Company lists · Data refreshed November 2026

Top 25 Managed telecom services providers based in Spain

RevenueBase identified 439 company matches for managed telecom services providers associated with Spain as of November 2026 and tracks 6,637 professional contacts across them, including 864 with verified work emails. Madrid is the largest hub.

This list covers company matches for managed telecom 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
439Companies
6,637Contacts tracked
864Verified emails
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The 25 largest managed telecom services providers based in Spain

Ranked by team size
Top 25 of 439 company matches for managed telecom 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 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
2Exact matchCórdoba, SpainHQ recorded Nov 6, 2026501-1,000465 contacts →

Exact match

“Con un completo servicio de Televisión, Internet de fibra óptica, Telefonía Fija y Móvil, PTV Telecom se presenta como una empresa de telecomunicaciones con más de 40 años de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchPozuelo De Alarcón, SpainHQ recorded Nov 6, 20261,001-5,000464 contacts →

Exact match

“ONO es la compañía de comunicación y entretenimiento por fibra óptica líder en España.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBarcelona, SpainHQ recorded Nov 6, 202651-200306 contacts →

Exact match

“Adamo is a telecom operator with Swedish origin operating in Spain since 2007.”

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 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
7Exact 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
8Exact 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
9Exact 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
10Exact 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
11Exact 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
12Exact 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
13Exact 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
14Exact 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
15Exact 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
16Exact matchSabadell, SpainHQ recorded Nov 6, 202651-20051 contacts →

Exact match

“Confiamos en que nuestros valores y filosofía nos van a llevar muy lejos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5050 contacts →

Exact match

“Más de 50 años liderando la transformación digital Somos una empresa de servicios del sector de las telecomunicaciones, con un origen familiar, especialistas en la integración de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchCatral, SpainHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Somos una empresa proveedora de servicios de telecomunicaciones con más de 10 años de experiencia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchZaragoza, SpainHQ recorded Nov 6, 202651-20049 contacts →

Exact match

“Ingeniería, Consultoría e Instalación de Telecomunicaciones Trabajamos a nivel local, regional y nacional tanto para pequeñas y medianas empresas como para grandes organizaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMurcia, SpainHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“FIBRANET | Operador Nacional de Telecomunicaciones FIBRANET es un operador de telecomunicaciones con más de 30 años de experiencia en el sector perteneciente a Olin Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchZaragoza, SpainHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Somos la operadora aragonesa líder en red de acceso a banda ancha en Aragón y zonas limítrofes mediante la integración de las tecnologías más avanzadas en telecomunicaciones.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMadrid, SpainHQ recorded Nov 6, 2026n/a34 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 · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“iquadrat desarrolla desde 1997 soluciones globales y servicios en la utilización de Internet y las Telecomunicaciones a empresas e instituciones que utilizan las tecnologías de la…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchZaragoza, SpainHQ recorded Nov 6, 202611-5032 contacts →

Exact match

“Somos un equipo de personas, especialistas en telecomunicaciones para empresas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchAlcobendas, SpainHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“Zertia Telecomunicaciones es un proveedor global de Servicios Gestionados de Telecomunicaciones para empresas, que ofrece soluciones y proyectos a medida, encargándose de la…”

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

Showing 25 of 439 managed telecom services providers based in Spain

See the full list, filter by size, metro and specialty, and access 864 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Managed telecom services providers based in Spain at a glance

As of Nov 6, 2026
13.0%Verified-email coverage
15.1Average contacts per company
11-50Median size (employees)
15.0%Largest-city concentration · Madrid
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
190
11-50
177
51-200
43
201-500
13
501-1,000
4
1,001-5,000
2
10001+
1

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 439 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 telecom 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 864 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 telecom services providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 439 company matches for managed telecom 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?

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

Which city has the most managed telecom services providers?

Madrid leads with 66 company records, followed by Barcelona (32) and Malaga (16).

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 864 professional contacts with verified work emails tracked across these 439 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.

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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.