Company lists · Data refreshed September 2026
Top 25 Telecommunications providers based in Madrid, Spain
RevenueBase identified 140 company matches for telecommunications providers associated with Madrid, Spain as of September 2026 and tracks 61,091 professional contacts across them, including 6,349 with verified work emails. Across Spain, Madrid is the largest hub for this category.
This list covers company matches for telecommunications providers associated with Madrid, Spain, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest telecommunications providers based in Madrid, Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 54,718 contacts → | ||||
Exact match “Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 698 contacts → | ||||
Exact match “Somos Avatel Telecom, compañía de telecomunicaciones en España.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 613 contacts → | ||||
Exact match “Vodafone España es una empresa de telecomunicaciones con más de 15 millones de clientes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 294 contacts → | ||||
Exact match “As the world’s needs for uninterrupted global interconnectivity continue to rise, we are preparing the road ahead.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 184 contacts → | ||||
Exact match “Quiénes somos?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 88 contacts → | ||||
Exact match “Coyser S.A.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 72 contacts → | ||||
Exact match “Premium Numbers, operador de telecomunicaciones inscrito en la CMT y con numeración propia, fue fundada en el año 2.001, siendo una de las empresas del sector de la telefonía de…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 66 contacts → | ||||
Exact match “La misión de Huawei se basa en su propósito de enriquecer la vida a través de la comunicación.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 55 contacts → | ||||
Exact match “SODITEL NUEVO PARTNER TECNOLÓGICO DE AASTRA EN ESPAÑA El gran nivel profesional y su avalada y reconocida garantía en la prestación de servicios profesionales, han convertido a…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 46 contacts → | ||||
Exact match “For the past 24 years, we have been offering telecommunication services over backbone network infrastructures, circuits, VPN.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 41 contacts → | ||||
Exact match “Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 32 contacts → | ||||
Exact match “At Olin Group we are experts in telecommunications services in the regional market; both for wholesalers, with our high-speed Olinfra network, and for retailers through the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 26 contacts → | ||||
Exact match “SCT Telecom, S.A, 30 años dedicados a la distribución de productos y accesorios complementarios en el entorno de las comunicaciones fijas y móviles, ocupando un puesto relevante…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 26 contacts → | ||||
Exact match “We are a leading provider of Telecommunications services for large companies, SMEs, self-employed professionals, and individuals.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 22 contacts → | ||||
Exact match “Desde 1989, en TECNIMART estamos dedicados al desarrollo de proyectos de telecomunicaciones dentro y fuera de España en los sectores de Sanidad Hospitales, Seguros, Automoción y…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 18 contacts → | ||||
Exact match “Con una trayectoria de más de 30 años y una dilatada y sólida experiencia en el sector de las Telecomunicaciones, Hiper Antena ofrece al profesional todo los productos con la…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Balesia Technologies Inc, part of the Balesia group, an American company with more than 40 years of experience and telecommunications management experience in more than 60…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 10 contacts → | ||||
Exact match “Mintt es el operador de telecomunicaciones (licencia de la CMT) especializado en servicios para empresas, que automatizan los procesos de atención de sus usuarios.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match “Tel Telecomunicaciones es una de las empresas más importantes y cualificadas para prestar servicios en el campo de las telecomunicaciones.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “Lineox es una compañía creada por Asterion Industrial Partners - firma de inversión independiente - tras adquirir toda la red de radioenlaces de Telefónica en España.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “Servicio Integral de Comunicaciones Soluciones de Telefonía Móvil Planes claros Tarifas únicas Sin Permanencia Soluciones de Centralita Virtual Voz IP con la máxima calidad y…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “DOS4SIETE TELECOM | Centralita Virtual Pymes, CallBots, fija, móvil e internet.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “Somos un Proveedor Tecnológico con más de 25 años de experiencia en el sector de las telecomunicaciones, formado por un equipo multidisciplinar, experto en adaptarse a las…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Iberfibra e Iberfibra Fibra Óptica son marcas comerciales registradas de Iberfibra Gestión de Redes de Banda Ancha S.A.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “telecommunications providers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 140 telecommunications providers based in Madrid, Spain
See the full list, filter by size, metro and specialty, and access 6,349 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Telecommunications providers based in Madrid, Spain at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured across the whole Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 140 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 Madrid, Spain whose business descriptions match “telecommunications providers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 6,349 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Telecommunications providers by metro in Spain
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 “telecommunications providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many telecommunications providers are there based in Madrid, Spain?
RevenueBase identified 140 company matches for telecommunications providers associated with Madrid, Spain as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Telefónica tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in Spain has the most telecommunications providers?
Madrid leads Spain with 140 company records, followed by Barcelona (61) and Murcia (28).
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 6,349 professional contacts with verified work emails tracked across these 140 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 140 telecommunications providers based in Madrid, Spain. Start with a free account, no credit card.
Download this list →Related lists
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- Telecommunications providers based in Montreal, Canada
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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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Telecommunications providers based in Brisbane, Australia
- Telecommunications providers based in Melbourne, Australia
- Telecommunications providers based in Sydney, Australia
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Company intelligence · public preview
Top 25 telecommunications providers based in Madrid, Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 140 matching company records for telecommunications providers based in Madrid, Spain, with 61,091 tracked contacts and 6,349 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telecommunications providers based in Madrid, Spain
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 |  Telefónicatelefonica.comHQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 54,718 contacts → |
“Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Avatel Telecomavatel.esHQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 698 contacts → |
“Somos Avatel Telecom, compañía de telecomunicaciones en España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Vodafone Españavodafone.esHQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 613 contacts → |
“Vodafone España es una empresa de telecomunicaciones con más de 15 millones de clientes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Telxiustelxius.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 294 contacts → |
“As the world’s needs for uninterrupted global interconnectivity continue to rise, we are preparing the road ahead.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Telyco Seleccióntelyco-grupotelefonica.ofertas-trabajo.infojobs.netHQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 184 contacts → |
“Quiénes somos?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Coyser SAcoyser.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  B2comb2com.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 72 contacts → |
“Premium Numbers, operador de telecomunicaciones inscrito en la CMT y con numeración propia, fue fundada en el año 2.001, siendo una de las empresas del sector de la telefonía de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Huawei CBG Españaconsumer.huawei.comHQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 66 contacts → |
“La misión de Huawei se basa en su propósito de enriquecer la vida a través de la comunicación.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Soditelsoditel.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 55 contacts → |
“SODITEL NUEVO PARTNER TECNOLÓGICO DE AASTRA EN ESPAÑA El gran nivel profesional y su avalada y reconocida garantía en la prestación de servicios profesionales, han convertido a…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Correos Telecom, S.Acorreostelecom.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 46 contacts → |
“For the past 24 years, we have been offering telecommunication services over backbone network infrastructures, circuits, VPN.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Silbö Telecomsilbotelecom.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 41 contacts → |
“Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Olin Groupolingroup.esHQ: Madrid, SpainReported employees: Not recorded | Madrid, Spain | Not recorded | Exact match | 32 contacts → |
“At Olin Group we are experts in telecommunications services in the regional market; both for wholesalers, with our high-speed Olinfra network, and for retailers through the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | SCT Telecomsct.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 26 contacts → |
“SCT Telecom, S.A, 30 años dedicados a la distribución de productos y accesorios complementarios en el entorno de las comunicaciones fijas y móviles, ocupando un puesto relevante…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Smartgroupsmartgroup.esHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 26 contacts → |
“We are a leading provider of Telecommunications services for large companies, SMEs, self-employed professionals, and individuals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Tecnimart Comunicacionestecnimart.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 22 contacts → |
“Desde 1989, en TECNIMART estamos dedicados al desarrollo de proyectos de telecomunicaciones dentro y fuera de España en los sectores de Sanidad Hospitales, Seguros, Automoción y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Hiper Antenahiperantena.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 18 contacts → |
“Con una trayectoria de más de 30 años y una dilatada y sólida experiencia en el sector de las Telecomunicaciones, Hiper Antena ofrece al profesional todo los productos con la…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Balesia Technologies, INCbalesia.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 13 contacts → |
“Balesia Technologies Inc, part of the Balesia group, an American company with more than 40 years of experience and telecommunications management experience in more than 60…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  MINTTmintt.esHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 10 contacts → |
“Mintt es el operador de telecomunicaciones (licencia de la CMT) especializado en servicios para empresas, que automatizan los procesos de atención de sus usuarios.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  TEL Iberica SAteltelecom.com.brHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 10 contacts → |
“Tel Telecomunicaciones es una de las empresas más importantes y cualificadas para prestar servicios en el campo de las telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Lineoxlineox.esHQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 9 contacts → |
“Lineox es una compañía creada por Asterion Industrial Partners - firma de inversión independiente - tras adquirir toda la red de radioenlaces de Telefónica en España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Elantaelanta.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | HQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 5 contacts → |
“Servicio Integral de Comunicaciones Soluciones de Telefonía Móvil Planes claros Tarifas únicas Sin Permanencia Soluciones de Centralita Virtual Voz IP con la máxima calidad y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Dos4siete Telecomdos4siete.comHQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 4 contacts → |
“DOS4SIETE TELECOM | Centralita Virtual Pymes, CallBots, fija, móvil e internet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NOVAnova.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 3 contacts → |
“Somos un Proveedor Tecnológico con más de 25 años de experiencia en el sector de las telecomunicaciones, formado por un equipo multidisciplinar, experto en adaptarse a las…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Iberfibra Fibra Ópticaiberfibra.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 3 contacts → |
“Iberfibra e Iberfibra Fibra Óptica son marcas comerciales registradas de Iberfibra Gestión de Redes de Banda Ancha S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 140 company matches
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Telecommunications providers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
139 records in the displayed employee bands.
1 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 Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 140 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telecommunications providers by metro in Spain
Questions about this company list
What does Exact match mean for telecommunications providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telecommunications providers did RevenueBase find based in Madrid, Spain?
The saved snapshot records 140 matching company records, 61,091 tracked contacts and 6,349 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Telecommunications providers by geography
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- Telecommunications providers based in Curitiba, Brazil
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- Telecommunications providers based in Rio De Janeiro, Brazil
- Telecommunications providers based in Sao Paulo, Brazil
- Telecommunications providers based in Calgary, Canada
- Telecommunications providers based in Mississauga, Canada
- Telecommunications providers based in Montreal, Canada
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Cite this list
RevenueBase Data Team. Top 25 telecommunications providers based in Madrid, Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecommunications-providers/spain/madrid.
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
- Telecommunications providers based in Brisbane, Australia
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Company intelligence · public preview
Top 25 telecommunications providers based in Madrid, Spain
RevenueBase records 140 matching company records for telecommunications providers based in Madrid, Spain, with 61,091 tracked contacts and 6,349 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 19, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 telecommunications providers based in Madrid, Spain
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 | Telefónicatelefonica.com HQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 54,718 contacts → |
“Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Avatel Telecomavatel.es HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 698 contacts → |
“Somos Avatel Telecom, compañía de telecomunicaciones en España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Vodafone Españavodafone.es HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 613 contacts → |
“Vodafone España es una empresa de telecomunicaciones con más de 15 millones de clientes.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Telxiustelxius.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 294 contacts → |
“As the world’s needs for uninterrupted global interconnectivity continue to rise, we are preparing the road ahead.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Telyco Seleccióntelyco-grupotelefonica.ofertas-trabajo.infojobs.net HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 184 contacts → |
“Quiénes somos?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Coyser SAcoyser.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | B2comb2com.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 72 contacts → |
“Premium Numbers, operador de telecomunicaciones inscrito en la CMT y con numeración propia, fue fundada en el año 2.001, siendo una de las empresas del sector de la telefonía de…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Huawei CBG Españaconsumer.huawei.com HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 66 contacts → |
“La misión de Huawei se basa en su propósito de enriquecer la vida a través de la comunicación.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Soditelsoditel.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 55 contacts → |
“SODITEL NUEVO PARTNER TECNOLÓGICO DE AASTRA EN ESPAÑA El gran nivel profesional y su avalada y reconocida garantía en la prestación de servicios profesionales, han convertido a…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Correos Telecom, S.Acorreostelecom.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 46 contacts → |
“For the past 24 years, we have been offering telecommunication services over backbone network infrastructures, circuits, VPN.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Silbö Telecomsilbotelecom.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 41 contacts → |
“Silbö es la nueva telco que solo te contará cosas que suenan bien.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Olin Groupolingroup.es HQ: Madrid, SpainReported employees: Not recorded | Madrid, Spain | Not recorded | Exact match | 32 contacts → |
“At Olin Group we are experts in telecommunications services in the regional market; both for wholesalers, with our high-speed Olinfra network, and for retailers through the…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | SCT Telecomsct.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 26 contacts → |
“SCT Telecom, S.A, 30 años dedicados a la distribución de productos y accesorios complementarios en el entorno de las comunicaciones fijas y móviles, ocupando un puesto relevante…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Smartgroupsmartgroup.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 26 contacts → |
“We are a leading provider of Telecommunications services for large companies, SMEs, self-employed professionals, and individuals.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Tecnimart Comunicacionestecnimart.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 22 contacts → |
“Desde 1989, en TECNIMART estamos dedicados al desarrollo de proyectos de telecomunicaciones dentro y fuera de España en los sectores de Sanidad Hospitales, Seguros, Automoción y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Hiper Antenahiperantena.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 18 contacts → |
“Con una trayectoria de más de 30 años y una dilatada y sólida experiencia en el sector de las Telecomunicaciones, Hiper Antena ofrece al profesional todo los productos con la…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Balesia Technologies, INCbalesia.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 13 contacts → |
“Balesia Technologies Inc, part of the Balesia group, an American company with more than 40 years of experience and telecommunications management experience in more than 60…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | MINTTmintt.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 10 contacts → |
“Mintt es el operador de telecomunicaciones (licencia de la CMT) especializado en servicios para empresas, que automatizan los procesos de atención de sus usuarios.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | TEL Iberica SAteltelecom.com.br HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 10 contacts → |
“Tel Telecomunicaciones es una de las empresas más importantes y cualificadas para prestar servicios en el campo de las telecomunicaciones.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Lineoxlineox.es HQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 9 contacts → |
“Lineox es una compañía creada por Asterion Industrial Partners - firma de inversión independiente - tras adquirir toda la red de radioenlaces de Telefónica en España.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Elantaelanta.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | HQ: Madrid, SpainReported employees: 1-10 | Madrid, Spain | 1-10 | Exact match | 5 contacts → |
“Servicio Integral de Comunicaciones Soluciones de Telefonía Móvil Planes claros Tarifas únicas Sin Permanencia Soluciones de Centralita Virtual Voz IP con la máxima calidad y…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Dos4siete Telecomdos4siete.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 4 contacts → |
“DOS4SIETE TELECOM | Centralita Virtual Pymes, CallBots, fija, móvil e internet.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NOVAnova.es HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 3 contacts → |
“Somos un Proveedor Tecnológico con más de 25 años de experiencia en el sector de las telecomunicaciones, formado por un equipo multidisciplinar, experto en adaptarse a las…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Iberfibra Fibra Ópticaiberfibra.com HQ: Madrid, SpainReported employees: 11-50 | Madrid, Spain | 11-50 | Exact match | 3 contacts → |
“Iberfibra e Iberfibra Fibra Óptica son marcas comerciales registradas de Iberfibra Gestión de Redes de Banda Ancha S.A.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Telecommunications providers: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
139 records in the displayed employee bands.
1 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 Spain list rather than for Madrid, so it is reported there. Company counts and contact totals on this page are exact for Madrid, over 140 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 19, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Telecommunications providers by metro in Spain
Questions about this company list
What does Exact match mean for telecommunications providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many telecommunications providers did RevenueBase find based in Madrid, Spain?
The saved snapshot records 140 matching company records, 61,091 tracked contacts and 6,349 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 19, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 telecommunications providers based in Madrid, Spain. Snapshot: September 19, 2026. https://revenuebase.ai/companies/telecommunications-providers/spain/madrid.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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