Company lists · Data refreshed September 2026
Top 25 Enterprise telecom companies based in Spain
RevenueBase identified 615 company matches for enterprise telecom companies associated with Spain as of September 2026 and tracks 65,547 professional contacts across them, including 7,198 with verified work emails. Madrid is the largest hub.
This list covers company matches for enterprise telecom companies associated with 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 21, 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 enterprise telecom companies based in 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 21, 2026 · View company records in RevenueBase | |||||
| 2 | 1,125 contacts → | ||||
Exact match “En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 739 contacts → | ||||
Exact match “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 701 contacts → | ||||
Exact match “OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 396 contacts → | ||||
Exact match “ONO es la compañía de comunicación y entretenimiento por fibra óptica líder en España.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 372 contacts → | ||||
Exact match “CommCenter es uno de los distribuidores de telecomunicaciones independientes de mayor impacto en nuestro país.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 298 contacts → | ||||
Exact match “Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 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 21, 2026 · View company records in RevenueBase | |||||
| 9 | 276 contacts → | ||||
Exact match “acens, perteneciente al Grupo acens Technologies, es una empresa proveedora de servicios de “Hosting”, “Housing” y Soluciones de Telecomunicaciones para el mercado empresarial.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 177 contacts → | ||||
Exact match “Aire Networks, encompasses all the communication services that a company needs to boost its business, with all the advantages and benefits of working with a single service…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 172 contacts → | ||||
Exact match “FULL ON NET es una empresa altamente especializada en desarrollos y servicios dentro del entorno tecnológico de Internet y las Telecomunicaciones, dirigida e integrada por…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 161 contacts → | ||||
Exact match “Set up in 2011, Gigas is an international group specializing in providing converged and turnkey communications and cloud services for businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 155 contacts → | ||||
Exact match “eXperience es una empresa de servicios orientada al mercado de las Tecnologías de la Información y las Telecomunicaciones, dando soluciones integrales en las áreas de consultoría…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 132 contacts → | ||||
Exact match “Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 118 contacts → | ||||
Exact match “El Grupo INSTELCA es proveedor global de servicios de Telecomunicaciones, Redes e Informática con más de 30 años de experiencia y con una clara orientación al clientes que nos ha…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 105 contacts → | ||||
Exact match “VozTelecom es la compañía especialista en comunicaciones cloud y líder en telefonía IP dentro del segmento de la pequeña y mediana empresa en España.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 93 contacts → | ||||
Exact match “mdtel is a manufacturer and integrator of corporate telecommunications solutions for business environments with more than 20 years of experience.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 90 contacts → | ||||
Exact match “Sarenet es el proveedor de voz y datos con más experiencia de cuantos hoy operan en España.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 90 contacts → | ||||
Exact match “Telecomunicación de Levante (Teleco) inició su actividad hace más de tres décadas con Telefónica como principal cliente.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 88 contacts → | ||||
Exact match “Coyser S.A.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 85 contacts → | ||||
Exact match “AFR-IX telecom is a global telecommunications infrastructure group with licensed operations and infrastructure presence across Europe, Africa, Middle East and the Americas…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 82 contacts → | ||||
Exact match “SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 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 21, 2026 · View company records in RevenueBase | |||||
| 24 | 72 contacts → | ||||
Exact match “Tu operador de Telecomunicaciones” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 67 contacts → | ||||
Exact match “Founded in 1996, Claranet is one of Europe's leading managed IT services providers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “enterprise telecom 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 615 enterprise telecom companies based in Spain
See the full list, filter by size, metro and specialty, and access 7,198 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Enterprise telecom companies based in Spain at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 615 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 Spain whose business descriptions match “enterprise telecom 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. 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 7,198 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 21, 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.
Enterprise telecom companies by metro
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “enterprise telecom companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many enterprise telecom companies are there based in Spain?
RevenueBase identified 615 company matches for enterprise telecom companies associated with 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 has the most enterprise telecom companies?
Madrid leads with 98 company records, followed by Barcelona (47) and Malaga (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 7,198 professional contacts with verified work emails tracked across these 615 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 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 615 enterprise telecom companies based in Spain. Start with a free account, no credit card.
Download this list →Related lists
Enterprise telecom companies by geography
- Enterprise telecom companies based in Brisbane, Australia
- Enterprise telecom companies based in Melbourne, Australia
- Enterprise telecom companies based in Sydney, Australia
- Enterprise telecom companies based in Belo Horizonte, Brazil
- Enterprise telecom companies based in Curitiba, Brazil
- Enterprise telecom companies based in Fortaleza, Brazil
- Enterprise telecom companies based in Porto Alegre, Brazil
- Enterprise telecom companies based in Rio De Janeiro, Brazil
- Enterprise telecom companies based in Sao Paulo, Brazil
- Enterprise telecom companies based in Mississauga, Canada
- Enterprise telecom companies based in Montreal, Canada
- Enterprise telecom companies based in Toronto, Canada
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Enterprise telecom companies based in Brisbane, Australia
- Enterprise telecom companies based in Melbourne, Australia
- Enterprise telecom companies based in Sydney, Australia
- Enterprise telecom companies based in Belo Horizonte, Brazil
- Enterprise telecom companies based in Curitiba, Brazil
- Enterprise telecom companies based in Fortaleza, Brazil
Company intelligence · public preview
Top 25 enterprise telecom companies based in Spain
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 615 matching company records for enterprise telecom companies based in Spain, with 65,547 tracked contacts and 7,198 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 21, 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 enterprise telecom companies based in 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Zelenzazelenza.comHQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 1,125 contacts → |
“En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Nunsysnunsys.comHQ: Paterna, SpainReported employees: 1,001-5,000 | Paterna, Spain | 1,001-5,000 | Exact match | 739 contacts → |
“NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  OFGofg.esHQ: Córdoba, SpainReported employees: 1,001-5,000 | Córdoba, Spain | 1,001-5,000 | Exact match | 701 contacts → |
“OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  ONOono.esHQ: Pozuelo De Alarcón, SpainReported employees: 1,001-5,000 | Pozuelo De Alarcón, Spain | 1,001-5,000 | Exact match | 396 contacts → |
“ONO es la compañía de comunicación y entretenimiento por fibra óptica líder en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Commcentercommcenter.esHQ: A Coruña, SpainReported employees: 501-1,000 | A Coruña, Spain | 501-1,000 | Exact match | 372 contacts → |
“CommCenter es uno de los distribuidores de telecomunicaciones independientes de mayor impacto en nuestro país.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Adamo Telecom Iberia S.A.Uadamo.esHQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 298 contacts → |
“Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ACENSacens.comHQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 276 contacts → |
“acens, perteneciente al Grupo acens Technologies, es una empresa proveedora de servicios de “Hosting”, “Housing” y Soluciones de Telecomunicaciones para el mercado empresarial.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Aire Networksairenetworks.esHQ: Elche, SpainReported employees: 201-500 | Elche, Spain | 201-500 | Exact match | 177 contacts → |
“Aire Networks, encompasses all the communication services that a company needs to boost its business, with all the advantages and benefits of working with a single service…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Full On NETfull-on-net.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 172 contacts → |
“FULL ON NET es una empresa altamente especializada en desarrollos y servicios dentro del entorno tecnológico de Internet y las Telecomunicaciones, dirigida e integrada por…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  GIGASgigas.comHQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 161 contacts → |
“Set up in 2011, Gigas is an international group specializing in providing converged and turnkey communications and cloud services for businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Experience IT Solutionsexperienceis.comHQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 155 contacts → |
“eXperience es una empresa de servicios orientada al mercado de las Tecnologías de la Información y las Telecomunicaciones, dando soluciones integrales en las áreas de consultoría…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Cableworldcableworld.esHQ: Alicante, SpainReported employees: 201-500 | Alicante, Spain | 201-500 | Exact match | 132 contacts → |
“Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Instelcainstelca.comHQ: Málaga, SpainReported employees: 201-500 | Málaga, Spain | 201-500 | Exact match | 118 contacts → |
“El Grupo INSTELCA es proveedor global de servicios de Telecomunicaciones, Redes e Informática con más de 30 años de experiencia y con una clara orientación al clientes que nos ha…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Gamma Comunicacionesgammacom.esHQ: Cerdanyola Del Vallés, SpainReported employees: 51-200 | Cerdanyola Del Vallés, Spain | 51-200 | Exact match | 105 contacts → |
“VozTelecom es la compañía especialista en comunicaciones cloud y líder en telefonía IP dentro del segmento de la pequeña y mediana empresa en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  MDTELmdtel.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 93 contacts → |
“mdtel is a manufacturer and integrator of corporate telecommunications solutions for business environments with more than 20 years of experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Sarenetsarenet.esHQ: Zamudio, SpainReported employees: 51-200 | Zamudio, Spain | 51-200 | Exact match | 90 contacts → |
“Sarenet es el proveedor de voz y datos con más experiencia de cuantos hoy operan en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Telecomunicación DE Levante SLzener.esHQ: Alicante, SpainReported employees: 1,001-5,000 | Alicante, Spain | 1,001-5,000 | Exact match | 90 contacts → |
“Telecomunicación de Levante (Teleco) inició su actividad hace más de tres décadas con Telefónica como principal cliente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Coyser SAcoyser.comHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Afr-Ix Telecomafr-ix.comHQ: Sant Adrià De Besòs, SpainReported employees: 51-200 | Sant Adrià De Besòs, Spain | 51-200 | Exact match | 85 contacts → |
“AFR-IX telecom is a global telecommunications infrastructure group with licensed operations and infrastructure presence across Europe, Africa, Middle East and the Americas…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Sortissortis.esHQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 82 contacts → |
“SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Ausartaaureamotriz.comHQ: Erandio, SpainReported employees: 51-200 | Erandio, Spain | 51-200 | Exact match | 72 contacts → |
“Tu operador de Telecomunicaciones” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Claranet Spainclaranet.esHQ: Hospitalet De Llobregat, SpainReported employees: 1,001-5,000 | Hospitalet De Llobregat, Spain | 1,001-5,000 | Exact match | 67 contacts → |
“Founded in 1996, Claranet is one of Europe's leading managed IT services providers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 615 company matches
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Enterprise telecom companies: dataset insights
September 21, 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
610 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 615 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 21, 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 ↗
Enterprise telecom companies by metro
Questions about this company list
What does Exact match mean for enterprise telecom 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 enterprise telecom companies did RevenueBase find based in Spain?
The saved snapshot records 615 matching company records, 65,547 tracked contacts and 7,198 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 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Enterprise telecom companies by geography
- Enterprise telecom companies based in Brisbane, Australia
- Enterprise telecom companies based in Melbourne, Australia
- Enterprise telecom companies based in Sydney, Australia
- Enterprise telecom companies based in Belo Horizonte, Brazil
- Enterprise telecom companies based in Curitiba, Brazil
- Enterprise telecom companies based in Fortaleza, Brazil
- Enterprise telecom companies based in Porto Alegre, Brazil
- Enterprise telecom companies based in Rio De Janeiro, Brazil
- Enterprise telecom companies based in Sao Paulo, Brazil
- Enterprise telecom companies based in Mississauga, Canada
- Enterprise telecom companies based in Montreal, Canada
- Enterprise telecom companies based in Toronto, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 enterprise telecom companies based in Spain. Snapshot: September 21, 2026. https://revenuebase.ai/companies/enterprise-telecom-companies/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Enterprise telecom companies based in Brisbane, Australia
- Enterprise telecom companies based in Melbourne, Australia
- Enterprise telecom companies based in Sydney, Australia
- Enterprise telecom companies based in Belo Horizonte, Brazil
- Enterprise telecom companies based in Curitiba, Brazil
- Enterprise telecom companies based in Fortaleza, Brazil
Company intelligence · public preview
Top 25 enterprise telecom companies based in Spain
RevenueBase records 615 matching company records for enterprise telecom companies based in Spain, with 65,547 tracked contacts and 7,198 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 21, 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 enterprise telecom companies based in 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Zelenzazelenza.com HQ: Madrid, SpainReported employees: 1,001-5,000 | Madrid, Spain | 1,001-5,000 | Exact match | 1,125 contacts → |
“En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Nunsysnunsys.com HQ: Paterna, SpainReported employees: 1,001-5,000 | Paterna, Spain | 1,001-5,000 | Exact match | 739 contacts → |
“NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | OFGofg.es HQ: Córdoba, SpainReported employees: 1,001-5,000 | Córdoba, Spain | 1,001-5,000 | Exact match | 701 contacts → |
“OFG is an international company with more than 20 years of experience in the telecommunications sector.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ONOono.es HQ: Pozuelo De Alarcón, SpainReported employees: 1,001-5,000 | Pozuelo De Alarcón, Spain | 1,001-5,000 | Exact match | 396 contacts → |
“ONO es la compañía de comunicación y entretenimiento por fibra óptica líder en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Commcentercommcenter.es HQ: A Coruña, SpainReported employees: 501-1,000 | A Coruña, Spain | 501-1,000 | Exact match | 372 contacts → |
“CommCenter es uno de los distribuidores de telecomunicaciones independientes de mayor impacto en nuestro país.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Adamo Telecom Iberia S.A.Uadamo.es HQ: Barcelona, SpainReported employees: 51-200 | Barcelona, Spain | 51-200 | Exact match | 298 contacts → |
“Adamo is a telecom operator with Swedish origin operating in Spain since 2007.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ACENSacens.com HQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 276 contacts → |
“acens, perteneciente al Grupo acens Technologies, es una empresa proveedora de servicios de “Hosting”, “Housing” y Soluciones de Telecomunicaciones para el mercado empresarial.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Aire Networksairenetworks.es HQ: Elche, SpainReported employees: 201-500 | Elche, Spain | 201-500 | Exact match | 177 contacts → |
“Aire Networks, encompasses all the communication services that a company needs to boost its business, with all the advantages and benefits of working with a single service…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Full On NETfull-on-net.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 172 contacts → |
“FULL ON NET es una empresa altamente especializada en desarrollos y servicios dentro del entorno tecnológico de Internet y las Telecomunicaciones, dirigida e integrada por…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | GIGASgigas.com HQ: Alcobendas, SpainReported employees: 201-500 | Alcobendas, Spain | 201-500 | Exact match | 161 contacts → |
“Set up in 2011, Gigas is an international group specializing in providing converged and turnkey communications and cloud services for businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Experience IT Solutionsexperienceis.com HQ: Madrid, SpainReported employees: 201-500 | Madrid, Spain | 201-500 | Exact match | 155 contacts → |
“eXperience es una empresa de servicios orientada al mercado de las Tecnologías de la Información y las Telecomunicaciones, dando soluciones integrales en las áreas de consultoría…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cableworldcableworld.es HQ: Alicante, SpainReported employees: 201-500 | Alicante, Spain | 201-500 | Exact match | 132 contacts → |
“Cableworld es la compañía de servicios de telecomunicaciones por fibra óptica líder en en sus zonas de influencia, en la que ofrecemos de manera integrada servicios de Internet…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Instelcainstelca.com HQ: Málaga, SpainReported employees: 201-500 | Málaga, Spain | 201-500 | Exact match | 118 contacts → |
“El Grupo INSTELCA es proveedor global de servicios de Telecomunicaciones, Redes e Informática con más de 30 años de experiencia y con una clara orientación al clientes que nos ha…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Gamma Comunicacionesgammacom.es HQ: Cerdanyola Del Vallés, SpainReported employees: 51-200 | Cerdanyola Del Vallés, Spain | 51-200 | Exact match | 105 contacts → |
“VozTelecom es la compañía especialista en comunicaciones cloud y líder en telefonía IP dentro del segmento de la pequeña y mediana empresa en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MDTELmdtel.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 93 contacts → |
“mdtel is a manufacturer and integrator of corporate telecommunications solutions for business environments with more than 20 years of experience.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Sarenetsarenet.es HQ: Zamudio, SpainReported employees: 51-200 | Zamudio, Spain | 51-200 | Exact match | 90 contacts → |
“Sarenet es el proveedor de voz y datos con más experiencia de cuantos hoy operan en España.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Telecomunicación DE Levante SLzener.es HQ: Alicante, SpainReported employees: 1,001-5,000 | Alicante, Spain | 1,001-5,000 | Exact match | 90 contacts → |
“Telecomunicación de Levante (Teleco) inició su actividad hace más de tres décadas con Telefónica como principal cliente.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Coyser SAcoyser.com HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 88 contacts → |
“Coyser S.A.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Afr-Ix Telecomafr-ix.com HQ: Sant Adrià De Besòs, SpainReported employees: 51-200 | Sant Adrià De Besòs, Spain | 51-200 | Exact match | 85 contacts → |
“AFR-IX telecom is a global telecommunications infrastructure group with licensed operations and infrastructure presence across Europe, Africa, Middle East and the Americas…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sortissortis.es HQ: Madrid, SpainReported employees: 51-200 | Madrid, Spain | 51-200 | Exact match | 82 contacts → |
“SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | 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 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Ausartaaureamotriz.com HQ: Erandio, SpainReported employees: 51-200 | Erandio, Spain | 51-200 | Exact match | 72 contacts → |
“Tu operador de Telecomunicaciones” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Claranet Spainclaranet.es HQ: Hospitalet De Llobregat, SpainReported employees: 1,001-5,000 | Hospitalet De Llobregat, Spain | 1,001-5,000 | Exact match | 67 contacts → |
“Founded in 1996, Claranet is one of Europe's leading managed IT services providers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Enterprise telecom companies: dataset insights
September 21, 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
610 records in the displayed employee bands.
5 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 615 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 21, 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 ↗
Enterprise telecom companies by metro
Questions about this company list
What does Exact match mean for enterprise telecom 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 enterprise telecom companies did RevenueBase find based in Spain?
The saved snapshot records 615 matching company records, 65,547 tracked contacts and 7,198 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 21, 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 enterprise telecom companies based in Spain. Snapshot: September 21, 2026. https://revenuebase.ai/companies/enterprise-telecom-companies/spain.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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