Company lists · Data refreshed November 2026
Top 25 Telephony support service companies worldwide
RevenueBase identified 2,397 company matches for telephony support service companies worldwide as of November 2026 and tracks 32,188 professional contacts across them, including 5,528 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for telephony support service companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for telephony support service companies follow the table.
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 telephony support service companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,221 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 1,645 contacts → | ||||
Exact match “Need help?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 1,008 contacts → | ||||
Exact match “A Youtility Center do Brasil faz parte do “Gruppo Distribuzione Spa”, com sede na Itália desde 1998.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 811 contacts → | ||||
Exact match “Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 587 contacts → | ||||
Exact match “teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 513 contacts → | ||||
Exact match “OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 506 contacts → | ||||
Exact match “Telecommunication Installation and Maintenance” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 388 contacts → | ||||
Exact match “Gentel Telecommunication was founded in 2006, for developing work areas and work opinions in telecommunication industry with its strong background and experience over 30 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 337 contacts → | ||||
Exact match “OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 319 contacts → | ||||
Exact match “Empresa de telecomunicações voltada para o seguimento de call center e tecnologia da informação.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 281 contacts → | ||||
Exact match “Gestión telefónica en ingles nativo” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 277 contacts → | ||||
Exact match “Estamos prontos para lhe atender em diversos pontos do país, oferecendo serviços de Contact Center, Telefonia e Tecnologia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 263 contacts → | ||||
Exact match “Koiné is a leader company which works in service industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 244 contacts → | ||||
Exact match “METALINE, c’est une expertise de plus de 35 ans avec plus de utilisateurs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 218 contacts → | ||||
Exact match “For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 177 contacts → | ||||
Exact match “Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 171 contacts → | ||||
Exact match “Tailor-Made Customer Care and Technical Support for Internet, Video, VOIP and Mobile >has highly trained CCNA, CompTIA Network+ support professionals.>perseveres in every…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 163 contacts → | ||||
Exact match “U Iskonu, koji je dio Hrvatskog Telekoma, kreiramo ponude i nudimo zasebnu podršku korisnicima fiksnih telekomunikacijskih usluga.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 153 contacts → | ||||
Exact match “Callpoint bietet Schweizer Call Center Services in den Bereichen Customer Service, Pikettdienst, Helpdesk und Telemarketing an – vor allem für grössere Unternehmen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 129 contacts → | ||||
Exact match “CPT Network Solutions is a national technology services provider helping retailers, senior living organizations, healthcare teams, and other multi-site businesses deploy and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 123 contacts → | ||||
Exact match “DIDWW is a fully licensed telecom operator specializing in two-way Voice and Messaging services in 90+ geographies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 116 contacts → | ||||
Exact match “AnswerPlus is a leading 24/7 telephone answering service trusted by 2,500+ amazing clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 114 contacts → | ||||
Exact match “Outsource, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 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 6, 2026 · View company records in RevenueBase | |||||
| 25 | 84 contacts → | ||||
Exact match “UniTalk - єдине рішення для керування спілкуванням з клієнтами.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “telephony support service companies”. 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 2,397 telephony support service companies worldwide
See the full list, filter by size, metro and specialty, and access 5,528 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telephony support service companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for telephony support service companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “telephony support service companies” 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. 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 5,528 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Telephony support service companies by location
13 lists · largest firstEvery Telephony support service companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Telephony support service companies based in the United States557
- Telephony support service companies based in the United Kingdom196
- Telephony support service companies based in Brazil163
- Telephony support service companies based in France115
- Telephony support service companies based in Germany112
- Telephony support service companies based in Italy93
- Telephony support service companies based in Spain84
- Telephony support service companies based in Canada64
- Telephony support service companies based in Australia48
- Telephony support service companies based in the Netherlands38
- Telephony support service companies based in Sweden25
Cities
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 “telephony support service companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telephony support service companies are there worldwide?
RevenueBase identified 2,397 company matches for telephony support service companies worldwide 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?
Brasil Center Comunicações tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most telephony support service companies?
The United States leads with 557 companies, followed by the United Kingdom (196) and Brazil (163). Every telephony support service companies list by country and city is linked on this page.
Which city has the most telephony support service companies?
Sao Paulo leads with 35 company records, followed by London (34) and Madrid (12).
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 5,528 professional contacts with verified work emails tracked across these 2,397 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,397 telephony support service companies worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 telephony support service companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,397 matching company records for telephony support service companies worldwide, with 32,188 tracked contacts and 5,528 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telephony support service companies worldwide
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 | Brasil Center Comunicaçõesbrasilcenter.com.br HQ: HQ not recordedReported employees: 5,001-10,000 | HQ not recorded | 5,001-10,000 | Exact match | 3,221 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 |  ONE NEW Zealandone.nzHQ: Auckland, New ZealandReported employees: 1,001-5,000 | Auckland, New Zealand | 1,001-5,000 | Exact match | 1,645 contacts → |
“Need help?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Youtility Center DO Brasilyoutilitydobrasil.com.brHQ: Barra Mansa, BrazilReported employees: 1,001-5,000 | Barra Mansa, Brazil | 1,001-5,000 | Exact match | 1,008 contacts → |
“A Youtility Center do Brasil faz parte do “Gruppo Distribuzione Spa”, com sede na Itália desde 1998.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Sequential Technology Internationalsequentialtech.comHQ: Bethlehem, United StatesReported employees: 1,001-5,000 | Bethlehem, United States | 1,001-5,000 | Exact match | 811 contacts → |
“Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Telenetworktelenetwork.comHQ: San Marcos, TX, United StatesReported employees: 1,001-5,000 | San Marcos, TX, United States | 1,001-5,000 | Exact match | 587 contacts → |
“teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Onesupportonesupport.comHQ: San Marcos, TX, United StatesReported employees: 1,001-5,000 | San Marcos, TX, United States | 1,001-5,000 | Exact match | 513 contacts → |
“OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SNIMsnim.fr HQ: FranceReported employees: 51-200 | France | 51-200 | Exact match | 506 contacts → |
“Telecommunication Installation and Maintenance” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Gentel Telekomünikasyon A.Şgentel.com.trHQ: Umraniye, TürkiyeReported employees: 51-200 | Umraniye, Türkiye | 51-200 | Exact match | 388 contacts → |
“Gentel Telecommunication was founded in 2006, for developing work areas and work opinions in telecommunication industry with its strong background and experience over 30 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Outplexoutplex.comHQ: Fort Lauderdale, United StatesReported employees: 1,001-5,000 | Fort Lauderdale, United States | 1,001-5,000 | Exact match | 337 contacts → |
“OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tellus SAtellussa.com.br HQ: BrazilReported employees: 1,001-5,000 | Brazil | 1,001-5,000 | Exact match | 319 contacts → |
“Empresa de telecomunicações voltada para o seguimento de call center e tecnologia da informação.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Contacto Garantidocontactogarantido.comHQ: City Of Buenos Aires, ArgentinaReported employees: 1,001-5,000 | City Of Buenos Aires, Argentina | 1,001-5,000 | Exact match | 281 contacts → |
“Gestión telefónica en ingles nativo” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ITS Customer Serviceitscs.com.brHQ: Santo Amaro Da Imperatriz, BrazilReported employees: 501-1,000 | Santo Amaro Da Imperatriz, Brazil | 501-1,000 | Exact match | 277 contacts → |
“Estamos prontos para lhe atender em diversos pontos do país, oferecendo serviços de Contact Center, Telefonia e Tecnologia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Koiné SRLkoine.ve.itHQ: Maerne, ItalyReported employees: 501-1,000 | Maerne, Italy | 501-1,000 | Exact match | 263 contacts → |
“Koiné is a leader company which works in service industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Metalinemetaline.frHQ: Nanterre, FranceReported employees: 501-1,000 | Nanterre, France | 501-1,000 | Exact match | 244 contacts → |
“METALINE, c’est une expertise de plus de 35 ans avec plus de utilisateurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Vail Systemsvailsys.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 218 contacts → |
“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Call Expertscallexperts.comHQ: Charleston, NC, United StatesReported employees: 51-200 | Charleston, NC, United States | 51-200 | Exact match | 177 contacts → |
“Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Calltek Center Int'l. INCcalltekcenter.comHQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 171 contacts → |
“Tailor-Made Customer Care and Technical Support for Internet, Video, VOIP and Mobile >has highly trained CCNA, CompTIA Network+ support professionals.>perseveres in every…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ISKONiskon.hrHQ: Zagreb, CroatiaReported employees: 51-200 | Zagreb, Croatia | 51-200 | Exact match | 163 contacts → |
“U Iskonu, koji je dio Hrvatskog Telekoma, kreiramo ponude i nudimo zasebnu podršku korisnicima fiksnih telekomunikacijskih usluga.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Callpoint AGcallpoint.chHQ: Basel, SwitzerlandReported employees: 501-1,000 | Basel, Switzerland | 501-1,000 | Exact match | 153 contacts → |
“Callpoint bietet Schweizer Call Center Services in den Bereichen Customer Service, Pikettdienst, Helpdesk und Telemarketing an – vor allem für grössere Unternehmen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  CPT Network Solutionscptnetworks.comHQ: Wood Dale, IL, United StatesReported employees: 51-200 | Wood Dale, IL, United States | 51-200 | Exact match | 129 contacts → |
“CPT Network Solutions is a national technology services provider helping retailers, senior living organizations, healthcare teams, and other multi-site businesses deploy and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  DIDWWdidww.comHQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 123 contacts → |
“DIDWW is a fully licensed telecom operator specializing in two-way Voice and Messaging services in 90+ geographies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Answerplusanswerplus.caHQ: Hamilton, ON, CanadaReported employees: 201-500 | Hamilton, ON, Canada | 201-500 | Exact match | 116 contacts → |
“AnswerPlus is a leading 24/7 telephone answering service trusted by 2,500+ amazing clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Outsourceoutsource-inc.comHQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 114 contacts → |
“Outsource, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Unitalkunitalk.cloudHQ: Kyiv, UkraineReported employees: 11-50 | Kyiv, Ukraine | 11-50 | Exact match | 84 contacts → |
“UniTalk - єдине рішення для керування спілкуванням з клієнтами.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,397 company matches
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Telephony support service companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,361 records in the displayed employee bands.
36 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,397 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telephony support service companies by location
13 lists · largest firstEvery Telephony support service companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Telephony support service companies based in the United States557
- Telephony support service companies based in the United Kingdom196
- Telephony support service companies based in Brazil163
- Telephony support service companies based in France115
- Telephony support service companies based in Germany112
- Telephony support service companies based in Italy93
- Telephony support service companies based in Spain84
- Telephony support service companies based in Canada64
- Telephony support service companies based in Australia48
- Telephony support service companies based in the Netherlands38
- Telephony support service companies based in Sweden25
Cities
Questions about this company list
What does Exact match mean for telephony support service companies?
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 telephony support service companies did RevenueBase find worldwide?
The saved snapshot records 2,397 matching company records, 32,188 tracked contacts and 5,528 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 telephony support service companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/telephony-support-service-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 telephony support service companies worldwide
RevenueBase records 2,397 matching company records for telephony support service companies worldwide, with 32,188 tracked contacts and 5,528 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telephony support service companies worldwide
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 | Brasil Center Comunicaçõesbrasilcenter.com.br HQ: HQ not recordedReported employees: 5,001-10,000 | HQ not recorded | 5,001-10,000 | Exact match | 3,221 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 2 | ONE NEW Zealandone.nz HQ: Auckland, New ZealandReported employees: 1,001-5,000 | Auckland, New Zealand | 1,001-5,000 | Exact match | 1,645 contacts → |
“Need help?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Youtility Center DO Brasilyoutilitydobrasil.com.br HQ: Barra Mansa, BrazilReported employees: 1,001-5,000 | Barra Mansa, Brazil | 1,001-5,000 | Exact match | 1,008 contacts → |
“A Youtility Center do Brasil faz parte do “Gruppo Distribuzione Spa”, com sede na Itália desde 1998.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sequential Technology Internationalsequentialtech.com HQ: Bethlehem, United StatesReported employees: 1,001-5,000 | Bethlehem, United States | 1,001-5,000 | Exact match | 811 contacts → |
“Sequential Tech is the trusted outsource partner of wireline/wireless telecommunication, broadband, cable/MSO, and satellite service providers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Telenetworktelenetwork.com HQ: San Marcos, TX, United StatesReported employees: 1,001-5,000 | San Marcos, TX, United States | 1,001-5,000 | Exact match | 587 contacts → |
“teleNetwork is a leading provider of outsourced customer service, technical support, and sales enablement solutions for technology products and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Onesupportonesupport.com HQ: San Marcos, TX, United StatesReported employees: 1,001-5,000 | San Marcos, TX, United States | 1,001-5,000 | Exact match | 513 contacts → |
“OneSupport is a leading provider of customer experience, technical support, and sales enablement solutions for technology products and services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SNIMsnim.fr HQ: FranceReported employees: 51-200 | France | 51-200 | Exact match | 506 contacts → |
“Telecommunication Installation and Maintenance” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Gentel Telekomünikasyon A.Şgentel.com.tr HQ: Umraniye, TürkiyeReported employees: 51-200 | Umraniye, Türkiye | 51-200 | Exact match | 388 contacts → |
“Gentel Telecommunication was founded in 2006, for developing work areas and work opinions in telecommunication industry with its strong background and experience over 30 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Outplexoutplex.com HQ: Fort Lauderdale, United StatesReported employees: 1,001-5,000 | Fort Lauderdale, United States | 1,001-5,000 | Exact match | 337 contacts → |
“OutPLEX is a leading international digital and voice customer contact management services organization developing solutions for the world's most trusted brands.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tellus SAtellussa.com.br HQ: BrazilReported employees: 1,001-5,000 | Brazil | 1,001-5,000 | Exact match | 319 contacts → |
“Empresa de telecomunicações voltada para o seguimento de call center e tecnologia da informação.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Contacto Garantidocontactogarantido.com HQ: City Of Buenos Aires, ArgentinaReported employees: 1,001-5,000 | City Of Buenos Aires, Argentina | 1,001-5,000 | Exact match | 281 contacts → |
“Gestión telefónica en ingles nativo” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ITS Customer Serviceitscs.com.br HQ: Santo Amaro Da Imperatriz, BrazilReported employees: 501-1,000 | Santo Amaro Da Imperatriz, Brazil | 501-1,000 | Exact match | 277 contacts → |
“Estamos prontos para lhe atender em diversos pontos do país, oferecendo serviços de Contact Center, Telefonia e Tecnologia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Koiné SRLkoine.ve.it HQ: Maerne, ItalyReported employees: 501-1,000 | Maerne, Italy | 501-1,000 | Exact match | 263 contacts → |
“Koiné is a leader company which works in service industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Metalinemetaline.fr HQ: Nanterre, FranceReported employees: 501-1,000 | Nanterre, France | 501-1,000 | Exact match | 244 contacts → |
“METALINE, c’est une expertise de plus de 35 ans avec plus de utilisateurs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vail Systemsvailsys.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 218 contacts → |
“For over thirty years, Fortune 500 companies in financial services, retail and hospitality, software, and wireless communications industries have relied on Vail Systems’…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Call Expertscallexperts.com HQ: Charleston, NC, United StatesReported employees: 51-200 | Charleston, NC, United States | 51-200 | Exact match | 177 contacts → |
“Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Calltek Center Int'l. INCcalltekcenter.com HQ: United StatesReported employees: 501-1,000 | United States | 501-1,000 | Exact match | 171 contacts → |
“Tailor-Made Customer Care and Technical Support for Internet, Video, VOIP and Mobile >has highly trained CCNA, CompTIA Network+ support professionals.>perseveres in every…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ISKONiskon.hr HQ: Zagreb, CroatiaReported employees: 51-200 | Zagreb, Croatia | 51-200 | Exact match | 163 contacts → |
“U Iskonu, koji je dio Hrvatskog Telekoma, kreiramo ponude i nudimo zasebnu podršku korisnicima fiksnih telekomunikacijskih usluga.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Callpoint AGcallpoint.ch HQ: Basel, SwitzerlandReported employees: 501-1,000 | Basel, Switzerland | 501-1,000 | Exact match | 153 contacts → |
“Callpoint bietet Schweizer Call Center Services in den Bereichen Customer Service, Pikettdienst, Helpdesk und Telemarketing an – vor allem für grössere Unternehmen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | CPT Network Solutionscptnetworks.com HQ: Wood Dale, IL, United StatesReported employees: 51-200 | Wood Dale, IL, United States | 51-200 | Exact match | 129 contacts → |
“CPT Network Solutions is a national technology services provider helping retailers, senior living organizations, healthcare teams, and other multi-site businesses deploy and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | DIDWWdidww.com HQ: Dublin, IrelandReported employees: 51-200 | Dublin, Ireland | 51-200 | Exact match | 123 contacts → |
“DIDWW is a fully licensed telecom operator specializing in two-way Voice and Messaging services in 90+ geographies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Answerplusanswerplus.ca HQ: Hamilton, ON, CanadaReported employees: 201-500 | Hamilton, ON, Canada | 201-500 | Exact match | 116 contacts → |
“AnswerPlus is a leading 24/7 telephone answering service trusted by 2,500+ amazing clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Outsourceoutsource-inc.com HQ: Longwood, FL, United StatesReported employees: 201-500 | Longwood, FL, United States | 201-500 | Exact match | 114 contacts → |
“Outsource, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 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 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Unitalkunitalk.cloud HQ: Kyiv, UkraineReported employees: 11-50 | Kyiv, Ukraine | 11-50 | Exact match | 84 contacts → |
“UniTalk - єдине рішення для керування спілкуванням з клієнтами.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Telephony support service companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,361 records in the displayed employee bands.
36 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,397 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telephony support service companies by location
13 lists · largest firstEvery Telephony support service companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Telephony support service companies based in the United States557
- Telephony support service companies based in the United Kingdom196
- Telephony support service companies based in Brazil163
- Telephony support service companies based in France115
- Telephony support service companies based in Germany112
- Telephony support service companies based in Italy93
- Telephony support service companies based in Spain84
- Telephony support service companies based in Canada64
- Telephony support service companies based in Australia48
- Telephony support service companies based in the Netherlands38
- Telephony support service companies based in Sweden25
Cities
Questions about this company list
What does Exact match mean for telephony support service companies?
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 telephony support service companies did RevenueBase find worldwide?
The saved snapshot records 2,397 matching company records, 32,188 tracked contacts and 5,528 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 telephony support service companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/telephony-support-service-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗