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | IP Integrationipintegration.com HQ: Pincents Lane, United KingdomReported employees: 51-200 | Pincents Lane, United Kingdom | 51-200 | Exact match | 151 contacts → |
“Exceptional Customer Contact.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | We ARE Wovenwearewoven.com HQ: Bristol, United KingdomReported employees: 1,001-5,000 | Bristol, United Kingdom | 1,001-5,000 | Exact match | 148 contacts → |
“Dedicated and shared contact centre outsourcing operations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Echo-U LTDecho-u.co.uk HQ: Newcastle Upon Tyne, United KingdomReported employees: 201-500 | Newcastle Upon Tyne, United Kingdom | 201-500 | Exact match | 146 contacts → |
“Echoing our clients in every conversation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tela Technologytelatechnology.com HQ: Hampton-in-arden, United KingdomReported employees: 51-200 | Hampton-in-arden, United Kingdom | 51-200 | Exact match | 122 contacts → |
“We provide communication solutions and IT business services to businesses, big and small, to help your business grow.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Radius Connect Solutionsradius.com HQ: Crewe, United KingdomReported employees: 201-500 | Crewe, United Kingdom | 201-500 | Exact match | 119 contacts → |
“Radius Connect Solutions is an award-winning independent “total communications” solution provider.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | YO Telecomyotelecom.co.uk HQ: Southampton, United KingdomReported employees: 51-200 | Southampton, United Kingdom | 51-200 | Exact match | 112 contacts → |
“Yo Telecom is an award winning telecommunications provider that specialises in small to medium sized businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Spitfire Network Services LTDspitfire.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 110 contacts → |
“Spitfire Network Services is a UK-based, multi-award winning telecoms and ISP provider for businesses.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Rydal Grouprydalgroup.co.uk HQ: Peterborough, United KingdomReported employees: 51-200 | Peterborough, United Kingdom | 51-200 | Exact match | 89 contacts → |
“Rydal Group is the brand name of Rydal Communications LTD, Rydal Security LTD & Rydal Energy LTD.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Tchgrouptchgroup.uk HQ: Glamorgan, United KingdomReported employees: 201-500 | Glamorgan, United Kingdom | 201-500 | Exact match | 83 contacts → |
“Our business is your business.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Speedflowspeedflow.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 83 contacts → |
“With a broad experience in the industry, Speedflow is in the best position to provide you with products and services proven by time to be effective.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | FM Outsourcefmoutsource.com HQ: Bury, United KingdomReported employees: 201-500 | Bury, United Kingdom | 201-500 | Exact match | 82 contacts → |
“We are FM Outsource, a modern customer service outsourcer.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | ICS Communicationsicscomms.co.uk HQ: Camberley, United KingdomReported employees: 11-50 | Camberley, United Kingdom | 11-50 | Exact match | 81 contacts → |
“Contact an expert now: 0800 9 77 88 99 Specialists in providing businesses with telecoms, data and energy since 1989.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | 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 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 855 company matches
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Telecom services providers for call centers: dataset insights
November 5, 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
842 records in the displayed employee bands.
13 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 855 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 5, 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 ↗
Telecom services providers for call centers by metro
Questions about this company list
What does Exact match mean for telecom services providers for call centers?
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 services providers for call centers did RevenueBase find based in the United Kingdom?
The saved snapshot records 855 matching company records, 17,516 tracked contacts and 4,868 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 5, 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 services providers for call centers by geography
- Telecom services providers for call centers based in Buenos Aires, Argentina
- Telecom services providers for call centers based in Melbourne, Australia
- Telecom services providers for call centers based in Sydney, Australia
- Telecom services providers for call centers based in Belo Horizonte, Brazil
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- Telecom services providers for call centers based in Rio De Janeiro, Brazil
- Telecom services providers for call centers based in Sao Paulo, Brazil
- Telecom services providers for call centers based in Montreal, Canada
- Telecom services providers for call centers based in Toronto, Canada
- Telecom services providers for call centers based in Santiago, Chile
- Telecom services providers for call centers based in Bogota, Colombia
- Telecom services providers for call centers based in Paris, France
Cite this list
RevenueBase Data Team. Top 25 telecom services providers for call centers based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/telecom-services-providers-for-call-centers/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 services providers for call centers based in Buenos Aires, Argentina
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