Company lists · Data refreshed November 2026

Top 25 Managed telecommunications services providers based in Spain

RevenueBase identified 726 company matches for managed telecommunications services providers associated with Spain as of November 2026 and tracks 69,028 professional contacts across them, including 7,062 with verified work emails. Madrid is the largest hub.

This list covers company matches for managed telecommunications services providers 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 November 6, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
726Companies
69,028Contacts tracked
7,062Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest managed telecommunications services providers based in Spain

Ranked by team size
Top 25 of 726 company matches for managed telecommunications services providers based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMadrid, SpainHQ recorded Nov 6, 202610001+57,647 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact matchPaterna, SpainHQ recorded Nov 6, 20261,001-5,000810 contacts →

Exact match

“NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchCórdoba, SpainHQ recorded Nov 6, 20261,001-5,000760 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchA Coruña, SpainHQ recorded Nov 6, 2026501-1,000435 contacts →

Exact match

“CommCenter es uno de los distribuidores de telecomunicaciones independientes de mayor impacto en nuestro país.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchAlcobendas, SpainHQ recorded Nov 6, 2026201-500288 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchElche, SpainHQ recorded Nov 6, 2026201-500152 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchRivas Vaciamadrid, SpainHQ recorded Nov 6, 2026201-500152 contacts →

Exact match

“Eltec es una compañía líder en la prestación de soluciones y servicios tecnológicos para el soporte y mantenimiento de equipos TIC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchCornellà De Llobregat, SpainHQ recorded Nov 6, 2026201-500150 contacts →

Exact match

“Inet es una empresa del grupo AXIS CORPORATE especializada en procesos de despliegue y mantenimiento de infraestructuras tecnológicas y comunicaciones para empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMálaga, SpainHQ recorded Nov 6, 2026201-500145 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchAlicante, SpainHQ recorded Nov 6, 2026201-500139 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSantander, SpainHQ recorded Nov 6, 2026201-500133 contacts →

Exact match

“Ámbar Telecomunicaciones es una empresa de ingeniería especializada en la integración global de sistemas de comunicación, que centra su actividad en el diseño, instalación y…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMálaga, SpainHQ recorded Nov 6, 2026501-1,000123 contacts →

Exact match

“Empresa cualificada y especializada en la instalación y mantenimiento de redes y equipos de telecomunicaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMadrid, SpainHQ recorded Nov 6, 202651-200104 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchZamudio, SpainHQ recorded Nov 6, 202651-200100 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 · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Coyser S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAlicante, SpainHQ recorded Nov 6, 20261,001-5,00096 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHospitalet De Llobregat, SpainHQ recorded Nov 6, 20261,001-5,00089 contacts →

Exact match

“Founded in 1996, Claranet is one of Europe's leading managed IT services providers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20086 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20084 contacts →

Exact match

“SORTIS: Líder en Soluciones Integrales de Telecomunicaciones y TI desde 2005.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20082 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 · Nov 6, 2026 · View company records in RevenueBase
21Exact matchErandio, SpainHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“Tu operador de Telecomunicaciones”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 202651-20071 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSan Fernando De Henares, SpainHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“OFFSHORETECH is a leading company in the Mobility Managed Services (MMS) industry, providing: Consultancy in designing a comprehensive mobility plan for the digital workplace…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-20065 contacts →

Exact match

“Contec Consulting es una consultoría independiente de telecomunicaciones, con capital 100 % nacional y creada en el año Damos soporte a nuestros clientes en los siguientes pilares…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLes Franqueses Del Vallés, SpainHQ recorded Nov 6, 2026201-50060 contacts →

Exact match

“ISP Grup nació en con la visión de que las telecomunicaciones serían el futuro.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 726 managed telecommunications services providers based in Spain

See the full list, filter by size, metro and specialty, and access 7,062 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Managed telecommunications services providers based in Spain at a glance

As of Nov 6, 2026
10.2%Verified-email coverage
95.1Average contacts per company
11-50Median size (employees)
16.1%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
333
11-50
284
51-200
65
201-500
21
501-1,000
5
1,001-5,000
5
5,001-10,000
1
10001+
2

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 726 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 “managed telecommunications services 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 7,062 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

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 “managed telecommunications services providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many managed telecommunications services providers are there based in Spain?

RevenueBase identified 726 company matches for managed telecommunications services providers associated with Spain as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Telefónica tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most managed telecommunications services providers?

Madrid leads with 117 company records, followed by Barcelona (48) and Malaga (25).

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 7,062 professional contacts with verified work emails tracked across these 726 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 726 managed telecommunications services providers based in Spain. Start with a free account, no credit card.

Download this list →

Related lists

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.